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NPPG Newsletter 19 - Neonatal and Paediatric Pharmacists Group

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Editor: Peter Mulholl<strong>and</strong><br />

Pharmacy Department<br />

Southern General Hospital<br />

1345 Govan Road<br />

GLASGOW G51 4TF<br />

Tel: 0141 201 1382<br />

Fax: 0141 201 2996<br />

Email: newsletter@nppg.demon.co.uk<br />

www.nppg.demon.co.uk<br />

<strong>Newsletter</strong> No <strong>19</strong> January 2002<br />

Editorial<br />

A summarised report from the conference<br />

appeared in the UK Pharmaceutical<br />

journal, <strong>and</strong> the Scottish chemists review,<br />

bringing the group to a wider community<br />

pharmacy view within the UK. The full<br />

review will appear in the newsletter over<br />

the next few issues. We still need some<br />

workshops reports back – you know who<br />

you are! The website goes from strength to<br />

strength, with an increase in usage since<br />

the site transferred to SHOW. We now<br />

average 1,700 visitor sessions per month,<br />

nearly 800 unique users each month <strong>and</strong><br />

over 900 documents sessions downloaded<br />

last month. The message board continues<br />

to grow with groups available for PICU,<br />

NICU, Renal, SNAPP <strong>and</strong> general<br />

discussion. If you want to join any of these<br />

groups let me know.<br />

The therapeutic guidelines index page is<br />

one of the popular pages on the site – but<br />

we need more information. Please send me<br />

titles of your protocols.<br />

<strong>NPPG</strong> Conference – Glasgow<br />

September 2001<br />

Welcoming delegates to the conference<br />

JONATHAN BEST (Chief Executive<br />

Yorkhill Trust) spoke of the levels of<br />

deprivation for children in the Glasgow<br />

area <strong>and</strong> how, in partnership with other<br />

services, the health service in initiatives<br />

such as free fruit for primary schools,<br />

free swimming in all health centers for<br />

children <strong>and</strong> oral hygiene services to<br />

nurseries was hoping that early<br />

intervention in child health would lead to<br />

a reduction in adult health problems.<br />

Dr JONATHAN COUTTS (Consultant<br />

Neonatologist, Yorkhill Trust) spoke of<br />

the advances in respiratory management<br />

of premature babies. These advances<br />

have led to a decrease in the number of<br />

babies who develop Bronchopulmonary<br />

Dysplasia (BPD) - defined as being<br />

oxygen dependant at 28 days of age.<br />

The introduction of artificial lung<br />

surfactant has led to a decrease inn lung<br />

disease <strong>and</strong> the main debate over it’s<br />

use now lies in whether to use artificial<br />

or naturally derived drug, <strong>and</strong> whether<br />

it’s use should be prophylactic or as<br />

rescue therapy. New ventilator<br />

techniques, including high frequency<br />

ventilation which optimizes lung inflation<br />

have also been of benefit - better square<br />

waves, shorter inspiratory times.<br />

Treatment can optimize lung inflation,<br />

using high pressures initially to aim for a<br />

low (


chestiness <strong>and</strong> have subtle differences in<br />

exercise intolerance in adulthood.<br />

Premature babies have a high pulmonary<br />

vascular resistance <strong>and</strong> a potential result<br />

of this is the development of Persistent<br />

Pulmonary Hypertension of the Newborn<br />

(PPHN). This is a cardiopulmonary<br />

disorder characterized by systemic<br />

arterial hypoxemia secondary to<br />

elevated pulmonary vascular resistance<br />

with resultant shunting of pulmonary<br />

blood flow to the systemic circulation.<br />

Systemic vasodilators have side effects<br />

<strong>and</strong> are not recommended. The<br />

treatment of choice is inhaled nitric<br />

oxide, which is a natural vasodilator <strong>and</strong><br />

only enters the ventilated alveoli. It is<br />

inactivated by haemoglobin once it<br />

enters the bloodstream. It is easy to give<br />

via a ventilator <strong>and</strong> a portable system is<br />

available for transfer of patients between<br />

hospitals. Extracorporeal membrane<br />

oxygenation (ECMO) is used as rescue<br />

