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VOL 5 | <strong>ISSUE</strong> 7<br />

PAGES 100<br />

<strong>NOVEMBER</strong> <strong>2018</strong><br />

FUTUREMEDICINEINDIA.COM<br />

IMMUNOTHERAPY FOR<br />

LUNG<br />

CANCER<br />

WILL CHECKPOINT BLOCKERS ALTER<br />

WELL-ENTRENCHED TREATMENT ALGORITHMS?<br />

COPD REGULATORY DRUG RESISTANCE CASE REPORT<br />

EBV INTERVENTION<br />

IN EMPHYSEMA<br />

MCI IN DIRE<br />

STRAITS<br />

TACKLING<br />

EMERGING<br />

PATHOGENS<br />

ABERNETHY -<br />

AN UNUSUAL<br />

SUSPECT


editor’s note<br />

<strong>NOVEMBER</strong> AUGUST <strong>2018</strong> <strong>2018</strong> / Vol: / Vol. 5 5 / Issue: / Issue 4 7<br />

Founder & & Editor Editor<br />

CH Unnikrishnan<br />

Executive Editor Editor<br />

S Harachand<br />

Harachand<br />

Science Editor<br />

Science Editor<br />

Dr Rajanikant Vangala<br />

Dr Rajanikant Vangala<br />

Consulting Editors<br />

Dr Copy Shivanee Editor Shah<br />

Jeetha Sreejiraj D’Silva Eluvangal<br />

Dr Consulting Sumit Ghoshal Editors<br />

Copy Dr Shivanee Editor Shah<br />

Sreejiraj Dr Sumit Ghoshal Eluvangal<br />

Curator-cum-Correspondent<br />

Photo Editor<br />

Divya<br />

Umesh<br />

Choyikutty<br />

Goswami<br />

Photo Editor<br />

Illustrator<br />

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Design Editor<br />

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Dear Doctor,<br />

Dear Doctor<br />

Oncology is again in focus for us, which should not come as a surprise given<br />

the<br />

We<br />

extent<br />

know you<br />

of the<br />

are<br />

problem.<br />

busy. It is<br />

When<br />

always<br />

the<br />

reassuring<br />

entire world<br />

that<br />

of<br />

the<br />

medical<br />

trust and<br />

research<br />

faith of<br />

is<br />

firefighting to counter this monster, it will remain in our focus till we can be<br />

hundreds of patients in your healing touch keeps you busy in this noble<br />

sure that we have brought you the very last bit of technological breakthrough<br />

profession. In the hectic practice, it’s quite natural that you might miss<br />

on this topic.<br />

out on some of the latest developments in emerging medicine. In this era<br />

After an in-depth cover on liquid biopsy — a new revolutionary tool in the<br />

of innovation, medical science is getting redefined almost by the day. Old<br />

hands of oncologists for cancer tracking — in August, we now bring you the<br />

technologies are being replaced by the new in the blink of an eye. Robots<br />

latest in lung cancer, the most complex cancer to deal with. Immunotherapy<br />

and artificial intelligence are taking over a good part of the procedures,<br />

and a few other novel techniques are here to break new ground in managing<br />

while genomics and molecular science unveil the mysteries of life further.<br />

lung cancer, which has otherwise proven to be difficult to tame.<br />

We are fortunate to have such breakthroughs as they help specialists like<br />

COPD has been another largely prevalent but difficult-to-treat disease in<br />

you rise above the expectations of today’s informed patient.<br />

India due to limitations in traditional treatments. We are also excited to tip<br />

you about the new hope in endobronchial valve treatment in patients with<br />

emphysema.<br />

Similarly, it is also a time when India is witnessing revolutionary growth in<br />

healthcare industry, especially in the private sector, wherein an increasing<br />

I am sure you are fully aware of the other healthcare crisis that India<br />

and<br />

number<br />

the world<br />

of doctors<br />

at large<br />

are<br />

are<br />

taking<br />

likely<br />

up<br />

to<br />

multiple<br />

face in the<br />

roles<br />

very<br />

of clinician,<br />

near future<br />

researcher<br />

— the fastemerging,<br />

and<br />

entrepreneur.<br />

antibiotic-resistant<br />

This requires expansion<br />

pathogens.<br />

of your<br />

Our science<br />

focus to<br />

editor<br />

a wider<br />

Dr Rajanikant<br />

canvas. In<br />

Vangala this context, sheds it becomes light on the important urgent need how to a busy stop professional irrational antibiotic like you use can at all<br />

four keep stages pace with of treatment these latest — diagnosis, developments prescription, in a quick dispensing and easy and way. patient<br />

adherence.<br />

At With Future a variety Medicine, of other which scientific is conceived as well and as crafted regulatory by a updates, team of including senior<br />

the journalists, hot Union scientists vs IMA and debate doctors, on the our proposed aim is to NMC help Bill, you we’ve do just ensured that. We that<br />

you are equipped have an exciting to bring and you well-packaged the latest from information the science tool of in care your from hands across this<br />

time. the world in an interesting and convenient way, supplemented by the best<br />

of Happy views and reading, analyses from the masters in each field. We present you this<br />

specialised knowledge vehicle that plugs you into the emerging world of<br />

care seamlessly. Come, let’s join hands in this information journey.<br />

CH Unnikrishnan<br />

editor@futuremedicineindia.com<br />

C H Unnikrishnan<br />

editor@futuremedicineindia.com<br />

www.futuremedicineindia.com futuremedicineindia FutureMedIndia<br />

AUGUST <strong>2018</strong>/ FUTURE MEDICINE / 3


Vol 5 Issue 7<br />

November <strong>2018</strong><br />

₹ 250.00<br />

VOL 5 | <strong>ISSUE</strong> 7<br />

PAGES 100<br />

<strong>NOVEMBER</strong> <strong>2018</strong><br />

FUTUREMEDICINEINDIA.COM<br />

IMMUNOTHERAPY FOR<br />

LUNG<br />

CANCER<br />

38<br />

WILL CHECKPOINT BLOCKERS ALTER<br />

WELL-ENTRENCHED TREATMENT ALGORITHMS?<br />

CASE REPORT DRUG RESISTANCE REGULATORY COPD<br />

ABERNETHY - TACKLING<br />

MCI IN DIRE EBV INTERVENTION<br />

AN UNUSUAL EMERGING<br />

STRAITS<br />

IN EMPHYSEMA<br />

SUSPECT<br />

PATHOGENS<br />

REGULAR FEATURES<br />

CASE REPORT<br />

GENE THERAPY<br />

FOR BLINDNESS<br />

06 Letters<br />

08 News updates<br />

12 Regulatory<br />

34 Drug approvals<br />

50 Education<br />

56 Research snippets<br />

66 Hospital news<br />

68 Insurance<br />

70 Public health<br />

76 Research<br />

78 Orthopaedics<br />

82 Devices<br />

88 Events<br />

94 Calendar<br />

95 Book review<br />

98 Holy grail<br />

Columns<br />

20 THE CATALYST<br />

Muralidharan Nair<br />

58 TRIALOMICS<br />

Dr Arun Bhatt<br />

60<br />

POLICY<br />

TAKING OUT<br />

THE STIGMA<br />

Notwithstanding the new<br />

mental health act, experts feel<br />

protecting the rights of the<br />

mentally ill will be<br />

an uphill task<br />

12<br />

REGULATORY<br />

MCI IN DIRE<br />

STRAITS<br />

The fate of the medical council<br />

hangs in balance as govt<br />

enforces a governing body<br />

through an ordinance<br />

14<br />

DRUG RESISTANCE<br />

TACKLING<br />

EMERGING<br />

PATHOGENS<br />

Stopping irrational antibiotic<br />

use in all the four stages of<br />

treatment cycle is the<br />

need of the hour


COPD<br />

64<br />

EBV INTERVENTION<br />

IN EMPHYSEMA<br />

Endoscopic<br />

lung volume<br />

reduction using<br />

endobronchial<br />

valves is an<br />

emerging<br />

option for COPD<br />

patients<br />

Cancer<br />

immunotherapy<br />

has been in the<br />

doghouse for<br />

decades.<br />

54<br />

STRAIGHT TALK<br />

“I AM IN FAVOUR OF<br />

OPEN ACCESS, IT’S<br />

A GOOD MODEL”<br />

Myles Axton<br />

Chief editor, Nature Genetics<br />

Dr Vishva M Dixit<br />

Vice President<br />

and Staff Scientist,<br />

Physiological<br />

Chemistry at<br />

Genentech, San<br />

Francisco, CA.<br />

22<br />

COVER STORY<br />

IMMUNO PATH TO<br />

LUNG CANCER<br />

Immunotherapy comes as a silver lining<br />

for the sufferers of a malignancy which<br />

has the highest incidence and the<br />

bleakest prognosis


REGULATORY DIAGNOSTICS HEAD & NECK CANCER CASE REPORT<br />

letters to the editor<br />

COMBO-DRUGS<br />

ON THEIR<br />

WAY OUT?<br />

MICRODELETION:<br />

LOST IN<br />

TRANSLATION<br />

EXCITING FRONTIERS<br />

KNOWING<br />

ORAL CANCER<br />

STAGING BY<br />

DEPTH OF INVASION<br />

Roll of ECG in<br />

epilepsy diagnosis<br />

₹ 250.00<br />

VOL 5 | <strong>ISSUE</strong> 6<br />

PAGES 100<br />

OCTOBER <strong>2018</strong><br />

FUTUREMEDICINEINDIA.COM<br />

NON-INVASIVE PRENATAL<br />

SCREENING ENTERS<br />

THE UNBORN<br />

HOW SHE<br />

REGAINED<br />

HER LOST TASTE<br />

The Editor<br />

We were pleased to read the<br />

article titled “Heart rhythm<br />

disorders mimicking epilepsy”<br />

by Dr. Shivanee Shah in Vol.<br />

5, Issue 5, bringing this issue<br />

to the notice of the readers.<br />

The article failed to mention<br />

that these patients have the<br />

“Long QT syndrome”. Such<br />

families have an abnormality<br />

in the ECG, which gives a clue<br />

to the presence of the Long<br />

QT syndrome. Prolongation<br />

of QTc more than 440ms<br />

(milli seconds) points to this<br />

diagnosis. We have seen<br />

more than 100 families of<br />

this syndrome at our Institute<br />

over a period of 7 years.<br />

The patients present with<br />

a history of sudden loss of<br />

consciousness, truly a syncopy,<br />

but often misdiagnosed as<br />

epilepsy. These defects arise<br />

due to defects in cardiac<br />

channels that control the<br />

rhythm of the heart. In cases<br />

with rhythm disturbances of<br />

the heart, ECG should always<br />

be done in patients and the<br />

parents. Commonly, Long<br />

QT and Brugada syndromes<br />

(BrS) show specific types of<br />

abnormalities on the ECG.<br />

They also have different<br />

triggers. For example,<br />

symptoms in patients with<br />

LQT1 occur due to exercise/<br />

stress, while in LQT2 patients<br />

due to sudden noises/<br />

emotions and patients with<br />

LQT3 and BrS have symptoms<br />

during sleep. Occasionally,<br />

these patients may have a<br />

normal QTc/ECG but still have<br />

defect in the gene. The most<br />

definite test for diagnosis in<br />

these patients is to sequence<br />

the channelopathy genes.<br />

Of 100 patients we studied,<br />

mutations were identified<br />

in 45. This not only helps to<br />

confirm the clinical diagnosis,<br />

but aids in detecting<br />

asymptomatic mutation<br />

carriers among relatives by<br />

cascade screening, counseling<br />

for prenatal diagnosis, and<br />

making effective treatment<br />

plan. We carried out cascade<br />

screening in 42 families, and<br />

mutations were identified<br />

in atleast one of the two<br />

parents, most (95%) of whom<br />

were asymptomatic. Of the<br />

nineteen siblings screened,<br />

sixteen were identified with<br />

mutations (84%) of which<br />

eleven were asymptomatic<br />

(69%). Majority of mutations<br />

identified were novel and<br />

different than those reported<br />

in the West. This was the first<br />

molecular cohort study of<br />

LQTS syndrome and Brugada<br />

syndrome patients of Indian<br />

origin. We have published<br />

our results [Vyas B, et al.<br />

Am J Med Genet A. 2016<br />

Jun;170(6):1510-9; Vyas B, et<br />

al. Indian Pacing Electrophysiol<br />

J. 2016 Jan-Feb;16(1):8-18].<br />

In conclusion, we would like<br />

to emphasize that ECG should<br />

be performed in all cases with<br />

sudden loss of consciousness<br />

before making the diagnosis<br />

of epilepsy.<br />

Bijal Vyas-Bhatia, Ratna Puri<br />

and Ishwar Verma<br />

Institute of Medical Genetics<br />

and Genomics.<br />

Sir Ganga Ram Hospital,<br />

New Delhi<br />

icverma@gmail.com<br />

Very relevant<br />

Sir<br />

The cover-story and the<br />

interview in the October<br />

<strong>edition</strong> made the reader<br />

really cognizant of the<br />

relevant ideas, information<br />

and existing chasms in the<br />

field. The contents in general<br />

provide a great informational<br />

platform for medical students,<br />

practitioners and basically any<br />

science readers.<br />

Arundhati<br />

Bangalore<br />

Exhilarating<br />

Hi<br />

Having read the previous<br />

<strong>edition</strong>s of Future Medicine,<br />

I feel privileged to mention it<br />

“exhilarating”. The magazine<br />

seems to be a pioneer<br />

project and gives a fresh<br />

feeling to the readers with<br />

well-explored themes. The<br />

authors offer great insight<br />

into issues related to the<br />

urgent medical needs and<br />

ongoing developments, with<br />

well outlined case-study and<br />

interviews. My best wishes to<br />

the future endeavors of the<br />

magazine.<br />

Dr Preeti Kamal<br />

Ghaziabad<br />

Cheap robotic surgery<br />

Dear Sir<br />

I would like to comment<br />

on Prof. Liselotte Mettler’s<br />

optimism that India is about<br />

to make the big revolution<br />

in cheaper robotic surgery.<br />

It’s really wonderful to hear<br />

this from one of the highly<br />

reputed experts in the field of<br />

gynaecology.<br />

Congrats on your initiative<br />

of Future Medicine, intended<br />

on converging relevant<br />

advancements and chasms in<br />

the medical field. Experienced<br />

a reader friendly approach,<br />

and appreciate the well<br />

written, precise quality of<br />

the contents put forward.<br />

Expecting more from the<br />

magazine in its subsequent<br />

<strong>edition</strong>. Best wishes.<br />

Sunesh Waghmare<br />

Pune<br />

Excellent work<br />

Hello<br />

It is a great magazine<br />

with well framed contents<br />

including exclusive interview<br />

with renowned doctors<br />

and latest news on the<br />

progressing fields of medical<br />

science. The magazine shows<br />

its excellence in being up-todate<br />

promoting the readers to<br />

be aware of the on goings in<br />

the field. Excellent work.<br />

Jina Bodhisatwa<br />

Raipur


A medical science and news magazine for every new-age<br />

clinician. It empowers doctors with the most relevant updates,<br />

trends, case studies, expert views, knowledge exchange,<br />

hospital management and latest breakthroughs in medical<br />

science. To be relevant in the future of care, subscribe today.<br />

AUGUST <strong>2018</strong>/ FUTURE MEDICINE / 59


news updates<br />

Labels on fluoroquinolones should<br />

alert on mental health risk: DCGI<br />

India’s drug regulator has<br />

directed safety labelling<br />

changes for antibiotics<br />

belonging to the class of<br />

fluoroquinolones to strengthen<br />

warnings about risks of mental<br />

health side effects and serious<br />

blood sugar disturbances.<br />

The Drugs Controller<br />

General of India (DCGI) made<br />

the labelling regulations for<br />

these antibiotics stricter after<br />

the recommendation of its<br />

Antimicrobial and Antiviral<br />

Subject Expert Committee.<br />

Through an order, the<br />

DCGI has directed all state<br />

drug controllers to ensure<br />

immediate implementation of<br />

the new labelling norms on<br />

all fluoroquinolone antibiotics<br />

such as levofloxacin,<br />

ciprofloxacin, moxifloxacin,<br />

ofloxacin and gemifloxacin.<br />

Apart from the cautionary<br />

note on the label saying<br />

the drug “may cause low<br />

blood sugar and mental<br />

health-related side effects”,<br />

the package insert and<br />

promotional literature<br />

should mention: “The drug<br />

may cause low blood sugar<br />

and mental health-related<br />

side effects. Low bloodsugar<br />

levels, also called<br />

hypoglycemia, can lead to<br />

coma. The mental health side<br />

effects are more prominent<br />

and more consistent across<br />

the systemic fluoroquinolone<br />

drug class”.<br />

In July, USFDA mandated<br />

a new class-wide labelling<br />

change requiring that mental<br />

health side effects be listed<br />

separately from other central<br />

nervous system side effects<br />

across fluoroquinolone<br />

antibiotics.<br />

Mental health side effects<br />

to be included in the labeling<br />

across all fluoroquinolones<br />

are disturbances in attention,<br />

disorientation, agitation,<br />

nervousness, memory<br />

impairment and delirium.<br />

Additionally, the FDA<br />

required new labelling for all<br />

systemic fluoroquinolones<br />

to explicitly reflect the<br />

potential risk of coma with<br />

hypoglycemia.<br />

LifeCell<br />

introduces DNA<br />

screening test<br />

for newborns<br />

LifeCell International, a stem<br />

cell bank and a mother &<br />

baby diagnostics company,<br />

launched RightStart - an<br />

integrated DNA test for<br />

newborns to detect over 50<br />

medical conditions.<br />

The technology has been<br />

found to drastically reduce<br />

false-positive reporting,<br />

thereby avoiding unnecessary<br />

follow-up tests, LifeCell said.<br />

The current process<br />

of newborn screening for<br />

abnormal metabolic profile<br />

warrant further testing for<br />

confirmation.<br />

RightStart newborn<br />

screening does not require<br />

an additional sample since<br />

Netmeds buys telemedicine portal JustDoc.com<br />

Netmeds.com, India’s leading online<br />

pharmacy, announced that the<br />

company has acquired telemedicine<br />

portal JustDoc.com in a cash and stock<br />

transaction.<br />

Founded in 2015, JustDoc.com is an<br />

online consulting portal that connects<br />

patients with clinicians via a technology<br />

platform. JustDoc has served thousands<br />

of patients throughout India through<br />

their website and app, according to the<br />

company.<br />

Netmeds.com provides prescription<br />

medicine and healthcare products to<br />

more than 3,000,000 patients across<br />

India and serves over 19,000 pin codes.<br />

JustDoc.com offers video medical<br />

consultation in the country by connecting<br />

users to doctors. Netmeds will leverage<br />

the combined strengths of both<br />

companies. JustDoc technology will be<br />

integrated with Netmeds.com.<br />

Netmeds.com’s e-pharma portal<br />

offers prescription and over-the-counter<br />

(OTC) medicine along with other health<br />

products.<br />

8 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


a portion of the sample<br />

collected initially can be used.<br />

Also, no additional costs<br />

would need to be incurred by<br />

the parents.<br />

LifeCell had tied up with<br />

Dr Mary Seeterlin, who has<br />

a decade of experience<br />

in newborn screening<br />

programme at Department<br />

of Public Health in Michigan<br />

and is the co-author of<br />

several guidelines and<br />

publications on the subject,<br />

to serve as a consultant to<br />

the programme.<br />

In India, adoption of<br />

newborn screening has been<br />

weak, largely due to low<br />

awareness and also due to<br />

the lack of reliability of test<br />

results, according to the<br />

company.<br />

iGenetic<br />

launches<br />

TruTest labs<br />

iGenetic Diagnostics, a<br />

pathology labs chain, has<br />

launched TruTest Laboratories<br />

with an aim to provide<br />

advanced diagnostics.<br />

TruTest Laboratories is<br />

operational pan-India, with<br />

centres located in Mumbai,<br />

Delhi, Bengaluru, Hyderabad,<br />

Indore, Nagpur, and Kochi.<br />

The lab network will offer<br />

tests ranging from routine<br />

biochemistry to molecular<br />

pathology.<br />

“There is a huge demand<br />

for accurate diagnostic<br />

solutions, which can provide<br />

faster results and are<br />

affordable for the masses.<br />

The growing threat of various<br />

communicable and noncommunicable<br />

diseases<br />

has made it mandatory for<br />

people to go for regular<br />

health check-ups,” said<br />

Arunima Patel, founder, and<br />

managing director, iGenetic<br />

Diagnostics.<br />

Many diseases are<br />

asymptomatic initially and<br />

show symptoms at later<br />

stages, while many infections<br />

share common or similar<br />

symptoms. Regular testing<br />

has become the need<br />

of the hour for early<br />

diagnosis and treatment, she<br />

added.<br />

Metropolis<br />

plans to enter<br />

capital market<br />

M<br />

etropolis Healthcare<br />

Ltd, one of the leading<br />

diagnostics companies in<br />

India, has filed an offer<br />

document with the SEBI,<br />

proposing an Initial<br />

Public Offering (IPO) of<br />

its equity shares.<br />

The Equity Shares<br />

offered through<br />

the Red Herring<br />

Prospectus are<br />

proposed to be listed<br />

on BSE and NSE.<br />

The company’s IPO<br />

comprises up to 15.3 mln<br />

equity shares, consisting<br />

of an Offer for Sale of up to<br />

Handbook on benefits<br />

of vitamin E launched<br />

Merck Consumer Health India has launched a<br />

handbook that highlights the benefits and<br />

widespread utility of vitamin E. Titled “Vitamin E:<br />

Clinical Applications and Evidences”, the book has<br />

been edited by Dr YK Gupta and Dr AC Anand, leading<br />

health experts.<br />

The book focuses on the manifold uses of vitamin E<br />

as a supplement.<br />

According to Merck, People in India are not entirely<br />

aware of the extensive benefits offered by vitamin E<br />

and the book is a step toward increasing awareness<br />

about the benefits of vitamin E, backed by scientific<br />

data and clinical evidence.<br />

More than 90 percent of India is unaware of<br />

vitamin E applications and advantages. Educational<br />

initiatives like these have become the need of the hour,<br />

the company said. Extensive knowledge about vitamin<br />

E in the book underlines Merck’s efforts towards<br />

keeping Indian medical practitioners abreast of latest<br />

medical knowledge, thus giving way to a healthier<br />

future for the general population, the company said.<br />

5 mln shares by promoter<br />

Dr. Sushil Kanubhai Shah<br />

and up to 10.3 mln equity<br />

shares by investor CA Lotus<br />

Investments. The offer<br />

includes a reservation of<br />

up to 3 lakh equity shares<br />

for subscription by eligible<br />

employees.<br />

The Book Running Lead<br />

Managers (BRLMs) are JM<br />

Financial Limited, Credit<br />

Suisse Securities (India)<br />

Private Limited, Goldman<br />

Sachs (India) Securities<br />

Private Limited, HDFC<br />

Bank Limited and Kotak<br />

Mahindra Capital Company<br />

Limited.<br />

Metropolis conducts<br />

operations through a<br />

laboratory and service<br />

network which covers<br />

173 cities in India. During<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 9


the financial year <strong>2018</strong>, it<br />

conducted approximately<br />

16 million tests from<br />

approximately 7.7 million<br />

patient visits, as per company<br />

data.<br />

MedGenome<br />

launches gene<br />

test for CLL<br />

MedGenome has<br />

introduced the IGHV<br />

(immunoglobulin heavy<br />

chain) gene mutation<br />

testing for chronic<br />

lymphocytic leukemia (CLL)<br />

diagnosis.<br />

Current guidelines for<br />

CLL management involves<br />

a comprehensive molecular<br />

workup that includes some<br />

genetic tests performed on<br />

the patient’s blood or bone<br />

marrow sample. The tests<br />

enable oncologists to assess<br />

the prognosis of the disease<br />

subtype and further manage<br />

the disease by personalized<br />

therapy.<br />

Four of the important<br />

biomarker tests includes<br />

those for somatic<br />

hypermutations (SHM) of the<br />

immunoglobulin heavy chain<br />

variable region genes (IGHV)<br />

and somatic mutations of<br />

genes such as TP53, NOTCH1<br />

and SF3B1.<br />

Based on the SHM value,<br />

the disease is classified<br />

Mutated CLL (M-CLL) and<br />

Unmutated CLL (U-CLL).<br />

The status of SHM has a<br />

clear influence on the median<br />

survival of CLL patients.<br />

Presence of SHM of the IGHV<br />

region is strongly predictive<br />

of a good prognosis, while a<br />

lack of SHM predicts a poorer<br />

prognosis. Patients with an<br />

unmutated IGHV gene<br />

usually have a more<br />

aggressive disease and<br />

shorter overall survival.<br />

Patients with a mutated<br />

IGHV gene usually have a<br />

less aggressive disease, with<br />

longer overall survival, said<br />

the company.<br />

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Cardiologist invests US$60 m<br />

in DEB device firm<br />

An Indian-American<br />

cardiologist and<br />

entrepreneur, Dr Kiran Patel,<br />

has invested $60 million<br />

in a medical company that<br />

develops sirolimus-coated<br />

balloons as an alternative<br />

to stents used in coronary<br />

angioplasty.<br />

Concept Medical Inc, a<br />

Florida-based medical device<br />

company, has approached<br />

USFDA for an Investigational<br />

Device Exemption (IDE) for the<br />

world’s first sirolimus-coated<br />

balloon.<br />

The company can<br />

commence clinical studies<br />

to determine the safety and<br />

efficacy of the device after<br />

obtaining IDE from the US<br />

drug regulatory agency.<br />

According to the company,<br />

the investment by Dr Kiran<br />

Patel will pave way for clinical<br />

studies using the device.<br />

The fund will be utilised<br />

to augment clinical data and<br />

clinical registries to qualify<br />

for re imbursement in the<br />

European markets, where the<br />

company has commercially<br />

launched the product, said<br />

Concept Medical Inc.<br />

MagicTouch-DEB, the<br />

sirolimus -coated balloon with<br />

application in coronary and<br />

peripheral artery disease, is<br />

currently available in many<br />

parts of the world.<br />

Extended applications<br />

of MagicTouch-DEB in renal<br />

transplant, erectile dysfunction<br />

and Arteriovenous Fistula/<br />

Arteriovenous Graft (AVG)<br />

for renal dialysis patients are<br />

under ongoing clinical trials.<br />

The company has initiated<br />

a series of global clinical<br />

programmes for MagicTouch-<br />

DEB including Nanolute,<br />

Eastbourne, Transform-I,<br />

Transform-II. They are also<br />

pursuing regulatory pathways<br />

in Japan and China.<br />

Concept Medical has a<br />

manufacturing subsidiary in<br />

India, Envision Scientific Pvt.<br />

Ltd., where all their products<br />

are made. A portion of the<br />

funds will also be utilized to<br />

bolster the manufacturing<br />

operations. The company’s<br />

global distribution and<br />

marketing network is operated<br />

from offices in India, Singapore,<br />

Netherlands and Brazil. ESPL<br />

also has an India-focused,<br />

marketing and distribution<br />

business.<br />

A Board-certified<br />

cardiologist, Dr. Patel<br />

completed his residency<br />

in Internal Medicine in<br />

New Jersey after obtaining<br />

a medical degree from<br />

Gujarat University in India<br />

and an internship in Africa.<br />

In 1982, he completed his<br />

fellowship in Cardiology from<br />

a Columbia University-affiliated<br />

programme.<br />

Dr. Patel subsequently<br />

entered the managed care<br />

industry and was the chairman<br />

of WellCare of Florida till 2002.<br />

Chan Zuckerberg and Gates<br />

Foundation partner to track<br />

infectious diseases<br />

The Chan Zuckerberg<br />

Biohub (Biohub) and<br />

the Chan Zuckerberg<br />

Initiative (CZI) have<br />

launched IDseq, an open<br />

source cloud-based<br />

analysis platform to detect<br />

and respond to infectious<br />

disease outbreaks around<br />

the world.<br />

The tool works by<br />

rapidly combing through<br />

terabytes of metagenomic<br />

data for pathogens<br />

in a given sample. By<br />

identifying diseasecausing<br />

pathogens,<br />

IDseq can provide an<br />

actionable report of what<br />

is happening on the<br />

ground in labs and clinics<br />

anywhere in the world.<br />

In a recent pilot<br />

project, IDseq has been<br />

employed to identify<br />

the presence of the<br />

mosquito-borne viral<br />

chikungunya disease in<br />

the spinal fluid of patients<br />

at Dhaka Shishu Hospital,<br />

the largest paediatric<br />

hospital in Bangladesh.<br />

Based on this information,<br />

follow-up testing<br />

identified additional<br />

cases of neuroinvasive<br />

chikungunya from the<br />

same time period that<br />

were previously labeled<br />

“mystery cases.”<br />

To enable broader<br />

access to IDseq and<br />

valuable on-the-ground<br />

feedback, the Bill &<br />

Melinda Gates Foundation<br />

announced a new<br />

funding opportunity for<br />

global health workers<br />

via the Bill & Melinda<br />

Gates Foundation Grand<br />

Challenges Explorations<br />

Initiative. Awardees will<br />

receive molecular biology<br />

and bioinformatics<br />

training and free access<br />

and compute on the<br />

IDseq platform supported<br />

by CZI, along with the<br />

necessary equipment<br />

and supplies immediately<br />

needed to begin work in<br />

their own countries.<br />

The Biohub and<br />

CZI plan to make IDseq<br />

available within the<br />

next year to partner<br />

organizations, and then<br />

more broadly afterward.<br />

The software itself is<br />

open-source and freely<br />

available.<br />

The CZ Biohub is<br />

a non-profit medical<br />

research organization<br />

collaborating with the<br />

University of California,<br />

Berkeley, Stanford<br />

University and the<br />

University of California,<br />

San Francisco.<br />

The Chan Zuckerberg<br />

Initiative, founded by Mark<br />

Zuckerberg and Priscilla<br />

Chan is a philanthropic<br />

organization.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 11


egulatory<br />

MCI IN DIRE STRAITS<br />

The fate of the medical council hangs in balance as govt enforces a governing<br />

