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Nicotine replacement therapy … - Carlos A ... - Entretiens du Carla

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<strong>Nicotine</strong> Replacement<br />

Therapies<br />

Consensus of European<br />

Experts on Indications<br />

and Contraindications<br />

1<br />

Chairman:<br />

Jorge-Alberto COSTA e SILVA<br />

With the contribution of:<br />

Gilbert LAGRUE<br />

In collaboration with:<br />

Pierre BARTSCH<br />

Ivan BERLIN<br />

Hedwig BOUDREZ<br />

Magdalena CIOBANU<br />

Tim COLEMAN<br />

Jean DAVER (†)<br />

Mervi HARA<br />

Giovanni INVERNIZZI<br />

<strong>Carlos</strong> JIMENEZ- RUIZ<br />

Georges KOTAROV<br />

Stefano NARDINI<br />

Paraskevi-Voula PATAKA<br />

Jean PERRIOT<br />

Robert RUSU<br />

Rudolph SCHOBERBERGER<br />

Daniel THOMAS<br />

Imre VADASZ<br />

Fleur VAN BLADEREN<br />

Paulo VITORIA<br />

Jean-Pierre ZELLWEGER


.<br />

Summary Summary<br />

- Summary - Summary - Summary<br />

Participants ------------------------- p. 3<br />

Thanks<br />

E. André ------------------------------ p. 4<br />

Chairmen Intro<strong>du</strong>ction<br />

J.A. Costa e Silva ---------------------- p. 4<br />

Conclusions<br />

Synthesis with the contributions of ------ p. 6<br />

P. Bartsch, G. Lagrue, S. Nardini, J. Perriot<br />

Intro<strong>du</strong>ction--------------------------- p. 6<br />

Regulatory status by country-------------- p. 8<br />

Increase in the prescribed dose and possibility<br />

to combine 2 NRTs ---------------------- p. 8<br />

NRT for Temporary Abstinence (TA) -------- p. 9<br />

The proper use of NRT to re<strong>du</strong>ce tobacco<br />

consumption -------------------------- p. 10<br />

Specific indications, limitations and<br />

Contraindications----------------------- p. 12<br />

The case of snus------------------------ p. 13<br />

Conclusions en français<br />

Synthèse avec les contributions de ------- p. 14<br />

P. Bartsch, G. Lagrue, S. Nardini, J. Perriot<br />

Intro<strong>du</strong>ction--------------------------- p. 14<br />

Situation réglementaire par pays ---------- p. 16<br />

Augmentation de la dose prescrite et possibilité<br />

d’associer 2 TSN ------------------------ p. 16<br />

Les TSN en abstinence temporaire (AT) ------ p. 17<br />

Le bon usage des TSN dans la ré<strong>du</strong>ction de<br />

la consommation de tabac --------- ------- .18<br />

Indications spécifiques, limites et<br />

contre-indications -----------------------p 20<br />

Le cas <strong>du</strong> snus --------------------------p. 21<br />

Session 1<br />

Current situation of Indications<br />

and Contraindications for <strong>Nicotine</strong><br />

Replacement Therapies<br />

Synthesis with the contribution of<br />

représentatives from EU countries<br />

Participants and E. Kralikova (CZ) ----------- p. 23<br />

Session 2<br />

NRTs in subjects under the age<br />

of 18 in case of pregnancy or<br />

cardiovascular diseases<br />

Use of NRTs among adolescents<br />

J.P. Zellweger -------------------------- p. 32<br />

Recommendations <strong>du</strong>ring pregnancy<br />

T. Coleman ---------------------------- p. 36<br />

Cardiovascular safety of NRTs<br />

D. Thomas ---------------------------- p. 42<br />

Session 3<br />

Re<strong>du</strong>ction in consumption<br />

Re<strong>du</strong>cing cigarette’s consumption<br />

J. Perriot------------------------------- p. 48<br />

Session 4<br />

Increase in the prescribed dose and<br />

possibility to combine 2 NRTs<br />

How to optimise the effectiveness of nicotine<br />

<strong>replacement</strong> therapies?<br />

I. Berlin ------------------------------- p. 58<br />

Session 5<br />

Temporary cessation<br />

<strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> for temporary<br />

abstinence<br />

C. Jiménez-Ruiz ------------------------ p. 64<br />

Session 6<br />

European Program PESCE<br />

J. Daver ------------------------------ p. 72<br />

2


Participants - Participants<br />

Participants - Participants - Participants<br />

Pierre BARTSCH Pneumology Belgium<br />

Ivan BERLIN Pharmacology France<br />

Hedwig BOUDREZ Psychology Belgium<br />

Magdalena CIOBANU Pneumology Roumania<br />

Tim COLEMAN Physician England<br />

Jorge-Alberto COSTA e SILVA Psychiatry Brazil<br />

Jean DAVER Biology France<br />

Mervi HARA Public Health Finland<br />

Giovanni INVERNIZZI Pneumology Italy<br />

<strong>Carlos</strong> JIMENEZ-RUIZ Pneumology Spain<br />

George KOTAROV Public Health Bulgaria<br />

Stefano NARDINI Pneumology Italy<br />

Paraskevi PATAKA Pneumology Greece<br />

Jean PERRIOT Pneumology France<br />

Robert RUSU Pneumology Luxembourg<br />

Rudolph SCHOBERBERGER Psychology Austria<br />

Daniel THOMAS Cardiology France<br />

Imre VADASZ Public Health Hungary<br />

Fleur VAN BLADEREN Public Health The Netherlands<br />

Paulo VITORIA Psychology Portugal<br />

Jean-Pierre ZELLWEGER Pneumology Switzerland<br />

By E-mail<br />

Eva KRALIKOVA Public Health Czech Republic<br />

Pierre Fabre participants<br />

Étienne ANDRÉ Public health<br />

Jacques CHEVALLET Pierre Fabre Santé Manager<br />

Philippe CROUZIT Pharmacist, France Marketing Manager<br />

Clément LAUR IDPF, Development Project Manager<br />

Jean-Marie PIBOURDIN Pierre Fabre Santé, Medical Director<br />

Guillaume RANDAXHE Project Manager OTC<br />

Nabil SAICHI IDPF, Clinical trials<br />

3 Participants


Thanks<br />

E. André<br />

Pierre Fabre Laboratories would like to<br />

express their warm thanks to all the<br />

participants of this 18 th Entretien <strong>du</strong> <strong>Carla</strong><br />

which was on the theme: “Consensus of<br />

European Experts on Indications and<br />

Contraindications of <strong>Nicotine</strong> Replacement<br />

Therapies (NRTs)”.<br />

NRTs are available throughout Europe.<br />

Scientific works and publications as well as<br />

the experience acquired by the regular use<br />

of these treatments confirm their major<br />

interest as accompanying measures for the<br />

smoker in general and in smoking cessation<br />

in particular.<br />

In addition to smoking cessation, their<br />

use and indications vary in all 27 EU<br />

countries. This consensus of experts will<br />

have the task to draw up proposals so as to<br />

standardize Indications and Contraindications<br />

of <strong>Nicotine</strong> Replacement<br />

Therapies. So, the objective of this<br />

<strong>Entretiens</strong> <strong>du</strong> <strong>Carla</strong> hence lies in the fact<br />

that a genuine consensus between experts<br />

takes place. Moreover, these same experts<br />

have dedicated themselves to the<br />

elaboration of conclusions based on their<br />

experience, competence and motivation to<br />

develop a priority aspect in public health.<br />

Through this report, the reader will not<br />

only appreciate the quality of their<br />

presentations but also their determination<br />

to find conclusions on the various<br />

submitted questions. ■<br />

Intro<strong>du</strong>ction<br />

J.A.<br />

Costa e Silva<br />

This was the 18 th edition of “Les<br />

<strong>Entretiens</strong> <strong>du</strong> <strong>Carla</strong>”, this one focusing on<br />

<strong>Nicotine</strong> Replacement Therapies (NRTs).<br />

A homogenous group of medical doctors,<br />

researchers, and other experts have met in<br />

Castres, France with the patronage of Pierre<br />

Fabre Laboratories. This consensus and<br />

exchange meeting of high scientific level,<br />

gather experts with the aim of drawing up<br />

recommendations and guidelines thanks to<br />

the contribution of distinguished specialists.<br />

This consensus of expert will have the<br />

task to draw up proposals so as to<br />

standardize Indications and Contraindications<br />

of <strong>Nicotine</strong> Replacement<br />

Therapies. This involves re<strong>du</strong>ction in<br />

consumption, temporary cessation, increase<br />

in the dose prescribed and the ability to<br />

combine 2 NRTs, NRTs in persons under the<br />

age of 18, the use <strong>du</strong>ring pregnancy, and in<br />

case of cardio-vascular diseases.<br />

All of these exciting topics will surely<br />

lead to discussions and conclusions that will<br />

benefit smokers. We sincerely thank the<br />

efforts and dedication of all participants<br />

and the ethical support of Pierre Fabre<br />

Laboratories. ■<br />

4


Participants - Participants<br />

Participants - Participants - Participants<br />

From left to right and from the top to the front:<br />

E. André, J.M. Pibourdin, H. Boudrez, G. Randaxhe, C. Laur, C. Jiménez-Ruiz, R. Rusu, R. Schoberberger,<br />

S. Brignatz, I. Berlin, D. Thomas, I. Vadasz, G. Kotarov, N. Saïchi<br />

F. Van Bladeren, M. Hara, M. Ciobanu, P.V. Pataka, G. Invernizzi, P. Bartsch, J. Perriot,<br />

J.A. Costa e Silva, P. Vitoria, S. Nardini.<br />

5<br />

Thanks & Intro<strong>du</strong>ction


Conclusions<br />

With contributions<br />

from:<br />

P. Bartsch, G. Lagrue,<br />

S. Nardini, J. Perriot<br />

Intro<strong>du</strong>ction<br />

Tobacco use is the leading cause of premature<br />

mortality in the world and is responsible<br />

for a very high morbidity rate. This addictive<br />

behavior is a chronic and relapsing disorder,<br />

reinforced by a physical dependence attributable<br />

mainly to nicotine. This dependence<br />

evolves over a number of years, often marked<br />

by attempts to quit and relapses.<br />

Regardless of the strategy selected to stop<br />

smoking, psycho-behavioral support, medical<br />

treatment and follow-up over time must be<br />

made available as they increase the chances<br />

of the patient’s potential success in quitting<br />

and re<strong>du</strong>ce the risk of relapses.<br />

The choice of drugs is based on the patient’s<br />

medical history, the risk of adverse effects, the<br />

degree of dependence, related comorbidities,<br />

the existence of potential contraindications<br />

and user precautions, potential risks of drug<br />

dependence and misuse, the patient’s preferences<br />

and the cost of the <strong>therapy</strong>.<br />

This consensus of experts has the task to<br />

draw up proposals so as to standardize Indications<br />

and Contraindications of <strong>Nicotine</strong><br />

Replacement Therapies. This involves re<strong>du</strong>ction<br />

in consumption, temporary cessation,<br />

increase in the dose prescribed and the ability<br />

to combine 2 NRTs , NRTs in persons under the<br />

age of 18, contraindications: pregnancy,<br />

cardiovascular diseases.<br />

6<br />

From left to right,<br />

D. Thomas,<br />

J. Perriot,<br />

J-M. Pibourdin,<br />

I. Berlin,<br />

F. Van Bladeren<br />

(slightly hidden),<br />

I. Vadasz,<br />

R. Rusu,<br />

P.V. Pataka,<br />

H. Martino,<br />

N. Saïchi.


Conclusion 1<br />

<strong>Nicotine</strong> Replacement Therapy<br />

State of the art<br />

<strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> (NRT) is the<br />

oldest and best evaluated <strong>therapy</strong> in the<br />

fight against tobacco use. According to a<br />

meta-analysis of 132 trials (> 40,000 smokers)<br />

including a 12-month follow-up period, the<br />

odds ratio for smoking abstinence compared<br />

to a placebo is 1.58 (IC 95%:1.66 to 1.88).<br />

The benefit/risk ratio is optimal in<br />

comparison to other pharmacological<br />

treatments.<br />

1.1. Choosing the optimal NRT dose is a<br />

key factor to succeed<br />

NRT follow-up is crucial to adjust doses<br />

(according to clinical symptoms and the level<br />

of CO in expired air), potentially combine<br />

oral administration forms and transdermal<br />

absorption forms.<br />

NRT has proven to be efficacious without<br />

psychological support. Nevertheless,<br />

combining the use of NRT with psychological<br />

support increases the likelihood to quit.<br />

1.2. Drug treatments are indicated for<br />

dependent patients<br />

Generally, the pharmacological<br />

dependence is assessed with the Fagerström<br />

Test for <strong>Nicotine</strong> Dependence (FTND).<br />

Although the FTND score is not a criterion to<br />

prescribe NRT, average and high dependence<br />

scores suggest the use of NRT in order to<br />

re<strong>du</strong>ce withdrawal symptoms.<br />

1.3. Usefulness of NRT lies on:<br />

- the largely demonstrated efficacy with<br />

long-term follow-up,<br />

- the very low risk of serious adverse<br />

effects,<br />

- the harmless nature of the adverse<br />

effects (often related to the route of<br />

administration).<br />

7<br />

1.4. In case of comorbidities<br />

Because of the very favorable adverse<br />

effect profile, NRT can be prescribed in the<br />

case of comorbidities (coronary artery<br />

disease, peripheral atherosclerosis, chronic<br />

obstructive pulmonary disease [COPD],<br />

severe kidney failure, neuropsychiatric<br />

disorders, etc).<br />

Conclusions


Conclusion 2<br />

Proper use of NRT<br />

- Success rates improve if the daily NRT<br />

dose is close to nicotine’s daily dose inhaled<br />

while smoking,<br />

- The use of NRT should always be<br />

combined with behavioural treatment,<br />

- Patients who are using NRT concomitantly<br />

with smoking are not exposed to<br />

cardiovascular complications,<br />

- Length of NRT use must be specific to<br />

the patient, and in particular, to the patient’s<br />

clinical response when NRT is tapered down<br />

or stopped.<br />

There is no experimental evidence in<br />

combining NRT with Bupropion, more<br />

research should be considered; the<br />

combination of NRT with varenicline has not<br />

been investigated until now (June 2008);<br />

these combinations are therefore not<br />

recommended.<br />

Regulatory status<br />

by country<br />

<strong>Nicotine</strong> Replacement Therapies are<br />

available throughout Europe. Scientific works<br />

and publications, as well as experience<br />

acquired by the regular use of these treatments<br />

confirm their major interest as accompanying<br />

measures for the smoker in general and in<br />

smoking cessation in particular.<br />

In addition to smoking cessation, their use,<br />

indications and contra-indications vary across<br />

the 27 EU countries.<br />

The table pages 24 to 29<br />

compares the status, indications and<br />

contraindications of NRTs country by country.<br />

It illustrates the vast diversity separating the<br />

27 countries of the European Union. This<br />

consensus of expert draws up proposals so as<br />

to standardize Indications and Contraindications<br />

of <strong>Nicotine</strong> Replacement Therapies.<br />

Increase in the<br />

prescribed dose<br />

and possibility to<br />

combine 2 NRTs<br />

Conclusion 3<br />

Indivi<strong>du</strong>al Dose Adaptation<br />

The consensus “Experts Panel” composed<br />

by tobaccologists from different European<br />

countries recommend:<br />

3.1. Initial high fixed dose NRT is not<br />

proven as efficient. Indivi<strong>du</strong>al dose<br />

adaptation may provide better results than<br />

either high or low fixed doses.<br />

3.2. A method for adjusting the dose<br />

would be to measure salivary cotinine before<br />

smoking cessation and to adjust the daily<br />

dose of NRT so as to obtain the same salivary<br />

concentration of cotinine after smoking<br />

cessation, to provide 100% nicotine<br />

<strong>replacement</strong>. Some ongoing studies should<br />

answer these questions.<br />

3.3. Combination of different NRT is<br />

more effective than single NRT treatment<br />

(mostly patches + oral forms).<br />

3.4. Pretreatment by NRT before cessation<br />

date could be of interest.<br />

3.5. NRT can be prolonged over 3 months<br />

as long as needed.<br />

3.6. NRT’s effectiveness can be enhanced<br />

by cognitivo-behavioral <strong>therapy</strong> (CBT).<br />

8


NRT for<br />

Temporary<br />

Abstinence (TA)<br />

Conclusion 4<br />

In relation with the daily experience,<br />

experts recommend NRT for TA in three<br />

different situations:<br />

4.1. To those smokers, unwilling to quit,<br />

who are forced to live in smoke-free<br />

environment and, as a consequence, are<br />

suffering from craving and nicotine<br />

withdrawal symptoms.<br />

4.2. To hospitalized smokers , who do not<br />

want to quit. In these cases, NRT should be<br />

considered as a first-line medication <strong>du</strong>e to<br />

its fast action and its safety regarding<br />

interactions with other medications.<br />

9<br />

4.3. To smokers in elective surgery, who<br />

do not want to quit. In these cases, TA should<br />

be recommended at least 8-4 weeks before<br />

surgery. In these cases, NRT should be<br />

considered as a first-line medication,<br />

although other medication can also be<br />

considered as second-line treatment.<br />

Note 4:Definition of TA<br />

A smoker in temporary abstinence (TA) can<br />

be defined as a smoker who does not want<br />

to quit and, for different reasons, must<br />

refrain from smoking <strong>du</strong>ring a period of<br />

time: meeting, hospital, psychiatric unit,<br />

transport, workplace, restaurant…<br />

From left to right,<br />

S. Nardini, G. Invernizzi and M. Ciobanu.<br />

Conclusions


The proper use<br />

of NRT to re<strong>du</strong>ce<br />

tobacco<br />

consumption<br />

Conclusion 5<br />

Towards total cessation<br />

Re<strong>du</strong>cing tobacco consumption is a decision<br />

that must be supported and its objective must<br />

be to allow the smoker to decide when to quit<br />

tobacco completely, with the support of his<br />

physician or another health professional or<br />

tobaccologist.<br />

Note 5:The only proven benefit of smoking re<strong>du</strong>ction is to<br />

increase the likelihood of complete cessation.<br />

Tobacco use is responsible for high morbidity and mortality. Cigarettes are<br />

the main form of tobacco consumption and the most toxic and addictive.<br />

While nicotine is the agent that causes tobacco dependence, the majority of<br />

risks relate to other components of smoke pro<strong>du</strong>ced by the combustion of<br />

tobacco (nicotine may be harmful itself, too).<br />

No threshold value exists in terms of tobacco toxicity, but it is generally dosedependent.<br />

Therefore, the best way to re<strong>du</strong>ce the risks of tobacco use is to<br />

never start smoking or to quit completely.<br />

However, it is worthwhile recommended smokers re<strong>du</strong>ce their consumption<br />

of tobacco when:<br />

■ they have failed in their attempt to quit;<br />

■ they cannot or do not want to stop smoking immediately;<br />

■ they do not want to stop smoking yet but are willing to re<strong>du</strong>ce their<br />

tobacco consumption;<br />

■ they prepare a complete stop, in order to facilitate the cessation process.<br />

10<br />

Recommendatio<br />

Conclusion 6<br />

Achieve 50% re<strong>du</strong>ction<br />

This aims is to target a 50% re<strong>du</strong>ction of<br />

consumption with no compensatory smoking.<br />

This can be verified by measuring the expired<br />

CO.<br />

If the final aim, smoking cessation or 50%<br />

re<strong>du</strong>ction is not reached after six months (of<br />

re<strong>du</strong>ced consumption), the smoking re<strong>du</strong>ction<br />

strategy can be considered as a failure and<br />

reworked.<br />

If the 50% re<strong>du</strong>ction of consumption has<br />

been achieved, the health professionnal must<br />

ensure re<strong>du</strong>ction is checked regularly, as well as<br />

the patient’s tolerance, and increase the<br />

smoker’s motivation to decide to quit<br />

completely.<br />

10


Conclusion 7<br />

Oral form or Patches for re<strong>du</strong>cing<br />

tobacco consumption<br />

To be effective, re<strong>du</strong>ction in<br />

consumption has to be supported by NRT.<br />

Oral forms are to be selected as a priority<br />

in accordance with the smoker’s<br />

preferences. Patches and oral forms may<br />

also be combined.<br />

One should be aware of a high(er) level<br />

of nicotinemia when NRT is used for<br />

re<strong>du</strong>cing smoking when the smoker at the<br />

same time is not re<strong>du</strong>cing the amount of<br />

cigarettes as planned.<br />

The experts indicate that oral tobacco<br />

pro<strong>du</strong>cts used in certain countries such as<br />

snus, to re<strong>du</strong>ce the consumption of<br />

cigarettes carry the risk of causing somatic<br />

pathologies and addiction, and therefore<br />

must be the subject of further studies<br />

before public authorities can authorize<br />

their sale. See Conclusion 14.<br />

Conclusion 8<br />

Re<strong>du</strong>ction and pregnancy<br />

As much of the harm that smoking causes<br />

in pregnancy is dose dependant (e.g.<br />

re<strong>du</strong>ced birth weight), pregnant women<br />

should try to quit when they are pregnant<br />

and if they cannot stop smoking, they should<br />

re<strong>du</strong>ce their smoking as much as possible. If,<br />

using only behavioural methods, women are<br />

not able to stop smoking then they could<br />

consider using nicotine <strong>replacement</strong> <strong>therapy</strong><br />

(NRT) to help them stop (see Conclusion 12).<br />

Much of the toxicity from tobacco use<br />

<strong>du</strong>ring pregnancy may be caused by the<br />

pro<strong>du</strong>cts of combustion* (see note in the<br />

margin) that are given off when tobacco is<br />

burned (e.g. carbon monoxide or polycyclic<br />

aromatic hydrocarbons) and so NRT may be<br />

safer than continued smoking.<br />

11<br />

However, the impact on women’s total<br />

nicotine exposure (i.e. from both NRT and<br />

continued smoking), of using NRT for<br />

smoking re<strong>du</strong>ction in pregnancy remains<br />

unknown. Research is needed to determine<br />

whether or not using NRT to help re<strong>du</strong>ce<br />

(and not quit) smoking in pregnancy also<br />

re<strong>du</strong>ces the delivery of toxins and is less<br />

harmful to the fetus than continued<br />

maternal smoking.<br />

Conclusion 9<br />

Re<strong>du</strong>ction in a patient with heart<br />

disease<br />

Many studies have confirmed the perfect<br />

safety of NRT in association with a re<strong>du</strong>ction<br />

in tobacco consumption for patients with<br />

heart diseases (including coronary patients).<br />

Also, even it is important to emphasize<br />

the necessity of total abstinence for smokers<br />

with heart disease to minimize health risks<br />

from tobacco, re<strong>du</strong>ction should eventually<br />

be promoted as a first step to achieving<br />

cessation in smokers unwilling or perceiving<br />

themselves unable to quit. Nevertheless, we<br />

don't know the real benefits of this strategy<br />

on health outcomes, especially in coronary<br />

patients.<br />

These recommendations confirm the high<br />

tolerance of NRT and their usefulness as<br />

excellent tools to help stop and re<strong>du</strong>ce<br />

tobacco use. They also stress the importance<br />

of supporting smokers and highlight the key<br />

role of the physician or another health<br />

worker or tobaccologist who must adjust the<br />

choice of <strong>therapy</strong> in order to meet the<br />

smoker’s needs and possibilities.<br />

Le <strong>Carla</strong>.<br />

Conclusions<br />

* It is not<br />

definite that<br />

carbon monoxyde<br />

is the<br />

primary cause<br />

of harm from<br />

smoking in<br />

pregnancy.


Specific<br />

indications,<br />

limitations and<br />

Contraindications<br />

Conclusion 10<br />

NRT for Cardiac patients<br />

The Experts from different European<br />

countries recommend the use of NRT for<br />

Cardiac Patients:<br />

- NRT is safe in Coronary Heart Disease<br />

(CHD) and does not worsen cardiac<br />

conditions.<br />

- NRT must be recommended to CHD<br />

patients who are smokers.<br />

- NRT can be prescribed at the exit of the<br />

Coronary Care Unit immediately after an<br />

acute coronary syndrome.<br />

- The prescription must aim at<br />

substituting for usual nicotine intake.<br />

Conclusion 11<br />

NRT for youngsters<br />

Preventing tobacco use among young<br />

people is a health priority.<br />

The risks are rapid addiction to nicotine,<br />

as well as to other drugs (alcohol, marijuana<br />

& cocaine) and to get involved in other risky<br />

behaviors. The risk of a quick addiction<br />

<strong>du</strong>ring this period of life is <strong>du</strong>e to the<br />

phenomenon of the Brain “pruning” which<br />

occurs only at this phase of life. This make<br />

the brain vulnerable and any kind of<br />

addictive drug used in this period of life will<br />

create permanent dopaminergic brain<br />

circuits for that drug. Tobacco is among the<br />

most powerful drugs to create this brain<br />

pleasure pathway.<br />

Concerning health problems, adolescents<br />

increase their resting heart rates and<br />

wheezing, gasping and shortness of breath;<br />

they will decrease their physical<br />

performance, their lung function and<br />

en<strong>du</strong>rance. They will experience slow<br />

growth of lung function.<br />

There are only weak experimental<br />

evidences that NRT is effective in smoking<br />

cessation of youngsters. It is considered a<br />

high priority to launch well designed<br />

conclusive smoking cessation studies with<br />

NRT in youth.<br />

Conclusion 12<br />

NRT for pregnant women<br />

Stopping smoking among pregnant<br />

women is a public health priority. Experts<br />

recommend:<br />

12.1. In case of planned pregnancy, to<br />

intro<strong>du</strong>ce a smoking cessation plan for both<br />

the woman and her partner/spouse.<br />

12.2. During pregnancy, to encourage<br />

cessation with behavioural support only<br />

before 3rd month.<br />

12.3. If no cessation with behavioural<br />

<strong>therapy</strong>:<br />

a. To discuss risks & benefits of NRT with<br />

the pregnant woman (and sometimes with<br />

husband or partner);<br />

b. To encourage decision to stop<br />

smoking with NRT. NRT however should<br />

then be combined with behavioural support<br />

as well.<br />

This recommendation is to allow NRT for<br />

pregnant women.<br />

From left to right, M. Hara, R. Schoberberger,<br />

G. Kotarov.<br />

12


The case of snus<br />

Conclusion 13<br />

A harmful and addictive substance<br />

There is no doubt that snus (swedish oral<br />

snuff) is a harmful and addictive substance.<br />

All tobacco pro<strong>du</strong>cts are potentially<br />

lethal and lead to tobacco related illnesses.<br />

The priority should be to encourage all<br />

tobacco users to quit and potential new<br />

customers not to start.<br />

After a thorough review of the published<br />

scientific evidence the International Agency<br />

for Research on Cancer (IARC) Monograph<br />

Working Group concluded in 2004 that<br />

smokeless tobacco is carcinogenic to<br />

humans. All types of smokeless tobacco<br />

contain different amounts of nicotine and<br />

nitrosamines. Hundreds of millions of people<br />

are addicted to smokeless tobacco, and its<br />

use by young people is increasing in many<br />

countries. The IARC Working Group found<br />

that there is no supportive evidence that the<br />

low prevalence of smoking in Sweden is <strong>du</strong>e<br />

to use of moist snus.<br />

Smoking and consumption of snus<br />

increase also the risk of diabetes and<br />

mortality after an acute myocardial<br />

infarction. In addition it increases the risk of<br />

vascular spasm and angina pectoris and the<br />

risk of complications after surgical<br />

treatment.<br />

13<br />

Conclusion 14<br />

Snus and smokeless pro<strong>du</strong>cts<br />

aren’t NRT<br />

If smokers need nicotine in cessation<br />

there are pro<strong>du</strong>cts containing clean nicotine.<br />

It is not the role of the public health<br />

community to encourage the tobacco<br />

companies to develop these pro<strong>du</strong>cts.<br />

In general, when using nicotine<br />

<strong>replacement</strong> pro<strong>du</strong>cts in smoking cessation,<br />

their use is an aid to cope with the nicotine<br />

withdraw symptoms only, followed by a<br />

gra<strong>du</strong>ally decreasing. The goal is the total<br />

abstinence of nicotine including NRT.<br />

It is very unlikely that the use of snuff will<br />

be gra<strong>du</strong>ally decreased if used in smoking<br />

re<strong>du</strong>ction or cessation. Moreover, discussions<br />

about health benefits of snuff remind us very<br />

much on the situation in the mid-1970s when<br />

the health hazards of “light” cigarettes were<br />

systematically downplayed.<br />

Conclusions<br />

Makla.