therapy in cases of severe respiratory<br />

failure <strong>and</strong> is currently available in 4<br />

centres in the UK.<br />

complications associated with ECMO<br />

include:<br />

• haemhorrage (due to the need to<br />

heparinise the blood flowing<br />

through the circuit)<br />

• circuit problems<br />

• loss of the carotid artery<br />

long term developmental studies are<br />

awaited<br />

drug therapy tends towards st<strong>and</strong>ard<br />

doses <strong>and</strong> monitor where possible. If<br />

ECMO is not working an alternative is<br />

liquid ventilation using perfluorocarbons.<br />

RSV (Respiratory Syncytial Virus) is a<br />

common cause of bronchiolytis in babies<br />

<strong>and</strong> young children. Healthy infants do<br />

well (mortality < 1%) but high risk<br />

infants can have a mortality up to 30%,<br />

or can suffer long term respiratory<br />

problems. Recently Palivizumab ( a<br />

humanized murine RSV IgG monoclonal<br />

antibody) has been launched for passive<br />

vaccination against this illness.. Studies<br />

have shown it to decrease hospitalisation<br />

<strong>and</strong> ICU admissions, but treatment cost<br />

is expensive at around £3,000 per<br />

patient. In Greater Glasgow strict<br />

adherence to the SPC guidance could<br />

have resulted in an annual cost of over<br />

£2 million. Following a review by<br />

paediatricians <strong>and</strong> pharmacists<br />

treatment criteria were agreed to target<br />

the most vulnerable patients <strong>and</strong> this<br />

was funded by the Health Board. In<br />

addition to vaccination , in the<br />

community parents have to be educated<br />

to the risk of RSV, including the<br />

prevention of cross infection. The role of<br />

ribavirin was queried as to its<br />

effectiveness.<br />

Speaking on the topic of ‘<strong>Neonatal</strong><br />

Surgery - size does matter' CARL DAVIS<br />

(Consultant <strong>Neonatal</strong> Surgeon, Yorkhill<br />

Trust) covered the range of neonatal<br />

conditions treated surgically at Yorkhill<br />

including congenital anomalies (often<br />

multiple) <strong>and</strong> prematurity associated<br />

conditions such as Necrotising<br />

Enterocolitis (NEC). As with respiratory<br />

problems there is a changing pattern if<br />

the diseases to be treated. The<br />

prevalence of neural tube defects<br />

continues to fall, even with the lack of<br />

publicity on the use of folic acid in<br />

women’s press. Many other defects are<br />

picked up ante-natally.<br />

With respect to pain control the use of<br />

epidural analgesia has greatly benefited<br />

neonatal surgery, with resultant<br />

decrease in the need for post operative<br />

ventilation. There still remains, however,<br />

the need to find a suitable agent to<br />

bridge the gap between paracetamol <strong>and</strong><br />

morphine.<br />

<strong>Neonatal</strong> surgery requires a multidisciplinary<br />

team <strong>and</strong> an example of this<br />

is in the treatment of short bowel<br />

disease. Here the aim is to get patients<br />

home, possibly on home TPN. The<br />

pharmacy aseptic unit at Yorkhill<br />

provides, on average, 400TPN days to<br />

the neonatal surgery unit per month.<br />

Enteral feeding is used where possible<br />

<strong>and</strong>, as with healthy babies, ‘breast is<br />

best’.<br />

Congenital diaphragmatic hernia is a<br />

long term in-utero problem which can<br />

result in complications, even after<br />

surgery. An option is the use of in-utero<br />

surgery, but this is still a very emotive<br />

area.. Treatment strategies include<br />

ECMO, but this does not treat the<br />

Page 2


smaller lung, only resting the respiratory<br />

circulation. A possible treatment option<br />

is the use of liquid ventilation with<br />

perfluorocarbons. There have been no<br />

trails to date, only anecdotal data <strong>and</strong><br />

small series reports.<br />

At the AGM of the <strong>NPPG</strong> the decision was<br />

taken that the group would support the<br />

formation of a faculty of <strong>Neonatal</strong> <strong>and</strong><br />

<strong>Paediatric</strong> Pharmacy by the College of<br />

Pharmacy Practice. It is expected that<br />

the faculty will be formed later this year.<br />