body through an ordinance<br />

DR SUMIT GHOSHAL<br />

Nearly two months after the Union<br />

Government promulgated an<br />

ordinance replacing the existing<br />

Executive Committee of the Medical<br />

Council of India (MCI) with a nominated<br />

board of governors, nobody is sure what<br />

is going to happen next. The Sept 26<br />

notification, titled Indian Medical Council<br />

(Amendment) Ordinance <strong>2018</strong>, has<br />

effectively placed the MCI in suspended<br />

animation and blocked the process of<br />

election or nomination of its executive<br />

members until further notice.<br />

“Whereas Parliament is not in<br />

session and the President is satisfied<br />

that circumstances exist which render<br />

it necessary for him to take immediate<br />

action…” the text of the ordinance says<br />

by way of introduction. In addition, the<br />

ordinance mentions that the Board<br />

of Governors would be assisted by a<br />

Secretary General who may be deputed<br />

from among the government’s own<br />

cadres or appointed from outside on a<br />

one-year contract.<br />

While the ordinance does not spell<br />

out the ‘circumstances’ which impelled<br />

President Ramnath Kovind to take<br />

this decision, independent reports in<br />

the media suggest that an Oversight<br />

Committee appointed by the Supreme<br />

Court to look after the affairs of the MCI<br />

was being ignored by those in charge.<br />

The Supreme Court committee had been<br />

formed after repeated allegations of<br />

corruption against some members of the<br />

MCI Executive Committee.<br />

In the past few years, the MCI had<br />

come under stringent criticism from<br />

IN THE PAST FEW YEARS,<br />

THE MCI HAS COME UNDER<br />

STRINGENT CRITICISM<br />

FROM THE SUPREME<br />

COURT AS WELL AS THE<br />

PARLIAMENTARY STANDING<br />

COMMITTEE.<br />

the Supreme Court as well as the<br />

Parliamentary Standing Committee for<br />

Health and Family Welfare. In its 92nd<br />

report, the Standing Committee wrote<br />

in September 2015: “The situation<br />

has gone far beyond the point where<br />

incremental tweaking of the existing<br />

system or a piecemeal approach can<br />

give the contemplated dividends. That<br />

is why the committee is convinced that<br />

the MCI cannot be remedied according<br />

to the existing provisions of the Indian<br />

Medical Council Act, 1956 which is<br />

certainly outdated.”<br />

The latest ordinance has to be<br />

ratified through suitable legislation<br />

within six months from the date of<br />

promulgation, or by the end of March<br />

2019. Meanwhile it has evoked strong<br />

criticism from the Indian Medical<br />

Association (IMA) and other professional<br />

bodies.<br />

“My main point of opposition<br />

is that the Board of Governors is a<br />

nominated body which has replaced<br />

a democratically elected body; that<br />

is, the MCI Executive Committee,” says<br />

Dr K K Agrawal, IMA’s immediate past<br />

president and the president-elect of the<br />

Confederation of Medical Associations<br />

of Asia and Oceania as well as the<br />

president of the Heart Care Foundation<br />

of India. “Hence, by its very nature, the<br />

government action is undemocratic.”<br />

Besides, Dr Agrawal adds, the Board<br />

comprises entirely of doctors belonging<br />

to the government cadres, while private<br />

doctors are nowhere in the picture.<br />

“Who will deal with the problems of the<br />

private doctors?” he asks rhetorically.<br />

Also, there are no representatives from<br />

12 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


any of the universities, nor anybody to<br />

represent state-level issues.<br />

A larger issue which could render<br />

the latest ordinance unnecessary and<br />

obsolete is that of the National Medical<br />

Commission (NMC). The draft NMC bill<br />

has been pending since 2016, after<br />

undergoing several modifications during<br />

these two years, and is likely to come up<br />

for discussion in the winter session of<br />

Parliament which is scheduled to begin<br />

in late November or early December.<br />

It will most probably be the last<br />

opportunity for a discussion on the Bill in<br />

the current Lok Sabha, whose term ends<br />

in June 2019.<br />

Under the NMC Bill, which was<br />

cleared by the Union Cabinet as far back<br />

as August-September 2016, the Medical<br />

Council will be replaced by the NMC.<br />

The new body would comprise four<br />

subordinate bodies: the Undergraduate<br />

Medical Education Board, Postgraduate<br />

Medical Education Board, the Medical<br />

College Assessment and Ratings Board<br />

and the Board of Medical Registration.<br />

Thus the NMC would take over all the<br />

important functions of the MCI.<br />

Senior medical teachers also point<br />

out that the NMC Bill could transform<br />

the state of medical education in the<br />

country, perhaps for the better. One of its<br />

proposals is to introduce a common final<br />

MBBS examination for all the medical<br />

colleges in the entire country. This would<br />

surely be an unprecedented innovation<br />

for medical education. The problem of<br />

varying standards of medical training<br />

imparted in various parts of the country<br />

would thus become a thing of the past.<br />

The IMA has been conducting a<br />

fierce campaign against the NMC Bill<br />

ever since it was made public two years<br />

ago on the grounds that the new body<br />

would almost entirely be composed of<br />

bureaucrats and government doctors,<br />

with no elected representatives.<br />

In addition, the IMA website<br />

describes the NMC Bill as anti-poor<br />

and anti-people, while alleging that “all<br />

the state health universities have been<br />

marginalized into an advisory role.” Also,<br />

the Parliamentary Standing Committee,<br />

to which the Bill had been sent for<br />

consideration, had recommended as<br />

many as 24 amendments. Of these, the<br />

government has accepted just one in full,<br />

and three in part, IMA sources said.<br />

My main point of opposition is that the Board<br />

of Governors is a nominated body which<br />

has replaced a democratically elected body;<br />

that is, the MCI Executive Committee.<br />

Dr K K Agrawal,<br />

IMA’s immediate past president<br />

Sabotaging<br />

democratic<br />

process: IMA<br />

The Indian Medical Association<br />

(IMA) said in a statement that the<br />

“supersession” of the MCI is only a<br />

smokescreen and a ploy to prepare<br />

the ground for the NMC and sabotage<br />

the democratic process of the Council.<br />

The Board of Governors (BOG)<br />

should conform to the basic tenets<br />

of the IMC Act and refrain from<br />

tinkering with its fundamental<br />

structure, the IMA said. The Board<br />

should refrain from taking major<br />

policy decisions or passing any<br />

amendment changing the character<br />

of the IMC Act. The election process<br />

of the MCI should be allowed to<br />

continue, it added.<br />

Crosspathy, registration of nonmedical<br />

persons, bridge courses<br />

and the mixing of syllabi are core<br />

concerns of the outgoing team. 184<br />

private medical colleges are awaiting<br />

recognition due to the strict norms<br />

of the outgoing MCI team, it said. By<br />

removing the democratically elected<br />

MCI, checks and balances have been<br />

removed and the chances of arbitrary<br />

action have increased. A generation<br />

of substandard doctors will be the<br />

legacy of this action, according to the<br />

statement.<br />

Maintaining that the composition<br />

of the Board itself was unacceptable,<br />

the team pointed out that there is<br />

no representation to women and<br />

registered medical practitioners.<br />

Directors of major institutions would<br />

scarcely find time to administer more<br />

than 450 medical colleges and their<br />

undergraduate and postgraduate<br />

courses, it alleged.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 13


drug resistance<br />

TACKLING<br />

EMERGING<br />

Stopping irrational antibiotic use in all the four stages<br />

of treatment cycle is the need of the hour<br />

14 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


DR RAJANI KANTH VANGALA<br />

In India, the largest therapeutic<br />

group — which accounts for 15.7% of<br />

the drugs market — are antibiotics.<br />

This suggests not only that antibiotics<br />

are now available to a larger segment<br />

of needed people, but also irrational<br />

use, leading to antibiotic resistance<br />

in bugs. India and the world at large<br />

are on the verge of facing their worst<br />

healthcare crisis due to fast-emerging<br />

antibiotic-resistant pathogens. This<br />

multifaceted problem arises due to<br />

several aspects, such as non-prescription<br />

self-medication, unwarranted dosages<br />

to patients by clinics, and the lack of<br />

knowledge translation to the public.<br />

According to the World Health<br />

Organization (WHO) definition,<br />

medicines are used ‘rationally’ (i.e.,<br />

responsibly, appropriately, correctly and<br />

properly) when patients receive the<br />

medicines from responsible clinicians in<br />

appropriate doses for correct indications<br />

and meet the individual need for an<br />

adequate period of time with proper<br />

knowledge. However, these aspects<br />

are seldom practiced, leading to high<br />

expenditure on buying medicines and<br />

the ever-growing problem of resistant<br />

bacteria. The development and<br />

implementation of certain guidelines<br />

by regulatory authorities may, to some<br />

extent, help in curbing this problem.<br />

Due to patients’ demand for instant<br />

gratification and other market issues,<br />

clinicians are forced to prescribe more<br />

than the required amount of antibiotics.<br />

It is important to note that bacteria<br />

can develop resistance in different<br />

ways, like de novo gene mutations<br />

and the import of resistance-related<br />

genetic information from other bacteria<br />

due to selective pressure on them by<br />

an overdose of antibiotics. With less<br />

antibiotic use, antibiotic effectiveness<br />

is maintained for a longer period and<br />

the chances of developing resistant<br />

bacteria are reduced.<br />

EML for better outcomes<br />

The inappropriate use of antibiotics<br />

can start at any of the four stages of<br />

treatment cycle, namely diagnosis,<br />

prescribing, dispensing and patient<br />

adherence. In the first stage, a wrong<br />

diagnosis can lead to the use of drugs<br />

which will be ineffective. It is very<br />

important to practice proper diagnosis<br />

and look at the possibility of using nondrug<br />

based therapies that may relieve<br />

the patient before prescribing drugs.<br />

Every country has an Essential<br />

Medicines List (EML) based on the<br />

needs of the populations. The concept<br />

of the EML is based on the notion that<br />

limited use of well-known and cost-<br />

PATHOGENS<br />

ANTIBIOTICS<br />

FOUR STAGES OF TREATMENT CYCLE<br />

The inappropriate use of antibiotics<br />

can start at any of the four stages<br />

DIAGNOSIS PRESCRIPTION DISPENSING PATIENT<br />

ADHERENCE<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 15


Three million surgeries and cancer<br />

treatments may turn life-threatening<br />

Public Health England’s (PHE’s)<br />

English Surveillance Programme for<br />

Antimicrobial Utilisation and Resistance<br />

(ESPAUR) report published in October<br />

highlights how more than 3 million<br />

common procedures such as cesarean<br />

sections and hip replacements could<br />

become life-threatening without<br />

antibiotics.<br />

Without antibiotics, infections related<br />

to surgery could double, putting people at<br />

risk of dangerous complications. Cancer<br />

patients are also much more vulnerable<br />

if antibiotics don’t work; both cancer and<br />

the treatment (chemotherapy) reduce<br />

the ability of the immune system to fight<br />

infections. Antibiotics are critical to prevent<br />

and treat infections in these patients.<br />

The threat of antibiotic resistance<br />

continues to grow. Bloodstream infections<br />

have increased, and the report shows that<br />

antibiotic-resistant bloodstream infections<br />

rose by an estimated 35% between 2013<br />

and 2017.<br />

Despite the risks of antibiotic<br />

resistance, research shows that 38%<br />

of people still expect an antibiotic<br />

from a doctor’s surgery, NHS walk-in<br />

centre or ‘GP out-of-hours’ service when<br />

they visited with a cough, flu or a throat,<br />

ear, sinus or chest infection in 2017.<br />

The ‘Keep Antibiotics Working’<br />

campaign educates the public about the<br />

risks of antibiotic resistance, urging people<br />

to always take healthcare professionals’<br />

advice as to when they need antibiotics.<br />

The campaign also provides effective<br />

self-care advice to help individuals and<br />

their families to feel better if they are not<br />

prescribed antibiotics.<br />

The Ipsos MORI Capibus Survey,<br />

‘Attitudes towards antibiotics, 2017’ was<br />

conducted between 24 January to 5<br />

February 2017 with a representative<br />

sample size of 1,691 adults (aged 15+) in<br />

England only.<br />

effective medicines can result in better<br />

healthcare outcomes, enhanced longterm<br />

supply and sustainable access to<br />

medicines.<br />

Prescribing is a complex process for<br />

doctors and begins with establishing<br />

the goal(s) of the therapy. Meeting the<br />

patient expectation, arriving at benefitrisk<br />

balance, availability and cost are the<br />

important considerations for clinicians.<br />

This daunting process of prescribing<br />

needs openness in engaging with the<br />

patient, which is important as it is the<br />

patient who is the ultimate recipient of<br />

any benefits of taking the medication.<br />

For most patients, transitioning into<br />

a role of someone who has to take<br />

medicines is often difficult. This is more<br />

so in cases where the benefits of the<br />

medication are not immediate and the<br />

mere presentation of the diagnosis<br />

may not be a motivator. There is an<br />

urgent need to understand this and<br />

develop better methodologies in patient<br />

adherence and reduce the irrational use<br />

of antibiotics.<br />

Threat to progress<br />

In the event of no proper diagnosis,<br />

incorrect or general antibiotic<br />

prescription can lead to complex and<br />

unwanted clinical outcomes. In such<br />

cases, it is important to evaluate the<br />

patient’s co-existing medical, genetic<br />

and environmental conditions. Beyond<br />

the prescription, dispensing and patient<br />

adherence are even more difficult to<br />

follow and improve. Especially in rural<br />

areas, the pharmacists almost become<br />

non-prescribing doctors in giving<br />

medicines and advice, which may not<br />

be effective. This aspect also leads<br />

to patient non-adherence in taking<br />

medications. Essential cross-checks<br />

and patient knowledge translation,<br />

empowering them for better adherence<br />

to therapy protocols, are needed.<br />

Antibiotic development is now<br />

considered to be a global health<br />

emergency, with the average time<br />

needed to receive regulatory approvals<br />

16 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


eing 7.2 years, with a very low clinical<br />

success rate of 16%. There is a need<br />

for a national-level plan to combat<br />

antibiotic resistance by driving more<br />

inter-sectoral partnerships among<br />

scientists and medical, epidemiological<br />

and diagnostic personnel. Ever since<br />

penicillin ushered in the modern era<br />

of antibiotic development, they have<br />

become the cornerstone of human<br />

lives by changing the way we live. In<br />

this post-antibiotic era, evaluation of<br />

epidemiological aspects and tailoring<br />

the use of antibiotics by proper use of<br />

scientific methods can lower the threat<br />

THE EMERGENCE OF<br />

NEW PATHOGENS<br />

WITH ANTIMICROBIAL<br />

RESISTANCE CAN MAKE<br />

HUMANITY GO BACK TO<br />

THE PRE-ANTIBIOTIC ERA.<br />

of ever-growing, drug-resistant bacteria.<br />

The impact of the irrational use of<br />

antibiotics can be more far-reaching<br />

than perceived, as suggested by the<br />

Nobel Laureate Joshua Lederberg: “The<br />

future of humanity and microbes will<br />

evolve as episodes...of our wits versus<br />

their genes”. The emergence of new<br />

pathogens with antimicrobial resistance<br />

can not only be seen as a threat to the<br />

progress made in healthcare, but also<br />

as something that can make humanity<br />

go back to the pre-antibiotic era where<br />

the masses suffered and died due to<br />

untreatable infections. It is now in our<br />

hands to embrace the most logical step<br />

of stopping irrational antibiotic use at<br />

each and every step of therapy.<br />

PIL questions unchecked<br />

antibiotics sale<br />

public interest litigation (PIL) has<br />

A been registered in Bombay High<br />

Court demanding action to address<br />

unchecked sales of high potency<br />

antibiotics without prescriptions. It was<br />

filed by a city-based lawyer against<br />

the Union of India, Government of<br />

Maharashtra, Central Drugs Standard<br />

Control and the Drug Controller.<br />

The PIL outlined mainly four<br />

aspects, including the unchecked sale<br />

and consumption of antibiotics as an<br />

OTC product, drug resistance and the<br />

impact on disease-control measures,<br />

increased cost of healthcare, insurance<br />

and research, and the unchecked<br />

sale and access to H and H1 category<br />

antibiotics.<br />

The petition, filed by Bharat Kothari,<br />

a Mumbai-based lawyer, followed<br />

findings of a survey conducted across<br />

500 pharmacies in Maharashtra.<br />

In the survey, Bharat Sarge, an<br />

activist, discovered that antibiotics<br />

belonging to H and H1 categories were<br />

freely available across pharmacies.<br />

Listing the critical issues that surfaced<br />

due to unchecked consumption<br />

of high-potency antibiotics, such<br />

as serious drug resistance among<br />

infectious diseases and unauthorised<br />

sale, the lawyer felt there was great<br />

merit in a PIL.<br />

According to Kothari, over 118<br />

different antibiotic formulations are sold<br />

in India. Out of such a large number of<br />

antibiotic formulations — as against just<br />

five in the United Kingdom and the US<br />

— 64% are apparently not approved by<br />

the national drug regulator, the Central<br />

Drugs Standard Control Organisation.<br />

Presently, India is the largest consumer<br />

of antibiotics in the world, he added.<br />

“Temporary suspension of licenses<br />

of local pharmacies have failed to<br />

control rising concerns and medicines<br />

continue to be dispensed irresponsibly<br />

by shop owners. It’s about time there<br />

is a system in place to control these<br />

irregularities effectively, and severe<br />

punishment should be levied against<br />

such defaulters,” says Bharat Serge<br />

of Venkateshwar Seva Sanstha, which<br />

conducted the survey.<br />

The petition has outlined citizens’<br />

rights to health, stated to have been<br />

compromised due to the indiscriminate<br />

OTC sale and unchecked use of<br />

prescription medication. It draws<br />

attention to the duty of the state to<br />

assess and monitor any dependency<br />

or addiction to antibiotics and other<br />

high-potency drugs and ensure that<br />

there is no damage to the consumers’<br />

health by uncontrolled, unchecked selfmedication.<br />

Since it has been a strategic goal<br />

of WHO and many countries to limit<br />

antimicrobial resistance, most countries<br />

are taking brisk measures to prevent<br />

production and sale of illegal and<br />

unapproved medication.<br />

The author is medical<br />

scientist and former<br />

director of SGRF,<br />

Bangalore<br />

18 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


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column<br />

the catalyst<br />

Dichotomy of price<br />

control<br />

Unless fortified by quality standards, price control on<br />

medical products could prove counterproductive<br />

MURALIDHARAN NAIR<br />

India has followed a policy of price control<br />

of pharmaceutical products for long,<br />

and in recent times it has extended the<br />

ambit to include certain devices as well.<br />

Now, there is an imminent possibility of it<br />

expanding further to include more medical<br />

products and even medical services.<br />

The policy of price control on healthcare<br />

products and services has been a subject<br />

of debate for long. It has intensified in<br />

the recent past owing to the twin factors<br />

of India’s high dependence on private<br />

sector health care facilities (more than 60<br />

percent of the surrendered care is through<br />

the private sector) and the increasing<br />

unaffordability of the same.<br />

The proponents of price control have<br />

often to contend with stiff opposition<br />

from market players who argue that it<br />

impairs the industry’s ability to invest<br />

sufficiently in innovation, and as long as<br />

there are competitive forces at play in<br />

the form of multiple providers/vendors,<br />

prices will find a fair equilibrium. I have<br />

never been convinced by this argument<br />

of the opponents of price control, based<br />

on my observations of the realities in the<br />

market for more than two decades now.<br />

A careful analysis of the market prices will<br />

reveal that the burden of an inefficient<br />

research and development process and<br />

an aggressive commercialization agenda<br />

have contributed to market prices that are<br />

not fair to the consumer. This is further<br />

compounded by the fact that consumer<br />

choice is highly influenced by care providers,<br />

and as such, it is not a free market. Let me<br />

try and elucidate this through the events<br />

leading to, and following, the imposition of<br />

price control on cardiac stents more than<br />

a year back. The cardiac stent market in<br />

India is characterized by a mix of Indian<br />

(~15 players), MNC (5 players) and some<br />

emerging Chinese players. There are two<br />

types of stents prevalent in the market, viz.<br />

Drug Eluting (DES) and Bare Metal, with the<br />

DES having a share of ~ 90%.<br />

It is evident from the data that any<br />

claim of the MNC players seeking to<br />

justify the price to patient / MRP as a<br />

legitimate cost for sustaining research and<br />

innovation is untenable since the post<br />

manufacturer “value addition” far exceeds<br />

the manufacturer’s (innovator’s) margins.<br />

It is essentially the cost of aggressive<br />

commercialization that the poor customer<br />

is paying in the name of innovation<br />

and quality, despite the market having<br />

reasonable competitive intensity. What<br />

happened subsequent to the price control,<br />

which essentially equalized the MRPs of<br />

Indian and MNC innovator players, is a great<br />

example of how little control the customer<br />

exercises in making the choice of healthcare<br />

products. Despite the price equalization,<br />

which should have effectively given a fillip to<br />

20 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


PRICE CONTROL SCENARIO<br />

1,30,000+<br />

2016<br />

PRE-PRICE<br />

CONTROL<br />

2017<br />

POST-PRICE<br />

CONTROL<br />

2016<br />

PRE-PRICE<br />

CONTROL<br />

2017<br />

POST-PRICE<br />

CONTROL<br />

PRICE (INR)<br />

1,00,000+<br />

57% 43% 61%<br />

39%<br />

30%<br />

70%<br />

45% 55%<br />

2016 2017<br />

29,284<br />

MARKET SHARE<br />

(ENTIRE COUNTRY)<br />

MARKET SHARE<br />

(METRO CITIES)<br />

INDIAN MNC<br />

Prices inclusive of GST<br />

Marketshare by volume<br />

SOURCE: NPPA, EY ANALYSIS<br />

MNC<br />

INDIAN<br />

TRANSFER PRICE/MANUFACTURING COST<br />

15,000-17,500 2,500-5,000<br />

PATIENT CHARGING PRICE<br />

1,20,000 60,000-70,000<br />

MRP (PRE-PRICE CONTROL)<br />

1,30,000+ 1,00,000+<br />

DESPITE THE PRICE<br />

EQUALIZATION, WHICH<br />

SHOULD HAVE EFFECTIVELY<br />

GIVEN A FILLIP TO THE MNC<br />

SHARE WITH ITS PERCEIVED<br />

SUPERIORITY OF AN<br />

ORIGINATOR, MNC’S<br />

MARKET SHARE FELL.<br />

the MNC share with its perceived superiority<br />

of an originator, MNC’s market share fell.<br />

Even if the domestic players could offer little<br />

price advantage post price control, it was<br />

not material enough to affect a decision<br />

change by a consumer in the context of the<br />

overall cost of angioplasty and criticality<br />

of the product in the scheme of things.<br />

Importantly, despite the massive reduction<br />

in the price of stent, which was a critical<br />

cost driver for angioplasty, the procedure<br />

cost did not come down materially (less<br />

than 15 percent).<br />

No less than the Prime Minister himself<br />

has spoken of stent price rationalization<br />

as one of the major successes of his<br />

government. But in reality, the intended<br />

beneficiaries are not really better off.<br />

This exposes the complexity involved<br />

in matters of healthcare delivery. What<br />

may offer great optics from a political<br />

perspective is not necessarily a measure<br />

of the true effectiveness of the policy.<br />

It is imperative that the policy makers<br />

understand the complexity around the<br />

issues before formulating a policy, to<br />

ensure that the intended benefit reaches<br />

the last mile. This is another important<br />

lesson for us to learn: Price control is an<br />

important tool and is also an attractive<br />

proposition as a populist measure, but<br />

price control alone, without accompanying<br />

measures for fortifying quality standards,<br />

may be counterproductive in the long<br />

run. More on this in the subsequent<br />

columns.<br />

The author has long-standing association with<br />

EY India but the views are strictly personal.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 21


cover story<br />

IMMUNO<br />

TO<br />

LUNG CANCER<br />

Immunotherapy comes as a silver<br />

lining for the sufferers of a malignancy<br />

which has the highest incidence and<br />

the bleakest prognosis<br />

22 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


LUNG CARCINOMA:<br />

THE COMMONEST CANCER<br />

WORLD OVER<br />

Lung cancer is now the most common cancer<br />

worldwide, with 2·1 million people diagnosed<br />

in <strong>2018</strong> and 1·8 million deaths, influenced<br />

strongly by the tobacco epidemic.<br />

WORLD<br />

INDIA<br />

11.6%<br />

incidence of<br />

lung cancer<br />

among<br />

all new<br />

cancer cases<br />

18.4%<br />

lung cancer<br />

accounts for all<br />

cancer related incidence<br />

6.3%<br />

of lung<br />

deaths cancer among<br />

all new<br />

cancer cases<br />

9.1%<br />

PATH<br />

INCIDENCE OF NSCLC AS<br />

COMPARED TO SCLC<br />

Adenocarcinoma accounts for nearly 40% of lung<br />

cancers and is the most common form of cancer<br />

among smokers<br />

5%+<br />

Large Cell<br />

6.7%<br />

1.Carcinoma<br />

1.0%+<br />

15.7%<br />

lung cancer<br />

accounts for all<br />

cancer related<br />

deaths<br />

Squamous Cell Carcinoma<br />

S HARACHAND<br />

Immunotherapy stepped onto the hall of fame by winning<br />

the <strong>2018</strong> Nobel prize for medicine. Through their landmark<br />

discovery, Professor James P Allison from the US and<br />

Professor Tasuku Honjo from Japan have outlined how<br />

immune checkpoints can be effectively targeted to deal with<br />

the toughest of cancers.<br />

Their seminal work on cytotoxic T-lymphocyte associated<br />

protein 4 (CTLA-4) and programmed cell death receptor-1 (PD-<br />

1) mechanism led to a new class of therapeutics called immune<br />

checkpoint inhibitors. These drugs have brought remarkable<br />

outcomes by radically changing the treatment approach to<br />

38.9%<br />

Adenocarcinoma<br />

11.6%+<br />

Other or unspecified 0.4%<br />

Small Cell Carcinoma<br />

24.0%<br />

0.3%+<br />

Non-smoker<br />

Smoker<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 23


cancer and made immunotherapy one of the<br />

hottest areas of cancer research.<br />

“If you really want to do something<br />

paradigm shifting, then you really have to probe<br />

basic mechanisms,” says Dr Vishva M Dixit,<br />

Vice President and Staff Scientist, Physiological<br />

Chemistry at Genentech, San Francisco, CA,<br />

commenting on the Nobel-winning work in<br />

basic science.<br />

Unlike conventional therapeutic modalities<br />

that directly target cancer cells, these drugs<br />

block the checkpoints of the host immune<br />

systems to unleash an outright attack on cancer<br />

cells.<br />

Since the approval of ipilimumab, a CTLA-4<br />

blocker, for melanoma by the USFDA in 2011,<br />

checkpoint inhibitors have fundamentally<br />

changed the outcome for certain subsets of<br />

patients with advanced forms of cancers, which<br />

were hitherto considered largely untreatable.<br />

This paved the way for US regulatory approval<br />

of checkpoint inhibitors with a broader range -<br />

PD-1 and PD-L1 - to treat over a dozen cancers.<br />

Of the two treatment strategies, checkpoint<br />

therapy against PD-1 has proven to be more<br />

effective for the carcinoma of the lung. As<br />

a group of malignancies, lung cancer offers<br />

the lowest survival rates. Lung cancer has an<br />

incidence rate of 11.6% - the highest among all<br />

cancers — and a mortality rate of 18.4%, the<br />

highest of all cancer-specific deaths, according<br />

to the Globocan <strong>2018</strong> report.<br />

Immune checkpoint inhibitors that block<br />

the PD-1/PD-L1 pathway, such as nivolumab,<br />

pembrolizumab and atezolizumab, have been<br />

rapidly adopted into clinical practice as a<br />

We are continuing<br />

to explore<br />

the potential<br />

of nivolumab<br />

through our broad<br />

development<br />

programme<br />

in thoracic<br />

malignancies,<br />

including early<br />

and late-stage<br />

NSCLC, SCLC and<br />

malignant pleural<br />

mesothelioma.<br />

Sabine Maier,<br />

M D, Development Lead,<br />

Thoracic Cancers,<br />

Bristol-Myers Squibb.<br />

standard treatment option for patients with<br />

advanced non-small-cell lung cancer (NSCLC).<br />

Exploring PD-1/PD-L1 pathways<br />

Nivolumab, a fully human monoclonal<br />

immunoglobulin G4 antibody to PD-1 intended<br />

for the treatment of squamous cell lung cancer,<br />

won US FDA approval in March 2015. Marketed<br />

by Bristol-Myers Squibb under the brand name<br />

Opdivo, its efficacy to treat squamous NSCLC<br />

was established in a randomized trial of 272<br />

participants, 135 of whom received nivolumab<br />

and 137 received docetaxel.<br />

In October 2015, FDA expanded<br />

nivolumab’s approval to advanced (metastatic)<br />

nonsquamous non-small cell lung cancer<br />

patients whose disease progressed during or<br />

after platinum-based chemotherapy.<br />

“We are continuing to explore the potential<br />

of nivolumab through our broad development<br />

programme in thoracic malignancies, including<br />

early and late-stage NSCLC, SCLC and malignant<br />

pleural mesothelioma,” says Sabine Maier, M D,<br />

Development Lead, Thoracic Cancers at Bristol-<br />

Myers Squibb.<br />

Pembrolizumab is an alternative, highly<br />

selective IgG4-kappa humanized monoclonal<br />

antibody against PD-1 receptor.<br />

Pembrolizumab got approval from the US<br />

FDA on October 2015 for the treatment of<br />

metastatic NSCLC in patients whose tumours<br />

express PD-L1 and who have failed treatment<br />

with other chemotherapeutic agents.<br />

Merck sells the drug under the brand name<br />

Keytruda.<br />

Merck is evaluating pembrolizumab in<br />

LUNG CANCER<br />

THE WORLDWIDE SCENARIO<br />

Age standardized (World) incidence<br />

rates, lung, females, all ages<br />

≥ 18.0<br />

10.0–18.0<br />

6.3–10.0<br />

3.9–6.3<br />

1.9–3.9<br />

< 1.9<br />

24 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


oth neoadjuvant and adjuvant settings; for example, in<br />

Keynote-091 (adjuvant) and Keynote-671 (neoadjuvant and<br />

adjuvant), which are currently recruiting patients, said a Merck<br />

spokesperson.<br />

Cemiplimab (Libtayo) is another PD-1 blocker, developed by<br />

Regeneron and Sanofi. The drug is being investigated presently<br />

for NSCLC as a monotherapy and in combination in first-line<br />

patients in different trial settings.<br />

Atezolizumab, marketed as Tecentriq by F Hoffmann-La<br />

Roche/Genentech, works through the PD-L1 pathway. The drug<br />

is approved in Europe and the USA for second-line treatment<br />

of NSCLC following platinum-based chemotherapy.<br />

Currently, Roche has eight Phase III lung cancer studies<br />

underway, evaluating atezolizumab alone or in combination<br />

with other medicines.<br />

Other PD-L1 inhibitors in late-stage development for NSCLC<br />

include durvalumab (Imfinzi, AstraZeneca) and avelumab<br />

(Bavencio, EMD Serono and Pfizer).<br />

LUNG TOPS CHART<br />

IN INDIA<br />

Lung cancer remains the<br />

leading type of malignancy in<br />

men in India, according to a new<br />

study conducted on data from<br />

28 population-based cancer<br />

registries (PBCR) across the<br />

country.<br />

The highest incidence of<br />

cancer was seen in the East and<br />

the Northeast regions and the<br />

lowest was in rural areas for all<br />

age groups in both men and<br />

women.<br />

The lung topped as the<br />

leading site for all the registries.<br />

In the Bengaluru registry,<br />

the leading cancer sites<br />

were the stomach and the<br />

lung. In Bhopal, Mumbai and<br />

Aurangabad, they were the lung<br />

and the mouth and in Kolkata<br />

and Tripura, it was the lung.<br />

Prepared by researchers<br />

from the Indian Council of<br />

Medical Research and the Delhibased<br />

Dharamshila Narayana<br />

Superspecialty Hospital, the<br />

paper compared data for all<br />

registries and reviewed the<br />

change in cancer pattern among<br />

different age groups from 2005<br />

to 2014.<br />

Checkpoint concerns<br />

Checkpoint therapy has really worked wonders. It brought<br />

SOURCE: GLOBOCAN <strong>2018</strong><br />

54.1<br />

24.0<br />

52.0<br />

24.5<br />

49.3<br />

11.9<br />

ASR (World) per<br />

CARCINOMA OF LUNG<br />

MALE FEMALE RATIO<br />

Age standardized (World)<br />

incidence rates, lung, by sex<br />

Male<br />

Female<br />

Micronesia<br />

Polynesia<br />

Central and<br />

Eastern<br />

Europe<br />

Eastern<br />

Asia<br />

Western<br />

Europe<br />

Southern<br />

Europe<br />

North<br />

America<br />

Western<br />

Asia<br />

Northern<br />

Europe<br />

World<br />

Australia/<br />

New<br />

Zealand<br />

South-<br />

Eastern<br />

Asia<br />

Southern<br />

Africa<br />

Caribbean<br />

Melanesia<br />

Northern<br />

Africa<br />

South<br />

America<br />

South-<br />

Central Asia<br />

Central<br />

America<br />

Middle<br />

Africa<br />

Eastern<br />

Africa<br />

Western<br />

Africa<br />

47.2<br />

21.9<br />

43.3<br />

25.7<br />

43.1<br />

15.7<br />

39.1<br />

30.7<br />

38.8<br />

7.8<br />

34.0<br />

26.9<br />

31.5<br />

14.6<br />

28.4<br />

24.0<br />

26.3<br />

9.6<br />

100,000<br />

26.0<br />

8.9<br />

23.5<br />

14.2<br />

17.1<br />

8.9<br />

16.9<br />

3.4<br />

16.8<br />

10.2<br />

9.4<br />

3.4<br />

7.2<br />

4.5<br />

3.8<br />

2.3<br />

3.4<br />

2.2<br />

2.4<br />

1.2<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 25


IMMUNE CHECKPOINT<br />

BLOCKADE: THE NEW RAGE<br />

Drugs that inhibit PD-1/PD-L1 pathway have been<br />

rapidly getting adopted into clinical practice<br />

NSCLC tumours overexpress the<br />

immunosuppressive checkpoint<br />

protein programmed death ligand 1<br />

(PD-L1) to evade detection and attack<br />

by immune cells. Inhibiting the PD-1/<br />

PD-L1 axis with monoclonal antibodies<br />

has significantly changed the treatment<br />

approach in lung cancer during the last<br />

5 years.<br />

Immune checkpoint inhibitors that<br />

block the PD-1/PD-L1 pathway, such<br />

as nivolumab, pembrolizumab and<br />

atezolizumab, have become a standard<br />

treatment option for patients with<br />

advanced non-small-cell lung cancer<br />

(NSCLC).<br />

NIVOLUMAB<br />

Nivolumab is a fully human monoclonal<br />

immunoglobulin G4 antibody targetting<br />

PD-1. The treatment won US FDA<br />

approval in March 2015 for the treatment<br />

of squamous cell lung cancer. Marketed<br />

by Bristol-Myers Squibb under the<br />

brand name Opdivo, its efficacy to treat<br />

squamous NSCLC was established in a<br />

randomized trial of 272<br />

participants of whom<br />

135 received nivolumab<br />

and 137 received<br />

docetaxel.<br />

In October 2015,<br />

FDA expanded<br />

nivolumab's approval to<br />

advanced (metastatic)<br />

nonsquamous nonsmall<br />

cell lung cancer in<br />

cases where the disease<br />

progressed during or<br />

after platinum-based chemotherapy.<br />

Patients who received nivolumab<br />

lived longer than those who received<br />

docetaxel in the study. However, it was<br />

found that the level of PD-L1 expression<br />

in NSCLC tumours may help identify<br />

the patients who are more likely to<br />

live longer with the help of nivolumab<br />

treatment. Therefore, the FDA also<br />

approved the PD-L1 IHC 28-8 pharmDx<br />

test to detect PD-L1 protein expression<br />

levels and help physicians determine<br />

which patients may benefit most from<br />

treatment with nivolumab.<br />

Currently, several studies are<br />

underway to determine whether<br />

nivolumab, in combination with other<br />

therapies, is effective in patients with<br />

advanced NSCLC. Among them are<br />

Biomarker-Targeted Second-Line Therapy<br />

in Treating Patients with Recurrent Stage<br />

IV Squamous Cell Lung Cancer (The<br />

Lung-MAP Screening Trial) and Alchemist<br />

treatment trial. Studies using nivolumab<br />

in NSCLC patients are ongoing in India as<br />

well, according to ClinicalTrials.gov<br />

“We are continuing to<br />

explore the potential of<br />

Opdivo through our broad<br />

development programme in<br />

thoracic malignancies, including<br />

early- and late-stage NSCLC,<br />

SCLC and malignant pleural<br />

mesothelioma,'' says Sabine<br />

Maier, M D, Development<br />

Lead, Thoracic Cancers,<br />

Bristol-Myers Squibb.<br />

In October, BMS<br />

announced topline results<br />

from the Phase 3 CheckMate-331 study<br />

evaluating nivolumab versus the current<br />

standard of care, topotecan or amrubicin,<br />

in patients with SCLC who relapsed<br />

following platinum-based chemotherapy<br />

did not meet its primary endpoint of<br />

overall survival.<br />

Earlier, in 2016, BMS said nivolumab<br />

failed to achieve its endpoint in a study<br />

and was no better than traditional<br />

chemotherapy at treating newly<br />

diagnosed lung cancer.<br />

Nivolumab has been approved for<br />

second-line NSCLC in more than 65<br />

countries, including the US, Europe,<br />

Japan and China.<br />

PEMBROLIZUMAB<br />

Pembrolizumab is a highly selective IgG4-<br />

kappa humanized monoclonal antibody<br />

against PD-1 receptor.<br />

Pembrolizumab was approved<br />

by the US FDA on October 2015 for<br />

the treatment of metastatic NSCLC in<br />

patients whose tumours express PD-L1<br />

and who have failed treatment with<br />

other chemotherapeutic agents.<br />

Merck sells the drug under the brand<br />

name Keytruda.<br />

Following the results of Keynote<br />

024 trial, the initial approval of<br />

pembrolizumab as a second-line<br />

treatment was extended to first-line<br />

treatment in NSCLC patients with high<br />

PD-L1-expressing tumours (PD-L1 >50%)<br />

with no EGFR or ALK mutations.<br />

The study found treatment with<br />

pembrolizumab prolonged progressionfree<br />

survival (PFS) and overall survival<br />

(OS) and improved objective response<br />

remarkable results in patients who are deemed untreatable<br />

otherwise. It resulted in the complete remission of disease<br />

even in cases of melanoma which has metastasised. However,<br />

it fails to do the trick in all patients with the same condition.<br />

PD-1/PD-L1 inhibitors also share some of the debilitating<br />

adverse effects which are common to this class of<br />

immunotherapies.<br />

“There’s a substantial toxicity because when we remove<br />

the brakes, the immune system will also attack normal tissue.<br />

There is, especially with the anti-CTLA4 therapy, a tendency to<br />

get autoimmune diseases like thyroiditis and hypopituitarism,”<br />

points out Dr Dixit. But that, fortunately, has been largely<br />

managed by dose alterations and other supportive care, he<br />

adds.<br />

26 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


ates (45% vs 28%, respectively)<br />

compared with chemotherapy in a firstline<br />

setting.<br />

The drug was granted accelerated<br />

approval by the US regulator in May<br />

2017 as a first-line combination therapy<br />

for metastatic non-squamous NSCLC<br />

regardless of PD-L1 status, based on the<br />

results of the Keynote-021 Phase 1/2<br />

clinical trial.<br />

"With Keynote-407 and Keynote-042,<br />

there are now five Phase 3 studies<br />

in patients with advanced NSCLC<br />

across common histologies where<br />

pembrolizumab, in combination or as<br />

a monotherapy, has demonstrated an<br />

improved OS benefit over chemotherapy,''<br />

said a Merck spokesperson.<br />

In a first-line setting, pembrolizumab<br />

has shown an OS benefit in around 80%<br />

of all NSCLC patients. In Keynote-189,<br />

pembrolizumab in combination with<br />

pemetrexed and platinum chemotherapy<br />

reduced the risk of death by half<br />

compared to chemotherapy alone as<br />

a first-line treatment for metastatic<br />

nonsquamous NSCLC, regardless of PD-<br />

L1 expression.<br />

In Keynote-407, pembrolizumab, in<br />

combination with carboplatin-paclitaxel<br />

or nab-paclitaxel, significantly improved<br />

OS and PFS as a first-line treatment<br />

in patients with metastatic squamous<br />

NSCLC, regardless of PD-L1 expression.<br />

As a monotherapy, in Keynote-024,<br />

pembrolizumab more than doubled<br />

median OS compared to chemotherapy<br />

in first-line treatment of patients with<br />

metastatic NSCLC whose tumours<br />

expressed PD-L1 with a TPS =50%.<br />

Keynote-042 showed that<br />

pembrolizumab monotherapy<br />

significantly improved OS as the firstline<br />

treatment in patients with locally<br />

advanced or metastatic nonsquamous<br />

or squamous NSCLC whose tumors<br />

expressed PD-L1 (TPS =1%).<br />

In a second-line setting, in<br />

Keynote-010, pembrolizumab significantly<br />

improved OS compared to chemotherapy<br />

in patients whose tumours express PD-L1<br />

(TPS of one percent or more).<br />

According to the Merck spokesperson,<br />

the company has an extensive clinical<br />

development programme in lung cancer<br />

and is advancing multiple registrationenabling<br />

studies with pembrolizumab in<br />

combination with other treatments, as<br />

well as in the form of a monotherapy.<br />

The programme, which comprises nearly<br />

9,000 patients across 15 clinical studies,<br />

is evaluating pembrolizumab across<br />

multiple settings and stages of the<br />

disease. Some of the subsets include:<br />

Pembrolizumab in patients<br />

IN A FIRST-LINE SETTING,<br />

PEMBROLIZUMAB HAS<br />

SHOWN AN OS BENEFIT<br />

IN AROUND 80% OF ALL<br />

NSCLC PATIENTS.<br />

with EGFR mutations (Keynote-789)<br />

or ALK translocations; and<br />

pembrolizumab for the treatment of<br />

SCLC as monotherapy (Keynote-158)<br />

and in combination with chemotherapy<br />

(Keynote-604).<br />

"Merck has more than 20<br />

early phase molecules that we are<br />

exploring as monotherapy or for<br />

potential combination activity with<br />

pembrolizumab, including STING, LAG-<br />

3, TIGIT, RIG-I and an oncolytic virus<br />

CAVATAK. All these agents have the<br />

potential to add significantly<br />

to the effectiveness of<br />

pembrolizumab," she<br />

added.<br />

ATEZOLIZUMAB<br />

Atezolizumab,<br />

marketed as Tecentriq<br />

by F Hoffmann-La<br />

Roche/Genentech is<br />

approved in Europe<br />

and the USA for<br />

second-line treatment of NSCLC following<br />

platinum-based chemotherapy. A<br />

Phase 3 study compared atezolizumab<br />

with docetaxel in unselected patients<br />

who had received up to two previous<br />

chemotherapy regimens, including<br />

at least one platinum-based therapy.<br />

The data showed that the regimen<br />

significantly improved OS in the<br />

atezolizumab treatment group compared<br />

with the docetaxel group. This benefit<br />

was independent of the level of PD-L1<br />

expression, with the patients with low<br />

or undetectable PD-L1 expression also<br />

demonstrating a prolonged OS with<br />

atezolizumab versus docetaxel (12.6 vs<br />

8.9 months).<br />

In March <strong>2018</strong>, Phase III IMpower150<br />

study showed that atezolizumab and<br />

bevacizumab plus carboplatin and<br />

paclitaxel helped people with advanced<br />

lung cancer live longer compared to<br />

bevacizumab plus carboplatin and<br />

paclitaxel.<br />

Currently, Roche has eight Phase III<br />

lung cancer studies underway, evaluating<br />

atezolizumab alone or in combination<br />

with other medicines.<br />

DURVALUMAB, AVELUMAB<br />

Other PD-L1 inhibitors in late-stage<br />

development for NSCLC include<br />

durvalumab (Imfinzi, AstraZeneca) and<br />

avelumab (Bavencio, EMD Serona and<br />

Pfizer). Data for both have recently been<br />

reported.<br />

Data from Pacific Phase 3 trial<br />

involving durvalumab showed that<br />

the drug reduced the risk of death by<br />

32% for patients with unresectable,<br />

stage III NSCLC following chemoradiation<br />

therapy.<br />

Avelumab failed to outdo docetaxel in<br />

second-line NSCLC patients with PD-L1-<br />

positive tumours that cannot be removed<br />

surgically.<br />

Uncertainty about which patients with NSCLC are most<br />

likely to benefit from anti-PD-1/PD-L1 therapy, however,<br />

continues to be the biggest concern for oncologists treating<br />

lung carcinoma.<br />

Researchers point to the many limitations of using the<br />

PD-L1 expression as a biomarker. Anti-PD-1/PD-L1 drugs<br />

do not inhibit every co-inhibitory interaction that may play<br />

a role in anti-tumour T-cell responses. This could be a<br />

contributing factor to the failure of PD-L1 expression to fully<br />

differentiate responders and nonresponders, they opine. The<br />

anti-PD-1/PD-L1 drug is co-developed with its own PD-L1<br />

immunohistochemistry (IHC) diagnostic assay. The US FDA has<br />

mandated that pembrolizumab be used only in conjunction<br />

with its companion PD-L1 test, while the assays for nivolumab<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 27