Conclusions<br />

Avec les contributions<br />

de :<br />

P. Bartsch, G. Lagrue,<br />

S. Nardini, J. Perriot.<br />

Intro<strong>du</strong>ction<br />

Le tabagisme est la première cause de mortalité<br />

prématurée dans le monde avec un taux<br />

de morbidité très important. Il est généralement<br />

lié à un comportement addictif, chronique<br />

et récidivant, renforcé par une dépendance<br />

physique in<strong>du</strong>ite principalement par la<br />

nicotine.<br />

Cette dépendance évolue sur de nombreuses<br />

années, souvent marquées de tentatives<br />

d’arrêt et de rechutes.<br />

Quelle que soit la stratégie de sevrage envisagée,<br />

un soutien psycho-comportemental ainsi<br />

qu’un traitement et un suivi médical dans le<br />

temps doivent être proposés, car ils augmentent<br />

les chances de sevrage des patients et ré<strong>du</strong>isent<br />

le risque de rechute.<br />

Le groupe de travail - Intervention <strong>du</strong> Dr Jean Perriot (France).<br />

Les médicaments sont sélectionnés selon<br />

divers critères : les antécédents <strong>du</strong> patient, le<br />

risque d'effets indésirables, le degré de dépendance,<br />

les co-morbidités associées, l'existence<br />

de contre-indications éventuelles et de précautions<br />

d’emploi, les risques éventuels de<br />

pharmacodépendance et de mésusage, les préférences<br />

<strong>du</strong> patient et le coût <strong>du</strong> traitement.<br />

Ce consensus d’experts a pour objectif de<br />

définir des propositions visant à standardiser<br />

les indications et les contre-indications des traitements<br />

de substitution nicotinique (TSN). Ces<br />

propositions sont notamment la ré<strong>du</strong>ction de<br />

la consommation, le sevrage temporaire, l’augmentation<br />

de la dose prescrite et la possibilité<br />

d’associer 2 TSN, l’usage des TSN chez les indivi<strong>du</strong>s<br />

âgés de moins de 18 ans, les femmes<br />

Conclusion enceintes et les patients 2 atteints de maladies<br />

cardio-vasculaires.<br />

14


Conclusion 1<br />

Traitement de substitution<br />

nicotinique - Vue d’ensemble<br />

Le traitement de substitution nicotinique<br />

(TSN) est un des traitements d’aide à l’arrêt<br />

<strong>du</strong> tabac le plus ancien et le mieux évalué.<br />

Selon une méta-analyse à partir de 132<br />

essais (plus de 40 000 fumeurs), l’Odd-ratio<br />

d’abstinence comparativement à un placebo<br />

est de 1,58 avec un recul de 12 mois (IC 95 % :<br />

1,66 à 1,88). Son rapport bénéfice / risque<br />

est optimal comparativement aux autres<br />

traitements pharmacologiques.<br />

1.1. Le choix de la dose est un important<br />

facteur de réussite.<br />

Il est indispensable de suivre les patients<br />

sous TSN pour adapter les posologies (selon<br />

les symptômes cliniques et la mesure <strong>du</strong> taux<br />

de CO dans l’air expiré), en associant<br />

éventuellement des formes orales et<br />

transcutanées. Bien que l’efficacité d’un TSN<br />

sans aucun soutien psychologique ait été<br />

démontrée, les chances de sevrage<br />

tabagique sont augmentées lorsque cette<br />

aide est fournie.<br />

1.2. Les traitements pharmacologiques<br />

sont indiqués chez les patients dépendants.<br />

Généralement, la dépendance pharmacologique<br />

est évaluée à l’aide <strong>du</strong> test de<br />

Fagerström qui évalue la dépendance<br />

nicotinique (FTND). Le score de dépendance<br />

<strong>du</strong> FTND n’est pas un critère permettant de<br />

prescrire un TSN mais simplement un score :<br />

une dépendance moyenne et élevée<br />

indiquerait qu’il est possible de recourir à un<br />

TSN afin de ré<strong>du</strong>ire les symptômes de<br />

sevrage.<br />

1.3. L’utilité d’un TSN s’appuie sur les<br />

éléments suivants :<br />

- une efficacité largement démontrée<br />

avec suivis à long terme,<br />

- un très faible risque d’effets<br />

indésirables graves,<br />

15<br />

- le caractère bénin de ses effets<br />

indésirables (souvent liés au mode<br />

d’administration).<br />

1.4. En cas de co-morbidités<br />

Les TSN peuvent être prescrits en cas de<br />

co-morbidités (maladie coronarienne,<br />

athérosclérose périphérique, bronchopneumopathie<br />

chronique obstructive,<br />

insuffisance rénale sévère, pathologie<br />

neuropsychiatrique, etc.) en raison de leurs<br />

profils d’effets indésirables très favorables.<br />

Conclusions


Pour un bon usage des TSN<br />

Les taux de réussite sont améliorés si la<br />

dose de nicotine quotidienne des TSN est<br />

proche de celle inhalée par les fumeurs.<br />

- l’usage d’un TSN doit toujours être<br />

associé à une thérapie comportementale.<br />

- la poursuite <strong>du</strong> tabagisme pendant un<br />

traitement de substitution nicotinique<br />

n’expose pas les patients à la survenue de<br />

complications cardiovasculaires.<br />

- la <strong>du</strong>rée <strong>du</strong> traitement doit être<br />

indivi<strong>du</strong>alisée selon le patient et notamment<br />

selon sa réaction à l’arrêt ou à une<br />

diminution progressive <strong>du</strong> traitement.<br />

En l’absence de données expérimentales,<br />

les recherches portant sur l’association d’un<br />

TSN et <strong>du</strong> Bupropion doivent être<br />

approfondies. De la même manière,<br />

l’association d’un TSN à la varénicline n’a pas<br />

encore été étudiée (en juin 2008). Ces<br />

associations ne sont donc pas<br />

recommandées.<br />

Situation<br />

réglementaire<br />

par pays<br />

Les traitements de substitution<br />

nicotinique sont disponibles dans toute<br />

l’Europe. Les travaux et les publications<br />

scientifiques, ainsi que l’expérience acquise<br />

par l’usage régulier de ces traitements,<br />

confirment que ces mesures<br />

d’accompagnement représentent un intérêt<br />

majeur pour le fumeur en général et pour le<br />

sevrage tabagique en particulier.<br />

Outre le sevrage tabagique, leur usage,<br />

indications et contre-indications sont<br />

différents dans les 27 pays de l'UE.<br />

Le tableau pages 24 à 29 décrit<br />

de manière comparative, pays par pays, le<br />

statut, les indications et les contreindications<br />

des TSN. Il témoigne de la grande<br />

diversité entre les 27 pays de l’Union<br />

Européenne. Ce consensus d’experts définit<br />

des propositions visant à standardiser les<br />

indications et les contre-indications des<br />

traitements de substitution nicotinique.<br />

Augmentation de<br />

la dose prescrite<br />

et possibilité<br />

d’associer 2 TSN<br />

Conclusion 3<br />

Adaptation de la dose indivi<strong>du</strong>elle<br />

Les recommandations <strong>du</strong> « Panel<br />

d’experts », constitué de tabacologues<br />

européens, sont les suivantes :<br />

3.1. L’efficacité d’une dose initiale fixe de<br />

TSN n’a pas été démontrée. Par opposition à<br />

des doses fixes (élevées ou faibles),<br />

l’adaptation indivi<strong>du</strong>elle des doses pourrait<br />

donner de meilleurs résultats.<br />

3.2. La dose pourrait être ajustée en<br />

mesurant la cotinine salivaire avant le<br />

sevrage tabagique puis en ajustant la dose<br />

quotidienne de TSN afin d’obtenir la même<br />

concentration de cotinine salivaire après<br />

l’arrêt. Il serait ainsi possible d’obtenir un<br />

substitut nicotinique totalement équivalent.<br />

Certaines études en cours devraient<br />

permettre de répondre à ces questions.<br />

3.3. L’association de plusieurs TSN est plus<br />

efficace qu’un TSN unique (principalement<br />

patchs et formes orales).<br />

3.4. Avant le sevrage, un pré-traitement<br />

par un TSN pourrait présenter un intérêt.<br />

3.5. Un TSN peut être prolongé au-delà<br />

de 3 mois si nécessaire et aussi longtemps<br />

que possible.<br />

3.6. L’efficacité d’un TSN peut être<br />

améliorée par une thérapie cognitivocomportementale<br />

(TCC).<br />

16


Les TSN en<br />

abstinence<br />

temporaire (AT)<br />

Conclusion 4<br />

Forts de leur pratique quotidienne, les<br />

experts recommandent un TSN pour<br />

abstinence temporaire dans trois situations :<br />

4.1. Chez les fumeurs n’ayant aucune<br />

intention d'arrêter de fumer mais qui se<br />

retrouvent dans des environnements non<br />

fumeurs et, de ce fait, souffrent de craving et<br />

<strong>du</strong> syndrome de manque à la nicotine.<br />

4.2. Chez les fumeurs hospitalisés qui ne<br />

veulent pas cesser de fumer. Un TSN doit être<br />

envisagé comme un traitement de première<br />

intention, <strong>du</strong> fait de son action rapide et de<br />

la sécurité de son usage en cas d’interactions<br />

médicamenteuses.<br />

4.3. Chez les fumeurs subissant une<br />

chirurgie élective qui ne veulent pas cesser<br />

de fumer. Dans ce cas, on recommande un AT<br />

au moins 8-4 semaines avant l’intervention<br />

chirurgicale. En outre, bien qu’il soit possible<br />

d’utiliser d’autres médicaments en seconde<br />

intention, le TSN doit être envisagé comme<br />

un traitement de première intention.<br />

17 Conclusions<br />

Note 4:Definition d’une AT<br />

Un fumeur en abstinence temporaire (AT)<br />

peut être défini comme un fumeur n’ayant<br />

aucune intention d’arrêter de fumer mais<br />

qui, pour différentes raisons, doit cesser<br />

son tabagisme pendant une période donnée<br />

: réunions, hôpital, unité psychiatrique,<br />

transport, lieu de travail, restaurant…<br />

De gauche à droite,<br />

D. Thomas, J. Perriot, J-M Pibourdin (caché), I Berlin (de dos).


Le bon usage des<br />

TSN dans la<br />

ré<strong>du</strong>ction de<br />

consommation <strong>du</strong><br />

tabac<br />

Conclusion 5<br />

Vers un arrêt définitif<br />

Ré<strong>du</strong>ire sa consommation de tabac est<br />

une décision qui doit être soutenue<br />

médicalement et qui doit avoir pour objectif<br />

d'amener à terme le fumeur à décider l’arrêt<br />

total, avec l’aide de son médecin, d’un autre<br />

professionnel de santé ou d’un tabacologue.<br />

Conclusion 6<br />

Note 5: La ré<strong>du</strong>ction de consommation de tabac n’a<br />

Atteindre une ré<strong>du</strong>ction de 50 %<br />

Cette recommandation vise à obtenir une<br />

ré<strong>du</strong>ction de 50 % de la consommation<br />

habituelle <strong>du</strong> fumeur sans phénomène de<br />

compensation (vérifié par une mesure <strong>du</strong> CO<br />

expiré).<br />

Si les objectifs ne sont pas atteints au<br />

bout de 6 mois (arrêt <strong>du</strong> tabac ou ré<strong>du</strong>ction<br />

de 50 %), la stratégie doit être considérée<br />

comme un échec et remise en question.<br />

Dans le cas contraire (le fumeur a bien<br />

ré<strong>du</strong>it sa consommation de 50 %), le<br />

médecin doit veiller à valider régulièrement<br />

la ré<strong>du</strong>ction, vérifier la tolérance au<br />

traitement et accroître la motivation <strong>du</strong><br />

fumeur à décider un arrêt définitif.<br />

montré qu’un seul bénéfice : l’augmentation des chances<br />

d’arrêt définitif<br />

Le tabagisme est responsable d'une importante morbidité et mortalité. La<br />

cigarette est le mode de consommation principal <strong>du</strong> tabac, le plus toxique et<br />

addictogène. Bien que la nicotine soit l'agent provoquant la dépendance, les<br />

risques sont essentiellement liés aux autres composants de la fumée pro<strong>du</strong>its<br />

par la combustion <strong>du</strong> tabac; la nicotine peut-être également nocive.<br />

Il n'y a pas de valeur seuil en matière de toxicité tabagique mais la toxicité est<br />

généralement dose-dépendante. Ainsi, la meilleure façon de ré<strong>du</strong>ire à son<br />

minimum les risques in<strong>du</strong>its par le tabagisme est de ne jamais commencer ou<br />

de s'arrêter définitivement.<br />

Il est néanmoins licite de proposer une ré<strong>du</strong>ction de consommation <strong>du</strong> tabagisme<br />

aux fumeurs :<br />

- qui sont en échec quant à leur tentative de sevrage ;<br />

- qui ne peuvent ou ne veulent s'arrêter de fumer tout de suite ;<br />

- qui ne veulent pas s'arrêter de fumer mais sont prêts à ré<strong>du</strong>ire leur consommation<br />

;<br />

- qui se préparent à un arrêt définitif et veulent faciliter ce dernier.<br />

18


Conclusion 7<br />

Formes orales ou patchs pour<br />

ré<strong>du</strong>ire la consommation de tabac<br />

Pour qu’elle soit efficace, la ré<strong>du</strong>ction de<br />

la consommation doit être associée à un TSN.<br />

Les formes orales seront prioritairement<br />

choisies en respectant les goûts <strong>du</strong> fumeur.<br />

L'association d’un patch et d’une forme<br />

orale est également possible. Il faut garder à<br />

l'esprit que la nicotinémie est élevée (ou plus<br />

élevée) lorsqu’un fumeur sous TSN ne ré<strong>du</strong>it<br />

pas sa quantité de cigarettes de la manière<br />

prévue.<br />

Les experts soulignent que des pro<strong>du</strong>its<br />

<strong>du</strong> tabac à usage oral utilisés dans certains<br />

pays visant à ré<strong>du</strong>ire la consommation de<br />

cigarettes (par exemple le snus), ne sont pas<br />

sans risque car ils peuvent in<strong>du</strong>ire des<br />

pathologies somatiques et des addictions : ils<br />

doivent donc donner lieu à des études<br />

approfondies avant que les pouvoirs publics<br />

n’autorisent leur vente.<br />

Voir Conclusion 14.<br />

Conclusion 8<br />

La ré<strong>du</strong>ction chez la femme<br />

enceinte<br />

Autant les conséquences <strong>du</strong> tabagisme<br />

pendant la grossesse sont dose-dépendantes<br />

(par ex, la ré<strong>du</strong>ction <strong>du</strong> poids à la naissance),<br />

autant une femme enceinte doit essayer<br />

d’arrêter de fumer pendant sa grossesse. Si<br />

elle ne peut s’arrêter, elle doit ré<strong>du</strong>ire son<br />

tabagisme autant que possible. Si une<br />

femme ne peut s’arrêter de fumer par les<br />

seules méthodes comportementales, alors<br />

elle peut envisager l’usage de substituts<br />

nicotiniques pour l’aider à s’arrêter (voir<br />

conclusion 12).<br />

Une grande partie de la toxicité <strong>du</strong><br />

tabagisme observée pendant la grossesse<br />

peut être provoquée par les pro<strong>du</strong>its de<br />

combustion* (voir notule) <strong>du</strong> tabac (par<br />

19<br />

exemple, monoxyde de carbone ou<br />

hydrocarbures aromatiques polycycliques)<br />

aussi les TSN sont moins à risques que la<br />

poursuite <strong>du</strong> tabagisme.<br />

Cependant l’impact d’une exposition à<br />

des apports cumulés en nicotine (TSN et<br />

poursuite <strong>du</strong> tabagisme), comparé à l’usage<br />

de TSN pour ré<strong>du</strong>ire la consommation en cas<br />

de grossesse reste inconnu. Des études sont<br />

nécessaires pour déterminer si l’usage des<br />

TSN pour ré<strong>du</strong>ire la consommation (et non<br />

pour arrêter) pendant la grossesse, diminue<br />

également le risque toxique et que cet usage<br />

est moins à risque pour le fœtus que la<br />

poursuite <strong>du</strong> tabagisme maternel.<br />

Conclusion 9<br />

La ré<strong>du</strong>ction chez le patient<br />

coronarien<br />

De nombreuses études ont confirmé la<br />

parfaite sécurité <strong>du</strong> TSN dans le cadre d’une<br />

ré<strong>du</strong>ction de la consommation de tabac chez<br />

les patients cardiaques (y compris les patients<br />

coronariens).<br />

Ainsi, même s’il est important d’insister<br />

sur la nécessité d’une abstinence totale chez<br />

les patients coronariens pour effectivement<br />

ré<strong>du</strong>ire le risque <strong>du</strong> tabagisme, la ré<strong>du</strong>ction<br />

de consommation peut éventuellement être<br />

proposée comme un premier pas vers l’arrêt<br />

total chez des fumeurs non motivés ou se<br />

sentant incapables d’arrêter d’emblée.<br />

Cependant, les bénéfices réels d’une telle<br />

stratégie ne sont pas connus, en particulier<br />

chez les patients coronariens.<br />

Ces recommandations confirment la<br />

bonne tolérance et l'utilité des TSN : ce sont<br />

d’excellents outils d'aide à l'arrêt et<br />

ré<strong>du</strong>ction <strong>du</strong> tabagisme. Elles soulignent<br />

également l’importance d’un soutien aux<br />

fumeurs et indiquent le rôle essentiel <strong>du</strong><br />

médecin, d’un autre professionnel de santé<br />

ou d’un tabacologue, qui doit choisir le<br />

traitement afin de répondre aux besoins et<br />

aux possibilités <strong>du</strong> fumeur.<br />

Conclusions<br />

*Il n’a pas<br />

été démontré<br />

que le<br />

monoxyde de<br />

carbone est le<br />

principal<br />

élément nocif<br />

en cas de<br />

tabagisme<br />

pendant la<br />

grossesse.


Indications<br />

spécifiques,<br />

limites et<br />

contre-indications<br />

Conclusion 10<br />

TSN chez les patients cardiaques<br />

Les experts des différents pays européens<br />

recommandent l’utilisation des TSN chez les<br />

patients cardiaques :<br />

- Un TSN est sûr en cas de coronaropathie<br />

et n'aggrave pas les pathologies cardiaques,<br />

- Le TSN doit être recommandé chez les<br />

patients coronariens qui fument,<br />

- Le TSN peut être prescrit immédiatement<br />

après un syndrome coronaire aigu,<br />

dès la sortie de l’Unité de Soins Intensifs,<br />

- La prescription <strong>du</strong> TSN doit viser à<br />

remplacer l’apport nicotinique à son niveau<br />

de consommation habituelle.<br />

Conclusion 11<br />

TSN chez les adolescents<br />

La prévention <strong>du</strong> tabagisme chez les<br />

jeunes est une priorité en santé publique.<br />

Les risques encourus sont une rapide<br />

addiction à la nicotine, à celle d’autres<br />

drogues (alcool, marijuana et cocaïne) ainsi<br />

que d’autres comportements à risque. Ce<br />

risque d'acquisition rapide d'une<br />

dépendance pendant cette phase de la vie<br />

est lié au "Brain Pruning" qui arrive en cette<br />

période. Cette vulnérabilité, quelque soit le<br />

pro<strong>du</strong>it addictogène, participera à la<br />

création et au maintien de circuits<br />

dopaminergiques spécifiques <strong>du</strong> pro<strong>du</strong>it<br />

consommé. Le tabac est l'une des plus<br />

importantes drogues qui met en place ce<br />

type de circuit de renforcement <strong>du</strong> système<br />

de récompense <strong>du</strong> cerveau.<br />

Les problèmes de santé encourus par les<br />

adolescents sont les suivants : augmentation<br />

de la fréquence cardiaque au repos,<br />

respiration sifflante, halètement,<br />

essoufflement; ré<strong>du</strong>ction de la performance<br />

physique, de la fonction pulmonaire et de<br />

l’en<strong>du</strong>rance.<br />

Les données démontrant qu’un TSN est<br />

efficace dans le sevrage tabagique chez les<br />

jeunes sont peu nombreuses. Il est donc<br />

prioritaire de mener des études concluantes<br />

sur l’arrêt <strong>du</strong> tabac avec les TSN chez les<br />

adolescents.<br />

Conclusion 12<br />

TSN chez la femme enceinte<br />

L’arrêt <strong>du</strong> tabac chez la femme<br />

enceinte est une priorité de santé publique.<br />

Les recommandations des experts sont les<br />

suivantes :<br />

12.1. Si une grossesse est envisagée,<br />

établir un programme d’arrêt <strong>du</strong> tabac pour<br />

la femme et son conjoint / époux.<br />

12.2. Pendant la grossesse, mettre en<br />

place un soutien comportemental<br />

(uniquement avant le 3 e mois) pour<br />

encourager l’arrêt <strong>du</strong> tabac.<br />

12.3. Si le traitement comportemental est<br />

inefficace :<br />

a. Expliquer à la femme enceinte (et<br />

parfois à son conjoint ou partenaire) les<br />

risques et les bénéfices d’un TSN,<br />

b. Encourager la décision d’arrêter de<br />

fumer avec un TSN. Le TSN doit être en<br />

revanche associé à une thérapie<br />

comportementale.<br />

Cette recommandation a pour objectif de<br />

permettre l’usage des TSN chez la femme<br />

enceinte.<br />

20


Le cas <strong>du</strong> Snus<br />

Conclusion 13<br />

Une substance nocive et addictive<br />

Le caractère nocif et addictif <strong>du</strong> Snus<br />

(snuff oral suédois) n’est plus à démontrer.<br />

Tous les pro<strong>du</strong>its dérivés <strong>du</strong> tabac sont<br />

potentiellement mortels et entraînent des<br />

maladies associées au tabac. Encourager tous<br />

les utilisateurs de tabac à arrêter et les<br />

nouveaux « clients » potentiels à ne pas<br />

commencer est donc une priorité.<br />

En 2004, après un examen approfondi des<br />

données scientifiques publiées, le groupe de<br />

travail des monographies <strong>du</strong> CIRC, Centre<br />

International de Recherche sur le Cancer, a<br />

conclu que le tabac sans fumée était<br />

carcinogène chez les humains. Tous les types<br />

de tabac contiennent différentes quantités<br />

de nicotine et de nitrosamine. Des centaines<br />

de millions d’indivi<strong>du</strong>s sont dépendants au<br />

tabac sans fumée, son utilisation par les<br />

jeunes augmentant dans de nombreux pays.<br />

Le groupe de travail de l’IARC n’a identifié<br />

aucune donnée étayant un lien entre la<br />

faible prévalence <strong>du</strong> tabagisme en Suède et<br />

l’usage de snus humide.<br />

Le tabagisme et la consommation de Snus<br />

augmentent également le risque de diabète<br />

et la mortalité suite à un infarctus <strong>du</strong><br />

myocarde. En outre, on observe une<br />

augmentation <strong>du</strong> risque de spasme<br />

vasculaire, d’angine de poitrine et de<br />

complications post-chirurgicaux.<br />

21<br />

Conclusion 14<br />

Le Snus et les pro<strong>du</strong>its sans fumée<br />

ne sont pas des TSN<br />

Il existe des pro<strong>du</strong>its contenant de la<br />

nicotine propre qui permettent de combler<br />

le besoin en nicotine des fumeurs sous<br />

sevrage tabagique. En tant que<br />

professionnels de santé, les experts ne<br />

veulent en aucun cas encourager les<br />

manufacturiers <strong>du</strong> tabac à développer ce<br />

type de pro<strong>du</strong>its.<br />

En général, lorsque l’on prend des<br />

pro<strong>du</strong>its de substitution nicotinique pendant<br />

un sevrage tabagique, leur utilisation est une<br />

aide pour prévenir les symptomes de<br />

sevrage, aide suivie d’une ré<strong>du</strong>ction<br />

progressive. L’objectif visé est un sevrage<br />

définitif en nicotine (y compris TSN).<br />

S’il est utilisé pour la ré<strong>du</strong>ction ou l’arrêt<br />

<strong>du</strong> tabagisme, une diminution progressive<br />

<strong>du</strong> snus sera peu probable. De plus, des<br />

discussions sur les bénéfices de santé <strong>du</strong> snus<br />

nous rappellent clairement la situation<br />

observée au milieu des années 1970, lorsque<br />

les risques santé des cigarettes « légères »<br />

étaient systématiquement sous-estimés.<br />

Conclusions<br />

Snus.