The motion was also passed, with just<br />

one vote against, that <strong>NPPG</strong> become a<br />

'company limited by guarantee' with<br />

each member's liability being £1.<br />

Four members of the committee stood<br />

down - Malcolm Partridge, Tony Nunn,<br />

Anne Frankish <strong>and</strong> Vicky Bradnam.<br />

There were 4 nominations for election,<br />

so no election was necessary. At a<br />

subsequent committee meeting over<br />

lunchtime the roles of new chairman <strong>and</strong><br />

treasurer were decided. Details of the<br />

new committee can be found on the<br />

committee pages<br />

At the close of conference James Wallace<br />

praised the contributions of both<br />

Malcolm Partridge <strong>and</strong> Tony Nunn to<br />

<strong>NPPG</strong>. Both had been involved in the<br />

foundation of the group <strong>and</strong> had made<br />

major contributions to the group over<br />

the past 7 years.<br />

Clinical Pearls/Research<br />

The use of sodium benzoate in<br />

asparaginase’s overdose<br />

S. Roy 1 , A. Doloy 1 , S. Djoussa-Kambou 1 ,<br />

F. Legr<strong>and</strong> 2 , F. Brion 1 , A. Rieutord 1<br />

1Service de pharmacie-toxicologie,<br />

²service d’hématologie, Hôpital Robert<br />

Debré AP-HP, Paris, France<br />

Introduction : L-asparaginase is an<br />

enzyme that catalyses the hydrolysis of<br />

L-asparagine to L-aspartate <strong>and</strong><br />

ammonium. L-asparagine is an essential<br />

amino-acid for the multiplication of<br />

leukemia cells. This enzyme is<br />

prescribed with other cytotoxic drugs, to<br />

treat acute lymphoblastic leukaemia<br />

(ALL) <strong>and</strong> non-Hodgkin lymphomas. We<br />

report herein the case of an<br />

asparaginase’s overdose, treated with<br />

sodium benzoate.<br />

Case report : D.T. (three-year-old, 0,66<br />

m) suffering from ALL, received a<br />

st<strong>and</strong>ardised chemotherapy protocol<br />

EORTC (dexamethasone 3 mg/m²,<br />

vincristine 1,5 mg/m², daunorubicine 30<br />

mg/m², asparaginase E. Coli 10000<br />

UI/m², intrathecal injections of<br />

methotrexate, cytarabine <strong>and</strong><br />

hydrocortisone).<br />

On the day 15 of the protocol, a dose of<br />

aspariginase E. Coli, ten times higher<br />

than the prescribed one’s, was<br />

administered. The clinical examination<br />

was normal although biological<br />

parameters showed an increase of some<br />

amino-acids (glutamic <strong>and</strong> asparticacids)<br />

<strong>and</strong> ammonium : 224 µmol/L<br />

(usual value : 14-38 µmol/L).<br />

A sodium benzoate-based treatment, i.e.<br />

206 mg/kg/day, was started <strong>and</strong> lasted<br />

for three days.<br />

Discussion : The main side effect of<br />

asparaginase is the neurotoxicity due to<br />

the depletion of asparagine, required for<br />

cerebral formation, <strong>and</strong> the increase of<br />

ammonium level. Sodium benzoate,<br />

associated with glycine, has been used<br />

as an alternative way to favor the<br />

nitrogen excretion, as hippuric acid.<br />

The day after the overdose, ammonium<br />

level was highest, i.e. 3<strong>19</strong> µmol/L, then<br />

decreasing quite rapidly. The child<br />

presented no serious adverse effect <strong>and</strong><br />

kept receiving his chemotherapy<br />

treatment three days after overdose.<br />

Conclusion : No such overdose was<br />

found in the literature except the case of<br />

a four year old-boy who had received<br />

4200 UI [1]. The treatment<br />

recommended could be sodium benzoate<br />

250 UI/kg/day but evidence for treating<br />

patient after asparaginase’s overdose<br />

still needs to be demonstrated. The<br />

duration of treatment is unknown but it<br />

could be established with respect to<br />

ammonium level. Measurements of<br />

ammonium, urea <strong>and</strong> amino-acids are<br />

the key points of the monitoring.<br />

[1] Leonard JV, Kay JD : Acute<br />

encephalopathy <strong>and</strong> hyperammonemia<br />

complicating treatment of acute<br />

lymphoblastic leukaemia with<br />

Page 3


asparaginase (letter). Lancet <strong>19</strong>86 ; 1 :<br />

162-3.<br />

Practical use of area under the curve<br />

dosing of vancomycin in endocarditis<br />