"Immunotherapy<br />

is going to be<br />

routinely used<br />

in NSCLC"<br />

The tumour cells<br />

have a blanket<br />

to prevent the<br />

immune system<br />

from working.<br />

With the help<br />

of these drugs<br />

[immunotherapy],<br />

we can take out the<br />

blanket and make<br />

the immune system<br />

work.<br />

Dr K Govind Babu<br />

Professor of Medical<br />

Oncology, Kidwai<br />

Memorial Institute of<br />

Oncology, Bengaluru.<br />

and atezolizumab are considered complementary.<br />

Too many subsets<br />

Sub-typing is<br />

better because<br />

now oncologists<br />

can understand<br />

the biology and<br />

treat the patients<br />

accordingly. But, it<br />

is also bad because<br />

it gets the diagnosis<br />

complicated,<br />

requiring many<br />

different approaches<br />

and resources.<br />

Dr Kurt A Schalper,<br />

Assistant Professor of<br />

Pathology and Medicine<br />

(Medical Oncology), Yale<br />

School of Medicine, USA<br />

The carcinoma of the lung has high mutational burden.<br />

Mutations in EGFR and ALK genes are considered key to<br />

the development of NSCLC. These driver mutations are<br />

seen to occur in approximately 10%–35% and 3%–7% of<br />

patients respectively. KRAS mutations are found in around<br />

30% of NSCLC cases. They are more common in patients<br />

with adenocarcinomas and smokers. At present, there is no<br />

approved targeted treatment for KRAS mutant NSCLC. Trials<br />

are underway to determine the efficacy of anti-PD-1/PD-L1<br />

therapy according to KRAS mutation status in a subgroup.<br />

It has also been found that high-level MET (exon 14<br />

skipping mutations) amplification and BRAF and ROS1<br />

mutations are driving events in NSCLC. They occur in 1%–3%<br />

of lung cancers.<br />

Carcinoma of the lung, which appears as a single disease<br />

entity at the outset, is actually a composite of several<br />

pathologies, avers Dr K Govind Babu, Professor of Medical<br />

Oncology, Kidwai Memorial Institute of Oncology, Bengaluru.<br />

“If a cell has a very high number of mutations, we call it<br />

a hot tumour. These cells can initiate a response from our<br />

immune system. But the tumour cells have a blanket to<br />

prevent the immune system from working. With the help<br />

Dr Vishva M Dixit is Vice President and<br />

Staff Scientist, Physiological Chemistry at<br />

Genentech, San Francisco, CA. After heading<br />

Molecular Oncology for 10 years, Dr Dixit<br />

has now turned his efforts to basic research<br />

to study the biochemistry of components<br />

of signaling pathways that often go awry<br />

in disease. Author of over 166 publications<br />

in various journals, he is the winner of<br />

several awards and honours including AHA<br />

Investigatorship Award – 1989-1994; Dawson<br />

Prize in Genetics – 2015 and Gutenberg<br />

Research Award – 2016, among others.<br />

"My mission is to further our knowledge<br />

of disease-related cellular signaling and to<br />

develop novel, high-impact therapeutics,"<br />

says Dr Dixit. Edited excerpts from his<br />

conversation with <strong>FM</strong>.<br />

A discovery on cancer immunotherapy<br />

won this year's Nobel Prize for medicine.<br />

How exactly does the discovery help in<br />

understanding malignancies?<br />

Cancer immunotherapy has been in<br />

the doghouse for decades. The work of<br />

the two investigators, James P. Allison<br />

and Tasuku Honjo, resurrected it so that it<br />

plays a prominent role in the therapeutic<br />

armamentarium in future.<br />

Immunotherapy held a lot of promise.<br />

But there weren't any successes. The reason<br />

is that people were trying to activate the<br />

immune system. And a number of immune<br />

activators were tried and they invariably<br />

failed. The realization of Allison and Honjo<br />

was that the cells have a brake on them. You<br />

can put as much fuel in the system as you<br />

want, as much accelerator as you can press<br />

on: The car is not going to go. The cell is not<br />

going to proliferate or rejuvenate unless you<br />

remove the brakes. That was their realisation.<br />

They said, you have been trying to activate<br />

the immune system in a tumour without<br />

28 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


PHOTO: UMESH GOSWAMI<br />

Cancer immunotherapy has been in the doghouse for decades.<br />

The work of the two investigators, James P. Allison and Tasuku<br />

Honjo, resurrected it so that it plays a prominent role in the<br />

therapeutic armamentarium in future.<br />

Dr Vishva M Dixit<br />

realising the fact that a brake has been<br />

put on it in the tumour environment.<br />

And the immune system is sitting there<br />

paralysed. It can't do anything unless<br />

you remove the brakes. The molecules<br />

CTLA4 and CD-1 are essentially the<br />

brakes of the immune system. Now they<br />

have developed antibodies to neutralize<br />

the brakes and get the immune system<br />

work. Now the immune system is able to<br />

eradicate tumour cells in many cases.<br />

In what way is immunotherapy<br />

going to change the treatment<br />

paradigms in cancer?<br />

The potential of immunotherapy has<br />

already been validated in melanoma<br />

and NSCLC. Treatment with the immune<br />

activators — which activate the immune<br />

system against cancer cells — has proved<br />

to be immensely beneficial. In many<br />

cases, people who would have ordinarily<br />

been dead are still alive...<br />

Does immunotherapy work for<br />

all cancers?<br />

No. There are many cancers that<br />

don't respond to immunotherapy. That is<br />

an area of active research today. It works<br />

only for malignancies that have a very<br />

high mutational burden. NSCLC has the<br />

highest mutation because of smokers.<br />

Smoking generates a lot of mutagens.<br />

What are the possible adverse<br />

effects?<br />

There's substantial toxicity, because<br />

when we remove the brakes, the<br />

immune system will also start to attack<br />

normal tissue. There is, especially with<br />

the anti-CTLA4 therapy, a tendency<br />

to get autoimmune diseases like<br />

thyroiditis and hypopituitarism. But that,<br />

fortunately, has been, largely managed<br />

now by dose alterations and other<br />

supportive care.<br />

How do you compare the benefit of<br />

immunotherapy with other standard<br />

therapies?<br />

These drugs are used in combination.<br />

In melanoma, metastatic melanoma, I<br />

never thought, in my lifetime, the<br />

disease could be cured. Now, it has<br />

been cured: Cured in 10% of the patients<br />

with twelve years out. There's no relapse.<br />

It's a small fraction. But still, it has been<br />

cured. I think it is an amazing step<br />

forward.<br />

What is the potential of<br />

immunotherapy in lung cancer?<br />

Trials are going on. NSCLC has been<br />

a heterogeneously aggressive disease.<br />

Maybe in the adjuvant setting, one may<br />

see a substantial benefit. We may get to<br />

a day when we have targeted biologics,<br />

or we have an inhibitor for an oncogene<br />

like the EGF receptor inhibitor. Then, we<br />

won't need chemotherapy. We are not<br />

there yet.<br />

The future of immunotherapy?<br />

I think it is going to be bright. That's<br />

why they gave the Nobel. It is going to<br />

be routinely used in melanoma, NSCLC,<br />

renal cancer and subsets of prominent<br />

malignancies. But it is not effective in<br />

colon cancer unless you have something<br />

called a mutated phenotype, which is<br />

found only in a small percent of colon<br />

cancers. But it is going to open the door<br />

for more immunotherapies.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 29