Session 1<br />

Indications and<br />

Contraindications for<br />

<strong>Nicotine</strong> Replacement<br />

Therapies by<br />

representatives of EU<br />

countries<br />

23


COUNTRY NRT available<br />

AUSTRIA<br />

BELGIUM<br />

BULGARIA<br />

CYPRUS<br />

CZECH<br />

REPUBLIC<br />

DENMARK<br />

ESTONIA<br />

FINLAND<br />

*Gum<br />

*Patch<br />

*Microtab<br />

*Inhaler<br />

*Nasal spray<br />

*Sublingual<br />

*Patch (21/14/7 and 15/10/5 mg)<br />

*Microtab<br />

*Lozenge<br />

*Inhaler<br />

*Gum<br />

*Patch (Nicotinnell) (21/14/7 mg)<br />

*Gum(Nicorette) (2/4 mg)<br />

*Lozenge (1,5 mg)<br />

*Patch<br />

*GUM<br />

Prescription<br />

<strong>du</strong>ration<br />

* Recommended for 3<br />

months (no prescription)<br />

* Long term use (> 3<br />

months) if necessary<br />

* Usually NRTs are used < 3<br />

months<br />

Consumption<br />

re<strong>du</strong>ction<br />

Long term<br />

re<strong>du</strong>ction<br />

may only work<br />

for nicotine<br />

dependant<br />

smokers if NRT<br />

are used<br />

24<br />

Temporary<br />

cessation<br />

Yes<br />

Increasing the dose<br />

and combine<br />

2 NRTs<br />

*Yes<br />

*Motivation for using the<br />

sufficient dose<br />

*2 NRT are useful in smokers<br />

who are trough maintainers<br />

and peak-seekers<br />

> 3 months (6 months) Yes Yes Yes<br />

3 months to 6 months<br />

Not studied Not studied No<br />

Yes<br />

Yes<br />

Yes<br />

A least 1 month<br />

for smokers<br />

who are going<br />

to be operated<br />

or hospitalized<br />

Smoking cessation clinics<br />

prescribe<br />

combined NRT patches<br />

and gum or<br />

NRT + bupropion<br />

Nicorette gum 2 and 4 mg 12 w up to 12 m Yes Yes Not mentioned<br />

Nicorette inhaler 10 mg 12 w up to 12 m Yes Yes Not mentioned<br />

Nicorette invisipatch 25, 15, 10 mg 12 w up to 6 m Not mentioned Not mentioned Not mentioned<br />

Niquitin Clear patch 14, 21 mg (7 mg<br />

not sold)<br />

Niquitin lozenge 2, 4 mg (currently<br />

planning to stop the sale)<br />

*<strong>Nicotine</strong> gum (2/4 mg)<br />

*Patch (16h 15/10/5 mg and 24h<br />

21/14/7 mg)<br />

*Nasal spray<br />

*Inhaler<br />

*Sublingual tablet<br />

*<strong>Nicotine</strong> gum (2/4 mg)<br />

*Patch (16h 15/10/5 mg and 24h<br />

21/14/7 mg)<br />

*Inhaler<br />

*Sublingual tablet<br />

*Lozenge (1 mg)<br />

10 w Not mentioned Not mentioned Not mentioned<br />

12 w Not mentioned Not mentioned Not mentioned<br />

Sufficient <strong>du</strong>ration<br />

of use:<br />

3 to 6 months<br />

*Yes, if no<br />

motivation to<br />

stop<br />

*Encouragement<br />

to stop<br />

by medical<br />

personnel<br />

*Yes, if no motivation<br />

to stop<br />

*Encouragement<br />

to stop<br />

by medical<br />

personnel<br />

*Yes, adequate dose and a<br />

sufficient <strong>du</strong>ration of use<br />

should be tailored<br />

*Combination especially for<br />

those relapsed in<br />

mono<strong>therapy</strong>


NRTs Under 18 Precautions<br />

NRTs in case of<br />

Cardio-Vascular<br />

diseases<br />

NRTs in case of Pregnancy<br />

Yes Yes With caution<br />

Yes Avoid<br />

Pratically no<br />

Only in dependant<br />

adolescents with<br />

behavioral support<br />

Not without physicians<br />

consultation<br />

Not without physicians<br />

consultation<br />

Not without physicians<br />

consultation<br />

No<br />

No<br />

*Well grounded in<br />

smoking cessation<br />

among nicotine<br />

dependant<br />

adolescents<br />

*The best results<br />

can be achieved<br />

if nicotine<br />

<strong>replacement</strong><br />

<strong>therapy</strong> among<br />

adolescents<br />

is connected with<br />

the media<br />

campaigns<br />

*Pregnancy and breast<br />

feeding without the<br />

supervision of gynecologist<br />

*Unstable angina<br />

*Severe arrhythmia<br />

Under precaution and following<br />

a consultation with<br />

cardiologist<br />

To avoid<br />

*After previous failure<br />

of behavioral counseling<br />

*Pro<strong>du</strong>cts on an<br />

intermittent base<br />

*Supervision by the<br />

gynecologist<br />

No applied<br />

treatment<br />

*Try to stop smoking before<br />

conception<br />

*TCC<br />

*Short NRT use if pregnant<br />

woman still smokes<br />

*Prescription<br />

*OTC (no prescription)<br />

*Reimbursement<br />

*OTC<br />

*No reimbursement<br />

*OTC<br />

*No reimbursement<br />

*OTC<br />

*No reimbursement<br />

*OTC (gum,lozenges,<br />

patch)<br />

*No reimbursment,<br />

annual tender for<br />

patches.<br />

Nonsmoker After physicians consultation After physicians consultation OTC, not reimbursed<br />

Nonsmoker After physicians consultation After physicians consultation OTC, not reimbursed<br />

Nonsmoker After physicians consultation After physicians consultation OTC, not reimbursed<br />

Nonsmoker, fresh CV event,<br />

pregnancy, age under 18<br />

Nonsmoker,<br />

phenylketonuria, age<br />

under 18, CV event<br />

within past 4 weeks<br />

*With CHD<br />

*Pregnant and nursing<br />

mothers<br />

*Myocardial infarction<br />

*Unstable angina pectoris<br />

*Arrhythmias<br />

No No OTC, not reimbursed<br />

Not if within past 4 weeks After physicians consultation OTC, not reimbursed<br />

With caution With caution<br />

*OTC<br />

*No reimbursement<br />

*OTC<br />

*Prescription only for<br />

under 18 years old<br />

*No reimbursement<br />

*Available in shops,<br />

kiosks, service stations<br />

25 Session 1 - Presentation of representatives of EU countries<br />

COUNTRY<br />

AUSTRIA<br />

BELGIUM<br />

BULGARIA<br />

CYPRUS<br />

CZECH<br />

REPUBLIC<br />

DENMARK<br />

ESTONIA<br />

FINLAND


COUNTRY NRT available<br />

FRANCE<br />

GERMANY<br />

GREECE<br />

HUNGARY<br />

IRLANDE<br />

ITALY<br />

LETVIA<br />

LITHUANIA<br />

LUXEMBOURG<br />

*Gum (2/4 mg)<br />

*Lozenge (1,5/2,5 mg)<br />

*Inhaler<br />

*Sublingual tablet (2 mg)<br />

*Patch<br />

*<strong>Nicotine</strong> gum (2/4 mg)<br />

*Patch (16h 15/10/5 mg and 24h<br />

21/14/7 mg)<br />

*Nasal spray<br />

*Inhaler<br />

*Sublingual tablet<br />

*Gum (2/4 mg)<br />

*Patch (16/10/5/21/14/7 mg)<br />

*Lozenge (1,5 mg)<br />

*Patch<br />

(24/16 hours)<br />

*Gum (2/4 mg)<br />

*Lozenge<br />

*<strong>Nicotine</strong> gum (2/4 mg)<br />

*Patch (16h 15/10/5 mg and 24h<br />

21/14/7 mg)<br />

*Nasal spray<br />

*Inhaler<br />

*Sublingual tablet<br />

*Patch<br />

*Inhaler<br />

*Lozenge<br />

*Gum<br />

*Nicopatch<br />

*Nicopass<br />

*Nicotablet<br />

*Nicorette<br />

Prescription<br />

<strong>du</strong>ration<br />

12 months<br />

12 months<br />

12 months<br />

3 months<br />

3 months<br />

Recommended<br />

for 3 months<br />

Consumption<br />

re<strong>du</strong>ction<br />

Yes<br />

Yes<br />

Yes<br />

Yes<br />

No<br />

*Inability to stop smoking<br />

*Mean mental disorder<br />

*Unwilling to quit<br />

Temporary<br />

cessation<br />

Yes<br />

Yes<br />

Yes<br />

Yes<br />

No<br />

A least 1 month for smokers<br />

who are going to be<br />

operated<br />

or hospitalized<br />

Increasing the<br />

dose<br />

and combine<br />

2 NRTs<br />

Yes / No<br />

Yes / No<br />

Yes<br />

No<br />

Yes (not for all)<br />

Smoking cessation<br />

clinics prescribe<br />

combined NRT<br />

patches and gum or<br />

NRT + bupropion<br />

No Yes Yes<br />

3 months Only for inhaler Yes No<br />

1 to 3<br />

months<br />

Sometimes No No<br />

26


NRTs<br />

Under 18<br />

Yes for pro<strong>du</strong>ctsregistered<br />

in a national<br />

proce<strong>du</strong>re<br />

Only in<br />

dependant<br />

adolescents<br />

with<br />

behavioral<br />

support<br />

Officially<br />

contraindicated<br />

but in<br />

practice<br />

it is allowed<br />

No<br />

Yes<br />

Precautions<br />

*Pregnancy and breast feeding<br />

without the supervision<br />

of gynecologist<br />

*Unstable angina<br />

*Severe arrhythmia<br />

*Active gastric ulcer<br />

*Dental prothesis<br />

*Generalized skin disease<br />

*Peptic ulcer<br />

*Dermatitis<br />

*Overdosing<br />

*Under 18<br />

*Cardiovascular diseases<br />

*Pregnancy<br />

NRTs in case of<br />

Cardio-Vascular<br />

diseases<br />

NRTs in case of Pregnancy<br />

Yes Yes<br />

NRT recommended for<br />

CHD<br />

patients who are smokers<br />

Contraindicated in recent<br />

heart infraction, clinically<br />

relevant arrhythmias,<br />

unstable anginer pectoris<br />

Contraindicated<br />

in acute situations<br />

27<br />

*Try to stop smoking before<br />

conception<br />

*TCC<br />

*Short NRT use if pregnant<br />

woman still smokes<br />

Officially contraindicated<br />

but it is allowed if the<br />

patient is unable to stop<br />

on his own<br />

Contraindicated<br />

Yes Yes<br />

*Prescription<br />

*OTC (no prescription)<br />

*Reimbursement<br />

Reimbursement<br />

50 euros fixed price<br />

* Gum: OTC for a single<br />

dose of 10mg and a<br />

maximum daily<br />

dose of 64mg<br />

* Inhaler: maximum<br />

strenght 10mg maximum<br />

daily dose of 64mg<br />

*OTC (gum, patch)<br />

*Prescription<br />

(nasal spray, oral inhaler)<br />

*From 2009 probably<br />

reimbursement<br />

*OTC<br />

*No reimbursement<br />

* Nasal Spray Prescription<br />

* OTC for other pro<strong>du</strong>cts<br />

*OTC<br />

*No reimbursement<br />

(in April 2008 a law has<br />

been approved<br />

for granting reimbursement<br />

for<br />

cessation but, so far, it is<br />

not enforced)<br />

*OTC<br />

100 euros after 8 months<br />

Session 1 - Presentation of representatives of EU countries<br />

COUNTRY<br />

FRANCE<br />

GERMANY<br />

GREECE<br />

HUNGARY<br />

IRLANDE<br />

ITALY<br />

LETVIA<br />

LITHUANIA<br />

LUXEMBOURG


COUNTRY NRT available<br />

MALTA<br />

POLAND<br />

PORTUGAL<br />

ROMANIA<br />

SLOVAKIA<br />

SLOVENIA<br />

SPAIN<br />

SWEDEN<br />

SWITZERLAND<br />

THE<br />

NETHERLANDS<br />

UNITED<br />

KINGDOM<br />

*Gum<br />

*Oral inhaler<br />

*Patch<br />

*Nasal spray<br />

*Sublingual tablets<br />

*Gum<br />

(2/4 mg)<br />

*Patch (15h/16mg)<br />

*Gum (2/ 4 mg)<br />

*Patch (5/10/15 mg 24h<br />

and 7/14/21 mg 24h)<br />

*Tablets (1 mg)<br />

*<strong>Nicotine</strong> gum (2/4 mg)<br />

*Patch (16h 15/10/5 mg<br />

and 24h 21/14/7 mg)<br />

*Nasal spray<br />

*Inhaler<br />

*Sublingual tablet<br />

*Gum<br />

*Oral inhaler<br />

*Patch<br />

*Sublingual<br />

*Patch (16/24h)<br />

*Gum (2/4 mg)<br />

*Sublingual tablet<br />

*Lozenge<br />

*Gum (2/4mg)<br />

*Nasal spray<br />

*Oral inhaler<br />

*Patch (16/24h)<br />

*Sublingual<br />

*Lozenge<br />

Prescription<br />

<strong>du</strong>ration<br />

3 months<br />

Usually, people do not<br />

use NRT for so long<br />

2 months<br />

Consumption<br />

re<strong>du</strong>ction<br />

Temporary<br />

cessation<br />

Increasing the<br />

dose<br />

and combine<br />

2 NRTs<br />

No Yes Yes<br />

Promoted by the<br />

pro<strong>du</strong>cer of the NRT<br />

or Not promoted<br />

NRT is not recommended<br />

in temporary cessation<br />

but it is practiced<br />

Maximum 6 months Yes No<br />

3 months Yes Yes<br />

*Gum 4mg : 4 to 6 weeks<br />

then 2 mg up to 1 year<br />

*Patch: max 3 month<br />

*Tablet : decrease dose<br />

after 2/3 months<br />

*Lozenge : decrease dose<br />

after 3 months<br />

General physicians can<br />

only prescribe for 2<br />

weeks and continue if the<br />

smoker stops<br />

But physicians can<br />

in practice prescribe<br />

for longer<br />

Nicotirette is registered for<br />

consumption re<strong>du</strong>ction<br />

Treatment guideline does<br />

not (yet) recommend<br />

Yes<br />

(licensed for certain<br />

pro<strong>du</strong>cts)<br />

28<br />

Not recommended<br />

in treatment guideline<br />

(yet)<br />

Yes<br />

(licensed for certain pro<strong>du</strong>cts)<br />

Yes<br />

Most health<br />

professionals<br />

do but health<br />

authorities<br />

do not approve<br />

*Official : No<br />

(compendium)<br />

*Guidelines : Yes<br />

(practice)<br />

Not recommended<br />

Indivi<strong>du</strong>al physicians<br />

do so in practice<br />

Recommended<br />

in a recent<br />

guidance as<br />

possibly beneficial


NRTs Under 18 Precautions<br />

NRTs in case of<br />

Cardio-Vascular<br />

diseases<br />

NRTs in case of Pregnancy<br />

In general no In general no In general no<br />

No,<br />

but used in<br />

practice<br />

No<br />

*Official : No<br />

*Practice : Yes<br />

*Pregnancy (for patches)<br />

*Under 18<br />

*Dermatosis<br />

*Other local problems<br />

*Skin problems<br />

*Denture problems<br />

*Cardio-vascular problems<br />

*Gastric problems<br />

*Official :<br />

No combination<br />

No longer than 3 months<br />

*Practice : Combination<br />

More than 3 months<br />

* This use is not<br />

safe<br />

* Contra-indicated<br />

in inserts,<br />

Hypertension, feochromocytom,<br />

research will be<br />

angina pectoris, cerebro-vascular<br />

con<strong>du</strong>cted in<br />

insufficiency, vascular and heart<br />

2009/2010 on<br />

disturbances,hyperthyroid, dia-<br />

effectivitiy of<br />

betes, liver/kidney insufficiency<br />

patches for<br />

asthma, chronic throat, age 65 years, irritation of skin<br />

* Youth are not<br />

interested in<br />

quitting with<br />

help<br />

Can be prescribed<br />

(physician<br />

makes decision)<br />

Not absolutely<br />

contraindicated<br />

As listed in the<br />

British National Formulary<br />

Yes<br />

Precaution with<br />

the use of patches<br />

With caution No<br />

*Official : No<br />

*Practice : Yes<br />

*Can be used<br />

(level 3 evidence)<br />

*If seems saver than<br />

smoking<br />

*A physician must be<br />

involved<br />

Not a contra-indication<br />

Caution urged with unstable<br />

vascular condition<br />

29<br />

No<br />

*Less harmful than smoking,<br />

but still risk full NRT when<br />

other treatment failed or<br />

when previous<br />

pregnancy failed<br />

do to smoking<br />

*A physician must be involved<br />

(gynecologist)<br />

A caution, rather than<br />

contra-indication<br />

Use is permitted as long as<br />

woman discuss this with an<br />

health professional<br />

*Prescription<br />

*OTC (no prescription)<br />

*Reimbursement<br />

*OTC (gum)<br />

*Prescription<br />

(nasal spray, oral inhaler,<br />

patch, sublingual)<br />

*No reimbursement<br />

*OTC<br />

*Reimbursement (only<br />

patches)<br />

*OTC<br />

*Reimbursement depend<br />

on province/community<br />

* Nasal Spray Prescription<br />

* OTC for other pro<strong>du</strong>cts<br />

*OTC<br />

(gum, sublingual, patch)<br />

*Prescription (oral inhaler)<br />

*No reimbursement<br />

*OTC<br />

*No reimbursement yet<br />

* Possible in 2010 for a 12<br />

week treatment<br />

*OTC<br />

*Hyper and supermarkets<br />

*Prescription costs E7 (E8-<br />

9) but free in pregnancy,<br />

certain medical problems,<br />

elderly and young a<strong>du</strong>lts,<br />

poor people-<br />

The cost of providing a<br />

prescription to the general<br />

physician is nothing<br />

Session 1 - Presentation of representatives of EU countries<br />

COUNTRY<br />

MALTA<br />

POLAND<br />

PORTUGAL<br />

ROMANIA<br />

SLOVAKIA<br />

SLOVENIA<br />

SPAIN<br />

SWEDEN<br />

SWITZERLAND<br />

THE<br />

NETHERLANDS<br />

UNITED<br />

KINGDOM


Session 2<br />

NRTs in subjects under<br />

the age of 18, in case<br />

of pregnancy or<br />

cardiovascular diseases<br />

31


References<br />

(1) Bergstrom HC,<br />

McDonald CG, French<br />

HT, Smith RF.<br />

Continuous nicotine<br />

administration pro<strong>du</strong>ces<br />

selective, agedependent<br />

structural<br />

alteration of pyramidal<br />

neurons from prelimbic<br />

cortex. Synapse 2008;<br />

62(1): 31-39.<br />

(2) Debry SC, Tiffany ST.<br />

Tobacco-in<strong>du</strong>ced neurotoxicity<br />

of adolescent<br />

cognitive development<br />

(TINACD): A proposed<br />

model for the development<br />

of impulsivity in<br />

nicotine dependence.<br />

<strong>Nicotine</strong> Tob Res 2008;<br />

10(1): 11-25.<br />

(3) Wessels C, Winterer<br />

G. [Effects of nicotine<br />

on neurodevelopment.].<br />

Nervenarzt<br />

2008; 79(1): 7-16.<br />

(4) Johnson JG, Cohen<br />

P, Pine DS, Klein DF,<br />

Kasen S, Brook JS.<br />

Association between<br />

cigarette smoking and<br />

anxiety disorders<br />

<strong>du</strong>ring adolescence and<br />

early a<strong>du</strong>lthood. JAMA<br />

2000; 284(18): 2348-<br />

2351.<br />

(5) DiFranza JR, Rigotti<br />

NA, McNeill AD et al.<br />

Initial symptoms of<br />

nicotine dependence in<br />

adolescents. TobControl<br />

2000; 9(3): 313-319.<br />

(6) Kandel DB, Hu MC,<br />

Griesler PC, Schaffran<br />

C. On the development<br />

of nicotine dependence<br />

in adolescence. Drug<br />

Alcohol Depend 2007;<br />

91(1): 26-39.<br />

(7) Breslau N, Peterson<br />

EL. Smoking cessation<br />

in young a<strong>du</strong>lts: age at<br />

initiation of cigarette<br />

smoking and other suspected<br />

influences. Am J<br />

Public Health 1996;<br />

86(2): 214-220.<br />

Most smokers start smoking <strong>du</strong>ring<br />

adolescence, at an age when the maturation of<br />

the central nervous system is incomplete and<br />

when cholinergic mechanisms play a major role<br />

in the regulation of its development.<br />

<strong>Nicotine</strong> and developing<br />

brain<br />

Use of NRTs among<br />

adolescents<br />

Jean-Pierre Zellweger<br />

Pneumologist<br />

Fribourg, Switzerland<br />

Disturbance of the maturation processes can<br />

lead to permanent impairment of the neuronal<br />

architecture (1) or suboptimal function of some<br />

parts of the system. Given its neurotropic effect<br />

and the high density of nicotinic receptors in<br />

the central nervous system, nicotine has a<br />

major impact on cerebral development in<br />

adolescents (2). It has thus been demonstrated<br />

that nicotine interacts with the normal<br />

maturation processes of the cholinergic system<br />

and that smoking in adolescents can in<strong>du</strong>ce<br />

impairment of the mechanisms of impulsivity<br />

control, similar to the impairments that<br />

characterize attention deficit hyperactivity<br />

disorder (ADHD) (3). Some adolescent smokers<br />

also develop an anxiety disorder (4).<br />

See figures 1 and 2.<br />

Tobacco dependence can develop rapidly in<br />

some adolescents, occasionally after only a few<br />

weeks of use (5), and this is probably under the<br />

influence of genetic and environmental factors<br />

(6).<br />

INTERACTIONS BETWEEN NICOTINE AND THE DEVELOPING BRAIN<br />

Figure 1. The effect of nicotine on neuronal development<br />

deBry SC, Nic Tob Res 2008; 10(1): 11-25.<br />

32


Figure 2. Flowchart depicting the assumptions connecting research findings - deBry SC, Nic Tob Res<br />

2008; 10(1): 11-25.<br />

DEVELOPMENT OF NICOTINE DEPENDENCE<br />

(PROSPECTIVE STUDY AMONG 535 SMOKING ADOLESCENTS)<br />

Figure 3. Cumulative Distribution Function of the Onset of Each DSM-IV Criterion of <strong>Nicotine</strong><br />

Dependence After First Tobacco Use<br />

Kandel DB, Drug and Alcohol Dependence 2007; 91: 26-39.<br />

33 Use of NRTs among adolescents - Jean-Pierre Zellweger<br />

(8) Smith TA, House RF,<br />

Jr., Croghan IT et al.<br />

<strong>Nicotine</strong> patch <strong>therapy</strong><br />

in adolescent<br />

smokers.Pediatrics<br />

1996; 98(4 Pt 1): 659-<br />

667.<br />

(9) Hurt RD, et al<br />

<strong>Nicotine</strong> patch <strong>therapy</strong><br />

in 101 adolescent smokers:<br />

efficacy, withdrawal<br />

symptom relief,<br />

and carbon monoxide<br />

and plasma cotinine<br />

levels. Arch Pediatr<br />

Adolesc Med 2000;<br />

154(1): 31-37.<br />

(10) Hanson K, Allen S,<br />

Jensen S, Hatsukami D.<br />

Treatment of adolescent<br />

smokers with the<br />

nicotine patch. <strong>Nicotine</strong><br />

Tob Res 2003; 5(4): 515-<br />

526.<br />

(11) Moolchan ET,<br />

Robinson ML, Ernst M<br />

et al. Safety and efficacy<br />

of the nicotine<br />

patch and gum for the<br />

treatment of adolescent<br />

tobacco addiction.<br />

Pediatrics 2005; 115(4):<br />

e407-e414.<br />

(12) Roddy E, Romilly N,<br />

Challenger A, Lewis S,<br />

Britton J. Use of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong><br />

in socioeconomically<br />

deprived young<br />

smokers: a communitybased<br />

pilot randomised<br />

controlled trial. Tob<br />

Control 2006; 15(5):<br />

373-376.<br />

(13) Tsuji M, Kanetaka<br />

K, Harada H et al.<br />

[Factors associated with<br />

successful smoking cessation<br />

among adolescent<br />

smokers undergoing<br />

a smoking cessation<br />

program involving<br />

nicotine <strong>replacement</strong><br />

<strong>therapy</strong>]. Nippon Koshu<br />

Eisei Zasshi 2007; 54(5):<br />

304-313.