(Naomi Warner, Alder Hey Children’s<br />

Hospital)<br />

AB was a 15-year-old female cardiac<br />

patient who was admitted in April 2001<br />

with increased temperature <strong>and</strong> rigors<br />

having been generally unwell for six<br />

weeks. Her previous medical history<br />

included transposition of the great<br />

arteries (TGA), ventricular septal defect<br />

(VSD), pulmonary atresia, <strong>and</strong> right<br />

ventricular outflow tract obstruction<br />

(RVOTO). She had had a severe<br />

postoperative sternal wound infection<br />

<strong>and</strong> had been diagnosed with subacute<br />

bacterial endocarditis (SBE) in 2000.<br />

The impression made by the medical<br />

team was that of endocarditis <strong>and</strong> she<br />

was started on IV vancomycin bd <strong>and</strong><br />

teicoplanin loading then maintenance.<br />

Following a ‘red man reaction’ to the<br />

vancomycin her antibiotics were<br />

subsequently changed to netilmicin tds<br />

<strong>and</strong> teicoplanin.<br />

Blood cultures showed growth of a<br />

coagulase negative staphylococci, Staph<br />

epidermidis, which was sensitive to<br />

netilmicin <strong>and</strong> vancomycin. After<br />

discussion with microbiology <strong>and</strong> the<br />

cardiology team it was decided to restart<br />

vancomycin extending the infusion time<br />

from one hour to six hours <strong>and</strong> giving<br />

chlorpheniramine IV pre dose.<br />

Vancomycin was then changed to tds<br />

dosing on the advice of the<br />

microbiologist. On further investigation<br />

this dosing schedule was based on a<br />

paper written by Schentag JJ (1) which<br />

discussed the reasons for insufficient<br />

responses <strong>and</strong> the resistance of<br />

organisms to vancomycin. This paper<br />

investigated area under the inhibitory<br />

curve (AUIC) dosing where the goal of<br />

therapy is to cover the minimum<br />

inhibitory curve (MIC) of the grampositive<br />

pathogen, failure to cure <strong>and</strong><br />

resistance are consequences of failing to<br />

cover the MIC. It stated that the usual<br />

breakpoint for successful bacterial<br />

eradication is an AUIC of >125.<br />

In order to determine the AUIC for this<br />

patient we needed to determine the MIC<br />

for the organism we had, await steady<br />

state <strong>and</strong> then take a peak sample (1hr<br />

after the end of the infusion), <strong>and</strong> a<br />

trough sample. Using the trapezoid rule<br />

for area under the curve measurement<br />

the AUIC could be calculated <strong>and</strong> the<br />

dosing altered appropriately to maintain<br />

therapeutic levels <strong>and</strong> ensure<br />

eradication. All calculations were carried<br />

out by pharmacy taking into account any<br />

changes in renal function <strong>and</strong> CRP. IV<br />

antibiotic treatment was continued for<br />

six weeks, after which time blood<br />

cultures were clear <strong>and</strong> AB was<br />

discharged, returning twice weekly for<br />

blood cultures <strong>and</strong> U&E’s.<br />

REFERENCES<br />

1) Schentag JJ 2001 Antimicrobial<br />

management strategies for Grampositive<br />

bacterial resistance in the<br />

intensive care unit. Critical Care<br />

Medicine Vol 29, No 4; 100-107<br />

A scheme for the reporting of<br />

adverse drug reactions in children A<br />

Clarkson, I Choonara, Academic Division<br />

of Child Health (University of<br />

Nottingham), Derbyshire Children's<br />

Hospital, Uttoxeter Road, Derby, DE22<br />

3NE, UK<br />

BACKGROUND- The safety of medicines<br />

used in children is of considerable public<br />

interest, yet available data to monitor<br />

the safety of medicines in children is<br />

limited.<br />

AIMS- To raise awareness <strong>and</strong> stimulate<br />

reporting of adverse drug reactions<br />

(ADRs) in children in the Trent region.<br />

METHODS- A pilot <strong>Paediatric</strong> Regional<br />

Monitoring Centre (PRMC) was<br />

established in October <strong>19</strong>98 in the Trent<br />

region. The scheme operates as an<br />

extension of the UK's spontaneous<br />

reporting scheme, The Yellow Card<br />

Scheme run by the Medicines Control<br />

Agency (MCA) <strong>and</strong> the Committee on<br />