RESPIRATION-GATED<br />

RADIATION THERAPY<br />

PHOTOS: UMESH GOSWAMI<br />

According to Dr Manish Chandra, Chief Radio<br />

Oncologist at Jupiter Hospital, Thane, gated radiation<br />

therapy is an exciting and comparatively new option for<br />

treating lung cancer.<br />

“Though the cost is almost 30% more compared to<br />

traditional radiation, the local control achieved through<br />

this method is much better,” he added.<br />

The higher cost is because of more time spent per<br />

patient on the machine for gated radiation. The machine<br />

tries to ensure that the tumour is always within the<br />

radiation beam even as the tumor moves constantly<br />

during the treatment. It takes longer as the procedure is<br />

done after preparing the patient using a kind of breath<br />

control technique.<br />

Radiation treatment for lung cancer has always been<br />

a challenge to radiation oncologists as the target tumour<br />

is usually on the move during the treatment as the lung<br />

is a constantly moving organ.<br />

Traditionally, a larger area of the lung than strictly<br />

required is irradiated to ensure that the tumour is within<br />

the radiation beam, affecting the nearby healthy cells.<br />

With the respiration-gated approach, the radiation<br />

beam is targeted to a specific point in real time in<br />

keeping with the cycle of respiration. Radiation gating<br />

helps to reduce the amount of healthy tissues in the<br />

lung receiving radiation. Thus a higher dose of radiation<br />

can be used at the targeted location. It can also reduce<br />

the length of the treatment from as many as six weeks<br />

to just two or four.<br />

Chandra added that this method, which is practised<br />

by many experienced radio-oncologists in India today,<br />

brings new hope to lung cancer patients who are<br />

untreatable through surgery or traditional radiation<br />

therapy.<br />

Respiration-gated radiation therapy is also being<br />

considered for treating other difficult areas such as<br />

pancreas cancer or tumours close to the kidneys etc..<br />

The studies for such expansion are underway.<br />

of these drugs [immunotherapy], we can take out the<br />

blanket and make the immune system work,” Dr Babu<br />

elaborates.<br />

Newer sub-types of lung cancer are getting identified<br />

as genomic information helps to reclassify tumours. “There<br />

are many [subsets in lung carcinoma], more than we can<br />

count,” says Dr Kurt A Schalper, Assistant Professor of<br />

Pathology and Medicine (Medical Oncology), Yale School<br />

of Medicine, USA. Even as sub-typing helps re-group<br />

tumours more specifically, the deluge of information can<br />

also complicate the diagnosis process at times.<br />

“It is better because now oncologists can understand<br />

the biology and treat the patients accordingly. But, it<br />

is also bad because it gets the diagnosis complicated,<br />

requiring many different approaches and resources,” says<br />

Schalper.<br />

What makes immunotherapy a better option for<br />

lung cancer are certain features characteristic of this<br />

carcinoma. Tumours in the lung tissue, as in case<br />

of melanoma, are very good at invading immunity.<br />

Therefore, the stimulation and the restoration of<br />

the body’s immunity generates a lot of anti-tumour<br />

effects. Conventional treatments, when combined with<br />

immunostimulatory agents, have been shown to be more<br />

effective than either used alone. For example, advanced<br />

carcinoma of the lung, which used to be treated with<br />

standard platinum-based chemotherapy, now depends<br />

on the expression of PD-1 marker. This can improve the<br />

outcome.<br />

Immunotherapy is very a dynamic field and it has a<br />

very well-established role in lung cancer. Investigations<br />

are going on to see the effect of PD-1/PD-L1 blockers<br />

in earlier stages as well as in second and third-degree<br />

lesions, informs Dr Schalper.<br />

Prolonging survival<br />

In personalised medicine, oncologists can select drugs<br />

which works best for the individual by assessing the<br />

genetic makeup of a particular tumour. This concept<br />

of personalised medicine has greater relevance to the<br />

treatment of lung cancer. Earlier, chemotherapy used to<br />

be the only option to kill cancer cells. Then came targeted<br />

therapy where the tumour tissue is first sequenced and<br />

then specifically targeted by drugs. Now, immunotherapy<br />

shows that it is possible to enhance immunity with the<br />

help of some medications so that the body itself can<br />

attack the cancer cells. Here, all one has to do is to check<br />

for relevant biomarkers. “For lung cancers, biomarkers like<br />

PD-1 are currently available. If it is strongly positive, we<br />

can avoid chemo and go ahead with immune therapy,”<br />

comments Dr Rejiv Rajendranath, Consultant Oncologist,<br />

Apollo Specialty Hospital, Chennai, India.<br />

The identification of the right kind of treatment is<br />

better than exposing patients to tedious chemo regimens<br />

without being sure of their efficacy.<br />

30 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


Oncologists, according to Dr Rajendranath, are trying to<br />

lessen the use of chemo and radiation in case of lung cancer<br />

and stratify the patients to check the feasibility of various<br />

therapeutic regimes like targeted therapy, immunotherapy<br />

or chemotherapy. “Only if all the targets fail, will we go<br />

back to chemotherapy, unlike earlier days where we treated<br />

everybody with chemo,” he says, explaining how targeted and<br />

immunotherapies have brought about a shift in treatment<br />

approaches.<br />

Clearly, NSCLC has a lot of druggable targets. But SCLC<br />

is a different story altogether. SCLC has, largely, been an<br />

orphan disease. Cisplatin chemotherapy for lung carcinoma<br />

is now almost 20-30 years old. Hardly any trials are taking<br />

place in this direction. Most recently, some breakthrough<br />

studies have come up with data showing that if we add an<br />

immunetherapy agent along with chemo in advanced stage<br />

SCLC, the survival of the patient can be improved. Survival<br />

rates are still modest. But such an advancement is really<br />

practice-changing, because clinicians now have one more<br />

drug to use on patients left with no option after all available<br />

drugs failed, contends Dr Rejindranath.<br />

Several oncologists in India, however, prefer a wait-andwatch<br />

approach to immunotherapy. They believe that the<br />

concept is still in its infancy. Moreover, immunotherapy it is<br />

not curative. “We always tell patients that immunotherapy<br />

is not curative. But it is a better option for elderly patients,<br />

who cannot stand chemo,” says Dr Arun Warrier, Consultant<br />

ADENOCARCINOMA:<br />

CHANGING PROFILE<br />

People change. Lifestyles<br />

change. So do disease<br />

profiles. Earlier, squamous<br />

cell carcinoma and small cell<br />

carcinoma were common in<br />

the Indian population because<br />

of smoking and high tobacco<br />

consumption. But interestingly,<br />

lung carcinoma has given way<br />

to adenocarcinoma of late.<br />

“Adenocarcinoma is something<br />

which is more common in the<br />

West. Maybe, because of the<br />

higher use of filter cigarettes<br />

and the western style of life,<br />

adenocarcinoma has become<br />

the most common lung cancer<br />

in India also, according to Dr<br />

Rejiv Rajendranath.<br />

Recent trends indicate that<br />

the incidence of SCLC is coming<br />

down in India. But the numbers<br />

related to NSCLC are going<br />

up. “This increase in NSCLC is<br />

due to genetic aberrations. All<br />

these existed earlier too, but<br />

we’ve started to identify them<br />

only now, that’s all,” says Dr<br />

Anand Babu, Consultant Medical<br />

Oncologist, HCG, Bangalore.<br />

For lung cancers,<br />

biomarkers like<br />

PD-1 are currently<br />

available. If it is<br />

strongly positive,<br />

we can avoid<br />

chemo and go<br />

ahead with immune<br />

therapy.<br />

Dr Rejiv<br />

Rajendranath,<br />

Consultant Oncologist,<br />

Apollo Specialty Hospital,<br />

Chennai.<br />

We always tell<br />

patients that<br />

immunotherapy is<br />

not curative. But it<br />

is a better option<br />

for elderly patients,<br />

who cannot stand<br />

chemo.<br />

Dr Arun Warrier,<br />

Consultant Oncologist at<br />

Aster Medcity, Cochin.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 31


Oncologist at Aster Medcity, Kochi,<br />

Kerala. Overall, immunotherapy benefits<br />

only 10%-15% of the patients with<br />

lung cancer, although it is easier on the<br />

patients. The survival benefits are also<br />

not quite significant vis-a-vis the cost,<br />

he adds.<br />

Immunotherapy, as a breakthrough<br />

treatment modality, comes with a<br />

hefty price tag. Most Indian patients<br />

consider it unaffordable. Now, the effort<br />

is to combine the benefits of different<br />

therapies with checkpoint drugs.<br />

“But all these come at a financial cost<br />

that we like to call financial toxicity,”<br />

comments Dr Govind Babu.<br />

Cost is an issue but it might also<br />

come down over time, believes Dr<br />

Rejindranath. But the survival rate in<br />

lung cancer, which otherwise has the<br />

poorest prognosis among malignancies,<br />

LUNG CANCER: TARG<br />

Immuno-oncology landscape has many<br />

promising vaccine candidates against NSCLC<br />

Efforts to develop vaccines<br />

against lung cancer always<br />

stalled in the face of<br />

challenges and several previous<br />

attempts have proved ineffective.<br />

It is now recognised that immunesuppressive<br />

factors exist in the<br />

microenvironment of tumour cells.<br />

The local immunosuppression arises<br />

from the interplay of cellular and<br />

metabolic functions to regulate<br />

inflammation. Understanding the<br />

fundamental basis of the cancerimmunity<br />

cycle has significantly<br />

boosted vaccine efforts.<br />

A recent analysis of the global<br />

immune-oncology landscape that<br />

appeared in Annals of Oncology<br />

shows that there are more cancer<br />

vaccines under clinical investigation<br />

than any other class of therapeutic<br />

agents. There are more than 340<br />

agents under clinical trials and<br />

another estimated 260 candidates<br />

SURVIVAL BENEFITS, FOR<br />

CERTAIN SUBSETS OF LUNG<br />

CANCER, ARE TEN TIMES<br />

HIGHER THAN THOSE OF<br />

DECADES PAST. MOST OF<br />

THE TIME, PATIENTS WITH<br />

LUNG CARCINOMA COME<br />

FOR DIAGNOSIS AT VERY<br />

LATE STAGES OF THEIR<br />

DISEASE.<br />

has changed dramatically with the<br />

targeted therapies. Survival benefits,<br />

for certain subsets of lung cancer, are<br />

ten times higher than those of decades<br />

past. Most of the time, patients with<br />

lung carcinoma come for diagnosis at<br />

very late stages of their disease. “Here<br />

we can only prolong their survival<br />

and give a meaningful quality of life;<br />

instead of 5-6 months to 24-28-40<br />

months, slowly but steadily,” opines Dr<br />

Rejindranath. Surely, it does make a<br />

difference, all the more.<br />

Divya Choyikutty from Kochi contributed<br />

reporting to this article<br />

32 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


ETED VACCINE THERAPY ON WAY<br />

in preclinical and discovery stages as of<br />

September 2017.<br />

CIMAVax-EGF: Combo trials<br />

CIMAvax-EGF is a therapeutic vaccine<br />

being tested against advanced NSCLC,<br />

developed by the Center of Molecular<br />

Immunology, Havana, Cuba. It is<br />

composed of recombinant human<br />

EGF chemically conjugated to a<br />

recombinant carrier protein, p64, from<br />

Neisseria meningitidis. Results from a<br />

randomized phase III trial conducted<br />

in Cuba between 2006 and 2012 on<br />

a total of 405 patients with advanced<br />

NSCLC showed that the overall survival<br />

(OS) was numerically higher in the<br />

vaccine arm (receiving at least 1 dose<br />

of vaccine) versus control. In the<br />

analysis of per-protocol population,<br />

consisting of patients who received at<br />

least 4 vaccine doses, median OS was<br />

12.4 months versus 9.4 months in the<br />

control group. The survival effect was<br />

even better for patients who had high<br />

EGF concentration (serum EGF >870<br />

pg/ml) at baseline: Median OS for<br />

vaccinated patients in this group was<br />

14.7 versus 8.6 months in the matched<br />

control group.<br />

A study (NCT02955290) to<br />

evaluate the efficacy of CIMAvax-EGF<br />

in combination with nivolumab as<br />

second-line therapy for advanced<br />

NSCLC commenced recruitment in<br />

December 2016.<br />

Another randomized international<br />

phase III study of CIMAvax-EGF in<br />

combination with first-line platinumbased<br />

chemotherapy for patients with<br />

stage IV NSCLC is ongoing.<br />

Vx-001 targeting TERT<br />

Vx-001, a peptide-based vaccine<br />

developed by Paris-based Vaxon<br />

Biotech, is currently in Phase II<br />

clinical studies. It is designed to elicit<br />

immunogenicity of the cryptic epitope<br />

A RANDOMIZED<br />

INTERNATIONAL PHASE III<br />

STUDY OF CIMAVAX-EGF<br />

IN COMBINATION WITH<br />

FIRST-LINE PLATINUM-<br />

BASED CHEMOTHERAPY FOR<br />

PATIENTS WITH STAGE IV<br />

NSCLC IS ONGOING.<br />

derived from telomerase reverse<br />

transcriptase (TERT), a universal<br />

tumour antigen, in order to bind human<br />

leukocyte antigen A2 (HLA-A2) positive<br />

T cells. Data from a randomized,<br />

double-blind, placebo-controlled,<br />

phase IIb clinical trial in about 190<br />

HLA-A2–positive patients with<br />

metastatic or recurrent NSCLC after<br />

platinum-based first-line chemotherapy<br />

found no significant differences in<br />

OS between the groups treated with<br />

Vx-001 and placebo. However, 29%<br />

of patients, who were able to develop<br />

a vaccine-specific immune response,<br />

demonstrated higher OS compared<br />

with non-responders (21 vs 13 months,<br />

P = .004). A subset analysis also found<br />

better OS with vaccine, among patients<br />

who were never-smokers or light<br />

smokers and had non-immunogenic<br />

tumours, with median OS of 20.2<br />

months versus 7.9 months. Vaxon<br />

has plans to investigate Vx-001 in<br />

combination with immune checkpoint<br />

inhibitors in the population of patients<br />

with non-immunogenic NSCLC.<br />

Racotumomab: Anti-idiotype mAb<br />

Racotumomab (Vaxira) is a therapeutic<br />

vaccine that is currently under clinical<br />

development by Recombio, an<br />

international public-private consortium,<br />

in association with the Center of<br />

Molecular Immunology at Havana, Cuba<br />

(CIM) and researchers from Buenos<br />

Aires University and the National<br />

University of Quilmes in Argentina.<br />

It is an anti-idiotype monoclonal<br />

antibody (mAb) against ganglioside<br />

containing NeuGcGM3, a Neu glycolyl<br />

(NeuGc). NeuGcGM3 ganglioside is<br />

expressed in NSCLC. Anti-idiotypic<br />

antibodies are capable of eliciting<br />

an immunogenic reaction against<br />

the original epitope of the selected<br />

antigen as they mimic the nominal<br />

antigen. Final results are awaited<br />

from a randomized phase III trial<br />

(NCT01460472) of racotumomab in<br />

about 1,080 patients carried out in<br />

South America and Southeast Asia.<br />

Tumour neoantigens approach<br />

An alternative vaccine approach gaining<br />

currency recently is the targeting of<br />

tumour neoantigens that arise from<br />

somatic mutations. These neoantigens<br />

are tumour-specific and highly<br />

immunogenic. They are individualized<br />

vaccines comprising multiple RNA or<br />

peptide-based neoepitopes identified<br />

after whole exome sequencing of the<br />

tumour tissue in each patient. Several<br />

clinical trials are underway pursuing the<br />

neoantigens approach in combination<br />

with anti-PD1/PD-L1 drugs. Studies<br />

such as NEO-PV-01, RO7198457,<br />

mRNA-4157, NCT02897765,<br />

NCT03289962 and NCT03313778 are<br />

among them.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 33


drug approvals<br />

Dupilumab for asthma in US<br />

The US Food and Drug<br />

Administration has<br />

approved dupilumab<br />

(Dupixent) as an add-on<br />

maintenance therapy in<br />

patients aged 12 years and<br />

older with moderate-to-severe<br />

asthma with an eosinophilic<br />

phenotype and those with<br />

oral corticosteroid-dependent<br />

asthma.<br />

Dupilumab inhibits<br />

the overactive signaling<br />

of interleukin-4 (IL-4) and<br />

interleukin-13 (IL-13), two key<br />

proteins that contribute to<br />

the Type 2 inflammation that<br />

may underlie moderate-tosevere<br />

asthma. This effect is<br />

associated with the reduction<br />

of inflammatory biomarkers,<br />

including fractional exhaled<br />

nitric oxide (FeNO),<br />

immunoglobulin E (IgE) and<br />

eotaxin-3 (CCL26).<br />

The pivotal trial<br />

programme evaluated 2,888<br />

adult and adolescent patients<br />

with moderate-to-severe<br />

asthma in three randomized,<br />

placebo-controlled,<br />

Talazoparib to<br />

treat gBRCAm<br />

breast cancer<br />

Talazoparib (Talzenna) has<br />

been cleared by US FDA<br />

for patients with deleterious<br />

germline BRCA-mutated<br />

(gBRCAm), HER2-negative<br />

metastatic breast cancer.<br />

Developed by Pfizer,<br />

talazoparib is a poly (ADPribose)<br />

polymerase (PARP)<br />

inhibitor.<br />

The approval was based<br />

on EMBRACA, an open-label<br />

trial randomizing 431 patients<br />

(2:1) with gBRCAm HER2-<br />

negative locally advanced<br />

or metastatic breast cancer<br />

to receive talazoparib (1<br />

mg) or physician’s choice of<br />

chemotherapy (capecitabine,<br />

eribulin, gemcitabine or<br />

multicentre trials for six<br />

months to one year.<br />

In Trial 2 (the largest<br />

trial), dupilumab reduced<br />

exacerbations and improved<br />

lung function in the overall<br />

population. Benefits in<br />

exacerbations were seen<br />

in patients with eosinophil<br />

counts greater than or equal<br />

to 150 cells/microliter, which<br />

represented 70% of the<br />

patients enrolled. Efficacy<br />

improved in patients with<br />

vinorelbine).<br />

The primary efficacy<br />

outcome was progression-free<br />

survival (PFS), according to<br />

Response Evaluation Criteria<br />

in Solid Tumours (RECIST)<br />

1.1, as assessed by a blinded<br />

independent central review.<br />

Estimated median PFS was<br />

8.6 months and 5.6<br />

months in the talazoparib<br />

higher eosinophil counts.<br />

In Trial 3, which evaluated<br />

severe, oral corticosteroiddependent<br />

patients,<br />

dupilumab reduced average<br />

daily oral corticosteroid use<br />

by 70% compared to 42%<br />

with placebo. More than<br />

half of patients treated<br />

with dupilumab completely<br />

eliminated the use of oral<br />

corticosteroids, announced<br />

Regeneron Pharmaceuticals,<br />

Inc and Sanofi.<br />

and chemotherapy arms,<br />

respectively (HR 0.54; 95%<br />

CI: 0.41, 0.71; p


showed that rivaroxaban<br />

vascular dose, 2.5 mg twice<br />

daily, plus aspirin 100 mg<br />

once daily reduced the<br />

risk of the composite<br />

of stroke, CV death and<br />

heart attack by 24 percent<br />

compared with aspirin 100<br />

mg once daily alone in<br />

patients with CAD or PAD.<br />

Rivaroxaban was<br />

discovered by Bayer, and<br />

is being jointly developed<br />

with Janssen Research &<br />

Development, LLC.<br />

Abemaciclib<br />

for HR+ breast<br />

cancer in EU<br />

EMA has cleared<br />

abemaciclib (Verzenio) to<br />

treat women with hormone<br />

receptor-positive (HR+),<br />

epidermal growth factor<br />

receptor 2 negative (HER2-)<br />

locally advanced or metastatic<br />

breast cancer.<br />

The treatment with<br />

CDK4/6inhibitor is approved<br />

as a first-line therapy<br />

in combination with an<br />

aromatase inhibitor or<br />

fulvestrant, and as a secondline<br />

treatment after earlier<br />

endocrine drugs.<br />

The approval of<br />

abemaciclib is based on the<br />

results of the Monarch 2<br />

and Monarch 3 as secondline<br />

and first-line studies. A<br />

phase III trial called Monarch<br />

E is currently underway to<br />

determine the efficacy of<br />

abemaciclibas adjuvant<br />

therapy in early breast cancer.<br />

Earlier, Eli Lilly suspended<br />

the Phase 3 Juniper<br />

programme to extend the use<br />

of abemaciclibinto pancreatic<br />

cancer as it failed to meet the<br />

endpoints<br />

Elapegademase<br />

for ADA-SCID<br />

US FDA has granted<br />

approval for<br />

elapegademase (Revcovi) for<br />

adenosine deaminase severe<br />

combined immune deficiency<br />

(ADA-SCID).<br />

Elapegademase is a longacting<br />

drug that replaces<br />

the missing ADA enzyme in<br />

patients with ADA-SCID with<br />

an engineered, recombinant<br />

form.<br />

The new drug comes as an<br />

alternative to current animalderived<br />

enzyme replacement<br />

therapy pegademase bovine<br />

by Leadiant.<br />

Also known as bubble boy<br />

disease, ADA-SCID is an ultrarare,<br />

inherited geneticdisorder<br />

that compromises patients’<br />

immune systems and leaves<br />

patients unprotected from<br />

infections, and is fatal if<br />

untreated.<br />

The disease is typically<br />

diagnosed within the first<br />

few months of life, and<br />

undiagnosed babies with<br />

ADA-SCID usually die before<br />

Breakthrough<br />

designation for<br />

20-valent vac<br />

Pfizer’s 20-valent<br />

pneumococcal<br />

conjugate vaccine<br />

(20vPnC) candidate,<br />

PF-06482077, received<br />

breakthrough therapy<br />

designation from the US<br />

FDA for the prevention<br />

of pneumonia caused by<br />

Streptococcus pneumoniae<br />

serotypes in the vaccine in<br />

adults.<br />

The FDA decision is<br />

informed by the results<br />

of the 20vPnC Phase 2<br />

randomized, double-blind<br />

trial to evaluate the safety<br />

and immunogenicity of a<br />

multivalent pneumococcal<br />

conjugate vaccine in adults<br />

60 through 64 years of<br />

age.<br />

Anti-depressant vortioxetine<br />

launched in India<br />

Lundbeck launched vortioxetine<br />

(Brintellix) in India for the<br />

treatment of patients suffering<br />

from major depressive disorder<br />

(MDD), following approval from<br />

Drug Controller General of India<br />

(DCGI).<br />

Vortioxetine is a novel<br />

multimodal antidepressant which<br />

has been specifically designed<br />

to inhibit serotonin reuptake and<br />

modulate serotonergic receptor<br />

activity of the neurons in the brain<br />

of affected patients.<br />

It has demonstrated significant<br />

efficacy in reducing the mood<br />

symptoms in adult patients with<br />

depression as measured by<br />

traditional scales like MADRS or<br />

HAMD.<br />

The drug also improves<br />

cognitive performance in adult<br />

patients with depression, as<br />

measured with neuropsychological<br />

tests. Cognitive symptoms are<br />

part of the diagnostic criteria<br />

for depression and include the<br />

ability to concentrate, make<br />

decisions and the ability to<br />

remember, said Lundbeck.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 35


they reach age two due to<br />

infections.<br />

Elapegademase approval<br />

is based on two open-label<br />

trials demonstrating the drug<br />

increases ADA activity, reduces<br />

concentrations of toxic<br />

metabolites and improves<br />

total lymphocyte counts in<br />

ADA-SCID patients.<br />

Cemiplimab for<br />

skin cancer in US<br />

Inotersen to address polyneuropathy<br />

The US Food and Drug<br />

Administration has<br />

approved inotersen (Tegsedi)<br />

for the treatment of<br />

polyneuropathy of hereditary<br />

transthyretin-mediated<br />

amyloidosis in adults.<br />

Inotersenis an RNAtargeting<br />

therapeutic that<br />

reduces the production<br />

of TTR protein through a<br />

once-weekly subcutaneous<br />

injection offering a treatment<br />

for people living with<br />

polyneuropathy caused by<br />

hATTR amyloidosis.<br />

In hATTRamyloidosis,<br />

transthyretin (TTR) protein<br />

misfolds and accumulates as<br />

amyloid deposits throughout<br />

the body. Inotersen targets<br />

the disease at its source by<br />

reducing the production of<br />

TTR protein.<br />

The FDA looked at results<br />

from the Phase 3 NEURO-<br />

TTR study in patients with<br />

hATTRamyloidosis with<br />

symptoms of polyneuropathy.<br />

Results from that study<br />

demonstrated that patients<br />

treated with inotersen<br />

experienced significant benefit<br />

compared to patients treated<br />

with placebo across both coprimary<br />

endpoints: the Norfolk<br />

Quality of Life Questionnaire-<br />

Diabetic Neuropathy (Norfolk<br />

QoL-DN) and modified<br />

Neuropathy Impairment<br />

Score +7 (mNIS+7), a<br />

measure of neuropathic<br />

disease progression, Akcea<br />

Therapeutics, Inc and<br />

Ionis Pharmaceuticals, Inc,<br />

announced.<br />

Cemiplimab-rwlc(Libtayo)<br />

injection for the treatment<br />

of patients with metastatic<br />

cutaneous squamous cell<br />

carcinoma (CSCC) has been<br />

granted approval by USFDA.<br />

Cemiplimab works by<br />

targeting the cellular<br />

pathway known as PD-1. By<br />

blocking this pathway, the<br />

drug may help the body’s<br />

immune system fight the<br />

cancer cells.<br />

The safety and efficacy<br />

of Libtayo were studied in<br />

two open-label clinical trials.<br />

A total of 108 patients (75<br />

with metastatic disease and<br />

33 with the locally-advanced<br />

disease) were included in the<br />

efficacy evaluation.<br />

The study’s primary<br />

endpoint was objective<br />

response rate or the<br />

percentage of patients who<br />

experienced partial shrinkage<br />

or complete disappearance of<br />

their tumor(s) after treatment.<br />

Results showed that 47.2<br />

per centof all patients treated<br />

with cemiplimabhad their<br />

tumoursshrink or disappear.<br />

Cemiplimab is<br />

developed by Regeneron<br />

Pharmaceuticals, Inc.<br />

Emicizumab for<br />

haemophilia<br />

without FVIII<br />

The US FDA has<br />

approved emicizumabkxwh(Hemlibra)<br />

for routine<br />

prophylaxis to reduce the<br />

frequency of bleeding<br />

episodes in adults and<br />

children with haemophiliaA<br />

without factor VIII inhibitors.<br />

Emicizumab is now the<br />

only prophylactic treatment<br />

for people with haemophilia<br />

A with and without factor<br />

VIII inhibitors that can be<br />

administered subcutaneously<br />

and at multiple dosing<br />

options, Roche said.<br />

This approval is based<br />

on positive results from<br />

the phase III Haven 3 and<br />

Haven 4 studies. Emicizumab<br />

prophylaxis led to statistically<br />

significant and clinically<br />

meaningful reductions in<br />

treated bleeds compared to<br />

no prophylaxis and across all<br />

other bleed-related endpoints<br />

in the Haven 3 study, and<br />

showed control of bleeding in<br />

the Haven 4 study.<br />

Haven 3 is a randomised,<br />

multicentre, open-label, phase<br />

III study evaluating the efficacy,<br />

safety andpharmacokinetics of<br />

emicizumabprophylaxis versus<br />

no prophylaxis in people<br />

with haemophilia A without<br />

factor VIII inhibitors. The<br />

study included 152 patients<br />

with haemophiliaA who were<br />

previously treated with factor<br />

VIII therapy.<br />

Dacomitinib to<br />

treat metastatic<br />

NSCLC<br />

P<br />

fizer Inc said the USFDA<br />

has approved dacomitinib<br />

(Vizimpro) to treat non-small<br />

cell lung cancer (NSCLC) that<br />

has spread to other parts of<br />

the body.<br />

Dacomitinib is a kinase<br />

inhibitor indicated for firstline<br />

treatment of patients<br />

with metastatic NSCLC with<br />

epidermal growth factor<br />

receptor (EGFR) exon 19<br />

deletion or exon 21 L858R<br />

substitution mutations as<br />

detected by an FDA-approved<br />

test.<br />

The safety and efficacy of<br />

dacomitinib wasdemonstrated<br />

in Archer 1050, a randomized,<br />

multicenter, multinational,<br />

open-label study. A total of<br />

452 patients were randomized<br />

36 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


1:1 to dacomitinib or gefitinib.<br />

A statistically significant<br />

improvement in PFS, as<br />

determined by the IRC, was<br />

demonstrated for patients<br />

randomized to dacomitinib<br />

compared with gefitinib (HR<br />

= 0.59 [95% CI: 0.47, 0.74],<br />

p months (95% CI: 11.1, 16.6)<br />

compared with 9.2 months<br />

(95% CI: 9.1, 11.0) in the<br />

gefitinib arm.<br />

Vonicog to<br />

treat bleeding<br />

disorder in EU<br />

T<br />

he European Commission<br />

(EC) has granted Marketing<br />

Authorization for vonicogalfa<br />

(Veyvondi) for the treatment<br />

of bleeding events and<br />

treatment of surgical bleeding<br />

in adults with von Willebrand<br />

disease (VWD).<br />

Vonicog alfa is the first<br />

and only recombinant von<br />

Willebrand Factor (rVWF)<br />

treatment in the EU for VWD<br />

that specifically addresses the<br />

primary deficiency, Shire Plc<br />

said.<br />

EC has reviewed the<br />

outcomes from three clinical<br />

trials of a total80 patients with<br />

VWD exposed to vonicogalfa.<br />

These include a Phase 1<br />

multicentre, controlled,<br />

randomized, single-blind,<br />

dose-escalation study of<br />

the safety, tolerability, and<br />

pharmacokinectics(PK) of<br />

rVWF:rFVIII in subjects 18 to<br />

60 years of age with severe<br />

VWD.<br />

VWD is caused by a<br />

deficiency or dysfunction of<br />

VWF, one of several types of<br />

proteins in the blood that<br />

are needed to facilitate<br />

proper blood clotting.<br />

Only a minor proportion of<br />

Fremanezumab to<br />

prevent migraine<br />

The USFDA has approved<br />

fremanezumabvfrm(Ajovy)<br />

injection<br />

for the preventive<br />

treatment of migraine in<br />

adults,announced Teva<br />

Pharmaceuticals.<br />

Fremanezumabis a<br />

humanized monoclonal<br />

antibody that binds to<br />

calcitonin gene-related<br />

peptide (CGRP) ligand and<br />

blocks its binding to the<br />

receptor. It is the first and<br />

only anti-CGRP treatment<br />

for the prevention of<br />

migrainewith quarterly<br />

affected individuals have the<br />

severe form of the disease<br />

and are in need of VWF<br />

replacement.<br />

Vonicog alfa is indicated<br />

in adults with VWD, when<br />

(675 mg) and monthly (225<br />

mg) dosing options, Teva<br />

said.<br />

Fremanezumab was<br />

evaluated in two Phase<br />

III, placebo-controlled<br />

clinical trials that enrolled<br />

patients with disabling<br />

migraine and was studied<br />

as both a stand-alone<br />

preventive treatment and<br />

in combination with oral<br />

preventive treatments.<br />

In these trials, patients<br />

experienced a reduction<br />

in monthly migraine days<br />

during a 12-week period.<br />

desmopressin (DDAVP)<br />

treatment alone is ineffective.<br />

Axicabtagene<br />

gets orphan drug<br />

status in Japan<br />

Axicabtagene ciloleucel<br />

has been granted Orphan<br />

Drug designation by the Japan<br />

Ministry of Health, Labour<br />

and Welfare (MHLW) for the<br />

treatment of diffuse large<br />

B-cell lymphoma (DLBCL),<br />

primary mediastinal large<br />

B-cell lymphoma (PMBCL),<br />

high-grade B-cell lymphoma<br />

(HGBL) and transformed<br />

follicular lymphoma (TFL),<br />

which are aggressive forms<br />

of non-Hodgkin lymphoma<br />

(NHL).<br />

Axicabtagene ciloleucel is<br />

a chimeric antigen receptor T<br />

cell (CAR T) therapy directed<br />

against CD19, which harnesses<br />

a patient’s own immune<br />

system to fight certain types<br />

of B-cell lymphoma.<br />

Based on the results of<br />

a phase 1/2 study (ZUMA-1),<br />

axicabtagene ciloleucelhas<br />

been approved in the US<br />

and Europe. A phase 2 study<br />

similar to the ZUMA-1 study<br />

is currently being planned in<br />

Japan.<br />

The Japan MHLW Orphan<br />

Drug designation system is<br />

designed to promote research<br />

activities and support the<br />

development of orphan drugs<br />

for serious, difficult-to-treat<br />

diseases that affect fewer than<br />

50,000 patients in Japan, and<br />

for which significant unmet<br />

medical need exists.<br />

Baloxavir to<br />

treat acute flu<br />

The US FDA has granted<br />

approval to baloxavir<br />

marboxil for the treatment of<br />

acute uncomplicated influenza.<br />

The oral antiviral drug has<br />

been approved for all patients<br />

12 years of age and older who<br />

have been symptomatic for no<br />

more than 48 hours.<br />

The safety and efficacy of<br />

baloxavir were demonstrated<br />

in two randomized controlled<br />

clinical trials of 1,832 patients<br />

where participants were<br />

assigned to receive either<br />

baloxavir, a placebo, or another<br />

antiviral flu treatment within<br />

48 hours of experiencing<br />

flu symptoms. In both<br />

trials, patients treated with<br />

baloxavir had a shorter time<br />

to alleviation of symptoms<br />

compared with patients who<br />

took the placebo.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 37


case reports<br />

GENE THERAPY<br />

FOR BLINDNESS<br />

LCA - a congenital eye defect that<br />

continues to defy remedy<br />

A<br />

four-month old male child was brought to Lilawati<br />

Hospital in Mumbai with complaints of blindness and<br />

frequent rubbing of eyes. The child had an uneventful<br />

birth history and was active, with no other clinical symptoms<br />

other than roving, or searching, movements of the eyes.<br />

His family history indicated that four out of his father’s<br />

six first cousins had congenital blindness. Brain MRI was<br />

normal, as was the fundoscopy done by an ophthalmologist.<br />

Electroretinogram (ERG), which measures the activity in the<br />

retina, showed a reduction in photoreception function in<br />

the entire retina including both rods and cones. There was<br />

also a poor response to cone stimulation as seen by visual<br />

evoked potential (VEP). Keeping the family history and clinical<br />

observations in mind, the working diagnosis was that of<br />

Leber’s congenital amaurosis (LCA).<br />

LCA is a rare autosomal recessive genetic eye disease that<br />

appears at birth or during the first few months thereafter, and<br />

can affect males and females with an equal probability. While<br />

it affects 1-3 newborns in 1,000,000, it is one of the most<br />

common causes of blindness in children. This eye disease<br />

affects the retina that detects both light and colour, resulting<br />

in severe visual impairment early in the infancy. A common<br />

sign associated with LCA is the Franceschetti’s oculo-<strong>digital</strong><br />

sign, characterized by the poking, rubbing, and/or pressing of<br />

the eyes.<br />

LCA can be caused due to<br />

mutations in the genes necessary<br />

for normal vision. There are<br />

over 26 known genes that<br />

are implicated in LCA, and the<br />

list is still growing. LCA genes<br />

encode proteins important in a<br />

wide variety of retinal functions;<br />

for example, CRB1 and CRX are<br />

important for photoreceptor<br />

morphogenesis, GUCY2D and<br />

AIPL1 for phototransduction,<br />

LRAT, RDH12 and RPE65 for<br />

vitamin A cycling, etc. The<br />

mutations in some of the genes such<br />

as CEP290, CRB1, GUCY2D, or RPE65<br />

are the most commonly associated with<br />

LCA, though 20-30% of the children<br />

with LCA have no identifiable cause.<br />

Treatment for LCA is still primarily at<br />

the clinical trials stage, with only one FDA<br />

approved treatment for the RPE65 mutation<br />

THE AAV2 VECTOR DOES NOT<br />

CAUSE ANY DISEASE AND IS<br />

AN ATTRACTIVE VIRAL VECTOR<br />

FOR GENE THERAPY.<br />

so far. The current gene therapy involves<br />

delivering the RPE65 gene via sub-retinal<br />

injection, which allows for normal RPE65<br />

protein to be expressed and the consequent<br />

restoration of the visual cycle. Voretigene<br />

neparvovec (Luxturna) is a novel gene<br />

therapy developed by Spark Therapeutics<br />

and Children’s Hospital of Philadelphia, USA,<br />

and is the first in vivo gene therapy approved<br />

by the FDA. Voretigene consists of the<br />

Adeno-associated virus serotype 2 (AAV2)<br />

vector containing the RPE65 cDNA. The AAV2<br />

vector does not cause any disease and is<br />

an attractive viral vector for gene therapy.<br />

Vortigene treatment comes with its own<br />

hurdles; the cost of treatment for one eye<br />

is estimated to be a whopping $425,000!<br />

However, this is a one-time therapy, where<br />

the treatment is expected to have long-term<br />

benfits.<br />

38 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


While Voretigene has<br />

passed clinical trials and<br />

is now an FDA-approved THE CHILD’S BLOOD<br />

therapy, several other genetic SAMPLE WAS SENT<br />

therapy options for other FOR GENETIC TESTING.<br />

gene mutations for LCA are THE PANEL INCLUDED<br />

currently being researched in<br />

20 POTENTIAL GENES<br />

mouse models and cell lines.<br />

GUC2YD cDNA constructs IN WHICH A MUTATION<br />

in AAV vector, when subretinally<br />

injected in the BLINDNESS. THE RESULTS<br />

IS KNOWN TO CAUSE<br />

eyes of Gucy2e-/-Gucy2f-/- INDICATED A MUTATION<br />

knockout (GCdKO) mice, IN THE GUCY2D GENE.<br />

have been shown to evoke<br />

scoptopic and photopic<br />

ERG responses. In a slightly<br />

different approach, researchers are also attempting to use<br />

Antisense Oligonucleotide-Based Splicing Correction to allow<br />

normal protein expression in case of CEP290 gene mutations.<br />

Results have been promising so far for human cell lines and<br />

in CEP290 mutant mouse models. However, these studies<br />

still need to undergo clinical trials and obtain<br />

human use approvals, and are currently far<br />

from reaching the patient’s bedside.<br />

To confirm the diagnosis of LCA and to<br />

identify the genetic mutation in the fourmonth<br />

old baby, paediatric neurologist Dr.<br />

K. N. Shah sent the child’s blood sample for<br />

genetic testing using the LCA panel. This<br />

panel included 20 potential genes in which<br />

a mutation is known to cause blindness. The<br />

results indicated a mutation in the GUCY2D<br />

gene. Since, currently there is no therapy<br />

for the GUCT2D mutations, no treatment<br />

is possible for this baby. However, there<br />

is a large potential for the evolution of a<br />

treatment for the condition in the future, and<br />

it is likely that therapeutic options will start<br />

becoming available going forward.<br />

DR SHIVANEE SHAH<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 39


case reports<br />

A RARE SYNDROMIC<br />

ASSOCIATION<br />

A case of jaw tumour with hyper-parathyroidism, which posed several<br />

challenges in resection and reconstruction<br />

DR KRISHNAKUMAR THANKAPPAN &<br />

DR SUBRAMANIA IYER<br />

A<br />

19-year old male from Jharkhand presented with a<br />

10-year history of left sided swelling on the face. It<br />

was insidious in its onset, with a rapid increase in<br />

size during last three years. He had difficulties in breathing<br />

as well as taking his diet orally. The swelling had pushed<br />

his eyes outwards and upwards causing visual problems.<br />

He could only perceive light with his left eye. Clinical<br />

examination showed 15x15 cm swelling on the left side of<br />

face, (Figure 1) extending from the supraorbital ridge to<br />

the angle of the mandible. The swelling was distorting the<br />

external osseocartilaginous framework of the nose. Ala of<br />

the right nostril was preserved. There was also a separate<br />

swelling on the right nasolabial region. Intraoral examination<br />

showed a bulge on the right side, distorting the maxillary<br />

alveolar ridge. Imaging with a CT scan showed a fibroosseous<br />

lesion with a ‘soap-bubble’ appearance. A threedimensional<br />

reconstruction was also done to aid in planning.<br />

Biopsy was suggestive of a fibro-osseous<br />

pathology.<br />

Challenges in resection: The challenges<br />

were to remove the tumour completely<br />

with the preservation of normal structures.<br />

The preservation of the distorted eye<br />

anatomically and functionally was a major<br />

issue. Preserving the oral aperture with<br />

the intact musculature was also important.<br />

The skin was expanded by the tumour and<br />

hence could be preserved if not involved by<br />

the tumour.<br />

Challenges in reconstruction: The principle<br />

was to mirror the normal side and to follow<br />

the anatomical landmarks for fixation. All the<br />

bones were grossly expanded, preventing<br />

fixation. Hence there was no anatomical<br />

reference point. A computer-based planning<br />

was done on the three-dimensional images.<br />

40 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


1 2<br />

3 4<br />

The tumour was subtracted<br />

<strong>digital</strong>ly and the remnant<br />

bones on right were mirrored<br />

to the left. Plates were<br />

prebent as a frame to which<br />

free fibula bone flap was to<br />

be contoured and placed<br />

(Figure 2).<br />

THE CASE DEMONSTRATED<br />

THE IMPORTANCE<br />

OF METICULOUS<br />

MULTIDISCIPLINARY<br />

PLANNING AND<br />

SUCCESSFUL EXECUTION.<br />

Surgical procedure: The<br />

tumour was resected<br />

completely through an<br />

incision placed on the swelling. Much of the skin, the left oral<br />

commissure and the left eye could be preserved structurally. A<br />

left total maxillectomy and right partial maxillectomy was done.<br />

The defect was mainly left maxillary and total hard palate.<br />

There was also a loss of dorsal nasal support. A free fibula<br />

osteocutaneous flap was taken from the left leg of the patient.<br />

Three osteotomies were done to make four bone segments.<br />

Contouring was done on the prebent plate. Three segments<br />

were used to reconstruct the upper jaw; the last segment<br />

was placed vertically for malar eminence and orbital support.<br />

Fixation was done with plate and screws. The nasal deformity<br />

was corrected with dorsal augmentation from the remaining<br />

free fibula graft. Another piece was also used as a columellar<br />

strut. The flap was anastomosed to the facial artery and vein.<br />

The surgery lasted for about 14 hours.<br />

A week later, the pathology was reported as juvenile<br />

ossifying fibroma, psammomatoid type. Juvenile ossifying<br />

fibroma can be rarely associated with<br />

hyperparathyroidism. The patient was<br />

seen by an endocrinologist. Investigations<br />

for hyperparathyroid related syndromes<br />

were done. Serum Calcium (14.6 mg/<br />

dl) and parathyroid hormone (426 ng/L)<br />

were elevated. A Technitium Sestamibi scan<br />

showed increased uptake in the left inferior<br />

parathyroid. Ultrasonogram of the abdomen<br />

showed hamartoma of both kidneys. Left<br />

inferior parathyroidectomy was done as a<br />

second surgery. The PTH level dropped<br />

to 92 ng/L intraoperatively. The post-operative<br />

serum calcium was 8.5 mg//dl). The patient<br />

recovered well from the surgeries and was<br />

discharged. The visual acuity in the left eye<br />

remained the same. He may also require some<br />

additional corrective cosmetic procedures for<br />

the left eye later (Figure 3, 4).<br />

Hyperparathyroidism jaw tumour<br />

syndrome is a rare entity. It is inherited as an<br />

autosomal dominant pattern with incomplete<br />

penetrance. The syndromic associations are<br />

parathyroid adenomas, ossifying fibroma<br />

of the jaw, renal lesions, polycystic kidney<br />

disease, hamartomas and Wilm’s tumour.<br />

Absolute treatment is the removal of the<br />

jaw tumour and the offending parathyroid<br />

adenoma.<br />

It is important to look for the association<br />

of hyperparathyroidism in juvenile ossifying<br />

fibroma of the jaw. Treatment is complete only<br />

if parathyroidectomy is done. There is a 24%<br />

chance of the adenoma to turn malignant.<br />

The case demonstrated the importance of<br />

meticulous multidisciplinary planning and<br />

successful execution. Head and neck surgeons,<br />

plastic surgeons, craniomaxillofacial surgeons,<br />

radiologists, nuclear medicine specialists,<br />

ophthalmologists and pathologists were<br />

involved. The nursing and technical staff also<br />

helped immensely.<br />

Dr Krishnakumar Thankappan is Professor,<br />

Department of Head & Neck Surgery and Oncology<br />

and Dr Subramania Iyer is Professor and Head,<br />

Department of Head and Neck and Plastic Surgery,<br />

Amrita Institute of Medical Sciences, Kochi.<br />

drkrishnakumart@gmail.com<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 41


case reports<br />

ABERNETHY -<br />

AN UNUSUAL<br />

SUSPECT<br />

When the cause of breathlessness in a child<br />

turned out to be a very rare congenital<br />

venous system anomaly<br />

An eight-year-old boy was presented to his<br />

paediatrician with breathlessness. Upon regular<br />

examination, the pediatrician identified a murmur and<br />

referred the child to Dr. Shine Kumar, Paediatric Cardiologist<br />

at Amrita Institute of Medical Sciences, Kochi, for further<br />

evaluation. The child underwent ECG, X-ray, and echo. ECG<br />

and X-ray were nonconclusive. However, echo identified<br />

high pressure in the lung arteries, indicative of pulmonary<br />

hypertension.<br />

Pulmonary hypertension is a type of elevated blood<br />

pressure, but one that involves the arteries of the lung and<br />

the right side of the heart. Symptoms include breathlessness,<br />

fatigue, dizziness, as well as fast heart beats. There are<br />

several causes of pulmonary hypertension like congenital<br />

heart conditions, left-sided heart disease, lung disease, blood<br />

clots in the lungs, other conditions such as blood disorders or<br />

tumours pressing against pulmonary arteries etc. Treatment<br />

is dependent on the cause of pulmonary hypertension and<br />

majority of the time, it is not curable, and only supportive<br />

treatment is available. Doctors can at best help manage<br />

the condition; often having to change and improvise on the<br />

medication or treatment options.<br />

For an effective treatment, it was important to<br />

accurately diagnose the cause of pulmonary hypertension<br />

in this patient. Dr. Kumar’s team therefore carried out<br />

further investigative testing that included an abdominal<br />

ultrasound. The abdominal ultrasound identified an<br />

Abernethy malformation in the liver. Abernethy malformation<br />

is a congenital condition in which there is abnormal<br />

communication between the portal vein and the inferior<br />

vena cava, which causes elevated lung pressures. These<br />

are very rare vascular anomalies of the venous system of<br />

the abdominal region. Normally, de-oxygenated blood from<br />

the abdominal organs is drained by the portal vein into the<br />

liver and then circulated to the heart via the inferior vena<br />

cava. However, in case of Abernathy malformation, the<br />

liver is bypassed due to an extrahepatic<br />

portosystemic shunt and the blood is<br />

diverted directly to the systemic circulation<br />

via the inferior vena cava to reach the<br />

heart. These malformations are remnants<br />

of embryonic vessels and are typically<br />

congenital. There are two types of Abernathy<br />

malformations. Type I is predominantly found<br />

in females in whom there is a congenital<br />

absence of blood flow from the portal vein<br />

to the liver. Type II patients have an end-toend<br />

shunt or an extrahepatic communication<br />

that allows for a complete diversion of the<br />

portal blood into the systemic veins. Type II<br />

on the other hand is predominant in males<br />

where the portal vein is hypoplastic and the<br />

blood gets partially diverted from the portal<br />

vein to the inferior vena cava via a side-toside<br />

shunt or extrahepatic communication.<br />

Abernathy malformations are rare,<br />

42 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


occurring in less than 1%<br />

of the general population.<br />

They are generally detected<br />

incidentally in the paediatric<br />

population, during an<br />

investigation of associated<br />

liver or cardiac anomalies.<br />

It is much more challenging<br />

to identify in older patients<br />

especially in those with other<br />

chronic liver diseases and<br />

with no early diagnosis of<br />

congenital portosystemic<br />

shunts. Once identified,<br />

treatment is dependent on<br />

TYPE I MALFORMATIONS<br />

TYPICALLY REQUIRE A<br />

LIVER TRANSPLANTATION,<br />

WHEREAS TYPE II<br />

MALFORMATIONS ARE<br />

COMPLETELY CURABLE<br />

WITH EITHER<br />

SURGICAL LIGATION OR<br />

ENDOVASCULAR OCCLUSION.<br />

the type of malformation. Type I malformations typically<br />

require a liver transplantation, whereas type II malformations<br />

are completely curable in a simpler manner with either<br />

surgical ligation or endovascular occlusion.<br />

Within 2 weeks of diagnosing a type II Abernathy<br />

malformation, the 8-year-old boy underwent<br />

a keyhole surgery through a vein in the leg,<br />

and the abnormal extrahepatic channel<br />

was occluded using a metallic plug. Regular<br />

follow ups showed that the treatment<br />

was successful, and the child did not have<br />

pulmonary hypertension. It has been 2 years<br />

since the procedure and the patient is doing<br />

well.<br />

“Pulmonary hypertension can be caused<br />

due to many conditions, most of them are<br />

not curable. The ultrasound identified a type<br />

II Abernathy malformation in our patient,<br />

which was a very fortunate diagnosis as it<br />

is one of the few treatable conditions that<br />

causes pulmonary hypertension,” says Dr.<br />

Kumar.<br />

DR SHIVANEE SHAH<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 43


case reports<br />

PROBE ON CULTURE-NEGATIVE<br />

LESIONS<br />

Why it is important to pin down non-tuberculous mycobacteria species rapidly<br />

A<br />

72-year-old woman presented with multiple painful<br />

lesions on the abdomen to the dermatology<br />

department at Amrita Institute of Medical Science,<br />

Kochi. The consulting dermatologist, Dr. Soumya Jagadeesan,<br />

noted that the lesions were purulent and the patient had<br />

previously undergone surgical drainage multiple times<br />

without any benefit. Gram staining of smears and routine<br />

cultures were negative and the patient had been treated<br />

with multiple courses of broad spectrum antibiotics, with<br />

no response even after several weeks. A skin biopsy had<br />

revealed a granulomatous inflammation and the patient was<br />

started on anti-tuberculosis treatment on the presumption<br />

that it might be an extra-pulmonary<br />

tuberculosis infection, as the chest X-ray was<br />

normal. At the time of her presentation to<br />

the centre, the patient had not responded<br />

to even anti-tuberculosis treatment. An<br />

atypical (non-tuberculous) mycobacterial<br />

infection was then suspected. While there<br />

was no history of trauma or surgery, the<br />

patient was taking insulin injections at the<br />

same site and admitted that she was not<br />

taking efforts to take these injections in an<br />

aseptic manner. Further testing including<br />

44 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


Ziehl–Neelsen staining of smears and mycobacterial cultures<br />

were done. Staining showed acid-fast bacilli. Nonpigmented<br />

colonies were observed on the 6th day in the cultures.<br />

Multiplex PCR was done and confirmed the presence of M.<br />

chelonae. The patient was then started on doxycycline and<br />

clarithromycin. Clarithromycin<br />

had to be substituted with<br />

linezolid as the patient had<br />

severe diarrhea due to the<br />

medication. The lesions<br />

healed within 4 weeks of<br />

starting this treatment and<br />

the treatment was continued<br />

for an additional 6 weeks. No<br />

recurrence was observed at<br />

the sixth-month follow up.<br />

Incidence of nontuberculous<br />

mycobacteria is<br />

on the rise. Non-tuberculous<br />

mycobacteria include<br />

mycobacterial species other<br />

INCIDENCE OF<br />

NON-TUBERCULOUS<br />

MYCOBACTERIA IS ON THE<br />

RISE. NON-TUBERCULOUS<br />

MYCOBACTERIA INCLUDE<br />

MYCOBACTERIAL<br />

SPECIES OTHER THAN<br />

MYCOBACTERIUM<br />

TUBERCULOSIS.<br />

than Mycobacterium tuberculosis, and contribute to causing<br />

infections in the lungs, lymph nodes, bone, brain, kidneys,<br />

genital tract as well as skin tissue. Different mycobacterial<br />

species respond to different treatment regimens and<br />

therefore rapid identification of the correct species is<br />

extremely important for appropriate treatment. Further,<br />

many non-tuberculous mycobacteria are resistant to typical<br />

M. tuberculosis treatments, making it essential to accurately<br />

determine the causative species. In India, the most prevalent<br />

non-tuberculous mycobacterial species include M. abscessus,<br />

M. fortuitum and M. chelonae in extrapulmonary tissue<br />

samples.<br />

While rapid and accurate identification of these species<br />

is extremely important, diagnosis is challenging as they may<br />

not be identified via routine culture techniques. Recently,<br />

high performance liquid chromatography (HPLC) analysis of<br />

mycolic acids, probe-based tests and DNA sequencing have<br />

been used. However, they come with their own limitations.<br />

HPLC requires special expertise in interpreting the data<br />

generated and needs expensive equipment. Kit-based<br />

probe assays are costly and may not be readily available,<br />

while DNA sequencing is time consuming. Multiplex PCR<br />

options are also now available for accurate identification of<br />

rapid grower mycobacterium. It can differentially diagnose<br />

between M. abscessus, M. fortuitum,and M. chelonae, and is<br />

a useful diagnostic test in case rapid grower mycobacterium<br />

is suspected. Rapid identification is critical, since the<br />

treatment will depend on the species. For instance, M.<br />

chelonae responds well to medical management, however,<br />

M. abscessus may not and may require surgical management<br />

such as drainage of pus and removal of necrotic tissue to<br />

augment the treatment.<br />

This case was one of four M.chelonae infected cases<br />

that came to Dr. Jagadeesan’s attention in the past one<br />

and a half years, and she advises that<br />

“a high index of suspicion is necessary if<br />

a patient presents with lesions that are<br />

culture negative and has a history of injury<br />

or surgical treatment.” She advocates that<br />

since these infections often occur at surgical<br />

sites, especially following laparoscopic<br />

procedures, inadequate sterilization<br />

practices at the hospitals maybe a source of<br />

the infection and doctors may need to be<br />

ready to inform the source sites to prevent<br />

further cases.<br />

Dr. Jagadeesan is now quick to consider<br />

M. chelonaein case of culture-negative<br />

cases and is prompt in carrying out the<br />

multiplex PCR to confirm her working<br />

diagnosis. Recently, a 42-year old lady<br />

presented with lesions on the abdomen.<br />

These lesions were at the site of a recent<br />

laparoscopic sterilization procedure.<br />

Multiplex PCR was done and M. chelonae<br />

was identified fairly quickly. The patient<br />

was started on clarithromycin and ofloxacin<br />

tablets and recovered within 4 weeks. The<br />

treatment was however continued up to<br />

12 weeks to prevent any recurrence. Thus,<br />

accurate early identification can substantially<br />

reduce the lag time in correct diagnosis<br />

and avoid inappropriate antibiotic use and<br />

anti-tuberculosis therapy that can result in<br />

adverse side effects and undue toxicity.<br />

DR SHIVANEE SHAH<br />

46 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


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case reports<br />

BRACHYTHERAPY FOR<br />

BRAIN CANCER<br />

An instance where localised internal radiation therapy has been successfully<br />

used to control tumour growth<br />

Brachytherapy is an age-old method that is effective for<br />

irradiating cancer cells, especially in cervical, prostate,<br />

breast and skin cancers. This radiotherapy technique<br />

involves the introduction of a sealed source of radiation close<br />

to the area requiring treatment. Because of the proximity to<br />

the cancer cells, there is reduced probability of unnecessary<br />

damage to the neighbouring healthy cells. It is therefore<br />

relatively less harmful, even though high doses of localized<br />

radiation are delivered.<br />

Brachytherapy is a minimally invasive technique that<br />

reduces the treatment duration for certain<br />

types of cancer and is often considered to<br />

be an alternative treatment for challenging<br />

cases. Due to the simplicity of the technique,<br />

it offers the ease of an outpatient treatment<br />

regimen with a quicker recovery time. It<br />

has also been proposed that the short<br />

treatment duration of brachytherapy may<br />

also be of potential benefit in preventing<br />

cancer recurrence. With all these benefits, it<br />

48 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


could well have been the treatment of choice in such cases.<br />

However, it is effective only in cases when the tumour is<br />

accessible. Moreover, the survival rates are not consistently<br />

superior to other radiation oncology techniques.<br />

In India, brachytherapy is widely used for treating<br />

gynecological cancers. Some of the other types of cancer<br />

where it is used are those affecting the skin, prostate,<br />

head and neck, breast and even eyes. Despite its overall<br />

acceptability, this form of irradiation has not been reported<br />

for the treatment of brain tumours in India. In perhaps one of<br />

the first brachytherapy treatment cases for brain cancer, Dr.<br />

Manish Chandra, a Radiation Oncologist at Jupiter Hospital,<br />

Thane, successfully used this method on a patient recently.<br />

A 40-year old man, who had high grade glioblastoma<br />

(WHO Grade IV), had previously undergone tumour resection<br />

surgery, followed by radiation therapy. By the end of 18<br />

months post treatment, the cancer recurred and the patient<br />

had to undergo a second surgical procedure, followed by<br />

chemotherapy. Unfortunately, within a span of 2 months<br />

after the second surgery, the tumour was found to have<br />

recurred again. Since the tumour was recurring and repeated<br />

brain surgery has adverse effects, the patient was referred<br />

to Dr. Chandra for further treatment and follow-up. After<br />

carefully considering the patient’s previous history, age, the<br />

accessibility of the tumour, and most importantly, the fact<br />

that the patient was otherwise healthy, Dr. Chandra proposed<br />

brachytherapy as the best choice to go forward. The patient<br />

was also explained the reasons behind the proposed choice,<br />

and was willing to undergo<br />

the procedure. One of the<br />

challenges of this technique<br />

is the need to anticipate<br />

possible brain damage as<br />

the needles go through<br />

the brain tissue to reach<br />

the tumour. This procedure<br />

was performed in local<br />

anaesthesia and patient<br />

was conscious during the<br />

procedure.<br />

Pre-procedure planning<br />

was quite elaborate as the<br />

exact location of the tumour<br />

needed to be mapped. A<br />

team of doctors, including<br />

Dr. Chandra, Neurosurgeon<br />

Dr. Harshad Purandare and<br />

technical person Mr Devarsh<br />

(3D – Rendering), first set<br />

about preparing a grid-based<br />

model using 3D images from<br />

MRI scans to determine the<br />

location at which the holes<br />

would need to be drilled in<br />

the skull for needle insertion<br />

ONE OF THE CHALLENGES<br />

OF THIS TECHNIQUE IS<br />

THE NEED TO ANTICIPATE<br />

POSSIBLE BRAIN DAMAGE<br />

AS THE NEEDLES GO<br />

THROUGH THE BRAIN<br />

T<strong>ISSUE</strong> TO REACH THE<br />

TUMOUR.<br />

and the length of the individual needles. At<br />

the time of the procedure, the pre-designed<br />

grid was marked on the skull of the patient<br />

such that the specific points within the grid<br />

were identified with a label and each label<br />

corresponded to the depth of the hole that<br />

was to be drilled. The process of pre-fixing<br />

the depth of the needle insertion to deliver<br />

the radiation is a very delicate and complex<br />

process and must be done keeping in mind<br />

not just the location of the tumour, but also<br />

the positioning of underlying blood vessels<br />

and the surrounding healthy tissue. Dr.<br />

Purandare then drilled 17 holes in the skull<br />

for needle insertion. The entire procedure<br />

was carried out under local anaesthesia<br />

and the patient was able to communicate<br />

with the operating surgeons throughout<br />

the surgery. Once the needles were fixed,<br />

confirmatory MRI and CT scans were done.<br />

After computerized treatment planning,<br />

the radiation therapy was delivered.<br />

Approximately 36 Gy was delivered in six<br />

fractions over three days.<br />

The needles were then removed in the<br />

operation theatre on the 3rd day, as some<br />

blood/fluid leakage was expected. However,<br />

anaesthesia was not required for the needle<br />

removal process. The patient was kept in<br />

the ICU, where he was closely monitored<br />

over the next two days. A CT scan was done<br />

immediately after the removal of the needles<br />

and was found to be normal. By 24 hours,<br />

the CT showed minor bleeding, which was<br />

expected, and by 48 hours, the condition<br />

was stable. The patient was discharged and<br />

advised to come for regular follow-ups every<br />

three months. In his latest follow-up at six<br />

months, the MRI showed that the tumour<br />

size was stable. The patient had been<br />

relieved of his pre-brachytherapy symptoms<br />

of nausea, vomiting, and headache.<br />

Many patients and their families have<br />

approached Dr. Chandra since the success<br />

of this treatment procedure. However, Dr.<br />

Chandra is very careful in selecting only<br />

those cases that are likely to benefit from<br />

this treatment. He further cautions that this<br />

therapy only prolongs life by 6-9 months on<br />

average and is not a cure for brain tumour,<br />

but just another way of managing the<br />

condition.<br />

DR SHIVANEE SHAH<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 49


education<br />

NEUBERG-ANAND TO OFFER<br />

POST-MD FELLOWSHIP COURSE<br />

NAALM aims to create awarenness on nextgen diagnostics by education and research<br />