(14) Price JH, Jordan TR,<br />

Dake JA. Pediatricians'<br />

use of the 5 A's and<br />

nicotine <strong>replacement</strong><br />

<strong>therapy</strong> with adolescent<br />

smokers.<br />

Community Health<br />

2007; 32(2): 85-101.<br />

(15) Klesges LM,<br />

Johnson KC, et al. Use<br />

of nicotine <strong>replacement</strong><br />

<strong>therapy</strong> in adolescent<br />

smokers and nonsmokers.<br />

Arch Pediatr<br />

Adolesc Med 2003;<br />

157(6): 517-522.<br />

(16) Johnson KC,<br />

Klesges LM, Somes GW,<br />

Coday MC, DeBon M.<br />

Access of over-thecounter<br />

nicotine <strong>replacement</strong><br />

<strong>therapy</strong> pro<strong>du</strong>cts<br />

to minors. Arch<br />

Pediatr Adolesc Med<br />

2004; 158(3): 212-216.<br />

(17) Prokhorov AV,<br />

Winickoff JP, Ahluwalia<br />

JS et al. Youth tobacco<br />

use: a global perspective<br />

for child health<br />

care clinicians.<br />

Pediatrics 2006; 118(3):<br />

e890-e903.<br />

(18) DiFranza JR,<br />

Savageau JA, Fletcher K<br />

et al. Symptoms of<br />

tobacco dependence<br />

after brief intermittent<br />

use: the Development<br />

and Assessment of<br />

<strong>Nicotine</strong> Dependence in<br />

Youth-2 study. Arch<br />

Pediatr Adolesc Med<br />

2007; 161(7): 704-710.<br />

(19) Karp I, O'Loughlin<br />

J, Hanley J, Tyndale RF,<br />

Paradis G. Risk factors<br />

for tobacco dependence<br />

in adolescent<br />

smokers. Tob Control<br />

2006; 15(3): 199-204.<br />

(20) Bruvold WH. A<br />

meta-analysis of adolescent<br />

smoking prevention<br />

programs. Am J<br />

Public Health 1993;<br />

83(6): 872-880.<br />

Management<br />

of adolescent<br />

smokers<br />

The clinical management of adolescent<br />

smokers poses a basic problem: the toxic effect<br />

of the nicotine from cigarettes seems more<br />

marked than in a<strong>du</strong>lts, in whom maturation of<br />

the nervous system is complete. Furthermore,<br />

the younger subjects start smoking, the<br />

slimmer their chances of successfully quitting<br />

seem to be (7). Furthermore the use of<br />

nicotine <strong>replacement</strong> <strong>therapy</strong> to treat<br />

dependence involves using a substance that is<br />

potentially harmful in this age-group.<br />

Moreover, very few studies have been<br />

con<strong>du</strong>cted on the efficacy of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> and their results are<br />

rather contradictory.<br />

One of the first studies monitored a group<br />

of 22 adolescents aged between 13 and 17<br />

years for 6 months. They smoked 20 cig/d or<br />

more and were treated with nicotine patches.<br />

Nineteen completed the study but only 3<br />

(14%) were abstinent after 6 months. The<br />

adverse effects were minor (8).<br />

In an open-label study con<strong>du</strong>cted in the<br />

year 2000 in a group of 101 adolescents<br />

smoking 10 cigarettes/day or more, and<br />

treated with nicotine patches, Hurt observed a<br />

6-month abstinence rate of 5% (9).<br />

A randomized study (nicotine patch vs.<br />

placebo) con<strong>du</strong>cted in 100 adolescent smokers<br />

showed no difference between the two groups<br />

in the 10-week abstinence rate, but the mean<br />

<strong>du</strong>ration of abstinence was longer in the active<br />

group (18 days) than in the placebo group (4<br />

days). The adverse effects were minor and<br />

were identical in both groups (10).<br />

Another randomized study on a group of<br />

adolescent smokers treated with nicotine<br />

patches, nicotine gum or placebo for 12 weeks<br />

showed a clear advantage in the 3-month<br />

abstinence rate for the active group (18% for<br />

the patch, 6.5% for gum and 2.5% for<br />

placebo). Here again, the adverse effects were<br />

minor and identical in all the groups (11).<br />

In a group of 98 adolescent smokers living<br />

in an deprived area of Nottingham (UK) and<br />

treated with nicotine patches or placebo, 7<br />

participants were abstinent after 4 weeks and<br />

none after 3 months (12).<br />

In contrast, a Japanese study showed that in<br />

a group of 39 adolescent smokers treated with<br />

nicotine patches, 36% were abstinent after 1<br />

month and 25% after 3 months (13).<br />

Pediatricians rarely prescribe nicotine<br />

<strong>replacement</strong> <strong>therapy</strong>. A recent study showed<br />

that only 59% of pediatricians encountering<br />

adolescent smokers ask about their intention<br />

to quit and only 10% regularly prescribe<br />

nicotine <strong>replacement</strong> <strong>therapy</strong> (14).<br />

In contrast, adolescents appear to use<br />

nicotine <strong>replacement</strong> <strong>therapy</strong> spontaneously,<br />

and this is not only true for smokers (5% to<br />

16% depending on their cigarette<br />

consumption) but also for non-smokers (1.8%)<br />

(15), which suggests that some adolescents use<br />

nicotine <strong>replacement</strong> pro<strong>du</strong>cts for their<br />

neurotropic properties.<br />

According to current regulations in the<br />

United States, adolescents are not permitted to<br />

procure nicotine <strong>replacement</strong> <strong>therapy</strong> over the<br />

counter. In practice, these pro<strong>du</strong>cts are easily<br />

accessible and over 80% of adolescents can<br />

obtain them without difficulty (16).<br />

J.A. Costa e Silva.<br />

34


Discussion<br />

Smoking is a serious problem in adolescents<br />

(17), and the earlier they start, the faster<br />

dependence is established, and greater is the<br />

problem (18), (19).<br />

Prevention programs are relatively<br />

ineffective (20), (21) and the transtheoretical<br />

model of change has not been shown to apply<br />

in this age-group (22), probably <strong>du</strong>e to the fact<br />

that nicotine dependence is multifactorial (23).<br />

In this context, the use of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> as an aid to smoking<br />

cessation seems a good idea and is well<br />

accepted by the majority of adolescents (24),<br />

but the results of the studies that have been<br />

published to date are not encouraging (25).<br />

It is noteworthy that all of the studies (apart<br />

from one (11)) used nicotine patches and no<br />

prospective or randomized studies have been<br />

con<strong>du</strong>cted with other forms of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong>.<br />

The neuronal toxicity of nicotine is a genuine<br />

concern (26), but in any case smoking tobacco<br />

is more toxic than using nicotine <strong>replacement</strong><br />

<strong>therapy</strong>.<br />

Writing of recommendations.<br />

35<br />

Moreover none of the studies have<br />

reported major adverse effects or any<br />

difference between the adverse effects<br />

associated with nicotine <strong>replacement</strong> <strong>therapy</strong><br />

and placebo.<br />

There is therefore no need to worry about<br />

using nicotine <strong>replacement</strong> pro<strong>du</strong>cts in this<br />

age-group but, given their low efficacy in<br />

smoking cessation, they probably ought to be<br />

restricted to cases of strong dependence and<br />

supervised closely (25). Prospective studies of<br />

the efficacy of other forms of nicotine<br />

<strong>replacement</strong> are urgently required (27).<br />

Conclusions:<br />

• <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> is well<br />

tolerated by adolescents.<br />

• <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> is not a<br />

very effective aid to smoking cessation.<br />

• The possible reasons are:<br />

- Inappropriate use (used for a too<br />

short time, at insufficient doses),<br />

- Inadequate delivery system (patches<br />

are too slow-acting),<br />

- Inadequate indications (in smokers<br />

with no intention of quitting),<br />

- Poor evaluation of the degree of<br />

nicotine dependence.<br />

• When the indications are satisfied and<br />

close supervision provided, nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> could be used as an aid to<br />

smoking cessation in adolescents.<br />

• Studies on the use of other forms of<br />

nicotine <strong>replacement</strong> <strong>therapy</strong> besides patches<br />

are needed. ■<br />

Use of NRTs among adolescents - Jean-Pierre Zellweger<br />

(21) Myers MG, et al.<br />

Measuring adolescent<br />

smoking cessation strategies:<br />

instrument<br />

development and initial<br />

validation. <strong>Nicotine</strong> Tob<br />

Res 2007; 9(11): 1131-<br />

1138.<br />

(22) Kleinjan M, et al.<br />

Associations between<br />

the transtheoretical<br />

processes of change,<br />

nicotine dependence<br />

and adolescent smokers'<br />

transition through<br />

the stages of change.<br />

Addiction 2008; 103(2):<br />

331-338.<br />

(23) Kleinjan M, et al.<br />

Factorial and convergent<br />

validity of nicotine<br />

dependence measures<br />

in adolescents:<br />

toward a multidimensional<br />

approach.<br />

<strong>Nicotine</strong> Tob Res 2007;<br />

9(11): 1109-1118.<br />

(24) Leatherdale ST,<br />

McDonald PW. Youth<br />

smokers' beliefs about<br />

different cessation<br />

approaches: are we<br />

providing cessation<br />

interventions they<br />

never intend to use?<br />

Cancer Causes Control<br />

2007; 18(7): 783-791.<br />

(25) Adelman WP.<br />

<strong>Nicotine</strong> <strong>replacement</strong><br />

<strong>therapy</strong> for teenagers:<br />

about time or a waste<br />

of time? Arch Pediatr<br />

Adolesc Med 2004;<br />

158(3): 205-206.<br />

(26) Ginzel KH, Maritz<br />

GS, Marks DF et al.<br />

Critical review: nicotine<br />

for the fetus, the infant<br />

and the adolescent? J<br />

Health Psychol 2007;<br />

12(2): 215-224.<br />

(27) Moolchan ET, Ernst<br />

M, Henningfield JE. A<br />

review of tobacco smoking<br />

in adolescents:<br />

treatment implications.<br />

J Am Acad Child<br />

Adolesc Psychiatry<br />

2000; 39(6): 682-693.


References<br />

(1) US Department of<br />

Health and Human<br />

Services. Women and<br />

smoking: a report of the<br />

Surgeon General. 2001.<br />

Rockille, USDHHS.<br />

(2) Rogers John M.<br />

Tobacco and Pregnancy:<br />

Overview of Exposures<br />

and Effectes. Birth<br />

Defects Research Part C<br />

2008; 84(1): 1-16.<br />

(3) Charlton A. Children<br />

and smoking: the family<br />

circle. British Medical<br />

Bulletin 1996; 52: 90-107.<br />

(4) Wilens TE, Dodson W,<br />

Wilens TE, Dodson W. A<br />

clinical perspective of<br />

attentiondeficit/hyperactivity<br />

disorder into a<strong>du</strong>lthood.<br />

Journal of Clinical<br />

Psychiatry 2004; 65(10):<br />

1301-1313.<br />

(5) Joyce A.Martin, et al.<br />

Births: Final Data for<br />

2004. 2006. US<br />

Department of Health<br />

and Human Services,<br />

Center for Disease<br />

Control and Prevention,<br />

National Centre for<br />

Health Statistics,<br />

National Vital Statistics<br />

System. National Vital<br />

Statistics Reports.<br />

(6) Cnattingius S. The<br />

epidemiology of<br />

smoking <strong>du</strong>ring<br />

pregnancy: smoking<br />

prevalence, maternal<br />

characteristics, and<br />

pregnancy outcomes.<br />

[Review] [154 refs].<br />

<strong>Nicotine</strong> & Tobacco<br />

Research 2004; 6 Suppl<br />

2: S125-S140.<br />

Maternal<br />

Smoking in<br />

Pregnancy<br />

Recommendations<br />

<strong>du</strong>ring pregnancy<br />

Tim Coleman<br />

Division of Primary Care, University of Nottingham.<br />

Medical School, Queen’s Medical Centre, Nottingham, UK.<br />

Maternal smoking <strong>du</strong>ring pregnancy is a<br />

well established risk factor for multiple health<br />

problems (1) and dose-response relationships<br />

have been demonstrated between this and<br />

the following health problems in infants:<br />

being small for gestational age, stillbirth, preterm<br />

birth, sudden infant death syndrome,<br />

obesity and Type II diabetes (2). Infants of<br />

mothers who smoke whilst pregnant are also<br />

at increased risk of developing asthma (3),<br />

childhood learning problems and attentiondeficit,<br />

hyperactivity disorder, causing<br />

persistent problems into a<strong>du</strong>lthood (4).<br />

Despite these well documented risks, 10.2% of<br />

US women smoked <strong>du</strong>ring pregnancy in 2004<br />

(5) as did 13% in Sweden in 2000 (6). In the<br />

UK, in 2005 17% of women smoked<br />

throughout their pregnancies (7) and around<br />

30% smoked for at least some of their<br />

gestational period (8). Maternal smoking in<br />

pregnancy, therefore, remains a major public<br />

health problem which warrants serious<br />

attention.<br />

Maternal<br />

attitudes to<br />

smoking in<br />

pregnancy<br />

Although smoking in pregnancy is far too<br />

prevalent, conception is a highly motivating<br />

time for many smokers. Large numbers of<br />

women attempt to stop smoking when they<br />

first become pregnant, with 25% smokers<br />

managing to stop for at least some of their<br />

gestation (8). Unfortunately, around two<br />

thirds of those who do manage to stop for<br />

any significant length of time will re-start<br />

smoking in the post-natal period. 8<br />

Compared with women who do stop<br />

smoking whilst pregnant, those who<br />

continue are younger, less e<strong>du</strong>cated, more<br />

likely to be single and in manual<br />

occupations. Women who smoke in<br />

pregnancy are much less positive about the<br />

benefits of stopping smoking and, for<br />

example, are far less likely to accept that<br />

smoking harms their babies (8).<br />

36<br />

From left to right,<br />

C. Laur,<br />

C. Jimenez-Ruiz,<br />

D. Thomas.


Effective<br />

treatments for<br />

Smoking<br />

Cessation in<br />

pregnancy<br />

A Cochrane review summarised evidence<br />

for the effectiveness of smoking cessation<br />

programmes delivered outside of routine<br />

ante-natal care finding that these re<strong>du</strong>ce<br />

rates of smoking late pregnancy by around<br />

6% (relative risk 0.94, 95% CI 0.93 - 0.95) (9).<br />

Ante natal smoking cessation programmes<br />

also re<strong>du</strong>ced the incidences of low birth<br />

weight and pre-term birth by approximately<br />

20% from baseline levels (9).<br />

Trials included in the review tested varied<br />

behavioural interventions which were<br />

underpinned by different psychological<br />

theories and it is not possible to say which of<br />

programmes’ indivi<strong>du</strong>al behavioural<br />

components were effective. Most trials<br />

employed cognitive/behavioural strategies<br />

to encourage cessation, but two which used<br />

social support and reward approaches<br />

caused bigger re<strong>du</strong>ctions in smoking rates<br />

(approximately 23%). In contrast,<br />

programmes based around the “stages of<br />

change” theory were not effective.<br />

The Cochrane review also pooled data<br />

from three trials which, at that time, had<br />

investigated the impact of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> (NRT) for smoking<br />

cessation in pregnancy and found no<br />

evidence that this was effective (pooled RR<br />

for cessation in later pregnancy 0.94: 95% CI<br />

0.89, 1.00). Given that smoking cessation<br />

programmes delivered alongside their<br />

routine ante-natal care are effective, these<br />

should be offered to all pregnant women<br />

and any. Pharmacological smoking cessation<br />

aids should only be provided in addition to<br />

these.<br />

37<br />

Using medicinal<br />

nicotine in<br />

pregnancy<br />

Although behavioural treatments for<br />

smoking cessation in pregnancy work,<br />

women who use these need to be motivated<br />

enough to set aside significant amounts to<br />

attend treatment and it is not likely that<br />

those smokers who are very negative about<br />

the benefits of stopping smoking will do so.<br />

Consequently, it is important to find other<br />

smoking cessation treatments which are safe<br />

and effective but which are also more likely<br />

to be used by recalcitrant smokers. One such<br />

potential treatment which has been<br />

recommended for use in pregnancy is<br />

nicotine <strong>replacement</strong> <strong>therapy</strong> (NRT) (10).<br />

Over 100 trials of NRT in non-pregnant<br />

subjects have consistently demonstrated<br />

that, irrespective of NRT formulation used,<br />

this is more effective than placebo for<br />

smoking cessation and increases the chances<br />

of a smoker achieving abstinence in any one<br />

quit attempt by around 80% (RR 1.77 [95%<br />

CI 1.66, 1.88]) (11). Additionally, the impact<br />

of NRT appears to be independent of the<br />

amount or intensity of support provided, the<br />

treatment <strong>du</strong>ration or the setting in which<br />

this is offered. If effective, therefore, NRT<br />

could be an acceptable alternative treatment<br />

for pregnant women who cannot or will not<br />

attend for support with smoking cessation.<br />

Although there is very little evidence for<br />

either the effectiveness or safety of NRT<br />

when used for smoking cessation in<br />

pregnancy, many smoking cessation experts<br />

believe that use of NRT in pregnancy is<br />

preferable to smoking (12). They argue that,<br />

although toxic, nicotine is a substance which<br />

pregnant women would receive anyway if<br />

they continued to smoke and that when it is<br />

delivered by NRTs nicotine is not<br />

accompanied by the numerous over known<br />

tobacco smoke toxins. Additionally, it has<br />

also been argued that because, outside of<br />

Recommendations <strong>du</strong>ring pregnancy - Tim Coleman<br />

(7) Bolling K. Infant<br />

Feeding Survey 2005:<br />

Early Results. 2006.<br />

http://www.ic.nhs.uk/pu<br />

bs/breastfeed2005, The<br />

National Health Service<br />

Information Centre for<br />

Health and Social Care.<br />

(8) Owen L, Penn G.<br />

Smoking and pregnancy:<br />

A survey of knowledge<br />

attitudes and behaviour,<br />

1992-1999. 1999.<br />

London, Health<br />

Development Agency.<br />

Ref Type: Report<br />

(9) Lumley J, Oliver SS,<br />

Chamberlain C, Oakley<br />

L. Interventions for<br />

promoting smoking<br />

cessation <strong>du</strong>ring<br />

pregnancy.[update of<br />

Cochrane Database Syst<br />

Rev. 2000; (2): CD001055;<br />

PMID:<br />

10796228].Cochrane<br />

Database of Systematic<br />

Reviews 2004; (4):<br />

CD001055.<br />

(10) Benowitz NL,<br />

Dempsey DA,<br />

Goldenberg RL, Hughes<br />

JR, Dolan-Mullen P,<br />

Ogburn PL et al. The use<br />

of pharmacotherapies<br />

for smoking cessation<br />

<strong>du</strong>ring pregnancy. Tob<br />

Control 2000; 9 Suppl 3:<br />

III91-III94.<br />

(11) Silagy C, Lancaster<br />

T, Stead L, Mant D,<br />

Fowler G. <strong>Nicotine</strong><br />

<strong>replacement</strong> <strong>therapy</strong> for<br />

smoking cessation.[see<br />

comment][update of<br />

Cochrane Database Syst<br />

Rev. 2002;(4):CD000146;<br />

PMID: 12519537].<br />

Cochrane Database of<br />

Systematic Reviews<br />

2004; (3): CD000146.


(12) Benowitz NL,<br />

Dempsey DA,<br />

Goldenberg RL, Hughes<br />

JR, Dolan-Mullen P,<br />

Ogburn PL et al. The use<br />

of pharmacotherapies<br />

for smoking cessation<br />

<strong>du</strong>ring pregnancy. Tob<br />

Control 2000; 9 Suppl 3:<br />

III91-III94.<br />

(13) Oncken CA, et al.<br />

Effects of transdermal<br />

nicotine or smoking on<br />

nicotine concentrations<br />

and maternal-fetal<br />

hemodynamics. Obstet<br />

Gynecol 1997; 90(4 Pt 1):<br />

569-574.<br />

(14) Benowitz NL,<br />

Dempsey DA.<br />

Pharmaco<strong>therapy</strong> for<br />

smoking cessation<br />

<strong>du</strong>ring pregnancy.<br />

<strong>Nicotine</strong> and Tobacco<br />

Research (Supp) 2004; 6:<br />

S189-S202.<br />

(15) Dempsey DA,<br />

Benowitz NL. Risks and<br />

benefits of nicotine to<br />

aid smoking cessation in<br />

pregnancy. Drug Safety<br />

2001; 24(4): 277-322.<br />

(16) Batstra L, Hadders-<br />

Algra M, Neeleman J.<br />

Effect of antenatal<br />

exposure to maternal<br />

smoking on behavioural<br />

problems and academic<br />

achievement in<br />

childhood: prospective<br />

evidence from a Dutch<br />

birth cohort. Early<br />

Human Development<br />

2003; 75(1-2): 21-33.<br />

pregnancy, nicotine <strong>replacement</strong> therapies<br />

deliver lower doses of nicotine than<br />

cigarettes, this is also likely to be the case for<br />

pregnant women. It should be noted that<br />

enthusiasm for the use of nicotine in<br />

pregnancy are base on theoretical rather<br />

than empirical data.<br />

<strong>Nicotine</strong> in<br />

pregnancy:<br />

safety concerns<br />

<strong>Nicotine</strong> is a known toxin and should<br />

never be advocated for pregnant women<br />

who have never smoked and who would not<br />

otherwise be exposed to it. Only nicotineaddicted<br />

smokers should consider using NRT<br />

for smoking cessation in pregnancy and<br />

occasional or light smokers should probably<br />

not use it.<br />

There is no conclusive research which can<br />

help clinicians to decide the level of smoking<br />

in pregnancy above which women would<br />

definitely receive less (or at least no more)<br />

nicotine from NRT than from smoking. The<br />

few, small studies (e.g. Oncken et al (13) )<br />

which have compared nicotine or cotinine<br />

levels generated when pregnant women use<br />

NRT or smoke have not been large enough<br />

to provide definitive data.<br />

Further comparisons of nicotine levels<br />

generated by NRT and smoking <strong>du</strong>ring<br />

pregnancy are required, but in the interim, it<br />

is probably reasonable to only consider using<br />

NRT for pregnant women who smoked 10 or<br />

more cigarettes daily before conceiving.<br />

The impacts of nicotine on the<br />

developing foetus have been reviewed in<br />

detail elsewhere (14), (15) and will only be<br />

summarised here, but the vast majority of<br />

evidence comes form animal studies and<br />

there is little empirical research in humans.<br />

Safety:nicotine vasoconstriction<br />

■ Smoking & nicotine have fetal CVS effects<br />

- Observed after NRT or smoking<br />

- higher dose of nicotine = greater impact<br />

■ Placental blood flow?<br />

- Re<strong>du</strong>ced by smoking, no NRT studies<br />

- Effect on fetal growth?<br />

The working group. Hedwig Boudrez’<br />

presentation.<br />

Animal work has shown that nicotine is a<br />

vasoconstrictor and human work has<br />

confirmed that its administration affects the<br />

cardiovascular systems of pregnant women<br />

and foetuses (14-15). <strong>Nicotine</strong> gum and<br />

patches both cause dose-related increases in<br />

human maternal blood pressure and heart<br />

38


ate and lesser, concomitant effects on foetal<br />

heart rate but larger effects are caused by<br />

smoking cigarettes (14), (15). It has been<br />

suggested that nicotine-in<strong>du</strong>ced vasoconstriction<br />

might affect placental blood<br />

flow and could be responsible for smokingrelated<br />

re<strong>du</strong>ced foetal growth in utero.<br />

<strong>Nicotine</strong> is also a neurotoxin and long term<br />

nicotine exposure to pregnant rats is<br />

associated with adverse changes in infant<br />

rats’ behavioural and cognitive responses<br />

(14), (15).<br />

Safety:neurotoxicity<br />

■ Smoking in pregnancy =<br />

infants’ behavioural problems (ADHD)<br />

- Hypothesis, observational<br />

■ Experimental animal studies<br />

- High dose maternal nicotine infusion =<br />

infant rat behavioural problems<br />

■ No experimental human studies<br />

It has been hypothesised, therefore, that<br />

nicotine may be the constituent of smoking<br />

which causes the behavioural and cognitive<br />

problems observed in infants born to<br />

maternal smokers (4-16). However, some<br />

experts believe that the doses of nicotine<br />

used in these rodent studies were much<br />

higher than was necessary to compare with<br />

the nicotine doses generated by humans use<br />

of NRT and consequently, these studies are<br />

of little relevance to use of NRT in pregnancy<br />

(17). There are currently no experimental<br />

studies investigating the impact of maternal<br />

nicotine exposure in pregnancy or in<br />

subsequent infant cognition behaviour,<br />

however.<br />

Human studies<br />

Currently, there are only 4 humans studies<br />

providing data on the safety of nicotine in<br />

pregnancy. A Danish placebo RCT<br />

randomised 250 women to nicotine or<br />

placebo patches and found that infants born<br />

to women in the group who received<br />

nicotine were heavier than those in the<br />

placebo group (18). The mean difference in<br />

birth weight was small (186g [95% CI 35 to<br />

336g]) and, hence, is not of clinical<br />

significance, but is of theoretical interest<br />

because it does not support the hypothesis<br />

that nicotine is the substance in tobacco<br />

smoke responsible for of foetal growth<br />

restriction. Another RCT randomised 181<br />

women to cognitive behavioural <strong>therapy</strong><br />

alone or with added NRT, but this trial was<br />

stopped early <strong>du</strong>e to a non-significant<br />

doubling of adverse events in the NRT arm<br />

(19). Adverse events included some<br />

premature births at 35-37 weeks gestation<br />

which are of minimal clinical significance.<br />

The final analysis of trial data suggested that<br />

the higher rate of early birth in the nicotine<br />

arm occurred because, by chance, the rate of<br />

previous pre-term birth was higher in<br />

P.V. Pataka.<br />

39 Recommendations <strong>du</strong>ring pregnancy - Tim Coleman<br />

(17) Hussein J, Farkas S,<br />

MacKinnon Y, Ariano RE,<br />

Sitar DS, Hasan SU.<br />

<strong>Nicotine</strong> doseconcentration<br />

relationship and<br />

pregnancy outcomes in<br />

rat: Biologic plausibility<br />

and implications for<br />

future research.<br />

Toxicology & Applied<br />

Pharmacology 2007;<br />

218(1): 01.<br />

(18) Wisborg K,<br />

Henriksen TB, Jespersen<br />

LB, Secher NJ. <strong>Nicotine</strong><br />

patches for pregnant<br />

smokers: a randomized<br />

controlled study.<br />

Obstetrics & Gynecology<br />

2000; 96(6): 967-971.<br />

(19) Pollak KI, Oncken<br />

CA, Lipkus IM, Lyna P,<br />

Swamy GK, Pletsch PK et<br />

al. <strong>Nicotine</strong> <strong>replacement</strong><br />

and behavioral <strong>therapy</strong><br />

for smoking cessation in<br />

pregnancy. American<br />

Journal of Preventive<br />

Medicine 2007; 33(4):<br />

297-305.<br />

(20) Morales-Suarez-<br />

Varela MM, Bille C,<br />

Christensen K, Olsen J.<br />

Smoking habits, nicotine<br />

use, and congenital<br />

malformations.<br />

Obstetrics & Gynecology<br />

2006; 107(1): 51-57.<br />

(21) Tata LJ, Hubbard RB,<br />

Lewis SA, Smith CJP,<br />

Coleman TJ. Maternal<br />

smoking, use of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> in<br />

pregnancy and<br />

congenital<br />

malformations in<br />

offspring: A case-control<br />

study nested within a<br />

pregnancy cohort.<br />

Unpublished work,<br />

submitted for<br />

publication.<br />

(22) Dempsey D, Jacob P,<br />

III, Benowitz NL.<br />

Accelerated metabolism<br />

of nicotine and cotinine<br />

in pregnant smokers.<br />

Journal of Pharmacology<br />

& Experimental<br />

Therapeutics 2002;<br />

301(2): 594-598.