Safety of Medicines. Proactive<br />

interventions including a monthly<br />

reminder letter <strong>and</strong> presentations to<br />

staff in the identified hospital have been<br />

made.<br />

RESULTS- There were 442 reports at the<br />

end of the third year which included 9<br />

fatalities. This is an increase compared<br />

to the 40 reports for the year <strong>19</strong>97/98.<br />

66% of the reports were serious The<br />

most commonly suspected medicine was<br />

lamotrigine <strong>and</strong> the most commonly<br />

Page 4


suspected reaction was rash. A wide<br />

range of medicines are suspected of<br />

causing a wide range of reactions. 60%<br />

of the medicines suspected were being<br />

used in a licensed manner.<br />

CONCLUSION- The number of ADR<br />

reports from the Trent region has<br />

increased considerably since the scheme<br />

started. The results so far show that<br />

intensive education <strong>and</strong> promotion of<br />

ADR reporting can result in a major<br />

increase in reporting.<br />

INTRATHECAL DRUG DELIVERY IN<br />

CHILDREN WITH BRAIN TUMOURS S<br />

Conroy 1 , D Walker 2 1 Academic Division of<br />

Child Health, (University of Nottingham),<br />

Derbyshire Children's Hospital, Derby<br />

2 Academic Division of Child Health,<br />

University of Nottingham, Queen's<br />

Medical Centre, Nottingham<br />

Background<br />

Intrathecal drug therapy has been shown<br />

to be successful in treating the<br />

leptomeningeal spread of malignancies<br />

such as leukaemia <strong>and</strong> lymphoma. It<br />

has rarely been explored as a treatment<br />

for primary CNS tumours. Treatment is<br />

currently surgical resection <strong>and</strong><br />

radiation. Radiation causes neurocognitive<br />

sequelae affecting the quality<br />

of life of survivors. Alternative means of<br />

treating these patients to improve<br />

survival rates <strong>and</strong> reduce toxicity is<br />

urgently needed. Intrathecal drug<br />

delivery may offer this alternative by<br />

bypassing the blood brain barrier <strong>and</strong><br />

allowing cytotoxic drugs access to<br />

tumour cells. The aim of this project<br />

was to identify drugs suitable for further<br />

investigation for intrathecal<br />

administration based on their<br />

physicochemical characteristics <strong>and</strong><br />

current knowledge of use.<br />

Methods<br />

Available chemotherapy agents were<br />

identified from pharmaceutical<br />

textbooks. Literature searches using<br />

Medline <strong>and</strong> Embase were conducted to<br />

identify relevant physicochemical,<br />

efficacy <strong>and</strong> toxicity data on all drugs.<br />

Results<br />

30,033 citations were screened covering<br />

111 cytotoxic drugs. 90 drugs were<br />

excluded for a variety of reasons. These<br />

included literature evidence of<br />

neurotoxicity, irritant or vesicant drug,<br />

lack of efficacy in the appropriate<br />

tumours, pro-drug requiring hepatic<br />

activation. The remainder were<br />

prioritised in terms of their potential<br />

usefulness for intrathecal administration,<br />

based on efficacy <strong>and</strong> toxicity<br />

information, documented experience of<br />

intrathecal delivery <strong>and</strong> relevant<br />

physicochemical characteristics.<br />

Conclusion<br />

Drugs showing potential for<br />

administration by the intrathecal route in<br />

children with brain tumours were<br />

identified. Further work should<br />

determine which drugs will be worthy of<br />

testing in clinical trials.<br />

The potential for administering a ten<br />

fold overdose to neonates - a<br />

summary (K Turner, C Newman)<br />

Introduction<br />

The potential for medication errors in the<br />

area of neonatal medicine is of great<br />

concern. There have been several<br />

reports of fatal errors, particularly due to<br />

ten, one hundred or even one<br />

thous<strong>and</strong>fold errors, i.e. decimal point<br />

errors, in prescribing, preparation or<br />

administration. This problem is<br />

exacerbated by the high strength of<br />

intravenous vials, which are often<br />

tailored to the needs of adults. The aim<br />

of the study was to determine the<br />