PHOTO: DEEPAK PAWAR<br />

As advances in genomics and<br />

bioinformatics revolutionize the<br />

field of diagnostics, the medical<br />

fraternity in India is forced to play<br />

catch up. This is the idea behind the<br />

creation of Neuberg Anand Academy<br />

of Laboratory Medicine (NAALM), a<br />

new school for pathologists and other<br />

specialists. The aim behind this firstof-its<br />

kind project is to create a unique<br />

platform for academics and encourage<br />

research in this field.<br />

Neuberg founder and managing<br />

director GSK Velu is unambiguous<br />

about his objective. “Low awareness<br />

about next generation diagnostics is<br />

a key challenge in Indian healthcare<br />

today. This is true across healthcare<br />

providers as well as seekers. So, we<br />

want to first create awareness among<br />

the decision makers, which is the<br />

medical fraternity, by giving them a<br />

live exposure to the new tests and<br />

processes.”<br />

The potential for the clinical<br />

application of genomic technologies,<br />

despite their relative novelty, is<br />

vast. They offer a wide range of<br />

opportunities across medical specialities<br />

to ensure a more accurate diagnosis<br />

and treatment. But these benefits<br />

will not reach the needy unless<br />

the clinician is familiar with these<br />

possibilities.<br />

While many new-generation<br />

clinicians are already exposed to such<br />

technologies and are quick to adopt the<br />

new methods, especially in the metros<br />

and urban areas, awareness is still very<br />

low among old-school practitioners,<br />

particularly in semi urban and rural<br />

areas. Similarly, there is also a severe<br />

shortage of technicians who can handle<br />

these new technologies.<br />

The diagnostics education and<br />

research initiative under NAALM is<br />

expected to not only help fill the gap<br />

to a certain extent, but also trigger<br />

more such initiatives in the industry<br />

to address the need. Large-scale<br />

awareness will automatically lead to<br />

50 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


etter availability and affordability,<br />

which are the other big challenges<br />

in the adoption of these new<br />

technologies in India.<br />

NAALM is a not-for-profit<br />

foundation set up by Neuberg<br />

Diagnostics, an international diagnostic<br />

alliance, to provide fellowship<br />

programmes in the fields of laboratory<br />

medicine and laboratory management<br />

to MD/DNBs in the specialties of<br />

pathology, microbiology, biochemistry<br />

and transfusion medicine. DCPs with<br />

one year experience can also apply for<br />

this programme, which will start from<br />

this year.<br />

Neuberg, an alliance of established<br />

diagnostic chains from India, Sri Lanka,<br />

South Africa and UAE, has a proven<br />

NAALM IS A NOT-FOR-<br />

PROFIT FOUNDATION SET UP<br />

BY NEUBERG DIAGNOSTICS,<br />

TO PROVIDE FELLOWSHIP<br />

PROGRAMMES IN THE<br />

FIELDS OF LABORATORY<br />

MEDICINE AND<br />

LABORATORY MANAGEMENT<br />

TO MD/DNBS.<br />

skill-set and experienced resources in<br />

different areas of diagnostics. It claims<br />

to have at least three world class<br />

global reference laboratories located<br />

in Bangalore, Ahmedabad<br />

and Durban (South Africa), carrying<br />

out an advanced range of testing<br />

using new generation in vitro<br />

diagnostic techniques, total lab<br />

automation and big data analytics<br />

supported by a robust laboratory<br />

information system.<br />

The NAALM Foundation has<br />

already tied up with Sri Devraj Urs<br />

Academy of Higher Education &<br />

Research, Karnataka, and is also<br />

talking to other universities and<br />

research and education institutions<br />

in different regions to get its<br />

programmes affiliated with them.<br />

“We will reinvest revenue<br />

from NAALM back to<br />

education and research”<br />

What was the inspiration<br />

behind NAALM?<br />

Neuberg Diagnostics was formed<br />

with a strategic vision that it will<br />

be in the top league of diagnostic<br />

industry in terms of technology,<br />

experience and volume, as it is an<br />

alliance of five leading and most<br />

reputed diagnostic chains from India<br />

and other countries. We wanted<br />

to pursue the same vision by<br />

developing the overall sector as well<br />

as the market by creating awareness<br />

about the benefits of these modern<br />

technologies. We also want to<br />

encouraging research in this field for<br />

future growth in technology.<br />

Why did you start this<br />

programme under a non-profit<br />

entity?<br />

With this, we wanted to create<br />

a platform that will contribute<br />

immensely to the growth of the<br />

sector; by building awareness<br />

through education. So, it cannot<br />

be mixed with business. Since we<br />

won’t have any external investors, at<br />

least for the next 3-4 years, we are<br />

free to invest in such activities that<br />

GSK Velu<br />

won’t result in revenue and profit<br />

immediately. In the future too, we<br />

would like to continue to invest in it<br />

by putting back the income from this<br />

venture into education and research.<br />

How do you want to take<br />

Neuberg forward in the emerging<br />

healthcare trend?<br />

Neuberg Diagnostics, which has<br />

a combined diagnostic expertise of<br />

over 250 years, brings advanced<br />

diagnostics that is affordable to<br />

people across the globe. It is an<br />

alliance of top laboratories like<br />

Anand Diagnostic Laboratory,<br />

Supratech Micropath, Ehrlich Lab,<br />

Global Labs and Minerva Labs, which<br />

have already made their presence<br />

felt in their respective markets such<br />

as Karnataka, Gujarat, Tamil Nadu,<br />

South Africa and UAE. It will have<br />

three global reference laboratories<br />

located in Bangalore, Ahmedabad<br />

and Durban (South Africa), carrying<br />

out an advanced range of testing<br />

using new-generation in vitro<br />

diagnostic techniques along with<br />

total lab automation and big data<br />

analytics tools. Currently, there are<br />

10 labs and 40 satellite centres for<br />

all the five companies put together<br />

in southern and western India.<br />

The plan is to increase it to 100 in<br />

the next two years. About ₹450<br />

crore has been already invested<br />

in acquiring major sharesand<br />

upgrading the labs. The plan is<br />

to invest another ₹300 crore for<br />

expansion in coming years to bring<br />

in, and develop, new technologies,<br />

which include acquisitions in the US<br />

and Europe.<br />

PHOTO: PRASHANTH KADAM<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 51


education<br />

BRIDGE COURSE AT<br />

CROSSROADS<br />

IMA questions Gujarat govt’s move to implement six-month `bridge course’ for<br />

Ayush practitioners in court<br />

BANO SARKAR<br />

Even though a Union Cabinet<br />

meeting chaired by Prime<br />

Minister Narendra Modi removed<br />

a provision from the National Medical<br />

Commission (NMC) Bill for a bridge<br />

course for AYUSH practitioners to<br />

practice modern medicine in March,<br />

allopathic medical practitioners under<br />

the Indian Medical Association (IMA)<br />

have approached the Gujarat High<br />

Court questioning a similar move by<br />

the state government.<br />

Gujarat government issued an<br />

advertisement calling for applications<br />

for a six-month-long bridge course to<br />

permit those who completed Bachelor<br />

of Science (Nursing), Bachelor of<br />

Ayurvedic Medicine and Surgery (BAMS)<br />

and General Nursing and Midwifery<br />

(GNM) courses to practice modern<br />

medicine.<br />

The court, observing that the same<br />

plea is pending before the State Health<br />

Department, asked the department to<br />

consider the IMA’s arguments on the<br />

matter.<br />

IMA has been opposing the idea<br />

of replacing the Medical Council of<br />

India (MCI) from the time when the<br />

suggestion was made in the NMC<br />

Bill. It has also been raising an alarm<br />

on the potential dangers of allowing<br />

bridge courses for alternative medicine<br />

practitioners.<br />

IMA’s stand against the practitioners<br />

of other systems of medicine<br />

practising allopathic medicine has<br />

been there for many years. “It is<br />

estimated that about 10 lakh<br />

quacks are practising allopathic<br />

medicine, out of which 4 lakh belong<br />

to practitioners of Indian Medicine<br />

(Ayurvedic, Siddha, Tibb and Unani),”<br />

states its anti-quackery wing on its<br />

website.<br />

With doctors under the leadership<br />

of IMA announcing a strike against<br />

these decisions, the Union Cabinet had<br />

IMA HAS BEEN RAISING AN<br />

ALARM ON THE POTENTIAL<br />

DANGERS OF ALLOWING<br />

BRIDGE COURSES FOR<br />

ALTERNATIVE MEDICINE<br />

PRACTITIONERS.<br />

removed the provision dealing with<br />

bridge courses for AYUSH practitioners.<br />

However, it had also said that it was<br />

“leaving it to state governments to take<br />

necessary measures for addressing and<br />

promoting primary health care in rural<br />

areas.”<br />

The idea behind the decision go<br />

offer bridge courses was, in a way,<br />

to address the acute shortage of<br />

qualified allopathic doctors to attend<br />

to the underserved population,<br />

especially in rural areas.<br />

Infrastructure and<br />

availability of<br />

medical practitioners are crucial to the<br />

success of government’s prestigious<br />

national health scheme Ayushman<br />

Bharat Yojana.<br />

According to a recent report by<br />

IndiaSpend, a public interest data<br />

journalism initiative, public health<br />

centres need 25,650 doctors to attend<br />

to a minimum of 40 patients per doctor<br />

per day for outpatient care across the<br />

country. But there is a shortage of 3,027<br />

doctors, leaving 1,974 PHCs without<br />

doctors, which means almost 1,21,080<br />

patients cannot meet a doctor for their<br />

health requirement every day.<br />

While a section of allopathic<br />

medicine practitioners oppose bridge<br />

courses tooth and nail, another section<br />

from the same fraternity are of the<br />

view that making qualified healthcare<br />

professionals in the rural areas would<br />

help to address the healthcare need<br />

of the country and can also relieve<br />

doctors from undergoing compulsory<br />

rural practice. It could also address the<br />

issue of quacks and practitioners of<br />

other systems of medicines practising<br />

allopathic medicine and putting<br />

the lives of people in rural<br />

areas at risk.<br />

52 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


straight talk<br />

“I AM IN FAVOUR OF OPEN<br />

ACCESS, IT’S A GOOD MODEL”<br />

MYLES AXTON, chief editor,<br />

Nature Genetics, believes that open<br />

access is a good model for online<br />

publications, though it doesn’t have<br />

the same reader responsiveness<br />

as the subscription model. But the<br />

bigger challenge for the publishers<br />

of the world’s most read<br />

peer-reviewed journals is still<br />

the large overhead costs,<br />

especially for the ones which<br />

do not charge article processing<br />

charges, says Axton in Straight Talk<br />

with CH UNNIKRISHNAN.<br />

Edited excerpts:<br />

One of the key concerns of scientists and medical<br />

researchers, who dream of getting their research papers<br />

published in reputed peer-reviewed journals like yours, is<br />

the fear of rejection. How would you react to this?<br />

It is important to make sure that scientists have access to<br />

the best advice so that they can get their research published<br />

quickly and in a robust form that can be used as a research<br />

tool by other people. Any research, which meets the basic<br />

and the strong elements of novelty and conceptual advance<br />

shouldn’t ideally face any such issue.<br />

I don’t have much respect for the concept of symbolic<br />

publication. The idea is that if there is a breakthrough or<br />

something big that needs to be known by everyone, it is<br />

more important that scientists should know this first as a tool<br />

to move the field forward. And at the end, when you look<br />

at one’s career, you should be able to say that you made a<br />

lot of good scientific decisions and some clever experiments<br />

with dedication to solve a particular set of problems. This is<br />

what makes you a great scientist.<br />

Often a great scientist is somebody on the ground close<br />

to the problem and who realises that this is a problem and<br />

therefore it has a technical solution. Often, this solution is<br />

not very difficult. But it requires new resources, knowledge<br />

and years of dedication. Finally you may find that it was<br />

essentially a simple solution.<br />

How do you prioritise the papers for publishing from the<br />

large number of submissions by authors?<br />

It is the same, like novelty and conceptual advance,<br />

like any other journal. And of course, a voice in your head<br />

saying how many labs would do their projects differently<br />

after reading this paper is another key consideration.<br />

The interesting insights that we get on the research from<br />

the authors and the paper about how significant was the<br />

knowledge gap that they tried to fill in while bringing up the<br />

point for conclusion, whether it led to positive or negative<br />

result, also contributes to the decision. Ideally, the best paper<br />

to publish is the one that helps in moving the field forward.<br />

In terms of interviewing authors, it is quite satisfying for<br />

my team of managers as they ask questions to know the<br />

story behind the story. And they will tell you what happened<br />

in the lab and so on and so forth, which helps the editor to<br />

really take a much better view of the paper, which is often<br />

appreciated by the authors as well as readers. That way, as<br />

an editor of a peer-reviewed science journal, it is nice to get<br />

54 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


to start the communication with a question<br />

to which they wanted answers and reward<br />

them with an answer to know more on<br />

what they are looking for. For example,<br />

in your case, the doctors would be more<br />

interested in science if that has a direct<br />

clinical application.<br />

Similarly, it will be difficult to<br />

communicate to a clinical researcher unless<br />

you are close to clinical research. In clinical<br />

research, the doctor is always curious to<br />

know why the condition of one group of<br />

patients improves while it worsens for the<br />

other. He also wants to know if he can<br />

have a marker or the patients need to be<br />

put on a different course of treatment.<br />

As an editor of a peer-reviewed science<br />

magazine, I have to always think in the<br />

perspective of a peer reviewer asking a<br />

question to the author in the language of a<br />

scientist. But for science editors who cater<br />

to the information needs of a public or<br />

professional audience, they need to think<br />

in users’ perspective.<br />

paid as a professional appreciator.<br />

As far as communicating the science is<br />

concerned, how is it different in a magazine<br />

like Nature Genetics, which is read by a<br />

scientific audience, compared to journals<br />

that are aimed at a translational audience?<br />

The mistake in communicating science<br />

to translational or non-scientific audience is<br />

often that the scientists or the communicator<br />

approach them thinking that they<br />

understand science. It will never work unless<br />

the audience finds it connected to their<br />

area of work or interest. The translational<br />

audience will get interested or try to<br />

understand the subject only if it answers<br />

their questions or they find some direct<br />

applications of the same in their field. It<br />

is true across professions whether it is an<br />

agriculturist or a doctor. So it is always better<br />

PHOTO: UMESH GOSWAMI<br />

Translational<br />

audience will<br />

get interested<br />

or try to<br />

understand the<br />

subject only<br />

if it answers<br />

their questions<br />

or they find<br />

some direct<br />

applications<br />

of the same in<br />

their field.<br />

What about an open access policy for<br />

journals like Nature?<br />

I am in favour of open access, I<br />

think it’s a good model. But it doesn’t<br />

have the same reader responsiveness<br />

as subscription model, except the fact<br />

that it can be read by everybody. In the<br />

subscription model, the readers take it<br />

as valuable and place it in the library<br />

of research, but on the contrary, in the<br />

open access model, one can say that it<br />

is valuable as even the students who are<br />

not affiliated with wealthy institutions can<br />

be inspired by the research. So, the draw<br />

aspect of the open access is very attractive<br />

indeed. Certainly, we can get 50% more<br />

readership for Nature Genetics if we make<br />

every article open access and that would<br />

be appealing.<br />

Nature is a big open access publisher.<br />

We have got Nature Communications with<br />

nearly 70 editors and making a big effort<br />

with open access. We publish Reference<br />

Genomes under open access because the<br />

community demands it. But we don’t take<br />

any article processing charge as we don’t<br />

have any business model to accept that.<br />

So there is no prospect of making all of the<br />

journals open access as that’s not the way<br />

the journal was set up.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 55


esearch snippets<br />

eLiquid biopsy detects<br />

early lung cancer<br />

Wei et al demonstrate electric fieldinduced<br />

release and measurement<br />

(EFIRM) as a novel platform for liquid<br />

biopsy (LB) which enables the diagnosis<br />

of early-stage non-small-cell lung<br />

cancer (NSCLC) when surgical cure is<br />

still possible. The EFIRM-liquid biopsy<br />

(eLB) accurately detects two actionable<br />

epidermal growth factor receptor<br />

(EGFR) mutations seen in the blood of<br />

patients with early-stage NSCLC. The<br />

study showed specific detection of two<br />

specific EGFR mutations- p.L858R and<br />

Exon 19del. The scientists collected<br />

plasma samples from 248 patients with<br />

suspected lung cancer, of which 44<br />

were diagnosed with Stage I or Stage<br />

II NSCLC. EFIRM was able to detect the<br />

p.L858R mutation in 11 of 12 samples<br />

and the Exon 19del mutation in seven of<br />

nine samples, resulting in greater than<br />

90 percent sensitivity and 80 percent<br />

specificity. The clinical sensitivity of<br />

EFIRM to detect patients with early-stage<br />

NSCLC is limited by the percentage of<br />

tumours containing either or both of the<br />

two variants, which is estimated at 27<br />

percent of NSCLC tumours. The research<br />

suggests more studies to be performed<br />

to optimize the technical and clinical<br />

performance of the assay which once<br />

validated can be useful in screening<br />

and for many other high-throughput<br />

applications.<br />

The Journal of Molecular Diagnostics, November<br />

<strong>2018</strong>, Volume 20, Issue 6, Pages 738–742 /<br />

https://doi.org/10.1016/j.jmoldx.<strong>2018</strong>.06.008/<br />

ctDNA shows promise<br />

for monitoring<br />

paediatric glioma<br />

Panditharatna E. et al shows early<br />

evidence in proper monitoring of<br />

EGF receptors drive hair cell<br />

formation in mice cochlea<br />

paediatric diffuse midline gliomas (DMGs)<br />

using liquid biopsy. The researchers<br />

indicate the study to be the first to<br />

focus on the clinical utility of circulating<br />

tumour DNA (ctDNA) for longitudinal<br />

surveillance of DMGs in children. The<br />

assay quantified the levels of a mutation,<br />

H3K27M, which is known to be present<br />

in over 70 percent of patients with DMG<br />

correlating with a poorer clinical outcome.<br />

The study reported the identification of<br />

H3K27M in pre-treatment samples from<br />

42 of the 48 patients, a frequency that<br />

is comparable to what is seen in tissue<br />

samples showing cerebral spinal fluid to<br />

exhibit the presence of more mutated<br />

DNA, overall, than blood. Researchers<br />

observed a significant decrease in ctDNA<br />

in a subset of children with Diffuse<br />

Intrinsic Pontine Glioma (DIPG) who had<br />

liquid biopsy testing before and after<br />

radiation treatment in a clinical trial.<br />

Researchers also reported an agreement<br />

Zhang et al outlined a new approach<br />

in restoring hearing loss by activating<br />

ERBB2 pathway, which could enable the<br />

regeneration of sensory hair cells found<br />

in the cochlea of the inner ear. Their<br />

research was based on the hypothesis<br />

that signaling from epidermal growth<br />

factor receptor (EGF) family of receptors<br />

could play a role in cochlear regeneration<br />

in mammals. Thus, the study focused on<br />

activating a specific receptor ERBB2 of<br />

the EGF family by constitutively activating<br />

the receptor in neonatal mouse cochlear<br />

supporting cells using viruses, transgenic<br />

expression and also by using certain<br />

drugs which are known to activate<br />

ERBB2 signalling. The researchers<br />

found that activating the ERBB2<br />

pathway triggered a cascading<br />

series of cellular events by which<br />

cochlear support cells began to<br />

proliferate and activate the neighbouring<br />

stem cells to become new sensory<br />

hair cells. The study thus suggests a<br />

new model where the interplay of cell<br />

signalling regulates regeneration by<br />

endogenous stem-like cells.<br />

European Journal of Neuroscience 30<br />

September <strong>2018</strong> doi: 10.1111ejn.14183/<br />

of 75 percent between ctDNA response<br />

(a 50 percent decrease or more) and MRI<br />

tumour volume measurements (at least<br />

10 percent decrease). The liquid biopsy<br />

approach thus provides a molecularly<br />

based tool for tumour characterization<br />

helping doctors to monitor how well<br />

treatments are working in children with<br />

DMGs.<br />

Source: American Association for Cancer Research,<br />

October 15, <strong>2018</strong>/ DOI: 10.1158/1078-0432.CCR-<br />

18-1345 /<br />

Editing of mtDNA<br />

may correct genetic<br />

disorder<br />

Payam A. Gammage et al reported the<br />

first in vivo successes in using zinc<br />

finger nucleases (ZFN) for selectively<br />

editing away pathogenic mitochondrial<br />

56 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


DNA (mtDNAs) in a heteroplasmic<br />

mammalian mitochondrial population.<br />

They demonstrated the correction of a<br />

cardiac-specific mitochondrial disorder<br />

with the concomitant therapeutic<br />

restoration of molecular and biochemical<br />

hallmarks to an undiseased state by<br />

exploiting a recently developed mouse<br />

model that recapitulates common<br />

molecular features of heteroplasmic<br />

mtDNA disease in cardiac tissue.<br />

Each of the two ZFN proteins used<br />

was systemically delivered to the<br />

mouse via a cardiotropic version of<br />

the adenovirus. The research offers a<br />

potential therapeutic route for treatment<br />

of heteroplasmic mitochondrial disease<br />

using programmable nucleases, where<br />

amelioration or halting of disease<br />

progression could be expected. Though<br />

the development has the potential<br />

to transform the prospects of many<br />

patients with mitochondrial disease, the<br />

researchers suggest for further work to<br />

be executed to enable the translation of<br />

these tools into effective medicines.<br />

Nature Medicine (<strong>2018</strong>)/ https://www.nature.com/<br />

articles/s41591-018-0165-9 /24 September <strong>2018</strong><br />

CRISPR-mediated<br />

prenatal metabolic<br />

gene editing<br />

C. Rossidis et al performed the first<br />

A. prenatal gene editing to prevent a<br />

lethal metabolic disorder in mice models,<br />

offering the potential to treat human<br />

congenital diseases before birth. The<br />

scientists used CRISPR-Cas9 and base<br />

editor 3 (BE3) gene editing tools in utero<br />

to reduce cholesterol levels in a wildtype<br />

mice. They also used prenatal gene<br />

editing to improve liver function and<br />

prevent neonatal death in a subgroup<br />

of mice that had been engineered<br />

with a mutation causing the lethal liver<br />

disease hereditary tyrosinemia type 1<br />

(HT1). Adenovirus vectors were used<br />

for the delivery of CRISPR-Cas9 and<br />

BE3. Scientists observed a long-term<br />

postnatal persistence of edited cells in<br />

both models with reduced cholesterol<br />

levels and rescue of the lethal phenotype<br />

of HT1 following in utero gene targeting<br />

in respective mice models. Thus the<br />

research offers proof-of-concept for the<br />

prenatal use of a sophisticated, lowtoxicity<br />

tool in efficient gene editing<br />

that helps point to a potential new<br />

therapeutic approach in treating selected<br />

congenital genetic disorders.<br />

Nature Medicine, Volume 24, pages1513–1518<br />

(<strong>2018</strong>) https://www.nature.com/articles/s41591-<br />

018-0184-6/ 8th October <strong>2018</strong><br />

Protein marker<br />

indicates breast<br />

cancer recurrence<br />

Borgen et al identified a protein<br />

E. marker that can indicate the<br />

chances of reoccurrence and lethality<br />

of metastatic cancer in breast cancer<br />

patients. The researchers found a<br />

correlation between the low amounts<br />

of a protein NR2F1 (COUP-TF1) in bone<br />

marrow (BM) aspirations of patients<br />

whose breast cancer tumour had<br />

metastasized to BM and had led to<br />

sudden demise. Patients who had high<br />

concentrations of NR2F1 in the cancer<br />

cells in their bone marrow, however,<br />

did not frequently develop this type of<br />

metastatic cancer and survived longer.<br />

The presence of high concentration of<br />

NR2F1 was found related to dormancy<br />

of the disseminated tumour cells (DTC).<br />

Thus NR2F1 detection in BM DTCs may<br />

be a promising tool to determine the<br />

phenotype of DTCs and the prognosis of<br />

breast cancer patients. The study<br />

paves the way for testing new<br />

treatments that prevent metastasis<br />

by inducing dormancy or eradicating<br />

the dormant disseminated cancer cells<br />

that have not yet initiated metastatic<br />

growth. The researchers suggest that<br />

markers such as NR2F1 coupled with<br />

DTC genetics and other host-derived<br />

indicators may provide a breakthrough<br />

in the management of minimal<br />

residual disease (MRD) and metastasis<br />

prevention.<br />

Breast Cancer Research<strong>2018</strong> https://doi.<br />

org/10.1186/s13058-018-1049 /16 October <strong>2018</strong><br />

Metarrestin slows<br />

spread of ovarian<br />

cancer<br />

novel anti-cancer drug, ML246<br />

A (metarrestin), reveals its ability to<br />

attenuate the growth and progression<br />

of ovarian cancer. The study conducted<br />

by Kanis et al reports for the first time<br />

on the effects of ML246, an inhibitor of<br />

the perinucleolar compartment (PNC),<br />

in ovarian cancer cells. PNCs were<br />

detected in the human ovarian cancer<br />

cell lines, SKOV3 and OVCAR3, which<br />

were treated with ML246 for its invasive<br />

activity in vitro and was tested for its<br />

efficacy on tumour growth and spread<br />

in xenograft mice models in vivo. The<br />

results showed a remarkable decrease<br />

in the invasive ability of ovarian cancer<br />

cell lines and attenuated the growth of<br />

tumour in human xenografts of ovarian<br />

cancer which reduced the abdominal<br />

spread of the xenografts. The study<br />

data demonstrate ML246 is as effective<br />

as cisplatin in inhibiting ovarian cancer<br />

growth and thus suggests its utility in<br />

platinum-resistant disease. These data<br />

warrant additional investigation into<br />

the therapeutic potential of ML246 for<br />

ovarian cancer as well as its mode of<br />

action while showing PNC structure as<br />

a potential reliable target in treating<br />

ovarian cancer.<br />

Source: Gynecologic Oncology Research and<br />

Practice<strong>2018</strong>5:7 2nd October <strong>2018</strong> https://doi.<br />

org/10.1186/s40661-018-0064-2 /<br />

—Compiled by Divya Choyikutty<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 57


column<br />

trialomics<br />

Medical devices as<br />

healthcare tools<br />

Diagnostic devices are required to generate robust clinical<br />

evidence to stand scientific scrutiny<br />

DR ARUN BHATT<br />

Writer is a consultant<br />

on clinical research &<br />

development from<br />

Mumbai.<br />

arun_dbhatt@hotmail.com<br />

Today, medicine has become highly<br />

specialised and technology-driven,<br />

leading to the widespread use of<br />

medical devices as diagnostic and therapeutic<br />

healthcare tools. This has led to the rapid<br />

growth of the medical device industry. A<br />

medical device is different from a drug,<br />

as it acts by physical interaction with body/<br />

body part and the outcome depends on<br />

the skill or experience of the clinician or<br />

the technician. Hence, there are separate<br />

international and Indian regulations for<br />

medical devices.<br />

A medical device is any instrument,<br />

apparatus, appliance, software, material or<br />

any other article used in human beings for a)<br />

diagnosis, prevention, monitoring, treatment<br />

or alleviation of disease or alleviation of or<br />

compensation for an injury or handicap, b)<br />

investigation, replacement or modification of<br />

the anatomy or of a physiological process, or<br />

c) control of conception.<br />

For regulatory approval purpose, medical<br />

devices are classified by risk assessment<br />

based on:<br />

• Intended purpose<br />

• Duration of continuous use<br />

• Transient - less than 60 minutes<br />

• Short term - not more than 30 days<br />

• Long-term - more than 30 days<br />

• Invasiveness<br />

• Critical anatomical locations - central<br />

circulatory system, central nervous system<br />

• Active medical devices<br />

As such, medical devices could be<br />

1) non-invasive - stethoscopes, syringes,<br />

wound dressings, hemodialyser; 2) invasive<br />

- lancets, tracheal tubes, cardiac catheters,<br />

coronary stents, contraceptive devices, joint<br />

replacement prosthesis; 3) active - hearing<br />

aids, MRI, nebulizers dental implants; 4)<br />

special category - drug-eluting stents,<br />

contraceptive intrauterine devices, biological<br />

heart valves, blood bags; 5) In vitro diagnostic<br />

medical devices for detecting transmissible<br />

agents - HIV , blood grouping or tissue typing,<br />

and self-testing – glucometer.<br />

A device which is invasive or for long-term<br />

continuous use or used in critical anatomic<br />

location or is active carries a higher risk.<br />

The risk categories are:<br />

• Class A Low Risk: e.g. surgical gauze, sterile<br />

plasters<br />

• Class B Low-Moderate: e.g. hearing aids,<br />

ultrasonic diagnostic equipment<br />

• Class C Moderate-High: e.g. infusion<br />

pumps, ventilators, surgical lasers, dental<br />

implant<br />

• Class D High: e.g. many implants,<br />

replacement heart valves, pacemakers<br />

Classification of the device provides a<br />

practical, economic, and feasible approach<br />

to decide which category requires rigorous<br />

regulatory evaluation. Indian medical devices<br />

rule 2017 mandate regulatory approval<br />

requirements for all device categories.<br />

These requirements describe submission<br />

requirements for technical information, quality<br />

documentation and clinical evidence. Clinical<br />

evidence studies include those that look at 1)<br />

Pilot Preliminary Safety and Performance in<br />

a few patients; 2) Pivotal Efficacy and Safety/<br />

Adverse Effects in a larger number, and 3)<br />

Postmarketing long-term safety. The higher<br />

the risk category, the greater the regulatory<br />

requirement for data and clinical evidence.<br />

The development and marketing of a<br />

medical device or a diagnostic medical device<br />

require critical attention to technology, quality<br />

and the scientific challenges of generating<br />

robust clinical evidence.<br />

58 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


policy<br />

MENTAL HEALTH CARE ACT 2017<br />

TAKING OUT<br />

THE STIGMA<br />

Notwithstanding the<br />

new law, experts feel<br />

protecting the rights of<br />

the mentally ill will be<br />

an uphill task<br />

The Mental Health Care Act<br />

2017, which came into force in<br />

May this year, is set to make<br />

drastic changes in the treatment of<br />

psychological disorders. The Act, hailed<br />

as one of the most progressive pieces<br />

of legislation on mental health care in<br />

the world, entitles mentally ill patients<br />

to humane treatment and assures<br />

them the right to access mental health<br />

care. As per the Act, every person<br />

shall have the right to access mental<br />

health care and treatment from mental<br />

health services run or funded by the<br />

government. It entitles patients to<br />

access affordable and quality mental<br />

60 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


health services without any kind<br />

of discrimination. The Act has also<br />

decriminalised suicide attempts by<br />

mentally ill people.<br />

“The Act is a phenomenal, rightsbased<br />

approach, a game-changer in<br />

mental health care and one of the<br />

best health legislations in the world. It<br />

is an ideal and aspirational legislation,”<br />

observed Dr. Suresh Bada Math,<br />

Professor of Psychiatry at the National<br />

Institute of Mental Health and Neuro<br />

Sciences (NIMHANS)<br />

Upholding the legislation,<br />

Dr. Mala Kapur Shankardass,<br />

Sociologist, Gerontologist, Health and<br />

Development Social Scientist and<br />

Associate Professor, Dept. of Sociology<br />

at Delhi’s Maitreyi College, said: “The<br />

Mental Healthcare Act is a good<br />

legislation which is very much required<br />

in the country for better outreach to<br />

affected people”.<br />

Upholding rights<br />

The Act directs the government<br />

to make sufficient provision for<br />

providing a range of services required<br />

by persons with mental illness. It<br />

directs the government to ensure<br />

the availability of minimum mental<br />

health services run or funded by the<br />

government in each district. Patients<br />

should not be made to travel long<br />

distances to access mental health. If<br />

it is not available in the district where<br />

a person with mental illness resides,<br />

the person is entitled to access any<br />

other mental health service in the<br />

district and the cost of treatment will<br />

be borne by the government. It directs<br />

the government to make necessary<br />

budgetary provision for the effective<br />

implementation of the Act.<br />

“It is a rights-based legislation.<br />

Hence it is the responsibility of the<br />

state to provide mental health care.<br />

But do all the states have the political<br />

will and the financial commitment<br />

to implement the Act? Considering<br />

various constraints like poor human<br />

resources, it may take time to set<br />

up and receive the funds that are<br />

warranted to ensure its effectiveness<br />

– which is why the impAct of the law<br />

INDIA’S MENTAL DISEASE BURDEN<br />

Despite increasing incidence of mental disorders the<br />

economic impact of it is yet to be quantified<br />

38<br />

million<br />

have anxiety<br />

disorders<br />

IT IS A RIGHTS-BASED<br />

LEGISLATION. HENCE IT IS<br />

THE RESPONSIBILITY OF<br />

THE STATE TO PROVIDE<br />

MENTAL HEALTH CARE.<br />

BUT DO ALL THE STATES<br />

HAVE THE POLITICAL<br />

WILL AND THE FINANCIAL<br />

COMMITMENT TO<br />

IMPLEMENT THE ACT?<br />

may not be immediate and may not be<br />

seen in the near future,” said Dr. Math.<br />

The Act also stipulates the criteria<br />

for the admission, treatment and<br />

discharge of mentally ill people. An<br />

adult patient can be admitted only<br />

if the patient has mental illness of a<br />

severity requiring admission, is likely<br />

to benefit from the admission and<br />

has the capacity to make decisions<br />

regarding admission and treatment.<br />

All admissions in the mental health<br />

establishment shall, as far as possible,<br />

56<br />

million<br />

Indians suffer<br />

from depression<br />

7.5%<br />

Indians suffer from<br />

major or minor<br />

mental disorders<br />

that require expert<br />

intervention<br />

}<br />

A mental health<br />

survey found that<br />

the incidence of<br />

depression is roughly<br />

1 20 in<br />

Indians<br />

SOURCE: WHO AND NIMHANS<br />

be independent admissions except<br />

when such conditions exist as to make<br />

supported admission unavoidable.<br />

An independent patient shall not be<br />

given treatment without his informed<br />

consent. The independent patient<br />

can discharge themselves without<br />

the consent of the medical officer.<br />

However, the patient can be made to<br />

stay in the hospital for 24 hours if the<br />

mental health professional feels that<br />

the patient has impaired decisionmaking<br />

capacity, poses a risk to self or<br />

others and is incapable of self-care.<br />

Disorder criteria: A drawback?<br />

Though the Act focuses on the rights<br />

of patients, it is comes with lots<br />

of regulations and related control.<br />

“The rights of the mentally ill should<br />

be protected, but the numerous<br />

mechanisms involved may create<br />

more stigma to the patients. The<br />

main drawback of the Act is that the<br />

patients who do not meet the criteria<br />

of ‘substantial disorder with gross<br />

impairments’ for mental illness cannot<br />

be admitted even if they are keen to<br />

do so and their doctor is willing to<br />

provide treatment. It poses a violation<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 61