(23) Kapur B, Hackman<br />

R, Selby P, Klein J, Koren<br />

G. Randomized, doubleblind,<br />

placebo-controlled<br />

trial of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> in<br />

pregnancy. Current<br />

Therapeutic Research,<br />

Clinical & Experimental<br />

2001; 62(4): 274-278.<br />

(24) Hegaard HK,<br />

Kjaergaard H, Moller LF,<br />

Wachmann H, Ottesen B.<br />

Multimodal intervention<br />

raises smoking cessation<br />

rate <strong>du</strong>ring pregnancy.<br />

Acta Obstetricia et<br />

Gynecologica<br />

Scandinavica 2003; 82(9):<br />

813-819.<br />

(25) Pollak K, Oncken<br />

CA, Lipkus I, Lyna P,<br />

Swamy G, Pletsch P et al.<br />

Effectiveness of Adding<br />

<strong>Nicotine</strong> Replacement to<br />

Cognitive Behavioral<br />

Therapy for Smoking<br />

Cessation in Pregnant<br />

Smokers: The Baby<br />

Steps Trial. American<br />

Journal of Preventive<br />

Medicine. 2007; 33: 297-<br />

305.<br />

(26) Coleman T,<br />

Thornton J, Britton J,<br />

Lewis S, Watts K,<br />

Coughtrie MW et al.<br />

Protocol for the<br />

smoking, nicotine and<br />

pregnancy (SNAP) trial:<br />

double-blind, placeborandomised,<br />

controlled<br />

trial of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> in<br />

pregnancy. 1186. BMC<br />

Health Services Research<br />

2007; 7:2.<br />

women randomised to group. The nonblinded<br />

trial design could also have resulted<br />

in biased reporting of adverse events<br />

amongst the NRT group and although birth<br />

weight was monitored, no significant<br />

differences between trial arms were noted.<br />

Two observational epidemiological studies<br />

have investigated the relationship between<br />

NRT use in pregnancy and congenital<br />

abnormalities. One analysed data from<br />

almost 77,000 pregnancies within a Danish<br />

birth cohort, finding an association between<br />

reported nicotine use in the first trimester of<br />

pregnancy and subsequent foetal<br />

malformation (OR 1.61; 95% CI 1.01 – 2.58)<br />

(20). A second case control study, however,<br />

analysed data from almost 51,000 live births<br />

and compared pregnant women who had<br />

received prescriptions for NRT with those<br />

who did not but found no association<br />

between receiving NRT on prescription and<br />

foetal abnormality (OR 1.56; 95% CI 0.85 –<br />

2.86) (21). In both studies findings could have<br />

arisen because of unmeasured (and<br />

therefore non-adjusted for) factors causing<br />

confounding and further evidence is<br />

required.<br />

In summary, there is no compelling<br />

evidence that medicinal nicotine use in<br />

pregnancy is safer or more harmful than<br />

smoking and more research is required. The<br />

current expert consensus that using NRT is<br />

probably safer in pregnancy than smoking is<br />

predominantly based on theoretical<br />

considerations (10).<br />

<strong>Nicotine</strong> in pregnancy:<br />

effectiveness for smoking<br />

cessation<br />

Although NRT is of unquestionable<br />

effectiveness when used outside of<br />

pregnancy, pregnant women metabolise<br />

nicotine and cotinine 60% and 140% faster<br />

respectively than non-pregnant smokers<br />

(22).<br />

This means that standard does of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> may not generate<br />

sufficient plasma levels of nicotine in<br />

pregnant women to effectively substitute for<br />

the nicotine that they would have received<br />

by smoking: higher doses may be need in<br />

pregnancy for NRT to be effective.<br />

This could explain why the three trials<br />

meta analysed in the Cochrane review of<br />

smoking cessation interventions in<br />

pregnancy provide no evidence for the<br />

effectiveness of NRT when used for smoking<br />

cessation in pregnancy (9-18-23-24). The<br />

open-label RCT which was stopped <strong>du</strong>e to<br />

increased adverse events, and which is not<br />

included in the review analysis, did, however,<br />

pro<strong>du</strong>ce positive findings (25). This trial had<br />

two primary outcomes: seven day point<br />

prevalence smoking cessation at both 7 and<br />

38 weeks of pregnancy. At 7 weeks, 7 day<br />

point prevalence cessation was significantly<br />

higher in the NRT arm (24% vs. 8%) and at<br />

38 weeks, cessation in the NRT group was<br />

still greater (18% vs. 7%), but no longer<br />

statistically significant at ‘p’ value selected at<br />

the outset of the study (p=0.025 – to allow<br />

for two primary outcomes).<br />

There are currently three ongoing studies<br />

which should pro<strong>du</strong>ce further information of<br />

the safety and effectiveness of NRT in<br />

pregnancy. These include two placebo RCTs;<br />

one is based in Nottingham, England (26) has<br />

currently recruited 50% of its target and the<br />

second based in Paris, France and has<br />

recently started recruiting. A third openlabel<br />

RCT is based in the US and results are<br />

<strong>du</strong>e soon.<br />

Consequently, in the next 5 years there<br />

may be sufficient evidence to make more<br />

definitive statements about the effectiveness<br />

of NRT for smoking cessation in pregnancy,<br />

but currently there is no evidence other than<br />

theoretical, to suppose that it works.<br />

40


Recommendations<br />

for clinical<br />

practice<br />

The evidence base for using of NRT in<br />

pregnancy has not changed substantially<br />

over the past decade and recommendations<br />

made here are very similar to those in<br />

current US and UK guidance.<br />

1- All women who smoke should attempt<br />

to stop smoking prior to conception.<br />

Physicians should provide women with<br />

evidence-based support in their preconception<br />

attempt at achieving cessation.<br />

2- If women fail to stop smoking before<br />

becoming pregnant, they should be<br />

encouraged to stop smoking as early as<br />

possible in pregnancy, using only<br />

behavioural support provided in addition to<br />

(i.e. outside of) routine ante-natal and<br />

medical care.<br />

3- If a pregnant women cannot achieve<br />

smoking cessation <strong>du</strong>ring pregnancy using<br />

behavioural support only, clinicians should<br />

discuss the risks and benefits of using NRT in<br />

pregnancy. Caution needs to be exercised<br />

with women who are light smokers and NRT<br />

should not be suggested as an option for<br />

women who smoke only occasionally.<br />

4- Discussion of NRT must allow women<br />

to make an informed decision about<br />

whether or not to use this. Points which<br />

should be covered are:<br />

• the belief that NRT is safer than<br />

smoking in pregnancy is based on theory<br />

rather than hard evidence,<br />

• although NRT helps non-pregnant<br />

people to stop smoking, it has not been<br />

shown to definitely help pregnant women<br />

with smoking cessation,<br />

• NRT contains one toxin that women<br />

who smoke regularly and heavily (probably ><br />

10 cigs per day before pregnancy) would<br />

probably receive more of by their continued<br />

smoking. However, the cigarette smoke that<br />

they inhale would contain 3000 or more<br />

other toxins too. ■<br />

The working group - Welcome by J. Chevallet.<br />

41 Recommendations <strong>du</strong>ring pregnancy - Tim Coleman


References<br />

(1) Stead LF, Perera R,<br />

Bullen C, Mant D,<br />

Lancaster T. <strong>Nicotine</strong><br />

<strong>replacement</strong> <strong>therapy</strong> for<br />

smoking cessation.<br />

Cochrane Database of<br />

Systematic Reviews 2007,<br />

Issue 4. Art. No.:<br />

CD000146. DOI:<br />

10.1002/14651858.CD0001<br />

46.pub3.<br />

(2) Hwang SL, Waldhot M.<br />

Heart attacks reported in<br />

patch users still smoking.<br />

Wall Street Journal NY<br />

1992: 14 July: B1.<br />

(3) Ambrose JA, Barua RS.<br />

The pathophy-siology of<br />

cigarette smoking and<br />

cardiovascular disease J<br />

Am Coll Cardiol 2004; 43:<br />

1731-7.<br />

(4) Raupach T, Schäfer K,<br />

Konstantinides S, Andreas<br />

S. Second hand smoking<br />

as a threat for the<br />

cardiovascular sytem: a<br />

change in a paradigm. Eur<br />

Heart J 2006; 27: 386-92.<br />

(5) Ford CL, Zlabek JA.<br />

<strong>Nicotine</strong> <strong>replacement</strong><br />

<strong>therapy</strong> and<br />

cardiovascular disease.<br />

Mayo Clin Proc 2005; 80:<br />

652-6.<br />

(6) Mundal HH, Hjemdahl<br />

P, Gjesdal K. Acute effects<br />

of low dose nicotine gum<br />

on platelet function in<br />

non-smoking<br />

hypertensive and<br />

normotensive men. Eur J<br />

Clin Pharmacol. 1995; 47:<br />

411-6.<br />

(7) Blann AD, Steele C,<br />

McCollum CN. The<br />

influence of smoking and<br />

of oral and transdermal<br />

nicotine on blood<br />

pressure, and<br />

haematology and<br />

coagulation indices.<br />

Thromb Haemost. 1997;<br />

78:1093-6.<br />

(8) Benowitz NL,<br />

Fitzgerald GA, Wilson M<br />

et al. <strong>Nicotine</strong> effects on<br />

eicosanoid formation and<br />

hemostatic function:<br />

comparison of<br />

transdermal nicotine and<br />

cigarette smoking. J Am<br />

Coll Cardiol 1993; 22:<br />

1159-67.<br />

(9) Benowitz NL. Cigarette<br />

smoking and<br />

cardiovascular disease:<br />

Pathophysiology and<br />

implications for<br />

treatment. Progr<br />

Cardiovasc Dis 2003; 46:<br />

91-111.<br />

Cardiovascular<br />

safety of NRTs<br />

Daniel Thomas<br />

Institut de Cardiologie, Groupe Hospitalier Pitié-Salpétrière<br />

Paris - France.<br />

<strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> (NRT) is<br />

an essential tool and its efficacy in<br />

smoking cessation has been fully<br />

demonstrated (1).<br />

NRT has been considered dangerous<br />

from the cardiovascular perspective<br />

following the publication of<br />

cardiovascular events that occurred in<br />

treated subjects (2) and for a long time it<br />

was contraindicated or used with caution<br />

in patients with Coronary Heart Disease,<br />

(CHD).<br />

Nowadays however it is accessible to<br />

everyone because it can be sold over the<br />

counter (OTC).<br />

It is therefore legitimate to make sure it<br />

is safe!<br />

Insofar as NRT only delivers nicotine,<br />

the issues are:<br />

- Can nicotine have cardiovascular<br />

toxicity?<br />

- What are the experimental data<br />

obtained in patients with coronary heart<br />

disease?<br />

- What is the clinical evidence for its<br />

safety, especially in patients with coronary<br />

heart disease?<br />

Can nicotine have<br />

cardiovascular toxicity?<br />

Considering the mechanism of acute<br />

coronary events and the pathophysiology<br />

of smoking in relation to the<br />

cardiovascular system (3-5), nicotine’s<br />

possible points of impact are: thrombosis,<br />

sympathetic stimulation and endothelial<br />

dysfunction.<br />

Prothrombotic effect?<br />

<strong>Nicotine</strong> has no specific impact on<br />

platelet function or the other stages of<br />

coagulation (6-8). <strong>Nicotine</strong> does not<br />

therefore seem to be responsible for the<br />

thrombotic risk of smoking, which appears<br />

to be <strong>du</strong>e to other tobacco combustion<br />

pro<strong>du</strong>cts (9).<br />

Effects on the sympathetic nervous<br />

system?<br />

<strong>Nicotine</strong> activates sympathetic<br />

neurotransmission (10). This sympathetic<br />

activation may increase the heart rate and<br />

blood pressure, thereby increasing<br />

myocardial oxygen consumption (9) which<br />

may contribute to the decompensation of<br />

coronary failure. In fact, these effects have<br />

been observed in smokers but not found<br />

in smokers treated with NRT, even at very<br />

high doses (11). This can be explained:<br />

- firstly by the pharmacokinetics of<br />

nicotine delivered by patch (12),<br />

- secondly by the development of<br />

nicotine tolerance in smokers. This may<br />

42


explain why it increases chemoreflex<br />

sensitivity to hypoxia in a population of<br />

non-smokers (13) while this is not the case<br />

in smokers (14). Similarly, NRT does not<br />

significantly modify the heart rate and<br />

blood pressure of hypertensive smokers<br />

whereas it increases the heart rate and<br />

blood pressure of non-smokers (15).<br />

Finally, by the possibility that these<br />

sympathetic effects are <strong>du</strong>e in part to<br />

other constituents of tobacco smoke<br />

(anabasine, beta-carbolines) (10).<br />

Endothelial dysfunction?<br />

Smoking is an essential cause of<br />

endothelial dysfunction, associated with<br />

the risk of arterial spasm, which may occur<br />

for example in the coronary arteries. The<br />

role of nicotine remains controversial (10).<br />

In smokers, endothelial reactivity is<br />

impaired in a comparable way following<br />

exposure to 1 mg of nicotine absorbed<br />

through smoking a cigarette and after<br />

exposure to an equivalent quantity of<br />

nicotine administered with a nasal spray<br />

(16), this route of administration being<br />

very similar to that of cigarette smoke.<br />

However, in non-smokers endothelial<br />

dysfunction is present on exposure to<br />

tobacco smoke but not with oral<br />

administration of nicotine (10).<br />

Finally, endothelial dysfunction could<br />

be related to other components of<br />

tobacco smoke (10).<br />

Table 1.<br />

Experimental data in<br />

patients with CHD?<br />

One study con<strong>du</strong>cted <strong>du</strong>ring coronary<br />

angiography analyzed the effects of<br />

nicotine gum on heart rate, blood<br />

pressure and coronary artery diameter<br />

<strong>du</strong>ring a cold pressor test in patients with<br />

coronary artery disease (17). NRT does not<br />

potentiate the vasoconstrictive effect of<br />

sympathetic stimulation in<strong>du</strong>ced by the<br />

cold pressor test, in terms of either<br />

haemodynamic changes or arterial<br />

diameter.<br />

One study on 36 smokers with<br />

myocardial ischemia carried out exercise<br />

thallium scintigraphy <strong>du</strong>ring treatment<br />

with 14-mg then 21-mg nicotine patches,<br />

once for each dose (18). Despite a<br />

significant increase in blood nicotine<br />

levels, associated with the fact that the<br />

patients had not stopped smoking<br />

completely, a significant decrease in<br />

myocardial ischemia was observed. None<br />

of the patients exhibited exacerbation of<br />

myocardial ischemia or coronary events<br />

<strong>du</strong>ring NRT. See table 1.<br />

43 Cardiovascular safety of NRTs - Daniel Thomas<br />

(10) Adamopoulos D, Van<br />

de Borne P, Argacha JF.<br />

New insights into the<br />

sympathetic, endothelial<br />

and coronary effects of<br />

nicotine. Clinical and<br />

Experimental<br />

Pharmacology and<br />

Physiology 2008; 35 :458-<br />

63.<br />

(11) Zevin S, Jacob P III,<br />

Benowitz NL. Doserelated<br />

cardiovascular and<br />

endocrine effects of<br />

transdermal nicotine. Clin<br />

Pharmacol Ther 1998; 64:<br />

87-95.<br />

(12) Balfour DK,<br />

Fagerstrom KO.<br />

Pharmacology of nicotine<br />

and its therapeutic use in<br />

smoking cessation and<br />

neurodegenerative<br />

disorders. Pharmacol Ther<br />

1996; 72: 51-81.<br />

(13) Argacha JF, Xhaet O,<br />

Marko G et al. <strong>Nicotine</strong><br />

increases chemoreflex<br />

sensitivity to hypoxia in<br />

non-smokers. Journal of<br />

Hypertension 2008; 26:<br />

284-94.<br />

(14) Najem B, Houssière<br />

A, Pathak A et al. Acute<br />

Cardiovascular and<br />

Sympathetic Effects of<br />

<strong>Nicotine</strong> Replacement<br />

Therapy. Hypertension<br />

2006; 47;1162-7.<br />

(15) Tanus-Santos JE,<br />

Toledo JC, Cittadino M,<br />

Sabha M, Rocha JC,<br />

Moreno H<br />

Jr..Cardiovascular effects<br />

of transdermal nicotine in<br />

mildly hypertensive<br />

smokers. Am J Hypertens.<br />

2001; 14: 610-4.<br />

(16) Neunteufl T, Heher S,<br />

Kostner K et al.<br />

Contribution of <strong>Nicotine</strong><br />

to Acute Endothelial<br />

Dysfunction in Long-Term<br />

Smokers. J Am Coll<br />

Cardiol 2002; 39: 251-6.<br />

(17) Nitenberg A, Antony<br />

I. Effects of nicotine gum<br />

on coronary vasomotor<br />

responses <strong>du</strong>ring<br />

sympathetic stimulation<br />

in patients with coronary<br />

artery stenosis.<br />

Cardiovasc Pharmacol<br />

1999: 34; 694-9.<br />

(18) Mahmarian JJ, Moye<br />

LA, Nasser GA et al.<br />

<strong>Nicotine</strong> patch <strong>therapy</strong> in<br />

smoking cessation<br />

re<strong>du</strong>ces the extent of<br />

exercice in<strong>du</strong>ced<br />

myocardial ischemia. J Am<br />

Coll Cardiol 1997; 30: 125-<br />

30.


(19) Greenland S,<br />

Satterfield MH, Lanes SF.<br />

A meta-analysis to assess<br />

the incidence of adverse<br />

effects associated with<br />

the transdermal nicotine<br />

patch. Drug Saf. 1998; 18:<br />

297-308.<br />

(20) Kimmel SE, Berlin JA,<br />

Miles C, Jaskowiak J,<br />

Carson JL, Strom BL. Risk<br />

of acute first myocardial<br />

infarction and use of<br />

nicotine patches in a<br />

general population. J Am<br />

Coll Cardiol. 2001; 37:<br />

1297-302.<br />

(21) Hubbard et al. Use of<br />

nicotine <strong>replacement</strong><br />

<strong>therapy</strong> and the risk of<br />

acute myocardial<br />

infarction, stroke, and<br />

death. Tob. Control 2005;<br />

14; 416-21.<br />

(22) Murray RP, Bailey WC,<br />

Daniels K et al. Safety of<br />

nicotine polacrilex gum<br />

used by 3094 participants<br />

in the Lung Health Study.<br />

Chest 1996; 109: 438-45.<br />

(23) Working Group for<br />

the Study of transdermal<br />

nicotine in patients with<br />

coronary artery disease.<br />

<strong>Nicotine</strong> <strong>replacement</strong><br />

<strong>therapy</strong> for patients with<br />

coronary artery disease.<br />

Arch Intern Med 1994;<br />

154: 989-95.<br />

(24) Joseph AM, Normann<br />

SM, Ferry LH et al. The<br />

safety of transdermal<br />

nicotine as an aid to<br />

smoking cessation in<br />

patients with cardiac<br />

disease. N Engl J Med<br />

1996; 335: 1792-8.<br />

(25) Tzivoni D, Keren A,<br />

Meyler S, Khoury Z, Lerer<br />

T, Brunel P. Cardiovascular<br />

safety of transdermal<br />

nicotine patchs in<br />

patients with coronary<br />

artery disease who try to<br />

quite smoking. Cardiovasc<br />

Drugs Ther 1998; 12: 239-<br />

44.<br />

(26) Meine TJ, Patel MR,<br />

Washam JB, et al. Safety<br />

and effectiveness of<br />

transdermal nicotine<br />

patch in smokers<br />

admitted with acute<br />

coronary syndromes. Am J<br />

Cardiol 2005; 95:976-78.<br />

Clinical evidence for<br />

safety,<br />

particularly in patients<br />

with CHD<br />

Clinical studies in the general<br />

population<br />

A meta-analysis of 34 controlled,<br />

randomized therapeutic trials of smoking<br />

cessation with NRT showed no excess of<br />

cardiovascular events in subjects receiving<br />

NRT (19).<br />

A case-control study comparing<br />

smokers hospitalized for myocardial<br />

infarction with smokers without<br />

myocardial infarction showed no<br />

correlation between the use of NRT and<br />

the risk of onset of myocardial infarction<br />

(20).<br />

An observational study of 33247<br />

subjects receiving NRT showed no increase<br />

in the risk of myocardial infarction, stroke<br />

or death <strong>du</strong>ring the weeks following<br />

institution of the treatment (21).<br />

An observational study with 5-year<br />

follow-up of 5887 smokers of average age<br />

with obstructive pulmonary disease<br />

showed that the patients treated with NRT<br />

showed no increase in the number of<br />

hospital admissions for cardiovascular<br />

events (22).<br />

All these studies therefore show the<br />

absence de cardiovascular risk associated<br />

with prescribing NRT for smokers not<br />

known to have coronary artery disease.<br />

Studies in patients with coronary<br />

heart disease<br />

A randomized study con<strong>du</strong>cted in 156<br />

patients with stable coronary heart<br />

disease and no acute coronary syndrome<br />

<strong>du</strong>ring the 3 previous months, analyzed<br />

the effect of transdermal administration<br />

of 14 mg and 21 mg of nicotine (23). There<br />

was no difference in symptom progression<br />

between the treated and placebo groups<br />

and Holter recordings showed no<br />

difference in repolarization abnormalities<br />

or arrhythmias.<br />

One randomized study comparing<br />

nicotine patch <strong>therapy</strong> to placebo in 584<br />

cardiac patients, most of whom had stable<br />

coronary heart disease, showed no<br />

significant difference in deaths, coronary<br />

events or hospital admissions for cardiac<br />

problems over a period of 14 weeks (24).<br />

One randomized double blind study<br />

evaluated the cardiovascular effects of<br />

nicotine patches compared to placebo in<br />

patients with coronary heart disease,<br />

using Holter recordings and exercise tests<br />

(25). No modification of heart rate or<br />

blood pressure was observed. The Holter<br />

recordings showed no significant<br />

difference in ischemic episodes or in the<br />

occurrence of arrhythmias between NRT<br />

and placebo. The exercise time and the<br />

time to onset of ischemic signs <strong>du</strong>ring the<br />

exercise test were improved to a similar<br />

extent in both groups.<br />

In summary, <strong>Nicotine</strong> Replacement<br />

Therapy causes no complications in<br />

patients with stable coronary heart<br />

disease.<br />

Studies in patients immediately<br />

after an acute coronary syndrome<br />

No randomized studies have been<br />

con<strong>du</strong>cted in this setting. The only<br />

available study is a case-control study<br />

comparing two groups of 187 smokers<br />

who had been hospitalized for acute<br />

coronary syndrome and were treated or<br />

untreated with transdermal NRT <strong>du</strong>ring<br />

their hospital stay (26). See table 2.<br />

The two groups exhibited no difference<br />

in mortality rates after 7 days, 30 days or 1<br />

year. The number of patients requiring<br />

coronary revascularization was identical.<br />

Despite the lack of scientific evidence<br />

that NRT is completely safe in this<br />

situation, the absolute risk of using NRT is<br />

undoubtedly much lower than the risk of<br />

continuing to smoke.<br />

44


Table 2.<br />

In practice<br />

Based on all these experimental and<br />

clinical findings, what approach should be<br />

adopted regarding the use of NRT in<br />

patients with coronary heart disease?<br />

In France, given the efficacy of NRT in<br />

smoking cessation and the fact that the<br />

experimental and clinical studies available<br />

at the time demonstrated its safety, the<br />

AFSSAPS (French Health Pro<strong>du</strong>cts Safety<br />

Agency) issued the following guidelines in<br />

May 2003 (27-28):<br />

- <strong>Nicotine</strong> <strong>replacement</strong> therapies are<br />

well tolerated by patients with coronary<br />

artery disease and do not exacerbate<br />

coronary heart disease or arrhythmias<br />

(level 2).<br />

- <strong>Nicotine</strong> <strong>replacement</strong> therapies are<br />

recommended in smokers with coronary<br />

artery disease (Grade B).<br />

- <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> can be<br />

prescribed as soon as the patient is<br />

discharged from the intensive care unit<br />

immediately after myocardial infarction<br />

(Grade C).<br />

- However, the prescribing physician<br />

must consider the loss of nicotine<br />

tolerance if the patient has not recently<br />

smoked (consensus agreement).<br />

Early prescription of NRT right from<br />

hospital admission is an important<br />

component of successful cessation after<br />

myocardial infarction. Indeed, studies<br />

show that half of patients who were<br />

smokers at the time of their infarct resume<br />

smoking within six months of the event,<br />

and usually relapse <strong>du</strong>ring the early weeks<br />

(29). Delaying the prescription of NRT<br />

therefore increases the risk of relapse.<br />

Furthermore, patients lose their nicotine<br />

tolerance and may not tolerate NRT so<br />

well.<br />

Prescribing NRT early after a coronary<br />

event therefore appears free of risk and<br />

guarantees better tolerance and better<br />

long-term results.<br />

To summarize<br />

• Media reports of rare clinical cases<br />

of cardiovascular events occurring in<br />

patients treated with nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> (NRT) worried the<br />

population for a long time and led doctors<br />

to be cautious and to avoid prescribing<br />

NRT for cardiovascular patients.<br />

• In fact, the experimental studies<br />

have shown that NRT has no effect on<br />

thrombosis, probably has none on<br />

endothelial function and its potential<br />

sympathomimetic effects are highly<br />

attenuated <strong>du</strong>e to the pharmacokinetics<br />

of NRT and the nicotine tolerance<br />

acquired by smokers.<br />

• Moreover, the clinical studies show<br />

no excess of cardiovascular events with<br />

NRT in either the general population of<br />

smokers or in patients with stable<br />

coronary artery disease.<br />

• Although we have no randomized<br />

studies on the use of NRT immediately<br />

after an acute coronary syndrome, the<br />

absolute risk of using NRT in this situation<br />

is most probably much lower than the risk<br />

of continuing to smoke.<br />

• Taken together, these data have led<br />

to the use of NRT in smokers with<br />

coronary artery disease being<br />

recommended, including immediately<br />

after an acute coronary event such as<br />

myocardial infarction. ■<br />

45 Cardiovascular safety of NRTs - Daniel Thomas<br />

(27) AFSSAPS (Agence<br />

Française de Sécurité<br />

Sanitaire des Pro<strong>du</strong>its de<br />

Santé). Les stratégies<br />

thérapeutiques<br />

médicamenteuses et non<br />

médicamenteuses de<br />

l’aide à l’arrêt <strong>du</strong> tabac.<br />

Recommandations de<br />

bonne pratique.<br />

Mai 2003<br />

(http://afssaps.sante.fr/ht<br />

m/10/tabac/sommaire.ht<br />

m)<br />

(28) B. Le Foll, Melihan-<br />

Cheinin P, Rostoker G,<br />

Lagrue G for the working<br />

group of AFSSAPS.<br />

Smoking cessation<br />

guidelines: evidencebased<br />

recommendations<br />

of the French Health<br />

Pro<strong>du</strong>cts Safety Agency<br />

European Psychiatry 2005;<br />

20: 431-41.<br />

(29) Kotseva K. Wood D,<br />

De Backer G et al.<br />

Cardiovascular prevention<br />

guidelines in daily<br />

practice: a comparison of<br />

EUROASPIRE I, II ans III<br />

surveys in eight European<br />

countries. Lancet 2009;<br />

373: 929-40<br />

29-kotseva 27-<br />

AFSSAPS (Agence<br />

Française de Sécurité<br />

Sanitaire des Pro<strong>du</strong>its de<br />

Santé). Les stratégies<br />

thérapeutiques<br />

médicamenteuses et non<br />

médicamenteuses de<br />

l’aide à l’arrêt <strong>du</strong> tabac.<br />

Recommandations de<br />

bonne pratique. Mai 2003<br />

(http://afssaps.sante.fr/ht<br />

m/10/tabac/sommaire.ht<br />

m) 28-B. Le Foll, Melihan-<br />

Cheinin P, Rostoker G,<br />

Lagrue G for the working<br />

group of AFSSAPS.<br />

Smoking cessation<br />

guidelines: evidencebased<br />

recommendations<br />

of the French Health<br />

Pro<strong>du</strong>cts Safety Agency<br />

European Psychiatry 2005;<br />

20:431-41.<br />

29-Scholte op Reimer W,<br />

de Swart E, De Bacquer D<br />

et al. Smoking behaviour<br />

in European patients with<br />

established coronary<br />

heart disease. Eur Heart J.<br />

2006; 27:35-41.