proportion of prescribed doses where the<br />

potential existed to prepare a tenfold or<br />

one hundredfold overdose from the vial<br />

strength available on the ward.<br />

Method<br />

Over a period of 6 weeks between<br />

January <strong>and</strong> February 2001, all IV drugs<br />

prescribed on the neonatal unit at QMC<br />

were recorded. Information collected<br />

included patient details, drug, dose,<br />

number of doses given, whether the<br />

prescription was for an infusion or a<br />

bolus <strong>and</strong> time of prescribing. The doses<br />

prescribed were compared to the<br />

strength of vial available on the ward for<br />

each drug.<br />

Results<br />

A total of 336 IV prescriptions were<br />

recorded <strong>and</strong> 1348 IV doses were given.<br />

Of these, 104 (31%) of the prescriptions<br />

Page 5


were less than or equal to one tenth of a<br />

vial. This equated to 333 IV doses (25%<br />

of doses administered). Also, 16 (4.8%)<br />

of prescriptions were less then one<br />

hundredth of a vial, equating to 32 IV<br />

doses (2.4% of doses administered).<br />

Drugs highlighted as having a high<br />

proportion of doses in the above<br />

categories were indomethacin, insulin,<br />

diamorphine <strong>and</strong> frusemide. It is<br />

concerning that these are some of the<br />

most harmful drugs in overdose.<br />

Discussion<br />

Many factors have been shown to affect<br />

the incidence of administration errors.<br />

These include nursing shortages <strong>and</strong><br />

high rates of interruption during<br />

checking <strong>and</strong> administration of drugs. As<br />

these situations occur on every unit,<br />

safeguards must be put in place to<br />

reduce the possibility of an error. The<br />

results highlight the benefits of providing<br />

a CIVAS service <strong>and</strong> indicate the areas of<br />

highest risk <strong>and</strong> therefore most benefit.<br />

However, the manufacture of lower<br />

strength vials would make preparation<br />

on the unit safer.<br />

Conclusion<br />

The potential for this type of error will<br />

remain as long as vials are<br />

manufactured with a view to treating<br />

adults. The way forward may be the<br />

formation of a <strong>Neonatal</strong> Unit consortium<br />

that would increase purchasing power.<br />

The national dem<strong>and</strong> for smaller sized<br />

vials or pressure from the licensing<br />

authorities may result in manufacture of<br />

neonatal targeted products.<br />

<strong>Paediatric</strong> Medicines <strong>and</strong> the<br />

UK Parliament<br />

On 16 th October 2001 Dr Evan Harris<br />

(Oxford West <strong>and</strong> Abingdon) asked the<br />

Secretary of State for Health<br />

(1) what recent assessment he has<br />

made of drugs being used for the<br />

treatment of children which are<br />

not licensed for that purpose;<br />

(2) what assessment he has made of<br />

the need for research to establish<br />

the safety <strong>and</strong> efficacy of all<br />

drugs used in the treatment of<br />

children;<br />

(3) what estimate he has made of<br />

the number of children who (a)<br />

died <strong>and</strong> (b) were injured as a<br />

result of treatment with drugs not<br />

licensed for the treatment of<br />

children in each of the last five<br />

years; <strong>and</strong> if he will make a<br />

statement;<br />

(4) what steps he is taking to ensure<br />

that pharmaceutical companies in<br />

the United Kingdom provide clear<br />

dosage information for children<br />

<strong>and</strong> adults on all drugs they<br />

produce; <strong>and</strong> if he will make a<br />

statement<br />

(5) what percentage of medicines<br />

used for treatment of children do<br />

not have a dosage approved by<br />

the Medicines Control Agency;<br />

<strong>and</strong> if he will make a statement.<br />

In response Ms Hazel Blears<br />

(Parliamentary Under-Secretary of State<br />

for Health) replied:<br />

‘We recognise the critical importance of<br />

this issue <strong>and</strong> agree that children should<br />

have access to medicines that have been<br />

fully evaluated to the same high<br />

st<strong>and</strong>ards of safety, quality <strong>and</strong> efficacy<br />