of the right of individual to seek<br />

treatment in the most appropriate<br />

setting. Even though the criteria<br />

for admission are described, the<br />

mental health review board does<br />

not have the power to review such<br />

admissions,” said Dr. John C. J., Senior<br />

Consultant, Psychiatrist, Medical Trust<br />

Hospital.<br />

In case of the admission of minors,<br />

the nominated representative of a<br />

minor, usually the legal guardian,<br />

needs to apply for admission. Two<br />

professionals — two psychiatrists or<br />

one psychiatrist and one mental health<br />

professional — need to independently<br />

assess and conclude that the minor<br />

has a mental illness of the severity<br />

requiring admission, that it is in the<br />

best interest of the minor and that<br />

all community-based interventions<br />

are unsuitable or have failed. The<br />

admission of a minor should be<br />

reported to the mental health review<br />

FOR SUPPORTED<br />

ADMISSION UNDER THE<br />

ACT, TWO PROFESSIONALS<br />

SHOULD INDEPENDENTLY<br />

EXAMINE THE PATIENT IN<br />

THE PRECEDING SEVEN<br />

DAYS.<br />

board within seven days and if the<br />

minor remains in the hospital for<br />

more than 30 days, the mental health<br />

review board should be informed<br />

immediately. When the board is<br />

informed about the hospital stay of<br />

a minor exceeding 30 days, it must<br />

review the concerned minor within<br />

seven days.<br />

For supported admission under<br />

the Act, two professionals — one<br />

psychiatrist and one mental health<br />

professional — should independently<br />

examine the patient in the preceding<br />

seven days and independently<br />

conclude that the mental illness is<br />

severe. Both professionals must certify<br />

that admission is the least restrictive<br />

option available and the patient’s<br />

capacity to make mental health care<br />

treatment decisions is impaired. If<br />

the patient requires hospital stay in<br />

excess of 30 days, the patient must<br />

be independently examined by two<br />

psychiatrists at any time during the<br />

preceding seven days. They should<br />

independently conclude that the<br />

patient meets severity criteria, and<br />

that admission is the least restrictive<br />

option and that the patient’s capacity<br />

to make decisions about mental health<br />

treatment is impaired.<br />

Dearth of resources<br />

Even as the Act gives utmost<br />

62 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


importance to the right of patients,<br />

the implementation of the Act poses<br />

a challenge for the authorities. “The<br />

challenges exist in trying to reach<br />

out to rural and illiterate populations<br />

and and those residing in areas<br />

where mental health care services are<br />

limited. The problem is about raising<br />

awareness regarding the Act and how<br />

it is an empowering tool. It has to be<br />

implemented properly and people<br />

must understand its uses,” said Dr.<br />

Mala Kapur Shankardass.<br />

Dr. Suresh Bada Math observed<br />

that the main challenge is the abysmal<br />

number of trained mental health<br />

human resources when compared with<br />

the prevalence of mental disorders,<br />

which are mind-boggling in numbers.<br />

“Though approximately 10 crore<br />

people require mental health, only<br />

7,000 (approximately) psychiatrists are<br />

available. The mental health human<br />

resources numbers in the public health<br />

sector are very meager, considering<br />

the rights-based mental health care<br />

[approach] and the number of people<br />

requiring attention. To fill this human<br />

resources gap, we may require 20<br />

years or more,” he said<br />

Dr Math said the current mental<br />

health budget is very minimal, while<br />

the required budget is at least Rs<br />

3,000 crore per month just for<br />

treatment. “At present, there are only<br />

a few rehabilitation centers in the<br />

public sector. The non-availability of<br />

halfway homes, long-stay homes,<br />

supported accommodation, sheltered<br />

accommodation, vocational rehab<br />

centers and the lack of daycare<br />

centers are the uphill tasks faced by<br />

governments in implementing the<br />

Act,” he said . He added that the<br />

government has been proactive and<br />

has taken a number of initiatives, such<br />

as <strong>digital</strong> academies at NIMHANS, CIP<br />

Ranchi and at LGB institute, Tezpur.<br />

The aim of these academies is to<br />

exponentially increase human resources<br />

for mental health care. Dr. Math<br />

emphasized that, considering the large<br />

treatment gap, all stakeholders need to<br />

work for a long time before the dream<br />

of the Act can be fully realized.<br />

MHA 2017 pledges right<br />

to live with dignity<br />

The long-awaited legislation<br />

empowers a person with<br />

mental illness and his nominated<br />

representative to access information<br />

on the provisions of the Act, the<br />

nature of mental illness, the proposed<br />

treatment plan and the known side<br />

effects of the proposed treatment<br />

plan in a language he can understand.<br />

The Act also extends the right<br />

to confidentiality, access to medical<br />

records, legal aid and the right to<br />

make complaints about deficiencies in<br />

the provision of services.<br />

The Act pledges the right to<br />

community living for the patients and<br />

to not put them in a mental health<br />

establishment merely because the<br />

patient does not have a family, is not<br />

accepted by his family or is homeless,<br />

or due to the absence of communitybased<br />

facilities.<br />

It promises the right to live with<br />

dignity and protection from cruel,<br />

inhuman and degrading treatment<br />

in any mental health establishment<br />

and the right to equality and nondiscrimination.<br />

As per the provisions<br />

of the Act, every person with mental<br />

illness shall be treated as equal to<br />

persons with physical illness.<br />

It directs every insurer to make<br />

provision for medical insurance for<br />

treatment of mental illness on the<br />

same basis as is available for<br />

treatment of physical illness.<br />

The Act directs the<br />

government to plan, design<br />

and implement programmes<br />

for the promotion of mental<br />

health and the prevention<br />

of mental illness in the<br />

country. The Act puts the<br />

onus on the government to<br />

take appropriate steps to<br />

address the human resource<br />

requirements of mental health<br />

services in the country.<br />

The Act proposes setting up a<br />

Central Mental Health Authority and<br />

State Mental Health Authorities in<br />

each state. The central authority shall<br />

be responsible for the registration of<br />

all mental health establishments under<br />

the control of the central government<br />

and shall maintain a register of all<br />

the mental health establishments in<br />

the country. It will also be responsible<br />

for training all persons, including<br />

law enforcement officials, mental<br />

health professionals and other health<br />

professionals, on the provisions and<br />

the implementation of the Act. The<br />

state authority will perform similar<br />

duties at the state level. The Act also<br />

proposes the constitution of a Central<br />

Mental Health Authority Fund and<br />

State Mental Health Authority Funds.<br />

According to the Act, no person<br />

or organization shall establish or run a<br />

mental health establishment unless it<br />

has been registered with the authority<br />

under the provisions of the Act.<br />

Another major highlight of<br />

the Act is the provision for the<br />

constitution of Mental Health Review<br />

Boards. Each board shall consist<br />

of a district judge or retired district<br />

judge, a representative of the district<br />

collector, persons with mental illness<br />

or caregivers or persons representing<br />

organisations of persons with<br />

mental illness or caregivers or nongovernmental<br />

organisations working in<br />

the field of mental health.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 63


COPD<br />

technology<br />

EBV INTERVENTION<br />

IN EMPHYSEMA<br />

Endoscopic lung volume reduction using endobronchial valves is an emerging<br />

option for COPD patients<br />

DR GEORGE MOTHI JUSTIN<br />

Chronic obstructive pulmonary<br />

disease (COPD) is characterised<br />

by the presence of bronchitis<br />

and emphysema. The latter process,<br />

due to breakdown of elastic alveolar<br />

tissue, leads to increased lung<br />

compliance and gas trapping. Lung<br />

hyperinflation worsens with exercise,<br />

leading to breathlessness and is<br />

associated with reduced physical<br />

activity and reduced survival. Inhaled<br />

bronchodilator medications have only<br />

modest impact on the symptoms and<br />

do not alter the natural history of the<br />

disease. In selected patients with a<br />

heterogeneous pattern of emphysema,<br />

surgical resection can be targeted at<br />

the worst affected areas of lung tissue<br />

which contribute disproportionately<br />

to gas trapping and hyperinflation,<br />

and improve respiratory mechanics.<br />

Lung volume reduction surgery (LVRS)<br />

improves symptoms and prolongs<br />

survival, but can be associated with<br />

significant morbidity and a risk of<br />

death, with a cost per quality adjusted<br />

life year (QALY).<br />

A more recent approach has<br />

been to instead use endobronchial<br />

valves to occlude the airways<br />

supplying the worst affected part of<br />

the lung. This is intended to cause<br />

a collapse in the target lobe, with<br />

a similar impact on the function of<br />

the rest of the lung as seen in LVRS.<br />

However, atelectasis will only occur in<br />

the absence of significant collateral<br />

ventilation between the<br />

target lobe and the adjacent one.<br />

Because of this, the success rate<br />

of valve placement in early studies<br />

was low, impacting the value of<br />

endobronchial valves as a therapeutic<br />

intervention.<br />

Case series and single-centre<br />

trials have demonstrated that<br />

endobronchial valve treatment in<br />

patients with emphysema can lead<br />

to improvements in symptoms,<br />

lung function and exercise capacity,<br />

reduction in dynamic hyperinflation<br />

and improvements in oxygen<br />

kinetics and chest-wall synchrony.<br />

Moreover, where target lobe<br />

volume loss is seen on CT, a<br />

substantial survival benefit has<br />

been observed, compared with cases<br />

where valve treatment has been<br />

ineffective.<br />

During a bronchoscopic procedure,<br />

endobronchial valves are placed in the<br />

airways to occlude a diseased part of<br />

SINGLE-CENTRE TRIALS<br />

HAVE DEMONSTRATED THAT<br />

ENDOBRONCHIAL VALVE<br />

TREATMENT IN PATIENTS<br />

WITH EMPHYSEMA CAN<br />

LEAD TO IMPROVEMENTS<br />

IN SYMPTOMS.<br />

64 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


ENDOBRONCHIAL<br />

VALVES FOR<br />

LUNG VOLUME<br />

REDUCTION<br />

Endobronchial valves (EBV)<br />

are small implantable<br />

devices. These one-way<br />

valves are implanted in an<br />

airway in the pulmonary<br />

system using a flexible<br />

delivery catheter through a<br />

bronchoscope. This minimally<br />

invasive procedure is used<br />

to treat emphysema and<br />

several other lung conditions.<br />

ZEPHYR<br />

Developed by Pulmonx, the Zephyr device<br />

is an implantable bronchial valve intended<br />

to decrease the volume of targeted regions<br />

of the lung. It is indicated for the treatment<br />

of patients with severe emphysema. The<br />

EBV are placed in the diseased region of the<br />

lung using bronchoscopy. Once implanted,<br />

the one-way valve prevents airflow into the<br />

diseased region, while allowing trapped air<br />

and fluids to escape. Reducing the volume<br />

of the diseased region may allow healthier<br />

regions to expand and function more<br />

efficiently. The Zephyr valve is removable if<br />

found to be not working properly.<br />

The Chartis System and the StratX Lung<br />

Analysis Platform are diagnostic companion<br />

products developed by Pulmonx. They are<br />

designed to identify likely responders and<br />

non-responders to Zephyr valve therapy.<br />

The US FDA granted approval for Zephyr<br />

endobronchial valve in June <strong>2018</strong> based<br />

on positive clinical data from the pivotal<br />

LIBERATE Study and two other multicenter<br />

randomized control trials. The LIBERATE<br />

study found Zephyr EBV provides clinically<br />

meaningful benefits for lung function, exercise<br />

tolerance, dyspnea and quality of life out to<br />

at least 12-months, with an acceptable safety<br />

profile in patients with little or no collateral<br />

ventilation in the target lobe.<br />

According to Pulmonx data, since 2007, more<br />

than 14,000 patients have been treated<br />

with the Zephyr Valve worldwide. Zephyr<br />

Valve treatment is included in emphysema<br />

treatment guidance issued by leading health<br />

organizations, including the Global Initiative<br />

for Chronic Obstructive Lung Disease (GOLD)<br />

and the UK’s National Institute for Health and<br />

Care Excellence (NICE).<br />

SPIRATION<br />

The Spiration Valve blocks incoming breath<br />

from entering damaged portions of the lung,<br />

while it permits trapped air and mucous to<br />

escape the damaged and potentially hyperinflated<br />

lung. That air is redirected to healthier<br />

portions of the lung through the valve without<br />

a pressure fit, allowing secretions to escape<br />

naturally along the bronchial wall. The valve<br />

has an anchoring system and an umbrellashaped<br />

design with 0% migration and<br />

expectoration even in complex airways.<br />

Marketed by Olympus, Spiration valves have<br />

also received the CE mark.<br />

EPIDEMIOLOGY<br />

OF ASTHMA<br />

The disease in adults pose an<br />

enormous health care burden<br />

Estimated the<br />

prevalence of<br />

asthma in India<br />

to be<br />

2.05%<br />

adults aged ≥15 years<br />

National<br />

burden of<br />

asthmatics<br />

18,000,000<br />

SOURCE: Lung India<br />

the lungs and reduce hyperinflation,<br />

allowing the healthier parts of the<br />

lungs to take in more air and work<br />

more effectively. The valves are<br />

designed to be permanent, but can be<br />

removed if necessary.<br />

The most common side effect<br />

associated Zephyr valve treatment<br />

was pneumothorax, which occurred<br />

in roughly one third of the patients.<br />

No intervention was required in about<br />

20% of the incidents; the majority of<br />

the rest of such cases were addressed<br />

with standard medical management.<br />

Other side effects, which occurred<br />

less frequently, included COPD<br />

exacerbation, pneumonia, respiratory<br />

failure and death.<br />

The Zephyr valve is contraindicated<br />

in patients with active lung infections;<br />

those who are allergic to nitinol,<br />

nickel, titanium or silicone; active<br />

smokers; and those who are not<br />

able to tolerate the bronchoscopic<br />

procedure.<br />

The author is Head,<br />

Department of Respiratory<br />

Medicine, Medical Trust<br />

Hospitals, Cochin<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 65


hospital news<br />

Continental Hospital<br />

starts heart failure<br />

clinic in Hyderabad<br />

Hyderabad-based Continental Hospital<br />

has launched a Heart Failure Clinic at<br />

its premises in the city.<br />

The clinic aims to provide advanced<br />

cardiac services to the people suffering<br />

from severe heart-related diseases. The<br />

number of heart failure cases are rising<br />

at an alarming rate in Hyderabad, with<br />

an estimated 15,000 new cases being<br />

registered every year.<br />

The Heart Failure Clinic offers<br />

comprehensive cardiac care services<br />

under one roof. Treatment decisions are<br />

made in a team approach, based on the<br />

medical details of each patient.<br />

The Hospital is equipped with<br />

state-of-the-art technology, including<br />

the implantation of artificial pumps to<br />

support the heart’s functions. Continental<br />

Hospitals is planning to extend the<br />

services with a dedicated outpatient<br />

department and a 24x7 helpline.<br />

Facility for children with<br />

multiple disabilities at Wadia<br />

Boehringer Ingelheim, one of the<br />

world’s leading pharmaceutical<br />

companies, inaugurated a facility for<br />

children with multiple disabilities at Bai<br />

Jerbai Wadia Hospital, Mumbai.<br />

Started in association with Muskan<br />

Foundation, the facility is designed with<br />

the aim of training visually impaired<br />

children who have additional disabilities.<br />

At the Facility, children are trained<br />

to manage their disabilities under a<br />

multi-disciplinary approach. The facility<br />

also focuses on educating parents, who<br />

will receive comprehensive training for<br />

effective management of these children<br />

at home.<br />

A part of the social entrepreneurial<br />

initiative at Boehringer Ingelheim (BI),<br />

the programme in Mumbai intends<br />

to help such children communicate<br />

effectively and develop modification to<br />

their behaviour essential for their daily<br />

routine.<br />

In India, there are 20.42 lakh<br />

disabled children who are aged<br />

between 0 and 6 years. Out of this,<br />

14.52 lakh and 5.9 lakh children live in<br />

rural and urban areas respectively. Of<br />

them, 11.04 lakh are male and 9.38 lakh<br />

female. Among them, 1.49 lakh<br />

children have multiple disabilities,<br />

according to BI.<br />

Jaslok Hospital launches clinic for elderly<br />

Jaslok Hospital and Research Centre<br />

has launched a geriatric clinic at<br />

Peddar Road in Mumbai.<br />

Planned as a one-stop elderly<br />

care centre, the dedicated geriatric<br />

care department will have outpatient<br />

care, in-patient care, emergency care<br />

and home health care. It will offer<br />

physical, cognitive and psychosocial<br />

assessment, a personal care plan,<br />

recommendations to improve health<br />

and functional ability, rehabilitation,<br />

the safe use of medicines and will<br />

address home and emergency care<br />

for the elderly.<br />

According to the Indian<br />

Ageing Report 2017, based on the<br />

2011 Census, the overall old-age<br />

dependency ratio shows that there<br />

are over 14 elderly per 100 working<br />

age persons, out of which 7 are<br />

termed as a dependent.<br />

The proportion of the elderly<br />

is expected to increase from 10.5<br />

percent to 22.4 percent during 2012–<br />

2050, according to estimates.<br />

66 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


insurance<br />

MORE ILLNESSES TO COME<br />

UNDER INSURANCE COVER<br />

The process is on to limit the number of exclusions on<br />

the current list of health policies<br />

Health insurance policies will<br />

soon cover more diseases, with<br />

the Insurance and Regulatory<br />

Authority of India (IRDAI) initiating<br />

the process to minimise the number<br />

of diseases that are not covered<br />

under the health insurance policies at<br />

present.<br />

In order to examine the matter,<br />

the regulator has constituted a tenmember<br />

working committee headed<br />

by Suresh Mathur, Executive Director,<br />

Health, IRDAI. The committee will<br />

examine the exclusions that are<br />

prevalent in health insurance policies<br />

and rationalize the exclusions by<br />

minimizing the number, so as to<br />

enhance the scope of health insurance<br />

coverage<br />

The terms of reference (ToR)<br />

of the working committee include<br />

rationalising the exclusions that<br />

disallow coverage with respect to<br />

new modalities of treatments and<br />

technologically advanced medical<br />

treatments and identifying the type of<br />

THE MOVE WILL BENEFIT<br />

POLICYHOLDERS IN A<br />

GREAT WAY AS THE SCOPE<br />

OF COVER AVAILABLE<br />

UNDER HEALTH INSURANCE<br />

POLICY WILL BE EXPANDED.<br />

exclusions which shall not be allowed.<br />

The committee has also been asked<br />

to study the wordings/language of<br />

the exclusions and standardize the<br />

wordings of exclusions in simple and<br />

easily understandable language, study<br />

the scope for allowing individual<br />

specific and/or ailment/disease specific<br />

permanent exclusions at the time of<br />

underwriting so that policyholders are<br />

not denied health insurance claims<br />

unrelated to the exclusions, and any<br />

other matter relevant to the subject of<br />

exclusions.<br />

Welcoming the move,<br />

Subramanyam Brahmajosyula,<br />

Head of Underwriting and Reinsurance<br />

at SBI General Insurance, said: “We are<br />

broadly supportive of the regulator’s<br />

move to expand the<br />

ambit of health insurance coverage,<br />

both in terms of increasing the<br />

number of people covered, as well as<br />

the various illnesses/diseases for<br />

which coverage is granted under<br />

health insurance policies. This needs to<br />

be viewed as a national priority,<br />

and not purely from the narrow<br />

perspective of any challenges<br />

it might pose to the insurance<br />

industry.”<br />

He added that the move will<br />

benefit policyholders in a great<br />

way as the scope of cover available<br />

under health insurance policy will be<br />

expanded.<br />

Improve penetration;<br />

increase rates<br />

The insurers feel that an enhancement<br />

68 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


in insurance coverage will lead to<br />

greater penetration. “The order<br />

will have implications for both<br />

the consumer and the industry. It<br />

will be beneficial to consumers,<br />

because less exclusion will mean<br />

more coverage for diseases. From<br />

the industry perspective, it will lead<br />

to a higher degree of insurance<br />

penetration, thus more sales,”<br />

said Vaidyanathan Ramani,<br />

Head, Product andInnovation,<br />

Policybazaar.com.<br />

Brahmajosyula also<br />

agreed that the move<br />

will lead to greater awareness of<br />

insurance and improve the penetration<br />

of health insurance in the country.<br />

However, insurance companies<br />

hinted at the possibility of an increase<br />

in policy rates. They said that some<br />

of the conditions which are proposed<br />

to be covered are either partially or<br />

completely excluded under the current<br />

health insurance policy coverage.<br />

“With the enhancement of coverage,<br />

it will be necessary for the insurance<br />

companies to relook at their pricing<br />

in order to cater to the expected<br />

claims from allowing coverage of such<br />

conditions,” said Brahmajosyula.<br />

“The premium may go up<br />

marginally in the long run, because<br />

enhanced coverage will lead to more<br />

claims and hence, the premium will<br />

THE CHALLENGES WOULD<br />

BE TO DEFINE, IN PRECISE<br />

TERMS, WHAT CONSTITUTES<br />

MENTAL ILLNESS TO AVOID<br />

DISPUTES IN THE EVENT<br />

OF CLAIMS, AS WELL AS<br />

COMPILING SUFFICIENT<br />

AND ACCURATE DATA TO<br />

DECIDE THE APPROPRIATE<br />

PREMIUM TO BE CHARGED.<br />

also go up. In spite of this, the order<br />

will impact positively for all those<br />

involved in the insurance business –<br />

the buyer and the seller,” according to<br />

Ramani.<br />

Cover for mental illness?<br />

Meanwhile, in another significant<br />

development, the IRDAI has asked<br />

insurers to make provision for medical<br />

insurance for the treatment of<br />

mental illness on the same basis as is<br />

available for the treatment of physical<br />

illness. The move is set to benefit a<br />

large number of people. The regulator<br />

has issued a circular in this direction<br />

after The Mental Healthcare Act 2017<br />

came into force in May <strong>2018</strong>. The act<br />

has stipulated that every insurer shall<br />

make provisions for the treatment<br />

of mental illness. “The insurance<br />

companies will have to re-price the<br />

products to cater to the coverage<br />

of mental illness. Other associated<br />

challenges would be to define, in<br />

precise terms, what constitutes mental<br />

illness to avoid disputes in the event of<br />

claims, as well as compiling sufficient<br />

and accurate data to decide the<br />

appropriate premium to be charged,”<br />

said Brahmajosyula.<br />

Ramani also welcomed the<br />

decision to cover the treatment of<br />

mental illness under health insurance<br />

policies. “This is a great step for the<br />

country as, with this move, we have<br />

started to accept that mental illness is<br />

a serious affair and needs treatment.<br />

Therefore, medical insurance covering<br />

the same is a great step. Mental<br />

illness will probably be a much<br />

higher risk than physical illness in<br />

the future,” he said. However, he<br />

added, there are a few issues which<br />

are still in the grey, like what are<br />

considered mental illnesses and what<br />

are the degrees of those, with the<br />

recommended treatments attributed to<br />

them. He added that it will be easier<br />

to define fair expenses and procedures<br />

for such treatments if some light was<br />

thrown over these issues, as mental<br />

illness is a very vague and big topic<br />

in itself.<br />

DISEASES PRESENTLY<br />

NOT COVERED*<br />

HIV/AIDS<br />

Infertility<br />

Genetic disorders<br />

Tobacco use and related<br />

complications<br />

Cosmetic surgery<br />

Cataract<br />

Hernia etc.<br />

Mental health<br />

*The list is incomplete. The rules and<br />

regulations vary with different players.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 69


public healh<br />

NOISE<br />

HAZARDS<br />

WHO guidelines for the EU region<br />

provide strong evidence that noise<br />

is one of the top environmental<br />

hazards to both physical and<br />

mental health<br />

70 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


Environmental noise is an<br />

important public health issue,<br />

featuring among the top<br />

environmental risks to health. It has<br />

negative impacts on human health and<br />

well-being and is a growing concern<br />

among both the general public and<br />

policy-makers in Europe.<br />

The WHO Regional Office for<br />

Europe has developed environmental<br />

noise guidelines for the European<br />

Region, proposing an updated set of<br />

public health recommendations on<br />

exposure to environmental noise.<br />

Objectives<br />

The main purpose of these guidelines<br />

is to provide recommendations<br />

for protecting human health from<br />

exposure to environmental noise<br />

originating from various sources:<br />

transportation (road traffic, railway,<br />

and aircraft) noise, wind turbine noise<br />

and leisure noise. Leisure noise in this<br />

context refers to all noise sources<br />

that people are exposed to due to<br />

leisure activities, such as attending<br />

nightclubs, pubs, fitness classes, live<br />

sporting events, concerts or live music<br />

venues and listening to loud music<br />

through personal listening devices.<br />

The following two key questions<br />

identify the issues addressed by the<br />

guidelines.<br />

• In the general population<br />

exposed to environmental noise, what<br />

is the exposure-response relationship<br />

between exposure to environmental<br />

noise (reported as various indicators)<br />

and the proportion of people with a<br />

validated measure of health outcome,<br />

when adjusted for confounders?<br />

• In the general population<br />

exposed to environmental noise, are<br />

interventions effective in reducing<br />

exposure to and/or health outcomes<br />

from environmental noise?<br />

In light of these questions,<br />

the guidelines set out to define<br />

recommended exposure levels for<br />

environmental noise in order to protect<br />

population health.<br />

Methods used<br />

The process of developing the<br />

WHO GUIDELINES<br />

FOLLOWED A RIGOROUS<br />

METHODOLOGY<br />

INVOLVING SEVERAL<br />

GROUPS WITH<br />

SEPARATE ROLES AND<br />

RESPONSIBILITIES.<br />

WHO guidelines followed a rigorous<br />

methodology involving several<br />

groups with separate roles and<br />

responsibilities. Throughout<br />

the process, the Grading of<br />

Recommendations Assessment,<br />

Development and Evaluation (GRADE)<br />

approach was followed. In particular,<br />

the different steps in the development<br />

of the guidelines include:<br />

• formulation of the scope and key<br />

questions of the guidelines;<br />

• review of the pertinent literature;<br />

•selection of priority health<br />

outcome measures;<br />

• a systematic review of the<br />

evidence;<br />

• assessment of certainty of the<br />

bodies of evidence resulting from<br />

systematic reviews;<br />

• identification of guideline<br />

exposure levels; and<br />

• setting of the strength of<br />

recommendations.<br />

Based on the defined scope<br />

and key questions, these guidelines<br />

reviewed the pertinent literature<br />

in order to incorporate significant<br />

research undertaken in the area of<br />

environmental noise and health since<br />

the community noise guidelines and<br />

night noise guidelines for Europe were<br />

issued ..<br />

In total, eight systematic reviews<br />

of evidence were conducted to<br />

assess the relationship between<br />

environmental noise and the following<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 71


health outcomes: cardiovascular and<br />

metabolic effects; annoyance; effects<br />

on sleep; cognitive impairment;<br />

hearing impairment and tinnitus;<br />

adverse birth outcomes; and<br />

quality of life, mental health and<br />

well-being.<br />

A separate systematic review of the<br />

evidence was conducted to assess the<br />

effectiveness of environmental noise<br />

interventions in reducing exposure<br />

and associated impacts on health.<br />

Once identified and synthesized,<br />

EIGHT SYSTEMATIC<br />

REVIEWS OF EVIDENCE<br />

WERE CONDUCTED TO<br />

ASSESS THE RELATIONSHIP<br />

BETWEEN ENVIRONMENTAL<br />

NOISE.<br />

the quality of the evidence of the<br />

systematic reviews was assessed<br />

by the Systematic Review Team.<br />

Subsequently, the Guideline<br />

Development Group (GDG) formulated<br />

recommendations, guided by the<br />

Systematic Review<br />

Team’s assessment and informed<br />

by of a number of additional<br />

contextual parameters. To facilitate<br />

the formulation of recommendations,<br />

WHO RECOMMENDATIONS ON ENVIRONMENTAL NOISE SOURCE<br />

ROAD TRAFFIC NOISE<br />

For average noise exposure, the<br />

GDG strongly recommends reducing<br />

noise levels produced by road traffic<br />

below 53 decibels (dB) L den , as<br />

road traffic noise above this level<br />

is associated with adverse health<br />

effects.<br />

For night noise exposure, the GDG<br />

strongly recommends reducing<br />

noise levels produced by road<br />

traffic during night time below 45<br />

dB L night , as night-time road traffic<br />

noise above this level is associated<br />

with adverse effects on sleep.<br />

To reduce health effects, the<br />

GDG strongly recommends that<br />

policy-makers implement suitable<br />

measures to reduce noise exposure<br />

from road traffic in the population<br />

exposed to levels above the<br />

guideline values for average and<br />

night noise exposure. For specific<br />

interventions, the GDG recommends<br />

reducing noise both at the source<br />

and on the route between the<br />

source and the affected population<br />

by changes in infrastructure.<br />

Strong<br />

RAILWAY NOISE<br />

For average noise exposure, the<br />

GDG strongly recommends reducing<br />

noise levels produced by railway<br />

traffic below 54 dB L den , as railway<br />

noise above this level is associated<br />

with adverse health effects.<br />

For night noise exposure, the GDG<br />

strongly recommends reducing<br />

noise levels produced by railway<br />

traffic during night time below 44<br />

dB L night , as night-time railway noise<br />

above this level is associated with<br />

adverse effects on sleep.<br />

To reduce health effects, the<br />

GDG strongly recommends that<br />

policy-makers implement suitable<br />

measures to reduce noise exposure<br />

from railways in the population<br />

exposed to levels above the<br />

guideline values for average and<br />

night noise exposure. There is,<br />

however, insufficient evidence<br />

to recommend one type of<br />

intervention over another.<br />

Strong<br />

AIRCRAFT NOISE<br />

For average noise exposure, the<br />

GDG strongly recommends reducing<br />

noise levels produced by aircraft<br />

below 45 dB L den ., as aircraft noise<br />

above this level is associated with<br />

adverse health effects.<br />

For night noise exposure, the GDG<br />

strongly recommends reducing<br />

noise levels produced by aircraft<br />

during night time below 40 dB<br />

L night ., as night-time aircraft noise<br />

above this level is associated with<br />

adverse effects on sleep.<br />

72 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


BY SOURCE<br />

To reduce health effects, the<br />

GDG strongly recommends that<br />

policy-makers implement suitable<br />

measures to reduce noise exposure<br />

from aircraft in the population<br />

exposed to levels above the<br />

guideline values for average and<br />

night noise exposure. For specific<br />

interventions, the GDG recommends<br />

implementing suitable changes in<br />

infrastructure.<br />

WIND TURBINE NOISE<br />

For average noise exposure, the<br />

GDG conditionally recommends<br />

reducing noise levels produced by<br />

wind turbines below 45 dB L den , as<br />

wind turbine noise above this level<br />

is associated with adverse health<br />

effects.<br />

No recommendation is made for<br />

average night noise exposure<br />

Lnight of wind turbines. The quality<br />

of evidence of night-time exposure<br />

to wind turbine noise is too low to<br />

allow a recommendation.<br />

To reduce health effects, the<br />

GDG conditionally recommends<br />

that policy-makers implement<br />

suitable measures to reduce noise<br />

exposure from wind turbines in the<br />

population exposed to levels above<br />

the guideline values for average<br />

noise exposure. No evidence is<br />

available, however, to facilitate the<br />

recommendation of one particular<br />

type of intervention over another.<br />

LEISURE NOISE<br />

For average noise exposure, the<br />

GDG conditionally recommends<br />

reducing the yearly average from<br />

all leisure noise sources combined<br />

to 70 dB L Aeq,24h as leisure noise<br />

above this level is associated<br />

with adverse health effects. The<br />

equal energy principle can be<br />

used to derive exposure limits for<br />

other time averages, which might<br />

be more practical in regulatory<br />

processes.<br />

For single-event and impulse noise<br />

exposures, the GDG conditionally<br />

recommends following existing<br />

guidelines and legal regulations to<br />

limit the risk of increases in hearing<br />

impairment from leisure noise in<br />

both children and adults.<br />

Following a precautionary approach,<br />

to reduce possible health effects,<br />

the GDG strongly recommends that<br />

policy-makers take action to prevent<br />

exposure above the guideline<br />

values for average noise and singleevent<br />

and impulse noise exposures.<br />

This is particularly relevant as a<br />

large number of people may be<br />

exposed to and at risk of hearing<br />

impairment through the use of<br />

personal listening devices. There<br />

is insufficient evidence, however,<br />

to recommend one type of<br />

intervention over another.<br />

strong<br />

conditional<br />

the GDG first defined priority health<br />

outcomes and then selected the<br />

most relevant health outcome<br />

measures for the outcomes.<br />

Consecutively, a process was<br />

developed to identify the guideline<br />

exposure levels with the help of<br />

the exposure-response functions<br />

provided by the systematic<br />

reviews. To reflect the nature of the<br />

research (observational studies)<br />

underpinning the relationship between<br />

environmental noise and health, the<br />

GRADE procedures were adapted to<br />

the requirements of environmental<br />

exposure studies where needed.<br />

Noise indicators<br />

From a scientific point of view,<br />

the best noise indicator is the one<br />

that performs best in predicting<br />

the effect of interest. There are,<br />

however, a number of additional<br />

criteria that may influence the<br />

choice of indicator. For example,<br />

various indicators might be suitable<br />

for different health end-points. Some<br />

considerations of a more political<br />

nature can be found in the European<br />

Commission’s Position paper on EU<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 73