Session 3<br />

Re<strong>du</strong>ction in<br />

consumption<br />

47


Re<strong>du</strong>cing cigarettes<br />

consumption<br />

Jean Perriot<br />

Dispensaire Emile Roux - Clermont-Ferrand - France.<br />

Re<strong>du</strong>cing cigarettes consumption forms<br />

is part of the concept of harm re<strong>du</strong>ction in<br />

tobacco addiction. What benefit can be<br />

expected from applying this concept in<br />

combination with the use of <strong>Nicotine</strong><br />

Replacement Therapy?<br />

Positioning the<br />

problem<br />

The cigarette is the most common,<br />

toxic and addictive way to use tobacco.<br />

Most of the toxicity associated with<br />

smoking is not <strong>du</strong>e to nicotine (the main<br />

factor in tobacco addiction), but to other<br />

combustion pro<strong>du</strong>cts present in tobacco<br />

smoke (hydrocarbons, irritants, carbon<br />

monoxide) (1, 2).<br />

The disease in<strong>du</strong>ced by smoking is dosedependent<br />

to a great extent, although<br />

there is no threshold effect (3).<br />

Other nicotine administration devices<br />

("Potential Re<strong>du</strong>ced–Exposure Pro<strong>du</strong>cts")<br />

can be used for this purpose alongside<br />

<strong>Nicotine</strong> Replacement Therapy (NRT).<br />

The most attractive pro<strong>du</strong>ct appears to<br />

be "snus"-type oral tobacco, which has<br />

enabled a re<strong>du</strong>ction in tobacco<br />

consumption in Sweden associated with a<br />

low incidence of lung cancer. This pro<strong>du</strong>ct<br />

is not free of risk of disease and<br />

dependence. Recommending its use poses<br />

legal and ethical problems that require<br />

further studies (4).<br />

50% of smokers die prematurely from<br />

the consequences of smoking, although<br />

not all of them want or are able to quit<br />

smoking immediately.<br />

The concept of smoking re<strong>du</strong>ction may<br />

combine a population protection, public<br />

health approach (re<strong>du</strong>cing general toxicity<br />

<strong>du</strong>e to smoking) and an indivi<strong>du</strong>al<br />

approach involving support from<br />

addictions specialists (to prepare for<br />

complete smoking cessation) (5, 6).<br />

Validity of the<br />

concept<br />

Quitting smoking is a difficult<br />

challenge and is marked by many failures.<br />

Although 73.6% of smokers express the<br />

desire to quit smoking, only 22.3% try and<br />

4.1% succeed alone (7). 80% of the best<br />

supported quit attempts fail (8) and the<br />

same proportion of smokers is not ready<br />

to quit in the next 30 days (9).<br />

Smoking cessation remains a priority<br />

but smoking re<strong>du</strong>ction is a legitimate<br />

proposal (3-10) that applies to smokers<br />

failing in their quit attempts, who cannot<br />

or do not want to quit but are ready to<br />

re<strong>du</strong>ce their consumption, who need to<br />

abstain from smoking temporarily.<br />

Leaving aside the possible debate, the<br />

48


current definition adopted for smoking<br />

re<strong>du</strong>ction is (translation) “ a 50% decrease<br />

relative to the subject’s usual<br />

consumption, without compensatory<br />

behavior" (11).<br />

Measuring exhaled CO is the easiest way<br />

of confirming that compensatory<br />

increased smoke inhalation is not being<br />

used; measuring cotinine is the most<br />

specific way.<br />

Two studies on large cohorts have<br />

indicated its value:<br />

• The first included 19,714 Danish men<br />

and women smoking more than 15<br />

cigarettes per day, aged between 20 and<br />

93 years, followed up from 1964 to 1988<br />

(12). They were classified into the six<br />

following groups (Heavy Smokers: HS –<br />

Re<strong>du</strong>cers: R – Light Smokers: LS – Ex-<br />

Smokers: ES – New Smokers: NS). In the<br />

smokers who re<strong>du</strong>ced their consumption<br />

by 50% (R), the risk of lung cancer was<br />

significantly re<strong>du</strong>ced: Adjusted Hazard<br />

Ratio (95% CI) = 0.73 (0.54 – 0.98) versus<br />

HS = 1; LS = 0.44; Q = 0.5; ES = 0.17; NS =<br />

0.0.<br />

I Vadasz.<br />

• The second study (13) monitored<br />

49,496 smokers in Norway from 1970 to<br />

2003 and categorized them into the same<br />

six groups. It demonstrated a nonsignificant<br />

decrease in the risk of lung<br />

cancer (as well as ischemic heart disease<br />

and all the risks of cancers caused by<br />

tobacco) in smokers who had re<strong>du</strong>ced<br />

their smoking by 50% compared to those<br />

who had continued to smoke as before;<br />

this re<strong>du</strong>ced risk was less marked in the<br />

other categories considered.<br />

Figure 1 Age-standardized Incidence Rates of Lung Cancer - Incidence rates are based on the second<br />

estimation in 11151 men and 8563 women from Copenhagen, Denmark in Godtfredsen NS Prescott E,<br />

Osler M. Effect of smoking re<strong>du</strong>ction on lung cancer risk. JAMA 2005; 294 (12); 1505 - 10.<br />

49 Re<strong>du</strong>cing cigarettes consumption - Jean Perriot


Figure 2 - Point<br />

Prevalence<br />

Re<strong>du</strong>ction to<br />


Figure 3 - Point prevalence abstinence at longest follow-up In : Silagy C, Lancaster T, Stead L, Mant D,<br />

Fowler G. <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> for smoking cessation (Cochrane Review). In: The Cochrane<br />

Library, Issue 3, 2004. Chichester, UK: John Wiley & Sons, Ltd.<br />

• A group of 923 subjects smoking at<br />

least 20 cigarettes per day and with no<br />

intention of quitting were classified into 3<br />

groups: NRT (inhaler or 4 mg gum, 15 mg<br />

patch, combination of both), placebo, no<br />

intervention, and received follow-up for 6<br />

months (17). At the end of the study,<br />

smoking re<strong>du</strong>ction and the number of<br />

quit attempts was higher in the group<br />

who had used NRT as an aid than in the<br />

other groups.<br />

• A group of 411 smokers who were<br />

motivated to re<strong>du</strong>ce their consumption<br />

received follow-up for 24 months. They<br />

used 2-mg strength (FTND ≤ 5) or 4-mg<br />

strength (FTND ≥ 6) nicotine gum as<br />

required as an aid, or placebo. Follow-up<br />

involved nine 30-minute visits [18]. After<br />

24 months, 6.3% of the smokers using NRT<br />

had re<strong>du</strong>ced their cigarette consumption<br />

vs. 0.5% in the placebo group, and the 12month<br />

and 24-month cessation rates were<br />

respectively 11.2% and 9.3% in smokers<br />

using NRT vs. 3.9% and 3.4% for those<br />

using placebo.<br />

NRT treatment was perfectly well<br />

tolerated and the re<strong>du</strong>ction in cigarette<br />

51<br />

consumption correlated with that of the<br />

markers of consumption (CO, cotinine).<br />

Finally motivation to quit was increased<br />

among the re<strong>du</strong>cers.<br />

• A cohort of 143 male and female<br />

smokers with a mean FTND of 7, a mean<br />

daily cigarette consumption of 22.6 and<br />

who were ready to re<strong>du</strong>ce their<br />

consumption were assigned, after<br />

e<strong>du</strong>cation in the use of the various forms<br />

of NRT (gum, patches, tablets, spray,<br />

inhalers) for one week to a type of NRT or<br />

can choose their NRT for the next two<br />

weeks; in the last 2 weeks of the study<br />

there was "cross-over" between the 2<br />

groups of NRT methods (14). At the end of<br />

the study, greater effective re<strong>du</strong>ction in<br />

mean consumption (- 54%) was observed<br />

when the smoker could choose the type of<br />

NRT, withdrawal symptoms and cravings<br />

were well controlled, CO readings were<br />

re<strong>du</strong>ced by 35%, and smoking re<strong>du</strong>ction<br />

was perfectly well tolerated. Finally, 93%<br />

of smokers wanted to quit smoking, and<br />

33% of them wanted to do so in the<br />

following months; the rate of abstinence<br />

in<strong>du</strong>ced <strong>du</strong>ring the trial was 5%.<br />

Re<strong>du</strong>cing cigarettes consumption - Jean Perriot


• Other studies have demonstrated the<br />

value of re<strong>du</strong>cing consumption in patients<br />

with COPD ("Lung Health Study") to<br />

enable them to maintain abstinence by<br />

consuming 2-mg gum with 5 years of<br />

follow-up (14% of ex-smokers out of 3,923<br />

patients consumed 10 pieces of gum a<br />

day) or to pro<strong>du</strong>ce long-term smoking<br />

re<strong>du</strong>ction (5% of resi<strong>du</strong>al smokers<br />

consumed 7 pieces of gum a day) (20). In<br />

both cases perfect coronary tolerance was<br />

observed, while re<strong>du</strong>ced breath CO levels<br />

correlated with the decrease in the<br />

number of cigarettes consumed. During<br />

the follow-up of this study it was observed<br />

that repeated quit attempts re<strong>du</strong>ced loss<br />

of lung function, as assessed by FEV1 (21).<br />

An NRT-assisted smoking re<strong>du</strong>ction<br />

strategy in patients with asthma pro<strong>du</strong>ced<br />

slight clinical improvement but above all<br />

increased motivation to quit smoking [22].<br />

In subjects smoking more than 40<br />

cigarettes a day and agreeing to take part<br />

in a re<strong>du</strong>ction strategy with the assistance<br />

of 2-mg strength gum (10/day) for 9 weeks<br />

and to undergo endoscopic investigations<br />

(23) it was shown that smoking re<strong>du</strong>ction<br />

could be obtained in 13 of the 15<br />

volunteers, that is was accompanied by a<br />

44% re<strong>du</strong>ction in mean exhaled CO levels<br />

and that improvements in endoscopic<br />

measures of bronchoalveolar inflammation<br />

(biochemical and cellular) were rapidly<br />

shown.<br />

Fleur Van Bladeren.<br />

Many studies stress its<br />

safety<br />

The observations from the "Lung<br />

Health Study" cited above (20) and those<br />

from the study by Mahmarian et al. (24)<br />

where smokers with coronary artery<br />

disease were given high doses of nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> showed that<br />

ischemia is not exacerbated by NRT (the<br />

degree of ischemia correlated with toxic<br />

carbon monoxide intake). Finally, NRTsupported<br />

smoking re<strong>du</strong>ction is associated<br />

with improvements in indicators of<br />

hemodynamic, metabolic and biometric<br />

risk which, combined with the<br />

improvement in quality of life indicators<br />

(25), suggest that this technique is safe.<br />

Although studies need to be developed<br />

in order to identify all the biomarkers of<br />

harm and their impact on health (26-27)<br />

NRT is currently the effective <strong>therapy</strong> to<br />

help smoking cessation in smoking<br />

re<strong>du</strong>ction strategies that has been best<br />

evaluated and that presents the highest<br />

benefit/risk profile (28-29).<br />

Question on<br />

hold and future<br />

perspectives<br />

Is smoking re<strong>du</strong>ction<br />

using OTC NRT<br />

conceivable?<br />

One study (30) con<strong>du</strong>cted in 223<br />

smokers receiving treatment with 21-mg<br />

patches for 42 days simply with the<br />

support of a self-help manual found a 6month<br />

quit rate of 12% and a quit<br />

attempt rate of 22% (identical rates to those<br />

observed after 6 weeks). Of those smoking<br />

after 6 months, mean daily consumption had<br />

decreased from 28 to 18 cigarettes.<br />

Therefore, smoking re<strong>du</strong>ction supported by<br />

OTC NRT would be possible…<br />

52


However it takes little account of the<br />

undeniable long-term toxicity of smoking,<br />

even if it is re<strong>du</strong>ced, since fluctuations<br />

have been demonstrated in the behavior<br />

of smokers over the period of smoking<br />

re<strong>du</strong>ction (31), similar to the variation in<br />

the decision to quit in pregnant women.<br />

Any factors that promote support from a<br />

healthcare professional <strong>du</strong>ring smoking<br />

re<strong>du</strong>ction <strong>therapy</strong> (validation of the<br />

re<strong>du</strong>ction, developing the motivation to<br />

quit (33) then help quitting through a<br />

combination of NRT and cognitive<br />

behavior <strong>therapy</strong> with the greatest chance<br />

of success (34).<br />

Figure 4 Design of the smoking re<strong>du</strong>ction study.<br />

Weeks 2-3 comprise phase 1 of the study and<br />

weeks 4-5 comprise phase 2. Numbers indicate<br />

completion of each week. In : Fagerström KO,<br />

Tejding R, Westin Ake, Lunell E. Aiding re<strong>du</strong>ction of<br />

smoking with nicotine <strong>replacement</strong> medications :<br />

hope for recal-citrant smoker? Tobacco control<br />

1997; 6: 311-16.<br />

Figure 5 Effect of choice of medication compared<br />

with random allocation to medication on re<strong>du</strong>ction<br />

of cigarettes per day, exhaled carbon monoxide<br />

(CO), and total withdrawal sympton score.In<br />

:Fagerström KO, Tejding R, Westin Ake, Lunell E. Aiding<br />

re<strong>du</strong>ction of smoking with nicotine <strong>replacement</strong><br />

medications: hope for recalcitrant smoker ? Tobacco<br />

control 1997; 6: 311-16.<br />

53<br />

Is NRT-assisted smoking<br />

re<strong>du</strong>ction conceivable in<br />

pregnant women?<br />

Many practitioners already give NRT to<br />

pregnant women in France, even though<br />

it against the recommendations. Although<br />

a toxic effect of nicotine on the fetus<br />

cannot be excluded, carbon monoxide is<br />

mostly responsible for the hypoxia that<br />

has consequences for fetal development<br />

and pregnancy outcome (35).<br />

The results of one study to evaluate the<br />

effect of nicotine patches on the<br />

frequency of smoking cessation, birth<br />

weight and preterm delivery found no<br />

particular toxicity in women who<br />

continued to smoke (36). It seems<br />

probable that in the presence of a stable<br />

nicotine intake, any smoking re<strong>du</strong>ction<br />

that re<strong>du</strong>ces carbon monoxide intake is<br />

much less toxic than continuing with the<br />

same level of cigarette consumption, and<br />

a few studies with a low level of evidence<br />

seem to support this.<br />

Studies need to be con<strong>du</strong>cted to<br />

demonstrate definitively the value and<br />

non-toxicity of this concept in pregnant<br />

women, although they may confront<br />

methodological and ethical problems.<br />

Smoking re<strong>du</strong>ction<br />

supported by NRT in<br />

hard-core smokers<br />

Several epidemiological surveys have<br />

attempted to evaluate the prevalence of<br />

the "hard-core" phenomenon in tobacco<br />

consumers (37-40). According to these<br />

studies, it lies between 5% and 16%.<br />

Hard-core smokers constitute a group<br />

of smokers who are relatively unconvinced<br />

of the toxicity of smoking and of the<br />

dependence it in<strong>du</strong>ces, even though they<br />

exhibit high dependence and are high<br />

consumers, and they are also relatively<br />

unreceptive to messages about prevention<br />

and to restrictions on consumption. Their<br />

Re<strong>du</strong>cing cigarettes consumption - Jean Perriot


P. Crouzit.<br />

motivation to quit is low, they consult<br />

healthcare professionals less than other<br />

categories of smokers, readily consume<br />

other addictive substances and often<br />

exhibit psychopathology (41).<br />

In such patients, NRT-assisted smoking<br />

re<strong>du</strong>ction would be an ideal preparatory<br />

solution for cessation (19-42) and at<br />

worst, if they are to continue smoking, it<br />

would re<strong>du</strong>ce the toxicity of their<br />

cigarette consumption.<br />

C. Laur.<br />

Conclusion<br />

Complete smoking cessation remains a<br />

priority but since most of the toxicity<br />

associated with smoking is not <strong>du</strong>e to<br />

nicotine (the main biological factor<br />

responsible for tobacco dependence) it is<br />

justified to propose smoking re<strong>du</strong>ction<br />

for:<br />

- smokers who have failed in their<br />

quit attempt,<br />

- smokers who cannot or do not<br />

want to quit,<br />

- smokers who do not want to quit<br />

but are willing to re<strong>du</strong>ce their cigarette<br />

consumption,<br />

- finally, smokers who must<br />

temporarily abstain from smoking.<br />

Although the efficacy of such a<br />

concept has been demonstrated in<br />

re<strong>du</strong>cing the number of cigarettes<br />

smoked, increasing the desire to quit, the<br />

number of quit attempts and effective<br />

quitting, re<strong>du</strong>cing the toxicity of smoking<br />

<strong>du</strong>ring the period of smoking re<strong>du</strong>ction<br />

while maintaining the patient’s quality of<br />

life, and finally in facilitating complete<br />

cessation in the future, as has its high<br />

somatic tolerance… the objective of such<br />

interventions remains preparation for<br />

complete smoking cessation; the<br />

in<strong>du</strong>ction of NRT to re<strong>du</strong>ce cigarette<br />

consumption therefore falls under the<br />

scope of prescription and medical<br />

support. ■<br />

J.M. Pibourdin. G. Randaxhe.<br />

54


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Hartman AD, Shopland DR.<br />

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J Mal Vasc 2003 ; 28 : 293-300.<br />

(11) Prignot J. Formules<br />

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des marqueurs d’imprégnation<br />

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Osler M. Effect of smoking<br />

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(14) Hughes JR, Carpenter JM.<br />

The feasibility of smoking<br />

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(15) Silagy C, Lancaster T, Stead<br />

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(16) Bolliger CT, Zellweger JP,<br />

Danielsson T, Van Biljon X, et al.<br />

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(17) Etter JF, Laszlo E, Zellweger<br />

JP, Perrot C, et al. <strong>Nicotine</strong><br />

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trial. J Clin Psychopharmacol<br />

2002; 22: 487-495.<br />

(18) Wennicke P, Danielsson T,<br />

Landfeldt B, Westin A et al.<br />

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smokings cessation : results from<br />

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(19) Fagerström KO, Tejding R,<br />

Westin A, Lunell E. Aiding<br />

re<strong>du</strong>ction of smoking with<br />

nicotine <strong>replacement</strong><br />

medications: hope for<br />

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1997; 6: 311-316.<br />

(20) Murray RB, Bailey WC,<br />

Daniel K, Bjonnson WM, et al.<br />

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used by 3094 participants in the<br />

Lung Heath Study. CHEST 1996;<br />

109: 438-445.<br />

(21) Murray RP, Anthonisen NR,<br />

Connett JE, Wise RA, et al.<br />

Effects of multiple attemps to<br />

quit smoking and relaps to<br />

smoking on pulmonary function.<br />

Lung Health Study Reseach<br />

Group. J Clin Epidemiol 1998; 51:<br />

1317-1326.<br />

(22) Tonnesen P, Pisinger C,<br />

Huidberg S, Vennicke P, et al.<br />

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Tob Res 2005; 7: 139-148.<br />

(23) Rennard S, Daughton D,<br />

Fujita J, Oehlerking MB, et al.<br />

Short term smoking re<strong>du</strong>ction is<br />

associated with re<strong>du</strong>ction in<br />

mesures of lower respiratory<br />

tract inflammation is heavy<br />

smokers. Eur Respir J 1999; 3:<br />

752-759.<br />

(24) Mahmarian JJ, Moye LA,<br />

Nasser GA, Naguel SF et al.<br />

<strong>Nicotine</strong> patch <strong>therapy</strong> in<br />

smoking cessation re<strong>du</strong>ces the<br />

extent of exercise-in<strong>du</strong>ced<br />

myocardial ischemia. J M Coll<br />

Cardiol 1997; 30: 125-130.<br />

(25) Bolliger CT, Zellweger JP,<br />

Danielsson T, Van Biljon X, et al.<br />

Influence of long-term smoking<br />

re<strong>du</strong>ction on health risk markers<br />

and quality of life. <strong>Nicotine</strong> Tob<br />

Res 2002; 4: 433-439.<br />

(26) Hurt RD, Groghan GA,<br />

Walter TD, Groghan IT, et al.<br />

Does smoking re<strong>du</strong>ction result in<br />

re<strong>du</strong>ction of biomarkers<br />

associated with harm ? A pilot<br />

study using a nicotine inhaler.<br />

<strong>Nicotine</strong> Tob Res 2000; 2: 327-<br />

336.<br />

(27) Shields PG. Tobacco<br />

Smoking, Harm Re<strong>du</strong>ction, and<br />

Biomarkers. J Natl Cancer Inst<br />

2002; 94: 1435-1444.<br />

(28) Sims TH, Fiore MC.<br />

Pharmacotherapies for treating<br />

tobacco dependence ; what is<br />

the ideal <strong>du</strong>ration of <strong>therapy</strong> ?<br />

CNS Drugs 2002; 16: 653-662.<br />

(29) Hajek P, Mc Robbie H,<br />

Gillison F. Dependence potential<br />

of nicotine <strong>replacement</strong><br />

treatments : Effects of pro<strong>du</strong>ct<br />

type, patient characteristics and<br />

cost to user. Prev Med 2007; 44:<br />

230-234.<br />

(30) Jolicoeur DC, Richter KP,<br />

Ahluwalia JS, Mosier MC, et al.<br />

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re<strong>du</strong>ction and delayed quitting<br />

among smokers given nicotine<br />

patches and a self-help<br />

pamphlet. Subst Abuse 2003; 24:<br />

101-106.<br />

(31) Carpenter MJ, Hughes JR,<br />

Keely JP. Effect of smoking<br />

re<strong>du</strong>ction on later cessation : A<br />

pilot experimental study.<br />

<strong>Nicotine</strong> Tob Res 2003; 5:155-162.<br />

(32) Pickett KE, Wakschlag LS,<br />

Dai L, Leventhal BL. Fluctuations<br />

of material smoking <strong>du</strong>ring<br />

pregnancy. Obstet Gynecol 2003;<br />

101: 140-147.<br />

(33) Carpenter MJ, Hughes JR,<br />

Solomon W, Callas PW. Both<br />

smoking re<strong>du</strong>ction with nicotine<br />

<strong>replacement</strong> <strong>therapy</strong> and<br />

motivation al advice increase<br />

future cessation among smokers<br />

un motivated to quit. J Cons Clin<br />

Psychol 2004; 24 :371-381.<br />

(34) Aveyard P, West R.<br />

Managing smoking cessation.<br />

BMJ 2007; 335: 37-41.<br />

(35) Le Houezec J, Le Cozannet<br />

N. Les traitements nicotiniques<br />

ont ils des effets indésirables sur<br />

le patient ? Lett Pneumol 2006 ;<br />

10 : 94-99.<br />

(36) Wishborg K. <strong>Nicotine</strong><br />

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Obstet Gynecol 2000; 9: 967-971.<br />

(37) Emery S, Gilpin E A, Ake C,<br />

Farkas AJ, et al. Charaterising<br />

and Identifying ”hard-core<br />

smokers”. Implication for Further<br />

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Health 2000; 90: 387-394.<br />

(38) Jarvis MA, Wardle J, Waller<br />

J, Owen L. Prevalence of hardcore<br />

smoking in England and<br />

associated attitudes and beliejs:<br />

cross sectional study. BMJ 2005;<br />

326: 1361.<br />

(39) Augustson EM, Marcus SE.<br />

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subpopulations of continued<br />

smokers. A national perspective<br />

on the “hard-core” smoker<br />

phenomenom. <strong>Nicotine</strong> Tob Res<br />

2004; 6: 621-629.<br />

(40) Walsh RA, Paul CL, Tzelepis<br />

F, Stojanovski E. Quit smoking<br />

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hard-core smoking in New South<br />

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(41) Seidman DF, Covey LS.<br />

Helping the hard core smoker. A<br />

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55 Re<strong>du</strong>cing cigarette consumption - Jean Perriot


Session 4<br />

Increase<br />

in the prescribed dose<br />

and possibility<br />

to combine 2 NTRs<br />

57


References<br />

Aveyard P, Johnson C,<br />

Fillingham S, Parsons A,<br />

Murphy M. Nortriptyline<br />

plus nicotine <strong>replacement</strong><br />

versus placebo plus<br />

nicotine <strong>replacement</strong> for<br />

smoking cessation:<br />

pragmatic randomised<br />

controlled trial. BMJ. 2008;<br />

336(7655): 1223-7.<br />

Dale LC, Hurt RD, Offord<br />

KP, Lawson GM, Croghan<br />

IT, Schroeder DR. Highdose<br />

nicotine patch<br />

<strong>therapy</strong>. Percentage of<br />

<strong>replacement</strong> and smoking<br />

cessation. JAMA. 1995;<br />

274: 1353-8.<br />

Hughes JR, Lesmes GR,<br />

Hatsukami DK, Richmond<br />

RL, Lichtenstein E, Jorenby<br />

DE, Broughton JO,<br />

Fortmann SP, Leischow SJ,<br />

McKenna JP, Rennard SI,<br />

Wadland WC,<br />

Heatley SA. Are higher<br />

doses of nicotine<br />

<strong>replacement</strong> more effective<br />

for smoking cessation?<br />

<strong>Nicotine</strong> Tob Res. 1999; 1:<br />

169-74.<br />

Hughes JR, Stead LF,<br />

Lancaster T.<br />

Antidepressants for<br />

smoking cessation. 2008.<br />

The Cochrane<br />

Colalboration. Published by<br />

John Wiley & Sons, Ltd.<br />

Medioni J, Berlin I, Mallet<br />

A. Increased risk of relapse<br />

rate after stopping nicotine<br />

<strong>replacement</strong> therapies : a<br />

mathematical modelling<br />

approach. Addiction. 2005;<br />

100: 247-54.<br />

Murray RP, Nides MA,<br />

Istvan JA, Daniels K. Levels<br />

of cotinine associated with<br />

long-term ad-libitum<br />

nicotine polacrilex use in a<br />

clinical trial. Addict Behav.<br />

1998; 23: 529-35.<br />

How to optimise the<br />

effectiveness of<br />

nicotine <strong>replacement</strong><br />

therapies ?<br />

Ivan Berlin<br />

Groupe Hospitalier Pitié Salpêtrière<br />

Faculty of medecine, Université Pierre & Marie Curie - Paris, France.<br />

<strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> (NRT) has<br />

been shown to be an effective aid to<br />

smoking cessation.<br />

It increases the probability of abstinence<br />

by 77% on average (Silagy et al. 2007).<br />

This presentation will review the<br />

possibilities of optimizing the efficacy of<br />

NRT.<br />

The following aspects of efficacy<br />

optimization will be addressed:<br />

1. high-dose NRT,<br />

2. combining several types of NRT, with<br />

different routes of administration,<br />

3. NRT before the quit date,<br />

4. combining NRT with bupropion or<br />

nortriptyline (antidepressants shown to be<br />

effective in smoking cessation),<br />

5. tailored dose adjustment of NRT,<br />

6. what happens if NRT is stopped?<br />

Figure 1 high dose nicotine patch studies In : Silagy C, Lancaster T, Stead L, Mant D, Fowler G.<br />

<strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> for smoking cessation (Cochrane Review). In: The Cochrane Library,<br />

Issue 3, 2004. Chichester, UK: John Wiley & Sons, Ltd.<br />

58


Use of high-dose NRT<br />

As a rule, increasing the dose of a drug<br />

shifts the dose-response curve to the right.<br />

The use of high doses firstly increases<br />

efficacy because more patients become<br />

responders, so more responders are<br />

"recruited"; secondly, by recruiting more<br />

responders, more patients exhibiting<br />

adverse effects will also be recruited. Highdose<br />

NRT may therefore suppress the urge<br />

to smoke more strongly, but more patients<br />

will experience nausea, for example.<br />

Studies to evaluate high fixed doses of<br />

NRT have not shown greater abstinence<br />

with high doses of NRT (35 or 44 mg/day)<br />

compared to the standard doses. These<br />

high doses lessened the withdrawal<br />

symptoms more than the lower standard<br />

doses, but at the expense of developing<br />

adverse effects. This is no surprising<br />

because every patient has his/her own<br />

optimum dose of nicotine, and doses that<br />

exceed the optimum dose do not enhance<br />

efficacy but may cause adverse effects.<br />

According to a meta-analysis of several<br />

studies that compared high fixed doses of<br />

NRT with standard doses, the high doses<br />

did not improve abstinence rate (odds ratio<br />

(OR): 1.18, 95% confidence interval (95%<br />

CI): 0.9-1.55) (Silagy et al. 2007). See<br />

Figure 1.<br />

Combining several types<br />

of NRT with different<br />

routes of administration<br />

The rationale for combining several types<br />

of NRT with different routes of<br />

administration (transdermal plus buccal<br />

absorption route: patch plus gum, patch<br />

plus lozenges, patch plus inhaler) is to<br />

provide by the patch a relatively stable<br />

plasma nicotine concentration, with no<br />

plasma peaks, to which are added plasma<br />

nicotine peaks, resulting from the more<br />

rapid absorption rate with the bucal<br />

absorption pro<strong>du</strong>cts. The combination of<br />

slowly absorbed and quickly absorbed<br />

pharmaceutical forms pro<strong>du</strong>ces a closer<br />

imitation of the situation while smoking:<br />

fluctuating concentrations of nicotine in<br />

the plasma and therefore the brain after<br />

each cigarette at the time of nicotine<br />

steady-state. The principle is similar to that<br />

seen in the treatment of type 1 (insulindependent)<br />

diabetes, in which fast-acting<br />

insulin is administered with meals, on top<br />

of the stable plasma insulin concentrations<br />

provided by an injection of intermediate or<br />

slow-acting insulin.<br />

The efficacy of combinations of several<br />

types of NRT using different routes of<br />

administration has been evaluated in many<br />

therapeutic trials. Meta-analysis of these<br />

trials shows that NRT combinations are<br />

more effective in terms of smoking<br />

abstinence than one type of NRT used<br />

alone (OR: 1.42, 95% CI: 1.14-1.76) (Silagy<br />

et al. 2007).<br />

NRT treatment before the<br />

quit date<br />

The summaries of pro<strong>du</strong>ct characteristics<br />

monography for nicotine patches<br />

recommend stopping smoking on the day<br />

NRT is started. However, this goal is not<br />

always achieved in clinical practice. This<br />

raises the question of whether there is any<br />

benefit and/or risk from intro<strong>du</strong>cing<br />

nicotine patch <strong>therapy</strong> before the quit<br />

date.<br />

The first randomized placebo-controlled<br />

study dates from 2004 (Schuurman et al.<br />

2004). See Figure 2.<br />

Placebo or one 15-mg nicotine patch/day<br />

were administered for 2 weeks before the<br />

quit date. After the quit date, the two<br />

groups received nicotine patches at a<br />

strength of 15 mg/day then 10 mg/day. Six<br />

months after the quit date, the abstinence<br />

rate was significantly higher in the nicotine<br />

pretreatment group than in the placebo<br />

pretreatment group (22% versus 12%).<br />

Other studies have confirmed this benefit<br />

(Shiffman & Ferguson 2008). This<br />

therapeutic benefit was not associated<br />

with an increase in adverse effects, and the<br />

tolerability of the nicotine pretreatment<br />

59 How to optimise the effectiveness of nicotine... - Ivan Berlin<br />

Rose JE, Behm FM,<br />

Westman EC, Kukovich P.<br />

Precessation treatment<br />

with nicotine skin<br />

patch facilitates smoking<br />

cessation. <strong>Nicotine</strong> Tob Res.<br />

2006; 8: 89-101.<br />

Schuurmans MM, Diacon<br />

AH, van Biljon X, Bolliger<br />

CT. Effect of pre-treatment<br />

with nicotine patch on<br />

withdrawal symptoms and<br />

abstinence rates in smokers<br />

subsequently quitting with<br />

the nicotine patch: a<br />

randomized controlled trial.<br />

Addiction. 2004; 99: 634-<br />

40.<br />

Shiffman S, Ferguson SG.<br />

<strong>Nicotine</strong> patch <strong>therapy</strong><br />

prior to quitting smoking :<br />

a meta-analysis.<br />

Addiction 2008; 103: 557-<br />

63.<br />

Silagy C, Lancaster T, Stead<br />

L, Mant D, Fowler G.<br />

<strong>Nicotine</strong> <strong>replacement</strong><br />

<strong>therapy</strong> for smoking<br />

cessation. 2007 The<br />

Cochrane Collaboration.<br />

Published by John Wiley &<br />

Sons, Ltd.


was similar regardless of the type of<br />

cigarette smoked <strong>du</strong>ring the pretreatment<br />

period (Rose et al. 2006). The use of<br />

nicotine patches before the planned quit<br />

date therefore seems justified.<br />

Figure 2 - Sustained abstinence rates<br />

- AP = active nicotine patch pre-treatment<br />

group<br />

- PP = placebo patch pre-treatment group<br />

P


Tailored dose adjustment<br />

of NRT<br />

A smoker’s nicotine requirement, which<br />

can be assessed by measuring salivary<br />

cotinine, remains identical for several years.<br />

In fact, smokers’ salivary cotinine levels<br />

remain stable whether they are smoking,<br />

using NRT while abstaining from smoking<br />

or using cigarettes and NRT simultaneously<br />

(Murray et al. 1998). This suggests that all<br />

smokers have their own "nicotine dose".<br />

This dose, expressed by salivary cotinine for<br />

example, exhibits considerable interindivi<strong>du</strong>al<br />

variability (about 30-fold).<br />

NRT replaces the nicotine obtained<br />

through smoking and tailored dose<br />

adjustment is therefore necessary for<br />

greater efficacy. In clinical practice, in the<br />

absence of experimental data, smoking<br />

cessation specialists tend to adjust the daily<br />

dose of NRT on the basis of the withdrawal<br />

symptoms. Another method for adjusting<br />

the dose would be to measure salivary<br />

cotinine before smoking cessation and to<br />

adjust the daily dose of NRT to obtaining<br />

the same salivary concentration of cotinine<br />

after smoking cessation, than in smoking<br />

state and provide by this means a 100%<br />

nicotine <strong>replacement</strong>. Some ongoing<br />

studies will answer these questions.<br />

What happens if NRT is<br />

stopped?<br />

If smokers have their own personal<br />

nicotine needs which remain stable over<br />

time, stopping NRT after a short period of<br />

administration (3 or 6 months) may<br />

compromise its long-term efficacy.<br />

At the end of the treatment period, the<br />

relationship between NRT and smoking<br />

abstinence is dose-dependent (Hughes et<br />

al. 1999). This dose-dependent efficacy<br />

seems to disappear after stopping NRT<br />

(Hughes et al. 1999). A modeling study<br />

including 21 smoking cessation trials<br />

comparing NRT to placebo showed that the<br />

probability of relapse after stopping NRT<br />

was 44% higher after withdrawal of NRT<br />

than after withdrawal of placebo See<br />

Figure 4 (Medioni et al. 2005). If future<br />

studies confirm this, it means that NRT<br />

should be administered for longer periods<br />

than currently recommended and that it<br />

should be tapered off very gra<strong>du</strong>ally.<br />

Figure 4 - Likelihood of relapse after stopping<br />

NRT or placebo (dotted line) In Medioni et al.<br />

2005.<br />

Conclusions<br />

1. It has not been demonstrated that high<br />

fixed doses of NRT lead to higher abstinence<br />

rates than the doses usually used.<br />

2. Combinations of several types of NRT<br />

with different routes of administration can<br />

be more effective than using one type of<br />

NRT alone.<br />

3. NRT pretreatment (with patches)<br />

before the quit date increases the<br />

probability of abstinence.<br />

4. To date, there are no experimental<br />

data to justify combining NRT with<br />

bupropion (or with nortriptyline).<br />

5. Tailored dose adjustment of NRT is<br />

frequently used by smoking cessation<br />

specialists in clinical practice. Experimental<br />

data should confirm whether or not this<br />

therapeutic approach increases the<br />

probability of abstinence and whether this<br />

dose adjustment should be based on the<br />

clinical symptoms of smoking cessation or<br />

on determining salivary cotinine levels.<br />

6. Some data suggest that there may be a<br />

risk of relapse if NRT is withdrawn too<br />

soon. Future studies should provide precise<br />

answers about the possible relationships<br />

between withdrawal of NRT and the risk of<br />

relapse to smoking. ■<br />

61 How to optimise the effectiveness of nicotine... - I Berlin


Session 5<br />

Temporary cessation<br />

63


References<br />

(1) Hughes J, Callas P,<br />

Peters E. Interest in<br />

gra<strong>du</strong>al cessation. Nic<br />

Tob &Res 2007: 671-675.<br />

(2) Gallup Organization.<br />

Attitudes and<br />

behavoiurs related to<br />

smoking cessation.<br />

1999. New York.<br />

(3) Jiménez-Ruiz CA,<br />

Fagerström KO.<br />

Re<strong>du</strong>ction to quit.<br />

Algorhytm. Prev Tab<br />

2006; 8(Sup): 34-37.<br />

(4) Peri-operative<br />

smoking control. French<br />

Conference of Experts.<br />

2005.<br />

(5) Teadom A, Cropley<br />

M. Effects of preoperative<br />

smoking<br />

cessation on the<br />

incidence and risk of<br />

intraoperative and<br />

post-operative<br />

complications in a<strong>du</strong>lts<br />

smokers: a systematic<br />

review. Tobacco Control<br />

2006; 15: 352-358.<br />

(6) Warner D. Preoperative<br />

smoking<br />

cessation. The role of<br />

primary care providers.<br />

Mayo Clin Proc 2005;<br />

80: 252-258.<br />

(7) Rigotti N, Munafo M et<br />

al. Interventions for<br />

smoking cessation in<br />

hospitalized patients.<br />

Cochrane Database<br />

System Review. Issue 4.<br />

2003.<br />

Intro<strong>du</strong>ction<br />

<strong>Nicotine</strong><br />

<strong>replacement</strong> <strong>therapy</strong><br />

for temporary<br />

abstinence<br />

<strong>Carlos</strong> A. Jiménez-Ruiz<br />

Smoker’s Clinic, Communidad de Madrid<br />

Madrid, Spain.<br />

Smoking is the first preventable cause of<br />

death. About half of smokers will prematuraly<br />

die from smoking–related disorders.<br />

Nevertheless, the mayority of smokers do not<br />

want to make a serious attempt to quit in the<br />

next month. Some of them want to re<strong>du</strong>ce the<br />

number of cigarettes smoked daily and most<br />

of them want to continue smoking at the<br />

same level (1-3).<br />

Some smokers unwilling to quit can be<br />

forced to temporary abstinence. A smoker in<br />

temporary abstinence can be defined as a<br />

smoker who does not want to quit and, for<br />

different reasons, must refrain from smoking<br />

<strong>du</strong>ring a period of time. For example: when<br />

the smoker is at home, at workplace, in public<br />

transports or at hospital. Moreover, different<br />

studies have demonstrated that quitting<br />

smoking before surgery is associated with a<br />

significantly decrease in the rate of surgical<br />

complications (4-6). So, physicians should<br />

recommend their patients to quit smoking or,<br />

at least, to maintain temporary abstinence<br />

before being operated on.<br />

On the other hand, we have to consider<br />

that temporary abstinence can cause nicotine<br />

withdrawal syndrome and craving. These<br />

symptoms can bother the smoker his/her real<br />

life and even can be dangerous for the subject<br />

if he/she is hospitalized <strong>du</strong>e to a disease<br />

related or not with smoking. There are some<br />

reasons that can support the use of <strong>Nicotine</strong><br />

Replacement Therapy (NRT) to help smokers<br />

to keep temporary abstinence.<br />

Temporary abstinence is a novel subject<br />

and we are in lack of enough scientific<br />

experience to be able to make evidence-based<br />

guidelines for this issue. Nevertheless, taking<br />

into account the results of different studies<br />

some recommendations can be made. In this<br />

chapter, several questions will be addressed.<br />

At the end of the chapter, some<br />

recommendations are written according to<br />

the answers to these questions.<br />

S. Nardini.<br />

64


Should health<br />

professionals recommend<br />

temporary abstinence?<br />

All health professionals should advice<br />

smokers to quit. Quitting smoking is the<br />

healthiest measure for every smoker.<br />

Nevertheless, most smokers do not want to<br />

quit. Should these smokers unwilling to quit<br />

be advised of temporary abstinence?<br />

Most smokers unwilling to quit can be<br />

forced to maitain temporary abstinence in<br />

different real-life situations (at home,<br />

workplaces, public transportation, bars and<br />

restaurants, and so on). Sometimes these<br />

occasions last less than 4-8 hours and smokers<br />

can avoid smoking without suffering craving<br />

or nicotine withdrawal symptoms.<br />

Nevertheless, others can be prolonged and the<br />

smokers will suffer from nicotine withdrawal.<br />

In these cases, the use of NRT to maintain<br />

temporary abstinence could be<br />

recommended by health professionals.<br />

There are two special situations where<br />

temporary abstinence could be recommended<br />

by health professionals to smokers unwilling<br />

to quit: hospitalized smokers and smokers<br />

who are going to be operated on (Elective<br />

surgery). In these cases temporary abstinence<br />

can be followed of health benefits and can<br />

increase the motivation to quit definitely (7-<br />

11).<br />

Should health<br />

professionals recommend<br />

using NRT for temporary<br />

abstinence?<br />

Most smokers have dependence on nicotine.<br />

They need to consume the drug in order to<br />

keep an adecuate level of nicotine in their<br />

blood. Each smoker is able to obtain from<br />

cigarettes the amount of nicotine that he/she<br />

needs. Smokers vary the number of cigarette<br />

or the number of inhalations or even, the form<br />

of inhalation to obtain adecuate level of<br />

nicotine in the blood (12).<br />

Nevertheless, half-life of nicotine is about<br />

60-120 minutes. It is metabolized into cotinine<br />

in a short period of time. So, temporary<br />

abstinence can pro<strong>du</strong>ce a re<strong>du</strong>ction of<br />

nicotine in the blood and leads the smoker to<br />

withdrawal syndrome.<br />

Most smokers are dependent on nicotine<br />

and abstinence from smoking results in<br />

tobacco withdrawal and craving, which<br />

manifest as clinical symptoms within a few<br />

hours of smoking the last cigarette. Craving<br />

and withdrawal symptoms can be controlled<br />

by supplying nicotine from sources other than<br />

cigarettes, such as NRT. Clinical studies of<br />

short-term abstinence show that all NRT<br />

formulations relieve tobacco withdrawal<br />

symptoms and craving. Using NRT to maintain<br />

temporary abstinence allows smokers to<br />

re<strong>du</strong>ce their cigarette consumption (and<br />

intake of toxic substances in smoke) while<br />

maintaining their nicotine dose. Data suggests<br />

that smokers who use NRT can significantly<br />

re<strong>du</strong>ce the withdrawal symptoms and craving<br />

caused by abstaining from cigarettes (13).<br />

There are several forms of NRT, including<br />

nicotine gum, patches, lozenges, nasal spray<br />

and oral inhalators. All of them are available<br />

in the European Union and most of them do<br />

not need medical prescription. Use of these<br />

pro<strong>du</strong>cts will approximately double the rate of<br />

successful quitting in the outpatient setting<br />

(14). Moreover, all of them can help smokers<br />

to maintain temporary abstinence. On the<br />

other hand, NRT is well tolerated and has a<br />

documented record of safety in healthy<br />

smokers and, even in smokers with smokingrelated<br />

diseases (15).<br />

Taking into account these considerations,<br />

the answer to this question would be as<br />

follows: When the <strong>du</strong>ration of temporary<br />

abstinence is going to be as large as can cause<br />

nicotine withdrawal and craving, health<br />

professionals should recommend to their<br />

patients using NRT. In these cases, NRT is<br />

effective to alleviate nicotine withdrawal<br />

symptoms and craving and has a broad safety<br />

profile.<br />

65 <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> … - <strong>Carlos</strong> A. Jiménez-Ruiz<br />

(8) Molyneux A, Lewis S<br />

et al. Clinical trial<br />

comparing NRT plus<br />

brief counselling, brief<br />

counselling alone, and<br />

minimal intervention<br />

on smoking cessation in<br />

hospital inpatients.<br />

Thorax 2003; 58: 484-<br />

488.<br />

(9) Simon JA et al.<br />

Smoking cessation after<br />

surgery. A randomized<br />

trial. Arch Interm Med.<br />

1997; 157: 1371- 6.<br />

(10) Stevens et al.<br />

Implementation and<br />

effectiveness of a brief<br />

smoking cessation<br />

intervention for<br />

hospital patients.<br />

Medical Care 2000; 38:<br />

451-9.<br />

(11) Bize et al.<br />

Effectiveness of a low<br />

intensity smoking<br />

cessation intervention<br />

for hospitalized<br />

patients. Eur J Cancer<br />

Prev. 2006; 15: 464-70.<br />

(12) Benowitz N.<br />

Pharmacology of<br />

nicotine. Addiction and<br />

therapeutics. An Rev<br />

Pharmacol Toxicol.<br />

1996; 36: 597-613.<br />

(13) Le Houzec et al.<br />

Smoking re<strong>du</strong>ction and<br />

temporary abstinence:<br />

new approaches for<br />

smoking cessation. J<br />

Mal Vas 2003; 28: 293-<br />

300.<br />

(14) Stead LF et al.<br />

<strong>Nicotine</strong> <strong>replacement</strong><br />

<strong>therapy</strong> for smoking<br />

cessation. Cochrane<br />

Database System<br />

Review 2008 CD000146<br />

Review.


(15) Fiore MC, Jaen CR<br />

et al. Treating Tobacco<br />

use and dependence:<br />

2008 Update. Clinical<br />

Practice Guideline.<br />

Department of Health<br />

and Human Services.<br />

Public Health Service.<br />

2008.<br />

(16) McBride CM et al.<br />

Understanding the<br />

potential of teachable<br />

moments. The case of<br />

smoking cessation.<br />

Health E<strong>du</strong>c Res 2003<br />

18: 156-170.<br />

(17) France EK et al.<br />

Smoking cessation<br />

interventions among<br />

hospitalized patients.<br />

Whta have we<br />

learned?. Prev Med<br />

2001; 32: 376-388.<br />

(18) Niaura R et al.<br />

Relevance of cue<br />

reactivity to<br />

understanding alcohol<br />

and smoking relapse. J<br />

Abnorm Psychol 1988;<br />

97: 133-152.<br />

(19) Rigotti N, Munafo<br />

M et al. Interventions<br />

for smoking cessation<br />

in hospitalized patients.<br />

Cochrane Database<br />

System Review. Issue 4.<br />

2007.<br />

(20) Cropley et al. The<br />

effectiveness of<br />

smoking cessation<br />

interventions prior to<br />

surgery. A sytematic<br />

review. Nic Tob &Res<br />

2008 10: 407-412.<br />

In which cases should we<br />

recommend NRT for<br />

temporary abstinence?<br />

NRT for temporary abstinence can be<br />

recommeded in three different cases:<br />

a) in those smokers who are forced to live<br />

in smoke-free enviromments <strong>du</strong>ring a period<br />

of time that is as large as causing them craving<br />

or nicotine withdrawal syndrome (among<br />

these patients we have to consider those who<br />

are travelling frequently in public transports,<br />

those who work in smoke-free worplaces,<br />

those who like or are force to keep smoke-free<br />

enviromment at home and those who visit<br />

smoke-free recreational venues: discos, bars,<br />

restaurants and so on),<br />

b) in those smokers who are hospitalized<br />

for different reasons and,<br />

c) in those smokers who are going to be<br />

operated on (“elective surgery”).<br />

Which benefits can<br />

pro<strong>du</strong>ce temporary<br />

abstinence in hospitalized<br />

patients?<br />

Hospitalization is a excellent “teachable<br />

moment” for smokers. A “teachable moment”<br />

is an event that motivates indivi<strong>du</strong>als to<br />

change health behaviours that increase risk<br />

(16). There is strong evidence that<br />

hospitalization is associated with an increased<br />

rate of spontaneous smoking cessation<br />

compared with the general population. It has<br />

been found that 1-year self-reported tobacco<br />

abstinence rates after general hospitalization<br />

tend to be higher than the rate of<br />

spontaneous quitting in the general<br />

population( approximately 10% to 15% vs 3%<br />

to 5%, respectively (17).<br />

On the other hand, we have to consider<br />

that the hospitalized smoker is living in a<br />

smoke-free enviromment that can help<br />

him/her to maintain abstinence. Nevertheless,<br />

nicotine is highly addicitve, and abstinence<br />

from nicotine can causes withdrawal<br />

symptoms and craving that could present a<br />

barrier to quitting. In this context, using NRT in<br />

hospitalized smokers in order to help them to<br />

maintain abstinence should be strongly<br />

recommended.<br />

Probably, quitting smoking while<br />

hospitalization can be easier than in other<br />

enviromment. Smoking behaviour is modified<br />

to a substantial degree by envirommental cues<br />

that become associated with smoking.<br />

Withdrawal symptoms may be accentuated in<br />

the smokers natural enviromment because<br />

these smoking related cues elicit withdrawal<br />

syndrome. When the smoker s enviromment is<br />

modified, such as cues may not be operative<br />

and withdrawal symptoms may be better<br />

controlled by NRT (18).<br />

A recent meta-analysis in hospitalized<br />

patients has found that intensive counselling<br />

which is provided to the patient while he/she<br />

is hospitalized and which is prolonged <strong>du</strong>ring<br />

at least one month after discharge, is the only<br />

intervention that can increase significantly<br />

smoking cessation rates after discharge. OR:<br />

1.65 (1.44-1.90) (19). Nevertheless, authors<br />

conclude that although combining NRT with<br />

intensive counselling has not increased<br />

significantly the smoking cessation rates, the<br />

evidences of benefits from using NRT have<br />

increased with respect to the last revision (19).<br />

Moreover, in a recent systematic review of 7<br />

randomized controlled trials that included 870<br />

patients hospitalized for surgery, Cropley et al<br />

concluded that all interventions ( most of<br />

them counselling plus NRT) were effective<br />

with the short term quit rates as high as 95%<br />

and averaging 55% (20). Nevertheless, authors<br />

agree with the need to prolonged<br />

interventions after discharge.<br />

So taking into account all of these<br />

considerations, we can conclude that<br />

hospitalization is an excellent “teachable<br />

moment” and represents a unique<br />

opportunity for health professionals to advice<br />

their patients to quit. Those, who in spite of<br />

that, do not want to quit definitely should be<br />

66


ecommended temporary abstinence while<br />

hospitalization. NRT could be used in order to<br />

help them to keep temporary abstinence<br />

without suffering from nicotine withdrawal<br />

syndrome.<br />

Which benefits can<br />

pro<strong>du</strong>ce temporary<br />

abstinence in perioperative<br />

period?<br />

Smoking contributes to many<br />

perioperative complications. Three are of<br />

greatest clinical importance: pulmonary<br />

complications, cardiovascular complications<br />

and complications related to impaired healing<br />

of bones and surgical wounds (4-6). Table 1<br />

shows smoking contributing factors to these<br />

complications.<br />

Quitting smoking re<strong>du</strong>ces the risk of perioperative<br />

complications. What is unknown in<br />

most cases is the minimum <strong>du</strong>ration of<br />

preoperative abstinence to confer benefit. We<br />

know that the frequency of complications in<br />

patients who have been abstinent for several<br />

months is similar to that of patients who have<br />

never smoked (21-22). Some studies suggest<br />

that at least two months of preoperative<br />

abstinence is required to fully benefit (21-23).<br />

Nevertheless, there is some evidence that<br />

quitting smoking at least 3 weeks before<br />

surgery is beneficial as, it re<strong>du</strong>ces the local<br />

surgical site s complications. Eventhough,<br />

smoking cessation less than 48 hours before<br />

surgical proce<strong>du</strong>re should be beneficial (4-6).<br />

P. Vitoria.<br />

Temporary increasing in cough and bronchial<br />

secretions are the only related adverse events<br />

that can be harmful just after smoking<br />

cessation. Nevertheless, this conclusion is not<br />

supported on data and smokers should not be<br />

discouraged from quitting before surgery on<br />

this basis (4-6).<br />

Taking into account these connsiderations,<br />

we can conclude that all smokers should be<br />

advice to quit before surgical proce<strong>du</strong>re. To<br />

smokers who don’t want to quit definitely<br />

temporary abstinence should be strongly<br />

recommended at least 3 weeks before surgery.<br />

NRT can be used in order to help smokers to<br />

keep temporary abstinence <strong>du</strong>ring<br />

preoperative period. We know that NRT<br />

provides a greater number of temporary<br />

abstinence among surgery hospitalized patients<br />

versus absence of proce<strong>du</strong>re. RR of abstinence<br />

with NRT is 1.38 (4-6). On the other hand, we<br />

know that using NRT to obtain temporary<br />

abstinence <strong>du</strong>ring the pre-operative period has<br />

another interesting advantages:<br />

a) it re<strong>du</strong>ces withdrawal symptoms and<br />

craving and help smokers to keep abstinence,<br />

b) it re<strong>du</strong>ces the amount of CO inhaled and<br />

improve oxygenation,<br />

c) it may re<strong>du</strong>ce aggressiveness observed<br />

<strong>du</strong>ring an 8 hours smoking deprevation,<br />

d) it can control the changes observed in<br />

the electroencephalogram <strong>du</strong>e to smoking<br />

deprevation,<br />

e) it can diminish the need for analgesic<br />

drug <strong>du</strong>ring the post-operative period.<br />

However, concerns have been expressed<br />

regarding the safety of NRT for surgical<br />

patients. These concerns arise from the facts<br />

that smokers are at increased risk of impaired<br />

healing of surgical wounds and bones (24).<br />

We know that prolonged exposure of<br />

experimental animals to high doses of nicotine<br />

can impair the healing of surgical wounds (25).<br />

Nevertheless, no studies have used doses of<br />

nicotine comparable to those provided by<br />

NRT.<br />

67 <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> … - <strong>Carlos</strong> A. Jiménez-Ruiz<br />

(21) Warner Ma et al.<br />

Role of preoperative<br />

cessation of smoking<br />

and other factors in<br />

post-operative<br />

pulmonary<br />

complications: a<br />

blinded prospective<br />

study of coronry artery<br />

bypass patients. Mayo<br />

Clinic Porc 1989; 64:<br />

609-616.<br />

(22) Nakawaga et al<br />

Relationship between<br />

the <strong>du</strong>ration of the preoperative<br />

smoke- free<br />

period and the<br />

incidence of postoperative<br />

pulmonary<br />

complications after<br />

pulmonary surgery.<br />

Chest 2001; 120: 705-<br />

710.<br />

(23) Warner MA et al.<br />

Preoperative cessation<br />

of smoking and<br />

pulmonary<br />

complications in<br />

coronary artery bypass<br />

patients.<br />

Anesthesiology 1984;<br />

60: 380-383.<br />

(24) Benowitz et al.<br />

Cardiovascular toxicity<br />

of nicotine: implications<br />

for nicotine<br />

<strong>replacement</strong> <strong>therapy</strong>. J<br />

Am Coll Cardiol 1997;<br />

29: 1422-1431.<br />

(25) Forrest CR et al.<br />

Evidence for nicotine<br />

in<strong>du</strong>ce skin flap<br />

ischemic necrosis in the<br />

pig. Can J Physiol<br />

Pharmacol 1994; 72: 30-<br />

38.<br />

(26) Sorensen LT et al.<br />

Abstinence from<br />

smoking re<strong>du</strong>ces<br />

incisional wound<br />

infection: a randomized<br />

controlled trial. Am<br />

Surg 2003; 238: 1-5.