as those available for the adult<br />

population. The issue is not confined to<br />

the United Kingdom, but affects the<br />

whole of Europe <strong>and</strong> the United States.<br />

Medicines regulation in the UK derives<br />

largely from European legislation <strong>and</strong> an<br />

international approach to the issue is<br />

therefore needed.<br />

We have consequently raised the profile<br />

of this issue at a European level,<br />

including taking the lead in developing a<br />

European guideline, adopted in <strong>19</strong>97, to<br />

encourage companies to undertake<br />

appropriate clinical trials on the use of<br />

medicines in the treatment of children.<br />

This formed the basis for an<br />

international guideline, which came into<br />

operation in January in the EU, <strong>and</strong> also<br />

applies in the USA <strong>and</strong> Japan. In<br />

addition, the Council of the European<br />

Union has asked the European<br />

Commission to bring forward measures<br />

to make sure that medicines for children<br />

are fully adapted to their specific needs.<br />

We are presently waiting for their<br />

proposals. However, the Commission has<br />

stated its intention to comply with this<br />

request. The UK will play an active role<br />

in the development of this initiative to<br />

ensure that effective solutions are found.<br />

In addition, the Committee on<br />

Proprietary Medicinal Products (CPMP),<br />

Page 6


the scientific advisory committee of the<br />

European Medicines Evaluation Agency<br />

(EMEA), recognising the importance of<br />

this topic has announced its intention to<br />

set up a <strong>Paediatric</strong> Expert <strong>Group</strong> to<br />

advise the EMEA <strong>and</strong> its scientific<br />

committees on all questions relating to<br />

the development <strong>and</strong> use of medicinal<br />

products in children. The UK has<br />

nominated representatives to this<br />

<strong>Paediatric</strong> Expert <strong>Group</strong>.<br />

In the meantime, the UK Government<br />

have taken important steps to address<br />

the issue at a national level within the<br />

existing regulatory framework. The<br />

Committee on Safety of Medicines<br />

(CSM), an independent expert<br />

committee that advises the Licensing<br />

Authority has established a <strong>Paediatric</strong><br />

Sub-<strong>Group</strong> to provide expert advice on<br />

the regulatory strategy to improve the<br />

availability of medicines licensed for use<br />

in children. MCA now routinely asks<br />

companies for paediatric development<br />

plans where appropriate. Pharmaceutical<br />

companies are required by the Licensing<br />

Authority to provide dosage information<br />

in the Summary of Product<br />

Characteristics when a Marketing<br />

Authorisation for their medicinal product<br />

is granted or amended in the UK. This<br />

dosage information must be supported<br />

by the findings from clinical trials<br />

undertaken in the relevant adult or<br />

paediatric patient population.<br />

The safety of all medicines whether<br />

licensed, used outside the terms of their<br />

licence, or unlicensed, is monitored by<br />

the Medicines Control Agency <strong>and</strong> CSM.<br />

Various data sources are used for<br />

monitoring safety including: the UK<br />

Yellow Card Scheme for reporting<br />

suspected adverse drug reactions,<br />

suspected adverse drug reaction reports<br />

from abroad, the world-wide medical <strong>and</strong><br />

scientific literature, clinical trial reports<br />

<strong>and</strong> periodic safety updates from<br />

manufacturers. The UK Yellow Card<br />

Scheme acts as an early warning system<br />

for drug safety hazards but is not a<br />

scheme for recording all suspected<br />

adverse reactions that occur in the UK.<br />

Data from the Yellow Card Scheme<br />

cannot, therefore, provide estimates of<br />

the incidence of adverse reactions,<br />

including fatal adverse reactions<br />

occurring in children. The CSM Working<br />

<strong>Group</strong> on <strong>Paediatric</strong> Medicines also<br />

advises on the collection of information<br />

on adverse reactions in relation to<br />

unlicensed use of medicines in children.<br />

ESDP Conference 2001<br />

In November 2001, I attended the 7 th<br />

Congress of the European Society for<br />

Developmental Pharmacology which took<br />

place in Limassol in Cyprus. The invited<br />

speakers <strong>and</strong> delegates included<br />

neonatologists, paediatricians <strong>and</strong><br />

pharmacists all with a special interest in<br />

paediatric clinical pharmacology. A total<br />

of 7 pharmacists attended the Congress<br />

this year. The delegates were from<br />

Europe <strong>and</strong> the United States. Invited<br />

lectures included the topics of:<br />

• Adverse drug reactions in children<br />

• Input of pharmacokinetics in the<br />

design of better <strong>and</strong> safer CNS<br />

drugs<br />

• Detecting adverse effects in<br />

pregnancy<br />

• Developmental pharmacology of<br />

pain <strong>and</strong> analgesia<br />

• Recent developments in<br />

prostagl<strong>and</strong>in research<br />

• Cox inhibitors <strong>and</strong> the kidney<br />