slug<br />

NOISE POLLUTION:<br />

RISK OF ADVERSE<br />

HEALTH EFFECTS<br />

The guideline document identifies four<br />

priority health outcome measures<br />

and<br />

CARDIOVASCULAR<br />

DISEASE: IHD AND<br />

HYPERTENSION<br />

High-quality epidemiological<br />

evidence described in<br />

the systematic review on<br />

cardiovascular and metabolic<br />

effects of environmental noise<br />

indicates that exposure to road<br />

traffic noise increases the risk<br />

of IHD. The GDG was confident<br />

that health risks resulting from<br />

exposure at an RR increase<br />

in the order of 5–10% in the<br />

incidence of IHD. This is similar<br />

to the reasoning in the WHO<br />

air quality guidelines for fine<br />

particulate matter (PM2.5).<br />

To determine a relevant<br />

risk increase for IHD, the GDG<br />

took as a starting-point the<br />

relative risk (RR) increase<br />

of 5% measured in<br />

epidemiological<br />

studies of<br />

environmental noise<br />

or air pollution.<br />

Taking into account the<br />

incidence of IHD and the<br />

seriousness of the disease,<br />

it considered lowering the<br />

RR increase for IHD to 1%,<br />

as a 5% RR increase might<br />

imply a comparatively high<br />

absolute risk from a population<br />

perspective. To decide on<br />

the final benchmark value<br />

for IHD, several aspects were<br />

considered: the number of<br />

people in a population affected<br />

by IHD; whether health<br />

risks caused by noise would<br />

make up a large part of the<br />

incidence of the disease; other<br />

examples of health risks of<br />

similar magnitude leading to<br />

preventive action. For IHD, in<br />

an average EU country with<br />

20 million inhabitants, an RR<br />

increase of 5% for IHD would<br />

lead to several thousand extra<br />

cases attributable to noise<br />

yearly. This corresponds to<br />

a proportion of cases of IHD<br />

attributable to noise exposure<br />

of less than 10%, which is still<br />

relatively small. After extensive<br />

discussion at the very end of<br />

the guideline development<br />

process, the GDG decided to<br />

adhere to 5% as the relevant<br />

risk increase.<br />

noise indicators (EC, 2000).<br />

The current guidelines are intended<br />

to be suitable for policy-making in<br />

the WHO European Region. They,<br />

therefore, focus on the most used<br />

noise indicators L den and/or L night .<br />

They can be constructed using their<br />

components (L day , L evening , L night<br />

and the duration in hours of L night ),<br />

and are provided for exposure<br />

at the most exposed façade, outdoors.<br />

The L den and L night indicators are<br />

those generally reported by<br />

authorities and are widely used for<br />

exposure assessment in health effect<br />

studies.<br />

Recommendations<br />

Specific recommendations have<br />

been formulated for road traffic<br />

noise, railway noise, aircraft noise,<br />

SPECIFIC<br />

RECOMMENDATIONS HAVE<br />

BEEN FORMULATED FOR<br />

ROAD TRAFFIC NOISE,<br />

RAILWAY NOISE, AIRCRAFT<br />

NOISE, WIND TURBINE<br />

NOISE AND LEISURE NOISE.<br />

wind turbine noise and leisure noise.<br />

Recommendations are rated as either<br />

strong or conditional.<br />

Strength of recommendation<br />

• A strong recommendation can be<br />

adopted as a policy in most situations.<br />

The guideline is based on the<br />

74 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


Hypertension is a common<br />

condition and is an important<br />

risk indicator for IHD and other<br />

cardiovascular diseases. Thus,<br />

the hypertension risk increase<br />

can be transformed into a risk<br />

increase for cardiovascular<br />

disease. To derive a relevant<br />

risk increase, the GDG<br />

focused on the incidence<br />

of hypertension, owing to<br />

the nature and quality of<br />

epidemiological evidence. Since<br />

hypertension is less serious<br />

than IHD, and not all people<br />

with hypertension will progress<br />

to cardiovascular disease, the<br />

relevant risk increase in the<br />

incidence of hypertension<br />

needed to be higher than that<br />

for IHD. Therefore, the GDG<br />

agreed on an RR increase of<br />

10% for hypertension.<br />

SLEEP DISTURBANCE<br />

AND ANNOYANCE<br />

The GDG initially considered<br />

5%HSD and 10%HA due to<br />

noise as relevant absolute<br />

risks, not be exceeded at<br />

the guideline level. After<br />

discussion, however, members<br />

agreed that these absolute<br />

risks were too large since a<br />

considerable proportion of<br />

the population would still<br />

be affected; they decided<br />

to lower the relevant risk<br />

from 5% being highly sleepdisturbed<br />

to 3%. In doing so,<br />

the GDG referred to the WHO<br />

night noise guidelines (WHO,<br />

2009), which concluded that<br />

while there was insufficient<br />

evidence that physiological<br />

effects at noise levels below<br />

40 dB Lnight are harmful to<br />

health,<br />

there were observed<br />

adverse health effects at<br />

levels starting from 40 dB<br />

Lnight. At 40 dB, about 3–4%<br />

(depending on the noise<br />

source) of the population still<br />

reported being highly sleepdisturbed<br />

due to noise, which<br />

was considered relevant to<br />

health. The GDG considered<br />

it important that this level is<br />

consistent with the previous<br />

health-based approach<br />

adopted by the WHO<br />

night noise guidelines, and<br />

agreed that the absolute risk<br />

associated with the guideline<br />

value selected should not<br />

exceed 3%HSD to be health<br />

protective.<br />

For annoyance, which<br />

is considered a less serious<br />

health effect than self-reported<br />

sleep disturbance (as indicated<br />

by the respective DWs),<br />

the relevant risk remained<br />

at 10%HA. This means the<br />

absolute risk associated with<br />

the guideline value selected<br />

should be closest to, but not<br />

above 10%HA, to be health<br />

protective.<br />

COGNITIVE<br />

IMPAIRMENT<br />

Acquiring skills in reading and<br />

oral comprehension at a young<br />

age is important for further<br />

development: a delay in<br />

acquiring these skills can have<br />

an impact later in life. This<br />

impact cannot be predicted<br />

very accurately, but the GDG<br />

considered a delay of one<br />

month a relevant absolute risk.<br />

PERMANENT HEARING<br />

IMPAIRMENT<br />

The literature on hearing<br />

impairment as a result of<br />

occupational noise exposure<br />

is extensive. A noise exposure<br />

level beyond 80 dB during<br />

40 years of working a 40<br />

hour work week can give<br />

rise to permanent hearing<br />

impairment. Given that<br />

environmental exposure to<br />

noise is much lower than these<br />

levels and that noise-related<br />

hearing impairments are not<br />

reversible, the GDG considered<br />

that there should be no risk<br />

of hearing impairment due<br />

to environmental noise and<br />

considered any increased<br />

risk of hearing impairment<br />

relevant.<br />

confidence that the desirable effects<br />

of adherence to the recommendation<br />

outweigh the undesirable<br />

consequences. The quality of evidence<br />

for a net benefit – combined with<br />

information about the values,<br />

preferences and resources – inform<br />

this recommendation, which should be<br />

implemented in most circumstances.<br />

• A conditional recommendation<br />

requires a policy-making process with<br />

substantial debate and involvement<br />

of various stakeholders. There is<br />

less certainty of its efficacy owing<br />

to the lower quality of evidence<br />

of a net benefit, opposing values<br />

and preferences of individuals<br />

and populations affected or the<br />

high resource implications of the<br />

recommendation, meaning there may<br />

be circumstances or settings in which<br />

it will not apply.<br />

Alongside specific<br />

recommendations, several guiding<br />

principles were developed to provide<br />

generic advice and support for the<br />

incorporation of recommendations into<br />

a policy framework. They apply to the<br />

implementation of all of the specific<br />

recommendations.<br />

Guiding principles: reduce,<br />

promote, coordinate and involve<br />

• Reduce exposure to noise, while<br />

conserving quiet areas.<br />

• Promote interventions to reduce<br />

exposure to noise and improve health.<br />

• Coordinate approaches to control<br />

noise sources and other environmental<br />

health risks.<br />

• Inform and involve communities<br />

potentially affected by a change in<br />

noise exposure.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 75


esearch<br />

SEPSIS: PATHOGEN AND<br />

HOST BATTLE<br />

Researchers found that in the onset and progression of sepsis, a protective<br />

mechanism normally present in the host was disabled<br />

SONIA FERNANDEZ<br />

A<br />

major cause of human disability<br />

and death throughout the<br />

world, sepsis is a condition that<br />

begins with an infection, progresses<br />

rapidly and can set off a chain of<br />

effects that result in multiple organ<br />

failure and irreparable damage to the<br />

body.<br />

Because of the condition’s rapid<br />

onset, physicians must respond<br />

immediately to the symptoms<br />

with broad-spectrum antibiotics<br />

for infection, drugs to combat<br />

inflammation and, in the more critical<br />

cases, vasopressors to manage shock.<br />

Because sepsis is so difficult to<br />

detect in its early stages, however,<br />

little has been known about how it<br />

develops. This may explain why no<br />

new effective drugs to treat sepsis<br />

have been developed in decades,<br />

while it remains one of the leading<br />

causes of hospital deaths. Sepsis also<br />

can result in serious disabilities for<br />

those who survive.<br />

Now, researchers at UC Santa<br />

Barbara, Sanford Prebys Medical<br />

Discovery Institute (SBP) in La Jolla,<br />

California, and UC San Diego have<br />

developed a method for tracking, on<br />

a molecular level, the development<br />

of sepsis. Their resulting discoveries<br />

could, in turn, lead to more advanced<br />

76 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


therapies for sepsis that reduce its<br />

mortality, minimise the lifelong effects<br />

for survivors or even prevent the<br />

cascade of life-threatening effects<br />

before it begins, while reducing the<br />

billions of dollars spent every year to<br />

treat the condition.<br />

Their paper, “Accelerated Aging and<br />

Clearance of Host Anti-inflammatory<br />

Enzymes by Discrete Pathogens Fuels<br />

Sepsis” is published in the journal Cell<br />

Host & Microbe.<br />

“Sepsis is generally thought of as<br />

one singular disease, especially as<br />

it enters late stages,” said UC Santa<br />

Barbara biology professor Jamey<br />

Marth, who is the director of the<br />

campus’s Center for Nanomedicine,<br />

in addition to being a professor at<br />

SBP. “At this point, inflammation,<br />

and coagulopathy have caused the<br />

vascular and organ damage common<br />

to severe sepsis and septic shock. Our<br />

comparative approach to monitor the<br />

onset and progression of sepsis at the<br />

molecular level supports the view that<br />

there are different molecular pathways<br />

in sepsis depending on host responses<br />

to different pathogens.”<br />

New sepsis model<br />

In contrast to previous experimental<br />

models of sepsis, which typically<br />

release multiple and incompletely<br />

identified pathogens into the<br />

bloodstream, Marth and his team<br />

developed a more quantitative<br />

method that tracked the pathogen<br />

and host over time, beginning with<br />

infection. This method generated a<br />

reproducible protocol that allowed<br />

the scientists to map host responses,<br />

in this case to five different human<br />

pathogens representing common<br />

strains and isolates from different<br />

patients.<br />

In the study, Marth’s team found<br />

that in the onset and progression of<br />

sepsis caused by Salmonella or E. coli,<br />

a protective mechanism<br />

normally present in the host was<br />

disabled. The mechanism that the<br />

bacteria used included a means to<br />

accelerate the molecular aging and<br />

clearance of two anti-inflammatory<br />

alkaline phosphatase (AP) enzymes,<br />

called TNAP and IAP, which are<br />

normally present in the host<br />

bloodstream.<br />

This was achieved through<br />

pathogen activation of the host’s own<br />

Toll-like receptor-4 (TLR-4), and both<br />

pathogens were thus able to induce<br />

inflammatory compounds and reduce<br />

the likelihood of host survival. The<br />

scientists found that boosting the<br />

level of protective anti-inflammatory<br />

AP activity or using neuraminidase<br />

inhibitors to block the downstream<br />

IT’S POSSIBLE THAT SEPSIS<br />

IS SIMILAR TO CANCER, IN<br />

THAT WE NOW KNOW THAT<br />

CANCER IS A NOT A SINGLE<br />

DISEASE BUT REPRESENTS<br />

HUNDREDS OF DISEASES AT<br />

THE MOLECULAR LEVEL.<br />

effect of TLR-4 activation on NEU1<br />

and NEU3 induction were both<br />

highly therapeutic approaches as<br />

inflammatory markers were reduced<br />

and host survival increased —<br />

indicating a potential direction for drug<br />

development.<br />

“It has been known that AP<br />

isozymes can reduce inflammation<br />

in the context of some diseases and<br />

pathogens — indeed AP is currently in<br />

clinical trials focused on inflammatory<br />

diseases, including colitis and sepsis,”<br />

said Won Ho Yang, Ph.D., lead author<br />

and a senior scientist in the Marth<br />

laboratory at both UCSB and SBP.<br />

“This study shows that the pathogen is<br />

interacting with the host to disable a<br />

protective response. The findings also<br />

demonstrate how both pathogen and<br />

host battle each other by altering the<br />

rates of protein aging and clearance<br />

— which itself is a newly discovered<br />

regulatory mechanism we recently<br />

reported that controls the half-lives of<br />

proteins in the blood.”<br />

In contrast, these responses<br />

weren’t seen in infections caused<br />

by other bacteria tested, including<br />

methicillin-resistant Staphylococcus<br />

aureus (MRSA) and Streptococcus<br />

pneumoniae. The different host<br />

responses, in this case, appeared<br />

divided between Gram-positive<br />

and Gram-negative bacteria, which<br />

describes the existence or the absence<br />

of an inflammatory compound found<br />

on Gram-negative strains.<br />

“We are continuing to map and<br />

compare host responses to different<br />

pathogens in sepsis, using state-ofthe-art<br />

technical approaches, and<br />

hope to ultimately stratify the<br />

disease,” said Marth, who is the<br />

Professor of Biochemistry and<br />

Molecular Biology at UC Santa Barbara,<br />

as well as the Mellichamp Chair of<br />

Systems Biology.<br />

“It’s possible that sepsis is similar<br />

to cancer, in that we now know that<br />

cancer is a not a single disease but<br />

represents hundreds of diseases at the<br />

molecular level.”<br />

Research on this project was also<br />

conducted by Douglas M. Heithoff,<br />

Peter V. Aziz, Benjamin Haslund-<br />

Gourley and Michael J. Mahan, SBP<br />

and UC Santa Barbara; Julia S.<br />

Westman, Sonoko Narisawa, Anthony<br />

B. Pinkerton and José Luis Millán, SBP;<br />

and Victor Nizet, M.D., UC San Diego.<br />

The research was supported by<br />

National Institutes of Health (NIH)<br />

Heart, Lung, and Blood Institute (HLBI)<br />

grants HL125352 and HL131474.<br />

Additional support was provided<br />

by the Swedish Research Council<br />

2017-00192 and the Wille Family<br />

Foundation.<br />

—Reproduced with permission<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 77


orthopaedics<br />

REPAIRING<br />

ROTATOR CUFF<br />

Rotator cuff tear should be treated<br />

aggressively to prevent its return<br />

DR. ADITYA SAI KADAVKOLAN<br />

The shoulder is a ball and socket<br />

joint formed between the upper<br />

end of the arm bone and the<br />

shoulder blade. It is surrounded by<br />

a group of muscles called the<br />

rotator cuff; there are in all four<br />

muscles that constitute the<br />

rotator cuff group. The muscles<br />

form fibrous structures called<br />

tendons, which insert into the<br />

bone. The muscle has a very<br />

good blood supply whereas<br />

the tendons have a poor<br />

blood supply and that<br />

has implications in injury healing.<br />

The function of the rotator cuff<br />

muscles is two fold:<br />

Movement of the shoulder joint<br />

Stabilization of the shoulder joint<br />

The rotator cuff muscles glide<br />

under a bone called the acromion,<br />

which is an extension of your shoulder<br />

blade. In any population, there are<br />

broadly three variants of the acromion:<br />

a) Flat b) Curved c) Congenitally<br />

abnormal or hooked.<br />

Abnormal acromion morphology or<br />

conditions called scapular dyskinesia<br />

can cause increased contact between<br />

the acromion and the rotator cuff,<br />

leading to tendinitis or tear.<br />

Injuries like a fall on an<br />

outstretched hand or a fall on the<br />

shoulder can also lead to rotator cuff<br />

tears.<br />

Symptoms<br />

• Pain<br />

• Pain in the night<br />

• Difficulty in reaching behind the back<br />

or reaching for the top shelf<br />

Stiffness<br />

Many a time, shoulder pain due to<br />

rotator cuff tears is misdiagnosed as a<br />

frozen shoulder. A frozen shoulder, per<br />

se, is an entity where there is a global<br />

restriction in shoulder movement in<br />

spite of the absence of any muscle<br />

tear or any cartilage related issues.<br />

A rotator cuff tear has a poor<br />

tendency to heal as discussed<br />

previously because of a poor blood<br />

supply to the tendon.<br />

Treatment<br />

Surgical repair of acute / post-injury<br />

78 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


otator cuff tears has been shown<br />

to have excellent results and is the<br />

preferred line of treatment. Due<br />

to advances in technology, these<br />

procedures can be done through<br />

arthroscopic surgery, which restores<br />

the normal biomechanical function<br />

of the shoulder joint. With good<br />

physiotherapy and rehabilitation,<br />

individuals are able to get back to<br />

normal levels of function at the end of<br />

a certain period of time.<br />

For rotator cuff tears that are a<br />

result of impingement or abnormal<br />

morphology of the acromion or caused<br />

by an abnormal shoulder posture,<br />

an initial trial of a non-operative<br />

treatment can be given, with careful<br />

observation of shoulder function over<br />

a period of 3 months. If there is no<br />

improvement in symptoms over a<br />

period of time, then surgical treatment<br />

is a better option.<br />

Non-surgical treatment essentially<br />

consists of physiotherapy and<br />

rehabilitation; there is no role for<br />

medicines in rotator cuff tears other<br />

than to control the pain. Physiotherapy<br />

and rehabilitation improve the<br />

shoulder biomechanics and the intact<br />

tendons compensate for the deficient<br />

rotator cuff. However, it does not<br />

lead to a healing of rotator cuff tears.<br />

Physiotherapy and rehabilitation<br />

can improve shoulder function to a<br />

percentage of normal, but cannot<br />

entirely restore normal function and<br />

also need periodic follow up. Moreover,<br />

there’s a risk of the disease worsening<br />

in the future. Rotator cuff tears can<br />

become bigger and tendon/muscle<br />

quality can deteriorate, precluding a<br />

surgical repair.<br />

Neglected rotator cuff tears can<br />

lead to an increase in the size of<br />

the muscle tear and destabilize the<br />

shoulder joint over a period of time<br />

in what is called cuff tear arthropathy.<br />

Individuals with these issues are not<br />

able to lift the arm above the shoulder<br />

level. Some individuals develop what<br />

is termed a pseudoparalysis where,<br />

although no paralysis is present, they<br />

are not able to move the shoulder due<br />

to deficient muscle function.<br />

SUPERIOR RECONSTRUCTION<br />

TORN<br />

IRREPARABLE<br />

CUFF<br />

NEGLECTED ROTATOR CUFF<br />

TEARS OVER A PERIOD<br />

OF TIME CAN LEAD TO AN<br />

INCREASE IN THE SIZE OF<br />

THE MUSCLE TEAR AND<br />

DESTABILIZE THE SHOULDER<br />

JOINT, WHAT IS CALLED<br />

CUFF TEAR ARTHROPATHY.<br />

This is a very problematic issue<br />

with regard to the shoulder joint and<br />

hence some surgeons suggest a more<br />

aggressive approach in the treatment<br />

of rotator cuff tears to prevent<br />

advanced disease.<br />

In case of massive rotator cuff<br />

tears, which are not repairable, we<br />

have two options:<br />

In younger individuals or patients<br />

less than 60 years of age, two options<br />

are generally employed to preserve<br />

the shoulder joint:<br />

a) Muscle transfers: Other<br />

functioning muscles around the<br />

shoulder girdle are substituted to aid<br />

the rotator cuff function.<br />

b) Superior reconstruction, in which<br />

the patient’s tissue from thigh/allograft<br />

tissue is introduced into the joint to<br />

stabilize the shoulder and create a<br />

new rotator cuff.<br />

These procedures can be done on<br />

SUPERIOR<br />

CAPSULAR<br />

RECONSTRUCTION<br />

WITH GRAFT<br />

selected individuals who are willing<br />

to participate in the postoperative<br />

rehabilitation programme.<br />

In individuals above 60 years of<br />

age who have massive rotator cuff<br />

tears and presence of what is known<br />

as cuff tear arthropathy, the only<br />

surgical option that gives fair result<br />

is inverse shoulder replacement. It is<br />

called inverse because the relationship<br />

between the ball and socket part of<br />

the shoulder joint is reversed; this<br />

negates the need for a functioning<br />

rotator cuff to move the shoulder.<br />

There are several treatment options<br />

available for management of rotator<br />

cuff tears, ranging from physiotherapy<br />

to rotator cuff repair to a shoulder<br />

replacement. The most important takehome<br />

message for these problematic<br />

issues is that neglecting a rotator cuff<br />

tear may come back to haunt you<br />

later; so it is better to be watchful<br />

and to be more aggressive with the<br />

treatment and participate<br />

in the rehabilitation programme<br />

actively. If treated surgically at an<br />

early stage, these interventions yield<br />

excellent results.<br />

The author is Consultant,<br />

Arthroscopy, Sports<br />

Medicine & Shoulder<br />

Surgery at Dr. LH<br />

Hiranandani Hospital,<br />

Powai, Maharashtra<br />

80 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


devices&gadgets<br />

Leica introduces<br />

microsurgery microscope<br />

Leica Microsystems has launched<br />

Provido, a multidisciplinary microsurgery<br />

microscope.<br />

Provido features FusionOptics<br />

technology that gives depth of field and<br />

detail perception at the same<br />

time. The illumination technology<br />

brings light even to deep and narrow<br />

cavities. Having the full surgical field<br />

visible at once allows for better decision<br />

making and limits interruptions from<br />

readjusting the microscope. The surgeon<br />

can focus on progressing smoothly<br />

through the procedure, according to the<br />

company.<br />

Deep and narrow channels are a daily<br />

challenge in many surgical disciplines,<br />

particularly spine and otolaryngology. The<br />

microscope integrates concentrated 300<br />

W xenon light and specially-designed<br />

Small Angle Illumination that helps limit<br />

peripheral shadows. As a result, surgeons<br />

are able to see more of the surgical field<br />

without constantly refocusing or adjusting<br />

the light. In addition, there is no longer any<br />

limitation when longer surgical instruments<br />

are required as Provido offers 600 mm of<br />

free working space.<br />

The electromagnetic brakes and<br />

balancing system enables the Provido to be<br />

positioned at the required angle with the<br />

lightest touch. For even greater precision,<br />

micro adjustments can be achieved with<br />

the XY joystick control.<br />

SpineEX lateral<br />

lumbar device for<br />

disc disease<br />

S<br />

pineEX, Inc, a medical<br />

device company has<br />

received 510(k) clearance<br />

from the US Food and Drug<br />

Administration (FDA) for<br />

its Sagittae lateral lumbar<br />

interbody fusion (LLIF) device.<br />

The LLIF procedure<br />

uses minimally invasive<br />

techniques that approach<br />

the spine from the side of<br />

the patient, allowing for a<br />

larger implant footprint, and<br />

less disruption to lower back<br />

muscles as compared to other<br />

approaches.<br />

This personalized,<br />

expandable device is<br />

designed to minimize<br />

impaction, maximize indirect<br />

decompression, and provide<br />

a large graft space optimal<br />

for lumbar fusion procedures.<br />

It provides up to 8mm of<br />

continuous in situ expansion,<br />

with up to 30° of continuous<br />

in situ lordotic adjustment.<br />

Available in five<br />

sizes,Sagittae provides<br />

several options for surgeons<br />

to address optimal sagittal<br />

balance, while minimizing<br />

burdensome implant inventory<br />

traditionally required for each<br />

procedure.<br />

LLIF devices are indicated<br />

for interbody fusion in<br />

patients with degenerative<br />

disc disease (DDD) at one or<br />

two contiguous levels from<br />

L2 to S1. DDD is defined as<br />

back pain of discogenic origin<br />

with degeneration of the disc<br />

confirmed by history and<br />

radiographic studies. These<br />

DDD patients may also have<br />

up to Grade I spondylolisthesis<br />

or retrolisthesis at the involved<br />

82 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


Zeiss laser tech to treat astigmatism<br />

Carl Zeiss Meditec’s<br />

expanding myopia<br />

treatment for patients<br />

with astigmatism received<br />

premarket approval from the<br />

USFDA.<br />

ReLEx Smile utilises a highprecision<br />

femtosecond laser<br />

to create a lenticule inside the<br />

cornea and access incision<br />

in a single treatment step.<br />

Incisions are made through<br />

microscopic-photodisruptions<br />

of tissue, created by ultrashort<br />

pulses. VisuMax laser is the<br />

first femtosecond laser to<br />

receive FDA PMA approval for<br />

the treatment of a refractive<br />

indication in addition to 510k<br />

clearances for LASIK flap,<br />

keratoplasty, and ICR.<br />

The technology behind<br />

Smile was recently featured<br />

in the scientific background<br />

on the Nobel Prize in Physics<br />

<strong>2018</strong>. Dr. Gérard Mourou and<br />

Dr. Donna Strickland were<br />

awarded the Nobel Prize<br />

for his method to generate<br />

high-intensity ultrashort<br />

optical pulses. Their invention<br />

of so-called chirped pulse<br />

amplification is essential to<br />

generate the ultrashort laser<br />

pulses of the Zeiss VisuMax<br />

femtosecond laser system,<br />

according to the company.<br />

Carl Zeiss Meditec AG<br />

is the Medical Technology<br />

Business Group of Zeiss.<br />

level(s). These patients should<br />

be skeletally mature and have<br />

completed six months of<br />

non-operative treatment, the<br />

company said.<br />

Fujifilm launches<br />

endoscopes to<br />

detect GI cancers<br />

Fujifilm India Private Limited<br />

launched a range of novel<br />

image-enhanced endoscopy<br />

products for the detection of<br />

gastro cancers.<br />

Eluxeo 7000 Series<br />

endoscopes have Blue Light<br />

Imaging (BLI)/Linked Colour<br />

Imaging (LCI) technology to<br />

aid early detection of all types<br />

of stomach cancers.<br />

Stomach cancer is the<br />

second-most common cancer<br />

among men and third-most<br />

among females in Asia. The<br />

symptoms and sign of the<br />

stomach cancer are often<br />

reported late when the<br />

disease is already in advanced<br />

stages, and the 5-year survival<br />

rate is less than 30 percent<br />

in developed countries<br />

and around 20 percent in<br />

developing countries.<br />

The company said the<br />

Eluxeo 7000 is targeted for<br />

biopsy and early alarm by<br />

helping obtain high-resolution<br />

images to detect cancers at a<br />

very early stage.<br />

Drug-eluting<br />

stent approved<br />

for PAD<br />

Boston Scientific<br />

Corporation’s drugeluting<br />

vascular stent system,<br />

specifically developed for the<br />

treatment of peripheral<br />

artery disease (PAD), has<br />

been approved by the<br />

US FDA.<br />

The Eluvia stent<br />

utilizes a drug-polymer<br />

combination to provide<br />

sustained release of<br />

the drug paclitaxel for a<br />

one-year timeframe. It is<br />

designed to prevent tissue<br />

regrowth that might otherwise<br />

block the stented artery.<br />

The approval was based<br />

on findings from the IMPERIAL<br />

trial, the first superficial<br />

femoral artery head-tohead<br />

drug-eluting stent trial<br />

evaluating the safety and<br />

efficacy of Eluvia vs Zilver PTX<br />

in 465 patients.<br />

The results of the trial<br />

showed that patients<br />

treated with the Eluvia stent<br />

experienced a significantly<br />

greater 12-month primary<br />

patency of 88.5 percent,<br />

compared to 79.5 percent in<br />

patients treated with Zilver<br />

PTX.<br />

The Eluvia stent system<br />

is built on the Innova<br />

Stent System platform,<br />

a self-expanding nitinol<br />

stent that has been designed<br />

for use in the superficial<br />

femoral and proximal popliteal<br />

arteries, the main arteries that<br />

supply blood to the legs.<br />

Self-fitting OTC<br />

hearing aid<br />

gets nod<br />

The USFDA has cleared<br />

the Bose Hearing Aid,<br />

a self-fitting hearing aid<br />

for individuals 18 years or<br />

older with perceived mild to<br />

moderate hearing impairment.<br />

This hearing aid enables<br />

users to fit, programme and<br />

control the hearing aid on<br />

their own, without assistance<br />

from a health care provider.<br />

The Bose Hearing Aid<br />

is a user-fitted wireless air<br />

conduction hearing aid. Air<br />

conduction hearing aids<br />

work by capturing sound<br />

vibrations through one or<br />

more microphones. The<br />

signal is processed, amplified,<br />

and played back through an<br />

earphone placed in the ear<br />

canal.<br />

Patients can adjust the<br />

hearing aid through a mobile<br />

application on their phone.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 83


This technology enables users<br />

to fit the hearing aid settings<br />

themselves, in real-time and<br />

in real-world environments<br />

without the assistance of a<br />

healthcare professional.<br />

In authorizing marketing<br />

of the Bose device, the FDA<br />

reviewed data from clinical<br />

studies of 125 patients, which<br />

demonstrated that outcomes<br />

with self-fitting of the Bose<br />

Hearing Aid are comparable<br />

on average to those with<br />

professional fitting of the<br />

same device with respect to<br />

the amount of amplification<br />

selected, speech in noise<br />

testing and overall benefit,<br />

the regulatory agency said<br />

announcing the approval.<br />

Neuro imaging<br />

system gets<br />

clearance in US<br />

The US Food and Drug<br />

Administration has<br />

okayed a new imaging<br />

modality augmented reality<br />

(AR) GLOW800 surgical<br />

fluorescence for vascular<br />

neurosurgery.<br />

GLOW800 allows<br />

surgeons to observe<br />

cerebral anatomy in natural<br />

colour, in combination with<br />

ICG (Indocyanine Green),<br />

augmented by real-time<br />

vascular flow in a single image,<br />

with full depth perception.<br />

It provides the surgeon<br />

with a complete view of<br />

anatomy and physiology to<br />

support crucial decisions<br />

and actions during vascular<br />

neurosurgery.<br />

GLOW800 AR<br />

fluorescence is the first of<br />

many imaging modalities that<br />

will be based on the GLOW<br />

AR platform. GLOW AR<br />

modalities can be fully<br />

integrated into the ARveo<br />

<strong>digital</strong> augmented reality<br />

microscope, according to<br />

Leica Microsystems, the<br />

maker of the device.<br />

Certara cloudbased<br />

platform<br />

to help HCPs<br />

Certara has launched<br />

BaseCase Portal cloudbased<br />

platform that allows for<br />

the rapid creation of fullycustomizable<br />

mobile apps that<br />

connect live to mathematical<br />

models and algorithms, and<br />

help HCPs optimize treatment<br />

for individual patients.<br />

BaseCase Portal<br />

enables clinicians to use<br />

Boston Scientific launches kidney stone<br />

retrieval device<br />

Boston Scientific Corporation has<br />

launched LithoVue Empower Retrieval<br />

Deployment Device, designed to be used<br />

with the ureteroscope.<br />

The device comes with a compatible<br />

nitinol retrieval basket to enable urologists<br />

to operate a ureteroscope and basket<br />

simultaneously when retrieving kidney<br />

stones via flexible ureteroscopy (URS).<br />

According to Boston Scientific, until<br />

now, urologists have traditionally relied<br />

on another person to operate the basket<br />

used to collect kidney stones during kidney<br />

complex scientific models<br />

and algorithms that were<br />

previously only available in<br />

research settings, to guide<br />

therapeutic decision-making.<br />

The platform keeps a strict<br />

separation between the user<br />

interface and the underlying<br />

mathematical model. This<br />

offers many benefits over<br />

the old way of doing things<br />

in which algorithms typically<br />

were hardwired into a<br />

website. On BaseCase Portal,<br />

algorithms and models can be<br />

validated and updated much<br />

more easily.<br />

BaseCase Portal also<br />

features embedded version<br />

control and release workflows,<br />

and provides an audit trail,<br />

allowing a new version of an<br />

app to be uploaded as soon<br />

as it receives the requisite<br />

stone retrieval. Turning a two-person<br />

stone basketing procedure into a singleperson<br />

procedure provides greater control<br />

for the surgeon, decreasing the risk of<br />

miscommunication during stone basketing<br />

without compromising time.<br />

Retrieving kidney stones is one of<br />

the most time-consuming steps during<br />

ureteroscopy procedures, making this<br />

an opportune area to improve physician<br />

control, address communication/<br />

coordination challenges and identify time<br />

savings, says Boston Scientific.<br />

84 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


AUGUST <strong>2018</strong>/ FUTURE MEDICINE / 85


legal and regulatory approvals.<br />

Besides precision dosing<br />

apps, BaseCase Portal can also<br />

be used for diverse purposes<br />

such as providing education<br />

and facilitating collaboration.<br />

Examples include apps that<br />

provide product information,<br />

inform on guidelines and<br />

treatment pathways, and track<br />

the progress of global studies.<br />

As BaseCase Portal is a<br />

white label solution, it can be<br />

tailored to reflect each clients’<br />

brand identity, Certara informs.<br />

BTG launches<br />

cryoablation<br />

system<br />

BTG plc has announced the<br />

global launch of the ICEfx<br />

Cryoablation System. ICEfx,is<br />

an updated version of the<br />

existing Visual ICE system is<br />

designed for interventional<br />

radiologists who want to<br />

offer their patients minimally<br />

invasive treatment options.<br />

It allows physicians to<br />

provide safe and efficient<br />

cryoablation procedures,<br />

facilitating precise and<br />

effective treatment without<br />

the need for surgery or<br />

repeated radiation treatments.<br />

The advanced cryoablation<br />

technology is currently<br />

supporting a number of active<br />

clinical research studies in<br />

bone, kidney, lung, pain, and<br />

prostate, the company said.<br />

BTG Interventional<br />

Oncology delivers IO ablation<br />

solutions across multiple<br />

physician specialties.<br />

Stent to seal<br />

coronary artery<br />

tears cleared<br />

The US FDA has cleared PK<br />

Papyrus Covered Coronary<br />

Stent System, a device to<br />

treat acute coronary artery<br />

perforations or tears in the<br />

blood vessels of the heart.<br />

A coronary artery<br />

perforation can occur during<br />

Percutaneous Coronary<br />

Guide XT system for<br />

visualization of DBS<br />

Guide XT System for<br />

visualization of deep<br />

brain stimulation (DBS)<br />

was launched in Europe,<br />

said Boston Scientific<br />

Corporation.<br />

The Guide XT System<br />

is built for directionality<br />

that utilizes patientspecific<br />

anatomy and<br />

stimulation field modeling.<br />

This technology provides<br />

physicians with 3-D image<br />

planning capability and<br />

when used in conjunction<br />

with the Vercise DBS<br />

Systems, enables physicians<br />

to personalise and optimise<br />

DBS treatment.<br />

DBS treats movement<br />

disorder symptoms in<br />

patients with Parkinson’s<br />

disease, dystonia or essential<br />

tremor. The procedure<br />

stimulates a targeted<br />

Intervention (PCI) procedures.<br />

The PK Papyrus Stent<br />

System is a balloonexpandable<br />

covered coronary<br />

stent and delivery system.<br />

The device is advanced into<br />

the perforated coronary<br />

artery vessel using a balloon<br />

catheter, similar to the<br />

one used during the PCI<br />

procedure. Once the PK<br />

Papyrus stent is implanted,<br />

it provides a physical barrier<br />

to seal the tear in the artery<br />

wall while still allowing<br />

region of the brain through<br />

implanted leads that are<br />

powered by a device called<br />

an implantable pulse<br />

generator (IPG).<br />

The Guide XT System<br />

automatically detects<br />

the location of the<br />

leads, implanted by a<br />

neurosurgeon, in the<br />

imaging of the brain.<br />

Following the implant, a<br />

clinician programmes a<br />

patient’s device and the<br />

Guide XT System can be<br />

used to help visualize<br />

the stimulation field and<br />

efficiently determine the<br />

most appropriate settings for<br />

each patient.<br />

Guide XT was developed<br />

in partnership with<br />

Brainlab AG, a softwaredriven<br />

medical technology<br />

company.<br />

blood to flow through the<br />

device to the heart muscle.<br />

Successful sealing of a<br />

coronary perforation with the<br />

PK Papyrus Covered Coronary<br />

Stent System can be a lifesaving<br />

procedure without the<br />

need for open-heart surgery.<br />

The FDA reviewed realworld<br />

survey data from<br />

80 patients who received<br />

PK Papyrus stents to treat<br />

coronary artery perforations.<br />

PK Papyrus stents were<br />

successfully delivered to the<br />

perforation site in 76 of the<br />

80 patients (95 percent), and<br />

the device successfully sealed<br />

the perforation in 73 patients<br />

(91.3 percent), according to<br />

US FDA.<br />

Micro pump for<br />

Parkinson’s gets<br />

CE mark<br />

Sensile Medical AG, a<br />

Swiss medical technology<br />

company, said its wearable<br />

micro pump has received CE<br />

certification from EU.<br />

The micro pump is<br />

designed to be used in<br />

the treatment of advanced<br />

Parkinson’s disease. The<br />

handy-sized, discreet<br />

pump has got easy to use<br />

features such as automatic<br />

filling with liquid medicine.<br />

Technologies such as colour<br />

display, charging unit and data<br />

storage help enhance therapy<br />

management.<br />

A personally<br />

programmable basal profile<br />

enables treatment to be<br />

optimized for Parkinson’s<br />

patients and ensures that they<br />

receive the precise dosage<br />

they need. Likewise for the<br />

bolus rate: A patient can<br />

cause the device to deliver<br />

a bolus at just one touch of<br />

a button. Sensile’s patented<br />

SenseCore micro rotary<br />

piston pump in the device<br />

ensures safe, precise drug<br />

delivery, eliminating flow rate<br />

calculations.<br />

86 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


events<br />

MVR CANCON<strong>2018</strong> debates transition<br />

in cancer diagnosis and treatment<br />

Leading oncologists thrash out advances in GI, lung, breast and gynaec cancers<br />

DIVYA CHOYIKUTTY<br />

The first <strong>edition</strong> of International<br />

Oncology Conference-MVR CANCON<br />

<strong>2018</strong> — organized by MVR Cancer<br />

Care and Research Institute with the<br />

theme “Consensus and Controversies<br />

in Oncology” — highlighted the<br />

latest therapeutic advances such as<br />

immunotherapy.<br />

The three-day CME, which concluded<br />

at MVRCCRI Campus at Kozhikode on<br />

30thSeptember <strong>2018</strong>, was held with the<br />

support of expert faculty from Cleveland<br />

Clinic, USA. The conference involved<br />

interactive sessions on current and<br />

emerging treatment options and research<br />

in oncology, with special emphasis on<br />

gastrointestinal tract, breast, lung and<br />

gynaec-oncological tumours.<br />

“Our main aim behind organizing this<br />

conference was to give clinical updates<br />

on various cancers through specialists<br />

and scientists from around the world and<br />

to make them cognizant of and be able<br />

to implement the knowledge through<br />

their practice,” said Dr. Narayanankutty<br />

Warrier, Medical Director and organizing<br />

chairperson at MVR Cancer Research<br />

Center.<br />

PHOTO: SHIJITH<br />

Our aim was to give clinical<br />

updates on various cancers<br />

to help clinicians implement<br />

the knowledge through their<br />

practice.<br />

Dr. Narayanankutty Warrier,<br />

Organising chairperson, CANCON<br />

and Medical Director at MVR Cancer<br />

Research Center.<br />

Oncology experts from various<br />

disciplines shared their views on how<br />

the recent advances in genomics and<br />

molecular genetics are transforming<br />

cancer diagnosis and treatment<br />

approaches .<br />

“Until a decade or so ago, when a<br />

patient got cancer at a particular location,<br />

he got treated for that cancer, while<br />

now we have moved on to treating<br />

that cancer based on the mutation<br />

in a particular receptor. So essentially,<br />

we have moved from an anatomical<br />

definition of the disease to a biological<br />

definition,” said Dr. Kurt A Schalper,<br />

Pathologist at Yale University, while<br />

discussing the advancements that<br />

precision medicine has brought about in<br />

the landscape of cancer treatment.<br />

Breast cancer is historically<br />

considered to be immunologically silent.<br />

However, several preclinical and clinical<br />

studies suggest that immunotherapy<br />

has the potential to improve clinical<br />

outcomes for patients with breast cancer.<br />

“We haven’t seen all the data yet,<br />

but it appears that the first approval for<br />

immunotherapy in breast cancer will<br />

be in combination with chemotherapy.<br />

Whether this is the best way to use<br />

immunotherapy remains to be seen. It<br />

may be active by itself or in combination<br />

with other classes of drugs as well,” says<br />

Dr. Thomas Budd, Professor of Medicine,<br />

Cleveland Clinic.<br />

Talking about the lack of mandatory<br />

screening procedures that can lead to<br />

advanced-stage lung cancer consultation<br />

scenario, Dr. Rejiv Rajendranath,<br />

Consultant Oncologist at Apollo Medical<br />

Center, indicated the necessity of<br />

incorporating low-dose CT scan as an<br />

opportunistic screening technique among<br />

the high-risk individuals to help diagnose<br />

lung cancer at an early stage.<br />

A proffered paper session, an annual<br />

quiz test, a workshop coordinated by<br />

radiation therapy technologists and a<br />

palliative care programme were other<br />

highlights of the symposium. Two young<br />

doctors, who were adjudged to have<br />

come up with the best oral and poster<br />

presentation, were given the opportunity<br />

for a one-month observership at<br />

Cleveland Clinic, USA.<br />

88 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


events<br />

8th NGBT calls for greater awareness<br />

on genomics amongst clinicians<br />

Over 800 delegates from India and abroad attend the three-day meet at Jaipur<br />

The 8th annual NGBT Conference<br />

held at Jaipur emphasised the<br />

urgent need for bringing greater<br />

awareness on genomics among Indian<br />

medical and healthcare fraternity.<br />

Genetic science, which holds a critical<br />

role in the emerging healthcare<br />

scenario, is still nascent in the<br />

country, and the key reason is a lack<br />

of awareness among the healthcare<br />

providers and seekers.<br />

“Genomics is clearly the future in<br />

the healthcare space, especially when<br />

we need precision care to manage lifethreatening<br />

disorders,” said Dr Sekar<br />

Seshagiri, chair of NGBT Conference,<br />

at the inaugural meet of the three-day<br />

science event held from September<br />

30 to October 2, <strong>2018</strong>. “The science<br />

directly impacts the cost of healthcare<br />

positively by providing insights to<br />

deliver personalized care to patients.”<br />

NextGen Genomics, Biology,<br />

Bioinformatics and Technologies<br />

(NGBT), organised by SciGenom<br />

Research Foundation, a not-for-profit<br />

organization dedicated to promoting<br />

PHOTOS: UMESH GOSWAMI<br />

Snakebite<br />

cure<br />

-A revisit<br />

One of the key highlights of <strong>2018</strong><br />

Conference was the "Live and Let<br />

Live: Snakebite Cure Symposia" that<br />

brought together experts on snakes and<br />

snake bite with a mission to find better<br />

treatments for snake bites.<br />

Dr. Manjunatha Kini, NUS, Singapore,<br />

organised a special symposium with the<br />

theme ‘Live and Let Live’.<br />

“Snake venoms are complex mixtures<br />

of lethal and pharmacologicallyactive<br />

proteins and polypeptides that<br />

contribute to both immobilization and<br />

digestion of prey. The study of venom<br />

proteins has expanded not just our<br />

understanding of venom toxicity, but also<br />

the knowledge of normal and disease<br />

states in human physiology,” said Kini,<br />

while presenting a paper “From Toxins<br />

to Therapeutics: Contradictory Roles of<br />

Snake Venom Toxins that Destroy Life on<br />

One Hand and Gives Life on the Other”<br />

In many cases, the study of snake<br />

venom has led to the development<br />

of powerful research tools, diagnostic<br />

techniques and pharmaceutical<br />

drugs. In the talk, he highlighted the<br />

contribution of snake venom toxins in the<br />

development of life-saving cardiovascular<br />

drugs.<br />

90 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


science in India through research and<br />

education, was attended by over 800<br />

delegates.<br />

One of the marquee life sciences<br />

conferences organised in India, NGBT<br />

this time had 12 keynote lectures and<br />

80 talks by speakers representing<br />

various scientific organisations from<br />

across the world. It showcased<br />

applications of NextGen sequencing<br />

and genomic technologies for basic<br />

and translational science in various<br />

areas of biology — including human<br />

genetics, drug discovery, clinical<br />

medicine, biomarkers, diagnostics and<br />

animal, plant and agricultural sciences.<br />

It also covered basic biology, cellular<br />

signalling, cancer and plant biology.<br />

“The genomics industry is still at a<br />

nascent stage in India. While genomic<br />

profiling is the way forward for<br />

healthcare, we need to create ample<br />

awareness in the medical community<br />

to leverage its potential,” said Sam<br />

Santhosh, Trustee, SGRF and Founder<br />

& Chairman, MedGenome, a leading<br />

US-India genomic research and<br />

diagnostics organisation.<br />

According to Sam Santhosh, NGBT<br />

conference provides a platform that<br />

brings together accomplished national<br />

and international speakers, thinkers<br />

and thought leaders who shape the<br />

course of scientific discovery, research<br />

and innovation. India, with its huge<br />

biodiversity and genetic pool, can<br />

contribute much more to the world’s<br />

Genomics industry is still<br />

at a nascent stage in India.<br />

While genomic profiling<br />

is the way forward for<br />

healthcare, we need to<br />

create ample awareness<br />

amongst medical community<br />

to leverage its potential.<br />

Sam Santhosh<br />

Trustee, SGRF<br />

genomic database and to the growth<br />

of future medicine.<br />

“The Conference also provides an<br />

environment of exchange of ideas<br />

and provides opportunities for people<br />

to form collaborations, and is an<br />

ideal platform to share knowledge<br />

and find out about the new and<br />

emerging technologies in biology and<br />

biology-enabling technology areas<br />

like genomics. Such forums help in<br />

understanding the real-life challenges<br />

and the ways to address them by<br />

engaging renowned experts from<br />

across the globe,” he added.<br />

NGBT Jaipur was hosted<br />

in collaboration with Toronto<br />

Recombinant Antibody Centre (TRAC),<br />

Canada; Birla Institute of Scientific<br />

Research (BISR), Jaipur; Rajasthan<br />

University of Health Sciences (RUHS),<br />

Jaipur; Eternal Heart Care Centre &<br />

Research Institute (EHCC), Jaipur; SMS<br />

Medical College Hospital (SMSMC),<br />

Jaipur; and Institute of Bioinformatics<br />

(IOB), Bengaluru.<br />

It also featured technology<br />

leaders from institutions like National<br />

University of Singapore, University of<br />

Toronto, University of Montreal, Pacific<br />

Biosciences, MedGenome, Genentech,<br />

Indian Institute of Science, BGI, Centre<br />

for Cellular & Molecular Biology<br />

(CCMB), Johns Hopkins University, 10X<br />

Genomics, Nature Genetics, National<br />

Institute of Biomedical Genomics,<br />

REVOLUTION Medicines and others<br />

from across the world.<br />

Dr. Kuldeep Singh, Director ICAR-<br />

National Bureau of Plant Genetic<br />

Resources, New Delhi, has been<br />

awarded the <strong>2018</strong> SGRF Excellence in<br />

Science Award.<br />

SGRF had also announced over<br />

100 “meeting scholarships” for<br />

students pursuing scientific research.<br />

The recipients of the scholarship were<br />

selected based on abstracts submitted<br />

for the conference.<br />

Using a combined toxicovenomics<br />

and phage display approach, scientist<br />

from the Technical University of<br />

Denmark could develop an experimental<br />

recombinant antivenom based<br />

on a cocktail of fully human antiimmunoglobulin<br />

G (IgG) monoclonal<br />

antibodies that are capable of<br />

neutralising the dendrotoxin mediated<br />

neurotoxicity of Black Mamba whole<br />

venom in a rodent model, said Dr<br />

Andreas H Laustsen of Denmark.<br />

This is the first report on the<br />

development of a fully-human<br />

monoclonal IgGs against animal toxins as<br />

well as the first use of oligoclonal human<br />

IgG mixture experimental snakebite<br />

envenoming,” according to Laustesen of<br />

Technical University of Denmark<br />

Other participants at the symposium<br />

included Kristen Wiley from Kentucky<br />

Reptile Zoo, US; Priyanka Kadam,<br />

Snakebite Healing and Education Society<br />

Maharashtra, India; Ajay Kartik, Madras<br />

Crocodile Bank Trust; Sadanand Raut,<br />

Vighnahar Foundation, Narayangaon,<br />

Maharashtra; Dr. Sekhar Seshagiri,<br />

Genentech, San Fransisco, USA; Dr. Jay<br />

Fox, University of Virginia, Charlottesville,<br />

USA; Dr. Robin Doley, Tezpur University,<br />

Assam; Dr. Viswanath BS, Mysore<br />

University, Karnataka; Dr. Kemparaju K,<br />

Mysore University, Karnataka; Dr. Dev<br />

Sidhu, University of Toronto, Canada;<br />

Dr. Gopi Kadiyala, Kyntox Biotech India<br />

Pvt. Ltd, Banglore and Dr. Omesh Bharti,<br />

Indira Gandhi Medical College, Shimla.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 91


essay<br />

CRISPR/CAS 9- A<br />

POWERFUL GENE<br />

EDITING TOOL<br />

Genome editing represents a potentially effective<br />

means of eliminating the genetic cause of several<br />

diseases<br />

CONFERENCE<br />

<strong>2018</strong><br />

competition<br />

Binata is pursuing Ph.D<br />

from All India Institute of<br />

Medical Sciences (AIIMS),<br />

New Delhi)<br />

binata.marik@gmail.com<br />

BINATA MARIK<br />

CRISPR (Clustered regularly<br />

interspaced short palindromic<br />

repeats)/Cas9 (CRISPR associated<br />

protein 9) mediated genome editing<br />

has emerged as a promising tool for<br />

the correction of genetic disorders.<br />

CRISPR-Cas9 is a part of the adaptive<br />

immune system in bacterial species,<br />

which recognizes foreign DNA and<br />

destroys it. There are various types of<br />

CRISPR-Cas systems in prokaryotes but<br />

only components of type II CRISPR are<br />

employed in genome editing. A CRISPR<br />

array is composed of a series of repeats<br />

interspaced by spacer DNA sequences<br />

derived from invading viral genomes.<br />

The CRISPR immune system protects<br />

bacteria from repeated viral attack via<br />

three basic steps: (a) adaptation, (b)<br />

production of CRISPR RNA (crRNA)<br />

and (c) targeting viral genome. During<br />

this immune response, following the<br />

exposure to invading genetic material<br />

from phages, short fragments of the<br />

foreign DNA are integrated into the<br />

CRISPR repeat-spacer array in the host<br />

chromosome as new spacers, thereby<br />

providing a genetic record of the<br />

previous infection that allows the host<br />

to prevent future invasion by the same<br />

species. Subsequent transcription of the<br />

CRISPR array and enzymatic processing<br />

of precursor-CRISPR transcripts through<br />

endonucleolytic cleavage produce<br />

short mature CRISPR RNAs (crRNAs).<br />

At the 5’ end, the crRNA contains the<br />

spacer, a short segment of RNA that is<br />

complementary to a sequence from the<br />

foreign DNA, and the 3’ end contains a<br />

piece of the CRISPR repeat sequence.<br />

Endonucleolytic cleavage<br />

Upon second or consecutive infections,<br />

the hybridization of crRNA spacer and<br />

complementary foreign DNA sequence<br />

occurs, which triggers sequence-specific<br />

destruction of the foreign DNA or RNA<br />

by Cas nucleases. Cas9, which cleaves<br />

the foreign genetic material, is a large<br />

(1,368-amino-acid) DNA endonuclease. It<br />

is composed of:<br />

1. Two distinct nuclease domains:<br />

HNH and RuvC,<br />

2. Single guide RNA sequence<br />

(sgRNA): A dual RNA sequence made up<br />

of CRISPR-RNA (crRNA) and transcribed<br />

crRNA (tracrRNA).<br />

Cas9 cuts double-stranded DNA<br />

(dsDNA) complementary to 20<br />

nucleotides of guide RNA sequence after<br />

recognizing Protospacer Adjacent Motif<br />

(PAM) sequence. PAM is a component of<br />

viral DNA and is usually composed of 3<br />

base pair (bp) sequence (NAG or NGG).<br />

The PAM sequence of the invading<br />

bacteriophage that Streptococcus<br />

pyogenes Cas9 recognizes as NAG or<br />

NGG, also corresponds to the universal<br />

splice acceptor sequence (AG) and<br />

donor sequences (GG). Therefore,<br />

directing Cas9 to the splice sites which<br />

92 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


will make a double strand break of<br />

DNA can allow deletion of an exon of a<br />

gene containing mutations and thereby<br />

restoring the function of the gene. Thus,<br />

Genome editing with CRISPR/Cas9 has<br />

become a popular genome-editing tool<br />

for correcting or mitigating diseasecausing<br />

mutations. It works by taking the<br />

advantage of the introduction of doublestrand<br />

breaks in DNA at a desired site<br />

in the genome. The DNA break is useful<br />

because it activates the cell’s natural<br />

DNA repair machinery, which significantly<br />

improves the efficiency of introducing<br />

alterations into the genome. Thus,<br />

genome editing makes it simpler to<br />

develop animal models of disease and<br />

possible clinical applications in patients<br />

with genetic disorders. The cell has two<br />

important ways of repairing DNA breaks.<br />

The first method is nonhomologous end<br />

joining (NHEJ), in which the free ends<br />

from the DNA break are simply rejoined.<br />

This method is the default repair<br />

pathway operating in all cells at all the<br />

time. But, NHEJ is an error-prone process<br />

and it can result in the random addition<br />

or deletion of DNA base pairs. Therefore,<br />

NHEJ can introduce frameshift mutations<br />

(deletions and insertions which disrupt<br />

the open reading frame of a gene) into<br />

a targeted gene, thereby disrupting (i.e<br />

knocking out) the function of the gene.<br />

Alternatively, the introduction of 2 DNA<br />

breaks on the same chromosome will<br />

often result in the deletion of entire DNA<br />

base pairs between the DNA breaks. This<br />

principle can be used to delete part of<br />

a gene, a whole gene, or a portion of<br />

a chromosome with many genes. The<br />

second method by which the cell can<br />

repair a DNA break is homology-directed<br />

repair (HDR), which takes place only in<br />

proliferating cells. Homology-directed<br />

repair requires a repair template that<br />

has sequences that is complementary<br />

to the DNA sequence near the site<br />

of the DNA break. If one introduces a<br />

custom-made DNA repair template into<br />

the cell that has matching sequences<br />

but also has the desired alteration, HDR<br />

can use the custom-made template to<br />

stably introduce the alteration into the<br />

genome. But, homology-directed repair<br />

has 3 disadvantages in comparison to<br />

NHEJ. First, HDR requires the delivery of<br />

an extra custom- made template into<br />

the target cells, whereas NHEJ does not.<br />

Second, HDR generally occurs in less<br />

frequently than NHEJ in proliferating<br />

cells. Third, HDR does not occur in nonproliferating<br />

cells, such as postnatal<br />

cardiomyocytes and neurons.<br />

DMD correction<br />

CRISPR-Cas9 has created a revolution<br />

in which researchers around the world<br />

are using the technology for studying<br />

genomic rearrangements and the<br />

progression of cancers or other diseases<br />

and potentially correcting genetic<br />

mutations responsible for inherited<br />

THE LARGE SIZE AND<br />

COMPLICATED STRUCTURE OF<br />

THE DMD GENE CONTRIBUTE<br />

TO ITS HIGH RATE OF<br />

SPONTANEOUS MUTATION.<br />

disorders such as Duchenne Muscular<br />

Dystrophy. This disorder is caused due<br />

to mutations in dystrophin (DMD) gene<br />

and people with this disorder rarely live<br />

past their 20s because they die due to<br />

heart failure. The DMD gene is the largest<br />

known gene in the human genome,<br />

encompassing approximately 2.6 million<br />

base pairs and encoding 79 exons. The<br />

large size and complicated structure<br />

of the DMD gene contribute to its high<br />

rate of spontaneous mutation. There<br />

are ~3000 reported DMD mutations in<br />

humans, which include large deletions<br />

or duplications (~77%), small indels<br />

(~12%), and point mutations (~9%).<br />

Ousterout et al, 2015 deleted the entire<br />

336-kb genomic region flanking exons<br />

45 to 55 in human DMD myoblasts by<br />

guide RNAs targeting introns 44 and 55<br />

to correct multiple hotspot mutations in<br />

the human genome. Young et al, 2016<br />

deleted 725-kb from introns 44 to 55<br />

to restore the dystrophin open reading<br />

frame in multiple DMD patient-derived<br />

induced pluripotent stem cells (iPSCs),<br />

which contain mutations in this region.<br />

To simplify the correction of diverse<br />

DMD mutations by CRISPR/Cas9 gene<br />

editing, Long et al, <strong>2018</strong> identified guide<br />

RNAs capable of skipping the top 12<br />

exons (hotspots), which account for<br />

~60% of DMD patients. They have used<br />

human iPSCs derived three dimensional<br />

engineered heart muscles (3D-EHM) to<br />

check whether the function of patientderived<br />

induced cardiomyocytes (iCMs)<br />

(i.e the contraction of the heart muscle)<br />

has restored after genome editing.<br />

They observed that correcting only a<br />

proportion of cardiomyocytes (30%<br />

to 50%) was sufficient to rescue the<br />

mutant phenotype. Using CRISPR/Cas9<br />

in beagle puppies, Amoasii et al, <strong>2018</strong><br />

have fixed a genetic mutation that<br />

causes Duchenne Muscular Dystrophy.<br />

Researchers injected two 1-month-old<br />

beagle puppies having a mutation with<br />

different doses of a virus carrying the<br />

gene-editing machinery. They measured<br />

dystrophin levels in different muscles<br />

after eight weeks. Levels of the protein<br />

increased in every muscle group that the<br />

team studied, but the effect was variable.<br />

Dystrophin levels in the heart of the<br />

dog receiving the higher dose were 92<br />

percent of what was present in healthy<br />

pups without the mutation, but levels in<br />

the dog’s tongue were only 5 percent<br />

in comparison to normal. Therefore,<br />

these studies suggested that genome<br />

editing represents a potentially effective<br />

means of eliminating the genetic cause<br />

and correcting the muscle and cardiac<br />

abnormalities associated with DMD. One<br />

key concern for the CRISPR/Cas9 system<br />

is specificity because off-target effects<br />

may cause unexpected mutations in<br />

the genome that may lead to cancer.<br />

Several approaches have been reported<br />

to minimize potential off-target effects<br />

and/or to improve the specificity of the<br />

CRISPR/Cas9 system, including titration<br />

of dosage of Cas9 and guide RNA, and<br />

high-fidelity Cas9. Therefore, CRISPR/<br />

Cas9 has proved to be a powerful<br />

tool for genome editing research.<br />

Further optimization and improvement<br />

of this method are needed to meet<br />

the requirements of gene therapy<br />

application.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 93


calendar<br />

Upcoming conferences<br />

<strong>NOVEMBER</strong><br />

1-3 SKULL BASE SURGERY<br />

Annual Conference of Skull<br />

Base Surgery Society of India<br />

(SKULLBASECON)<br />

Ludhiana<br />

UROLOGY<br />

Annual Conference of Urological<br />

Society of India East Zone<br />

Chapter (ACUSIEZC)<br />

Ahmedabadt<br />

TELEMEDICINE<br />

Telemedicon <strong>2018</strong> - 14th<br />

International Conference of<br />

Telemedicine Society of India<br />

Amravati, Andhra Pradesh<br />

10-11 SLEEP APNEA<br />

AOCMF Seminar - Advances in<br />

Sleep Apnea and Orthognathic<br />

Chennai, Tamil Nadu<br />

14-16 RESPIRATORYDRUG<br />

DELIVERY<br />

Respiratory Drug Delivery (RDD)<br />

Asia Conference <strong>2018</strong><br />

Kochi, Kerala<br />

15-18<br />

PAEDIATRIC NEUROLOGY<br />

15th International Child<br />

Neurology Congress<br />

Mumbai, Maharashtra<br />

15-18 IPS<br />

46th IPS National Conference<br />

Mangalore <strong>2018</strong><br />

Mangalore, Karnataka<br />

19-22 PATHOLOGY<br />

International Conference on<br />

Microbiome Research (ICMR)<br />

Pune<br />

22-25<br />

NUCLEAR CARDIOLOGY<br />

American Society of Nuclear<br />

Cardiology (ASNC) Society of<br />

Nuclear Medicine<br />

Chandigarh, Chandigarh<br />

NUCLEAR CARDIOLOGY<br />

Annual Conference of<br />

Cardiological Society of India<br />

Mumbai<br />

25-29 ANAESTHESIOLOGY<br />

Conference of Indian Society of<br />

Anaesthesiologists<br />

Agra<br />

28-29<br />

28-<br />

Dec 1<br />

INFECTIOUS DISEASES<br />

World Congress on Infectious<br />

Diseases and Antibiotics<br />

Bengaluru<br />

GASTROENTEROLOGY<br />

Annual Conference of Indian<br />

Society of Gastroenterology<br />

(CISG)<br />

Ernakulam<br />

29-30 GENOMICS<br />

Next Generation Sequencing in<br />

Clinical Genomics<br />

Bengaluru<br />

29-<br />

Dec 2<br />

30-<br />

Dec 4<br />

OPHTHALMOLOGY<br />

Conference of Vitreo Retinal<br />

Society<br />

Jaipur<br />

BURN INJURIES<br />

19th Congress of the<br />

International Society for Burn<br />

Injuries (ISBI)<br />

Gurugram, Delhi<br />

DECEMBER<br />

4-7 BIOETHICS<br />

World Congress of Bioethics<br />

(WCB)<br />

New Delhi<br />

5-7 BIOETHICS<br />

World Congress Of Bioethics<br />

(WCB)<br />

Bengaluru<br />

7-8 CLINICAL RESEARCH<br />

SCDM India Conferenc<br />

Hyderabad<br />

6-9 RHEUMATOLOGY<br />

IRACON<br />

Guwahati<br />

13-16 NEUROLOGY<br />

Conference of Neurological<br />

Society of India (NSICON)<br />

Jaipur<br />

NEONATOLOGY<br />

Annual Convention of National<br />

Neonatology Forum (NEOCON)<br />

Varanasi<br />

14-16 GYENAECOLOGY<br />

Annual Congress of Indian<br />

Fertility Society (Fertivision)<br />

Kochi<br />

RADIOLOGY<br />

Annual State Conference of the<br />

TN & PY Chapter of IRIA<br />

Chennai<br />

PEDIATRIC UROLOGY<br />

Asia-Pacific Association Of<br />

Pediatric Urologists Congress<br />

(APAPU)<br />

New Delhi<br />

20-23 NEPHROLOGY<br />

Indian Society of Nephrology<br />

Conference (ISNCON)<br />

Bhubaneswar<br />

26-30 SURGERY<br />

Conference of Association of<br />

Surgeons of India<br />

Chennai<br />

JANUARY<br />

4-6 CLINICAL RESEARCH<br />

Joint International Conference<br />

Ahmedabad<br />

NEUROLOGY<br />

Neuro Updates Conference<br />

Chennai<br />

9-11 MENTAL HEALTH<br />

DYUTI International Symposium<br />

on Evidences in Global Mental<br />

Health<br />

Kakkanad<br />

17-19<br />

VENOUS DISEASES<br />

Vaicon<br />

Hyderabad<br />

17-20 DERMATOLOGY<br />

National Conference of Indian<br />

Association of Dermatologists,<br />

Venereologists & Leprologists<br />

Bengaluru<br />

RADIOLOGY<br />

Annual Conference of the<br />

Indian Radiological and Imaging<br />

Association (IRIA)<br />

Chandigarh<br />

23-26 UROLOGY<br />

Annual National Conference of<br />

The Urological Society of India<br />

Bhubaneswar<br />

24-26 GASTRO-ENTEROLOGY<br />

National Conference on Obesity<br />

and Metabolic Surgery Society<br />

of India<br />

Kolkata<br />

24-27 SURGERY<br />

Annual Conference of The<br />

Asociation of Spine Surgeons of<br />

India (ASSICON)<br />

Ahmedabad<br />

25-27 NEUROSURGERY<br />

International Conference on<br />

Complications in Neurosurgery<br />

(ICCN)<br />

Mumbai<br />

30-31<br />

31-<br />

Feb2<br />

ONCOLOGY<br />

International Conference on<br />

Cancer Rehabilitation (CAN-<br />

REHAB)<br />

Mumbai<br />

CRITICAL CARE<br />

Annual National Conference of<br />

Indian Society of Critical Care<br />

Medicine (CRITICARE)<br />

Mumbai<br />

PSYCHIATRY<br />

Annual National Conference of<br />

Indian Psychiatric Society<br />

Lucknow<br />

The announced dates of the conferences may change<br />

94 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


ook review<br />

A REBUTTAL TO<br />

VACCINE NAYSAYERS<br />

BETWEEN<br />

HOPE AND FEAR:<br />

A HISTORY OF<br />

VACCINE AND HUMAN<br />

IMMUNITY<br />

By Michael Kinch<br />

Pp 360 Pegasus Books<br />

Gardasil, a vaccine against cervical<br />

cancer, has been under attack for<br />

some time. The concern is not against<br />

its safety. But people think that the vaccine<br />

encourages promiscuous behaviour among<br />

adolescents: “Now that teenagers know they<br />

are not going to get cervical cancer, they’re<br />

going to be more sexually active.” Gardasil is<br />

simply the latest target of vaccine fears.<br />

The hostility to vaccines is as old as<br />

the history of the vaccine itself. Every<br />

introduction of a new vaccine met with some<br />

sort of skepticism throughout the history.<br />

But the most significant question today<br />

is whether the anti-vaccine movement is<br />

gaining ground. One look at social media<br />

will strengthen this suspicion. Anti-vaccine<br />

messages are certainly outperforming those<br />

from pro-vaccinators with a hefty margin. In<br />

a recent report, the CDC found that<br />

the percentage of 2-year-olds who had<br />

received no vaccinations grew to 1.3%<br />

among those born in 2015, up from 0.9% for<br />

those born in 2011. Supporters of vaccination<br />

are starting to lose, despite overwhelming<br />

evidence on the safety and efficacy of the<br />

technique.<br />

The biggest thing is to get access to the<br />

facts. The real facts, not what you see on<br />

Facebook or Twitter, according to Michael<br />

Kinch, the author of the book - Between<br />

Hope and Fear: A History of Vaccine and<br />

Human Immunity.<br />

Tracing the history of vaccines alongside<br />

the history of deadly pathogens and the role<br />

vaccines have played in human history, the<br />

book shines light on the history of vaccine<br />

hostility too.<br />

In his book, Kinch notes that terrifying<br />

ailments that have threatened humanity<br />

since time immemorial are staging a<br />

comeback, often infecting an unwitting<br />

population that assumes they have already<br />

been protected.<br />

Unfortunately, most of the criticism<br />

against the vaccine are centred around the<br />

unfounded notions about the link between<br />

vaccination and autism. Although all these<br />

arguments have been scoffed at with the<br />

backing of sound science and the safety of<br />

vaccines have been repeatedly underscored,<br />

negative sentiments have been winning the<br />

day. Now, these present very real dangers to<br />

ANTI-VACCINE PROPAGANDA<br />

ORIGINATES OFTEN FROM A<br />

RELATIVELY SMALL NUMBER<br />

OF HIGHLY EDUCATED AND<br />

POWERFUL ELITES, AND NOT<br />

FROM THE INNER CITY OR<br />

RURAL COUNTRYSIDE.<br />

our societies and our families.<br />

Most shockingly, anti-vaccine propaganda<br />

originates often from a relatively small<br />

number of highly educated and powerful<br />

elites, and not from the inner city or rural<br />

countryside. The waves of discoveries of<br />

life-saving vaccines are contrasted with an<br />

irrational rejection by fringe elements in the<br />

public.<br />

But Kinch is optimistic that it may not<br />

be a daunting task to dispel the ignorance<br />

of the vaccine naysayers with the objective<br />

evidence showing that other than clean<br />

water, nothing has saved more human lives<br />

than vaccines.<br />

<strong>NOVEMBER</strong> <strong>2018</strong> / FUTURE MEDICINE / 95


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DON’T RESTRICT YOURSELF<br />

TO ‘DOTCOM’ ERA<br />

PROF. BHASKAR D GOOLAB<br />

Professor, Dept. of Obstetrics & Gynaecology, University of Witwatersrand, Johannesburg<br />

One of the serious concerns about the new<br />

generation in our profession is obviously the<br />

increasing tendency to blindly follow modern<br />

clinical procedures. And, when it occurs at the<br />

cost of patient safety and comfort, it is all the more<br />

worrying.<br />

Completely ignoring time-tested conventional<br />

methods, which are often much safer and better in<br />

given circumstances, is not a good practice even in<br />

the ‘dotcom’ era: A small peep into the past is always<br />

rewarding.<br />

It is a general trend of late that many clinical<br />

procedures get over-mechanised in the name of<br />

sophistication and technological “advancements”.<br />

As we all know, many such trends do not often<br />

contribute to a better clinical outcome, but merely<br />

satisfy the of the promotion of the so-called<br />

sophistication.<br />

For instance, in gynaecological surgeries, the<br />

latest trend is to do every procedure endoscopically;<br />

rather, the young doctors learn it that way.<br />

Endoscopy is certainly a big boon to clinicians as it<br />

has made many surgical procedures easy and less<br />

invasive. In certain cases, it is necessary too. But the<br />

flip side is often an unnecessary cost escalation, and<br />

sometimes, the risks associated with electric powered<br />

scissors and other accessories.<br />

Many conventional procedures, like vaginal<br />

surgeries and bikini line incision etc., are proven to<br />

be much safer and less expensive. These procedures<br />

have been in practice for a very long time and often<br />

proved more comfortable for patients too.<br />

So, it is always good to put the patient at the<br />

centre by giving them the choice. Be wise enough<br />

to admit the good and bad of both the old and the<br />

new, and try to adopt a complementary approach,<br />

looking at what is ultimately good for the patient.<br />

And, don’t just be a ‘dotcom’ doctor.<br />

— As told to CH Unnikrishnan<br />

98 / FUTURE MEDICINE / <strong>NOVEMBER</strong> <strong>2018</strong>


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