• Cox inhibitors <strong>and</strong> the ductus<br />

arteriosus<br />

• The use of NSAIDs in the<br />

perinatal <strong>and</strong> neonatal period<br />

• Pharmacogenetics in drug<br />

therapy <strong>and</strong> drug development<br />

• Pharmacogenomic implications of<br />

cholinesterase polymorphisms<br />

• Gene targeting<br />

• Pharmacoeconomics in<br />

paediatrics<br />

• Ethical aspects of involving<br />

children in clinical research<br />

• The need for transparency <strong>and</strong><br />

public disclosure of clinical trials<br />

in children<br />

Page 7


• New technologies for making<br />

vaccines<br />

• Prevention of RSV in infants<br />

• Potential effects of new vaccines<br />

on the pattern of drug usage in<br />

paediatrics<br />

Other lectures including progress reports<br />

on the <strong>Paediatric</strong> Pharmacology Research<br />

Unit Network in the United States <strong>and</strong><br />

the European Network for Drug<br />

Investigation in Children were also held.<br />

The final lecture discussed the challenge<br />

of achieving optimal paediatric<br />

pharmacotherapy in the developing<br />

world. In addition to these invited<br />

lectures, there was a series of free oral<br />

communications presented on each day.<br />

Some excellent work was presented <strong>and</strong><br />

abstracts of these presentations may be<br />

found in the next edition of <strong>Paediatric</strong><br />

<strong>and</strong> Perinatal Drug Therapy which is due<br />

out in December 2001. All <strong>NPPG</strong><br />

members will receive a copy of this.<br />

Poster presentations were also done<br />

where the posters were displayed for the<br />

duration of the Congress <strong>and</strong>, at the<br />

poster session times, each delegate was<br />

given 5 minutes to talk about his/her<br />

poster <strong>and</strong> to answer any questions.<br />

This was a very interesting meeting,<br />

where I learnt a lot. It was very intense<br />

<strong>and</strong> hard work, but gave me the<br />

opportunity to meet some well known<br />

people whose work has been published<br />

extensively. If anyone is interested in<br />

further details of sessions from the<br />

Congress, please do not hesitate to<br />

contact me.<br />

Sharon Conroy (Lecturer in <strong>Paediatric</strong><br />

Clinical Pharmacy Derbyshire Children’s<br />

Hospital<br />

First Sc<strong>and</strong>inavian <strong>Paediatric</strong><br />

Pharmacy Conference<br />

In October, 21 enthusiasts gathered in<br />

Lund, Sweden, for the first Sc<strong>and</strong>inavian<br />

<strong>Paediatric</strong> Pharmacy Conference,<br />

arranged by SPPG. The objectives of the<br />

conference were to get an introduction in<br />

the paediatric pharmacy area <strong>and</strong> to<br />

establish <strong>and</strong> find the forms for a<br />

knowledge-based network of<br />

Sc<strong>and</strong>inavian paediatric pharmacists.<br />

The day started with Tor Skärby, clinical<br />

pharmacologist <strong>and</strong> paediatrician, who<br />

introduced us to drug dosage to infants<br />

<strong>and</strong> children. The experienced nurse in<br />

neonatology, Mari Wahlström, gave<br />

practical advice on how pharmacists can<br />

help on a neonatology ward. She<br />

emphasised the difficulties of drug<br />

administration <strong>and</strong> intravenous access in<br />

neonates, <strong>and</strong> the need of a devoted<br />

pharmacist. Ingrid Grönlie, Norway, gave<br />

a report from the <strong>NPPG</strong> congress, which<br />

she also recommended warmly.<br />

The afternoon was spent in workshops<br />

with the objective to establish guidelines<br />

for investigating paediatric pharmacy<br />

issues. The discussions were built on<br />

case presentations by Per Nydert,<br />

Sweden. The workshop presentations<br />

were summarised in a checklist on useful<br />

paediatric literature, <strong>and</strong> information on<br />

how to proceed the investigation that<br />

can be downloaded from the SPPG<br />

homepage. Other statements were the<br />

importance of consulting more than one<br />

literature source, to use the pharmacist<br />

network <strong>and</strong> experience, <strong>and</strong> ensure all<br />

necessary questions are asked before<br />

checking the literature. The possibilities<br />

to compile information in a Sc<strong>and</strong>inavian<br />

Medicines for Children were discussed.<br />

At the end of the day, a formal SPPG<br />

union was formed <strong>and</strong> the goals of <strong>NPPG</strong><br />

were adopted. An interim board was<br />

formed with the members: Siri Wang<br />

(Tönsberg, Norway), Per Nydert<br />

(Huddinge, Sweden), Sofia Jönsson<br />

(Lund, Sweden), Ulla Hultström<br />

(Göteborg, Sweden) <strong>and</strong> Åsa Andersson<br />

(Stockholm, Sweden).<br />

The arrangers were happy to find the<br />

conference participants representing a<br />

broad competency: hospital pharmacy,<br />

pharmacy laboratory, research,<br />

pharmacokinetics as well as a broad<br />

geographic area. We all had a very<br />

interesting <strong>and</strong> inspiring day <strong>and</strong> we are<br />

now looking forward to next year's<br />

conference.<br />

Page 8

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