(27) Broms U et al.<br />

Smoking re<strong>du</strong>ction<br />

predicts cessation.<br />

Longitudinal evidence<br />

from the Finish a<strong>du</strong>lt<br />

twin cohort. 2008; 10:<br />

423-27.<br />

(28)<br />

Stead LF et al.<br />

Interventions to re<strong>du</strong>ce<br />

harm from continued<br />

tobacco use. Cochrane<br />

Database System<br />

Review. CD 005231.<br />

12007.<br />

(29)<br />

Rigotti N et al.<br />

Predictors of smoking<br />

cessation after coronary<br />

artery bypass graft<br />

surgery. Results of a<br />

randomized trial with 5<br />

year follow up. An<br />

Interm Med 1994; 120:<br />

287-293.<br />

(30)<br />

Warner DO et al.<br />

Smoking behabiour and<br />

perceived stress in<br />

cigarettes smokers<br />

undergoing elective<br />

surgery. Anesthesiology<br />

2004; 100: 1125-1137.<br />

Table 1-Smoking as a contributing factor for perioperative complications<br />

1. - Pulmonary complications. The increase in the relative risk (RR) is 1.7.<br />

1.1.- Smokers can suffer from smoking related respiratory pathology.<br />

1.2.- Even “healthy” smokers can suffer from:<br />

1.2.1.- Impaired ciliary function.<br />

1.2.2.- Increased mucus pro<strong>du</strong>ction.<br />

1.2.3.- Retained secretions.<br />

1.2.4.- Alterations in lung inmune responses.<br />

2.- Cardiovascular complications. The increase in the relative risk (RR) is 3.<br />

2.1.- Smokers can suffer from smoking related cardiovascular disorders.<br />

2.2.- Even “healthy” smokers can suffer from:<br />

2.2.1.- Endothelial damage.<br />

2.2.2.- Oxidant injury.<br />

2.2.3.- Neutrophil activation.<br />

2.2.4.- Enhacement of thrombosis.<br />

2.2.5.- Enhacement of aterosclerosis.<br />

2.2.6.- Increasing coagulability.<br />

2.2.7.- Increasing simpathetic tone.<br />

2.2.8.- Decreasing the capacity of blood to carry oxygen.<br />

3.- Complications related to impaired healing of bones and surgical wounds.<br />

The increase in the relative risk (RR) is 2.<br />

3.1.- Smokers can suffer from smoking related wounds disorders. Among these:<br />

wound dehiscence and infection, and nonunion of fractured bones.<br />

3.2.- Even “healthy” smokers can suffer from:<br />

3.2.1.- Decreasing tissue oxygenation secondary to vasoconstriction,<br />

carboxyhemoglobin and inhibition of inmune responses.<br />

An important recent investigation studied<br />

experimental wounds in smokers.<br />

One group of smokers continued smoking,<br />

another group stopped smoking without<br />

using NRT and another group quit smoking<br />

using NRT.<br />

Abstinence from smoking substantially<br />

decreased the rate of wound infection,<br />

whether or not NRT was used (26).<br />

This study supports the idea that NRT is<br />

safe in these patients.<br />

Taking into account all of these<br />

considerations we can conclude that NRT<br />

should considered for helping surgical patients<br />

maintain abstinence before and after surgery.<br />

68


Can temporary abstinence<br />

promote complete<br />

smoking cessation?<br />

This is an important issue to be considered<br />

before health professionals could recommend<br />

temporary abstinence. Recommendation of<br />

temporary abstinence could be misunderstood<br />

by some smokers as a permission to continue<br />

smoking. Moreover, temporary abstinence<br />

could lead to some smokers to a<br />

misinterpretation of being able to control<br />

their smoking and then have a bad influence<br />

on their motivation to quit. So, it is important<br />

to analize how temporary abstinence can<br />

influence on the motivation to quit. Does<br />

temporary abstinence increase or decrease<br />

motivation to quit definitely?<br />

To our knowledge there is no data on this<br />

issue. Nevertheless, we know that re<strong>du</strong>cing<br />

the number of cigarettes smoked daily, using<br />

or not NRT, promotes smoking cessation (1-27-<br />

28). Even, we know that using NRT to obtain<br />

smoking re<strong>du</strong>ction pro<strong>du</strong>ces higher smoking<br />

cessation rates than using placebo (28).<br />

Temporary abstinence can be considered as a<br />

way of re<strong>du</strong>cing smoking. So, from this point<br />

of view it could be drawn that temporary<br />

abstinence promotes smoking cessation.<br />

Nevertheless, more studies are needed before<br />

drawing substantive conclusions.<br />

Although, there are not any direct data on<br />

the relationship between temporary<br />

abstinence and complete smoking cessation,<br />

we have many indirect data which suggest<br />

that temporary abstinence can promotes<br />

smoking cessation.<br />

Some of these data are as follows:<br />

a) temporary abstinence <strong>du</strong>ring<br />

hospitalization, in these cases, it has been<br />

found that 1-year self-reported tobacco<br />

abstinence rates after general hospitalization<br />

tend to be higher than the rate of<br />

spontaneous quitting in general population<br />

(approximately 10% to 15% vs 3% to 5%,<br />

respectively (17),<br />

b) temporary abstinence before and after<br />

surgery. Smokers who have kept temporary<br />

abstinence before being operated on have<br />

higher tobacco abstinence rates after surgical<br />

intervention than the general population. The<br />

highest rate of prolonged post-operative<br />

abstinence are assocated with major surgical<br />

proce<strong>du</strong>res, such as lung resection for<br />

carcinoma or coronary artery bypass grafting<br />

(29). In general, it could be considered that<br />

patients who underwent more extensive<br />

surgical proce<strong>du</strong>res were more likely to<br />

remain abstinent from cigarettes for 30 days<br />

after surgery than those who underwent more<br />

minor proce<strong>du</strong>res (30).<br />

Recommendations<br />

A smoker in temporary abstinence can be<br />

defined as a smoker who does not want to<br />

quit and, for different reasons, must refrain<br />

from smoking <strong>du</strong>ring a period of time.<br />

NRT for temporary abstinence can be<br />

recommended in three different cases:<br />

a) in those smokers who are forced to live<br />

in smoke-free enviromments <strong>du</strong>ring a period<br />

of time that is as large as causing them craving<br />

or nicotine withdrawal syndrome (among<br />

these patients we have to consider those who<br />

are travelling frequently in public transports,<br />

those who work in smoke-free worplaces,<br />

those who like or are force to keep smoke-free<br />

enviromment at home and those who visit<br />

smoke-free recreational venues: discos, bars,<br />

restaurants and so on.)<br />

b) in those smokers who are hospitalized<br />

for different reasons and<br />

c) in those smokers who are going to be<br />

operated on (“elective surgery”). In these<br />

cases, temporary abstinence should be<br />

strongly recommended at least 3 weeks before<br />

surgery. Although it would cause more<br />

benefits 2 months before. ■<br />

69 <strong>Nicotine</strong> <strong>replacement</strong> <strong>therapy</strong> … - <strong>Carlos</strong> A. Jiménez-Ruiz


Session 6<br />

European Program<br />

PESCE<br />

71


(†) Jean Daver died the<br />

30th of June 2009. His<br />

involvement in tobacco<br />

issues and in the EU<br />

politic on tobacco<br />

control has been his last<br />

fight after a life<br />

dedicated to public<br />

health priorities.<br />

*This project receives<br />

financial support from<br />

the European Commission<br />

Public Health<br />

Programme 2003-2008<br />

(Grant Agreement 200<br />

5319). The responsibility<br />

of the information<br />

contained in this<br />

document lies with the<br />

authors.<br />

The Commission is not<br />

responsible for any use<br />

that may be made of the<br />

information contained<br />

therein.<br />

Program Pesce<br />

General Practitioners and the economics of smoking cessation in<br />

Europe<br />

Jean Daver (†)<br />

Toulouse, France.<br />

In June 2006, the European Commission<br />

awarded a 60% co-funding to PESCE*, a<br />

European project drawing together 31<br />

partners from 27 countries.<br />

The grant was awarded because of its<br />

multidisciplinary, multicultural and innovative<br />

nature, linking social and economic<br />

considerations. The PESCE project runs from<br />

September 2006 to May 2008 and operated<br />

with a total budget of 658.000 €.<br />

Fifteen associated partners contributed<br />

financially and shared the scientific<br />

responsibility of the project.<br />

Another sixteen collaborating partners<br />

contribute their expert advice and experience<br />

as well as high level experts chosen for their<br />

special knowledge and scientific reputation.<br />

Tabac & Liberté (France), the largest nongovernmental<br />

organisation in Europe<br />

specialising in smoking cessation training of<br />

General Practitioners and health professionals<br />

at a national level, is the initiator and<br />

coordinator of this large-scale project.<br />

The elaboration of the PESCE project<br />

together with the European project partners<br />

is based on four previous EU projects in the<br />

field of general practitioners, health<br />

professionals and smoking cessation which<br />

were finalised between 1998-2006.<br />

Project objective<br />

The general objectives of the project were<br />

to develop evidence based policy<br />

recommendations and practice based<br />

implementation strategies through a large<br />

scale European consultation process, taking<br />

into account national and cultural<br />

specificities.<br />

Promote increased smoking cessation<br />

interventions of General Practitioners (GPs) in<br />

Europe by addressing the socio-economic<br />

environment of their practice.<br />

Highlight the economic benefit from<br />

increased smoking cessation interventions on<br />

the health care budget in Europe.<br />

Motivate decision makers to change the<br />

working environment of GPs through political<br />

measures.<br />

Outcomes<br />

Report on costs and benefits of measures<br />

to increase general practitioner advice giving<br />

with respect to smoking cessation.<br />

Report on factors that facilitate and hinder<br />

use of smoking cessation interventions by GPs,<br />

and of interventions to change GP behaviour.<br />

European consensus on evidence based<br />

policy recommendations and practice based<br />

implementation strategies to improve<br />

smoking cessation interventions of GP’s in<br />

Europe. See Table 1 page 69.<br />

Better integration of prevention in health<br />

care systems in Europe.<br />

72


1. To what extent do GPs in Europe currently give smoking cessation advice?<br />

. Fewer routinely enquire about smoking<br />

. Majority enquire about smoking status<br />

. Types of support and treatment given<br />

status of existing patients, or routinely<br />

of new patients.<br />

vary from country to counrty.<br />

advise all smokers to quit.<br />

2. What factors influence GPs’ engagement in smoking cessation?<br />

GP Smoking Behaviour and Attitudes Patient Characteristics<br />

Structural Barriers<br />

. Smoking GPs give cessation advice less . GPs are more likely to give cessation . GPs more likely to give smoking cessa-<br />

frequently than non-smoking GPs. In a few advice where patient symptoms are seen as tion advice if they have received training.<br />

countries, GPS smoke in front of patients. smoking-related, and with heavier smokers . Many GPs request more training in and<br />

. Some GPs feel that cessation advice is than lighter smokers.<br />

information about smoking cessation<br />

not part of their job, uncomfortable, unre- . GPs do not always intervene with pre- methods and treatments.<br />

warding and ineffective.<br />

gnant smokers and those with young chil- . Lack of time and of reimursement seen<br />

. Concerns about harming the doctordren, even where national guidelines as barriers by some GPs (proportions vary<br />

patient relationship are a deterrent to recommend this.<br />

across countries).<br />

giving cessation advice.<br />

3. What interventions have been implemented to improve GPs’ engagement in smoking cessation?<br />

. 26 intervention studies from 9 countries.<br />

. Studies are of variable, often poor, quality. Many do not examine impact of an intervention on GPs’ routine engagement in smoking cessation<br />

Training and awareness raising (n=18) Financial (n=3)<br />

Data recording and information manage-<br />

. Brief awareness raising & general trai- Macro and micro changes to GP payment ment (n=2).<br />

ning.<br />

systems for engaging in smoking cessation. Improvements in data recording practice<br />

Minimal Intervention Strategy, Stage/Cycle<br />

(may support increased engagement in smo-<br />

of Change, providing information/materials.<br />

king cessation).<br />

. 7 of the studies (3 RCTs, 4 weaker studies)<br />

Other (n=3). Multi-faceted interventions,<br />

examined impact on routine engagement in<br />

participation in cessation research study.<br />

smoking cessation.<br />

73 Program Pesce - Jean Daver<br />

Data recording and information management<br />

(n=2):<br />

. Training and feedback increased the<br />

amount of data recording and giving of cessation<br />

advice (1 large study).<br />

Other (n=3):<br />

. Improvements in self-confidence and<br />

rates of giving cessation advice.<br />

4. How effective areinterventions to improve GPs’ engagement in smoking cessation?<br />

Training and awareness raising interventions (n=18) Financial interventions (n=3):<br />

. Stage of Change training ( 1 long term . Offering “quality payments” for recor-<br />

study) increased frequency and quality of ding smoking status and giving cessation<br />

GP advice and counselling, and improved advice increased frequency of doing both (1<br />

patient outcomes.<br />

large 15-year good quality study).<br />

. Providing a desktop resource (1 short . Making NRT free to lower income<br />

term study) increased GP advice and coun- patients increased frequency of prescribing<br />

selling.<br />

(1 large study).<br />

. Other studies found positive outcomes . Offering small incentives linked to<br />

(weaker quality, differences not always patient outcomes was ineffective (1 small<br />

significant).<br />

pilot study).<br />

Table 1.


Evidence Based Policy<br />

Recommendations<br />

Practice Based<br />

Implementation Strategies<br />

Based on the conclusions of the<br />

international literature search, PESCE Project<br />

partners, researchers, experts and policy<br />

makers from 27 countries have developed 15<br />

evidence based policy recommendations and<br />

practice oriented implementation strategies<br />

to increase engagement of GP’s in smoking<br />

cessation interventions.<br />

The recommendations have been categorized<br />

in 4 areas: Capacity Building, Resources, Policy<br />

Framework and Communication.<br />

Capacity building<br />

1. To increase the professional<br />

competence in smoking cessation<br />

interventions, training in smoking cessation is<br />

needed for GPs at undergra<strong>du</strong>ate and<br />

postgra<strong>du</strong>ate levels as well as continued<br />

professional development (CPD).<br />

Specific communication skills on smoking<br />

cessation should be integrated into GPs’<br />

e<strong>du</strong>cation and training programmes.<br />

74<br />

2. Participation of GPs<br />

in research projects such as<br />

clinical research trials and<br />

observational studies on<br />

smoking cessation should<br />

be promoted.<br />

3. All health professionals<br />

who smoke should<br />

be supported to stop<br />

smoking.<br />

Ressources<br />

4. GPs should be<br />

provided with<br />

comprehensive information<br />

on available evidencebased<br />

cessation services<br />

including type of service, location, referral<br />

proce<strong>du</strong>res, cost and contact detail.<br />

5. External cessation services should<br />

provide regular feedback to GPs on patient<br />

cessation outco.<br />

6. GPs should routinely record and<br />

monitor the smoking status of all their<br />

patients and should record their subsequent<br />

actions in an integrated routine record<br />

system.


7. Simple recording systems on<br />

smoking cessation interventions should be<br />

incorporated into existing information<br />

systems. This should include smoking<br />

status, cessation activity and feedback.<br />

8. Administrative obligations of GPs<br />

should be reviewed in the wider<br />

framework to save time for prevention<br />

activities.<br />

Policy Framework<br />

9. Extra resources for reimbursement<br />

for specified smoking cessation<br />

interventions should be included in the<br />

normal GP payment system;<br />

10. GPs should play a central role in<br />

the formulation of evidence-based clinical<br />

guidelines on smoking cessation.<br />

11. Smoke free policies should be<br />

established and enforced in GPs’ working<br />

environment.<br />

Communication<br />

12. Smoking behaviour among GPs<br />

and other health professionals should be<br />

monitored regularly.<br />

13. To re<strong>du</strong>ce the perceived lack of<br />

acceptance of smoking cessation advice<br />

interventions, the general population<br />

awareness of GPs as a point of contact for<br />

smoking cessation services should be<br />

increased.<br />

14. GPs’ awareness of the importance<br />

of smoking prevention and cessation for<br />

the health of the general population has<br />

to be fostered.<br />

15. GP’s and GP’s associations must<br />

not enter into collaboration of any sort<br />

with the tobacco in<strong>du</strong>stry.<br />

Conclusion<br />

The European Consensus<br />

Project partners have come to the<br />

conclusion that while we can agree on<br />

common objectives and efficient solutions<br />

that will lead to a better integration of<br />

General Practitioners in the overall effort<br />

to re<strong>du</strong>ce tobacco consumption in Europe,<br />

the implementation and timing of<br />

activities must take place on a national<br />

level. General Practitioners’ role and<br />

activities must be integrated into the<br />

cultural environment, the legislative<br />

framework, the different health systems<br />

and according to the available financial<br />

resources of each country.<br />

In the long term, by letting each country<br />

evolve indivi<strong>du</strong>ally towards a common<br />

objective at their own pace, we will<br />

succeed in integrating prevention into our<br />

health care systems to the greatest benefit<br />

of the citizens of Europe. ■<br />

Policy makers, researchers, public health specialists, economists as well as<br />

representatives from GP organisations and health professional associations collaborated<br />

at the development of the evidence based policy recommendations and practice oriented<br />

implementation strategies.<br />

At an expert workshop on 10th December 2007 in Warsaw, the fifteen policy<br />

recommendations mentioned above were elaborated by 33 experts from 18 countries<br />

based on the scientific evidence collected in the project. At a stakeholder conference in<br />

Barcelona on 27-28 March 2008, 96 Stakeholders from 23 countries (including<br />

participants from the United States, Brazil and Uruguay) pooled their knowledge and<br />

experience and suggested a catalogue of measures to support the implementation of the<br />

PESCE policy recommendations.<br />

We would like to take this opportunity to thank all those who contributed with their<br />

knowledge and experience to the successful outcome of the PESCE project, especially<br />

Pierre Fabre Laboratories for its partnership with Tabac & Liberté since 1994.<br />

75 Program Pesce - Jean Daver


Pesce Project Partners<br />

Project Leader :<br />

-Dr Jean Daver, President, Tabac & Liberté, France<br />

Project Coordination :<br />

-Ms. Sibylle Fleitmann, Independent Consultant Tobacco Control,<br />

Germany – Project co-ordinator<br />

-Ms. Antonella Cardone, Consultant on Social and Public Health<br />

Issues, Italy – Financial co-ordination<br />

-Ms. Marie-Hélène Weber, Pierre Fabre European Affairs, France –<br />

Logistics<br />

Associated Project Partners :<br />

-Dr. Tibor Baska, Comenius University Jessenius Faculty of<br />

Medicine, Slovakia<br />

-Dr. Carmen Cabezas Peña , Health Department of the<br />

Autonomous Department of Catalonia, Spain<br />

-Prof. Luke Clancy, The Research Institute For a Tobacco Free<br />

Society (RIFTS), Ireland<br />

-Prof. David Cohen, School of Care Sciences, University of<br />

Glamorgan, Wales<br />

-Dr. Tibor Demjen, Smoking or Health Hungarian Foundation,<br />

Hungary<br />

-Dr. Evangelos Filopoulos, Hellenic Cancer Society, Greece<br />

-Dr. Giovanni Invernizzi, Italian School of General Medicine<br />

(SIMG), Italy<br />

-Dr. Annelies Jacobs, Radboud University Medical Centre, Centre<br />

for Quality of Care Research (WOK), The Netherlands<br />

-Prof. Ulrich John and Dr. Sabina Ulbricht, University of Greifswald,<br />

Germany<br />

-Ms. Martine Stead, Centre for Tobacco Control Research,<br />

University of Stirling & the Open University, Scotland<br />

-Dr. Hans Storm, Danish Cancer Society, Denmark<br />

-Ms. Ann Van den Bruel, Katolieke Universiteit Leuven (KUL),<br />

Belgium<br />

-Prof. Dr. Antonio Vaz Carneiro, Faculty of Medicine, University of<br />

Lisbon, Portugal<br />

-Prof. Witold Zatonski and Ms. Marta Porêbiak , Health Promotion<br />

Foundation, Poland<br />

Collaborating Project Partners :<br />

-Prof. Olaf Aasland, Institute of Health Management and Health<br />

Economics, Norway<br />

-Dr. Andi Aristotelous, Ministry of Health, Cyprus<br />

-Dr. Michael Callens, Mutualité Chrétienne de Belgique, Belgium<br />

-Dr. Janis Caunitis, Health Promotion State Agency, Latvia<br />

-Dr. Jacques Cornuz, Swiss Smoking Cessation Network,<br />

Switzerland<br />

-Dr. Eirik Boe Larsen, European Union of General Practitioners<br />

(UEMO), Belgium<br />

-Dr. George Kotarov, National Centre of Public Health Protection,<br />

Bulgaria<br />

-Dr. Eva Kralikova, Institute of Hygiene and Epidemiology Charles<br />

University, Czech Republic<br />

-Dr. Wilfried Kunstmann, Bundesärztekammer, Germany<br />

-Mr. Francis Grogna, European Network for Smoking Prevention,<br />

Belgiu<br />

-Prof. Florin Mihaltan, Institute of Pneumology "M.Nasta",<br />

Romania<br />

-Dr. Vera-Kerstin Petric, Ministry of Health, Health and Healthy<br />

Lifestyle Promotion Sector, Slovenia<br />

-Ms. Christina Dietscher, Ludwig Boltzmann Institute for Sociology<br />

of Health and Medicine, Austria<br />

-Mr. Patrick Sandström, National Public Health Institute KTL,<br />

Finland<br />

-Prof. Hanne Tonnesen, Bispebjerg University Hospital, WHO-<br />

Collaborating Centre for Evidence Based Health Promotion in<br />

Hospitals and Health Services, Denmark<br />

-Dr. Aurelijus Veryga, Kaunas University of Medicine, Lithuania<br />

Researchers :<br />

-Dr. Joao Costa, Faculty of Medicine, University of Lisbon, Portugal<br />

-Dr. Peter Csepe, Smoking or Health Hungarian Foundation,<br />

Hungary<br />

-Laura Currie, The Research Institute For a Tobacco Free Society<br />

(RIFTS), Ireland<br />

-Ms. Inge Haunstrup-Clemmensen, Danish Cancer Society,<br />

Denmark<br />

-Ms. Helena Koprivnikar, National Institute of Public Health,<br />

Slovenia<br />

-Ms. Sophie Massin, CES-MATISSE, Université Paris 1, Maison des<br />

Sciences Economiques, France<br />

-Dr. Ivo Nagels, Fondation contre le Cancer, Belgium<br />

-Ms. Maria Pilali, Hellenic Cancer Society, Greece<br />

-Dr. Nicolo Seminara, European School of General Medicine<br />

(SEMG), Italy<br />

-Ms. Kathryn Angus, Gayle Tait and Ingrid Holme, Centre for<br />

Tobacco Control Research, University of Stirling & the Open<br />

University, Scotland<br />

-Dr. Fasihul Alam, Dr. Paul Jarvis and Dr. Sam Groves, Health<br />

Economics and Policy Research Unit, University of Glamorgan,<br />

Wales<br />

-Ms. Lotje Van Esch, Radboud University Medical Centre, Centre<br />

for Quality of Care Research (WOK), The Netherlands<br />

-Dr. Dewi Segaar, STIVORO, The Netherlands<br />

Experts :<br />

-Dr. Francisco Camarelles, Spanish Society of Family Medicine,<br />

Spain<br />

-Dr. Dongbo Fu, World Health Organization (WHO), Switzerland<br />

-Prof. Pierre Kopp, Université Paris 1 - Panthéon - Sorbonne,<br />

France<br />

-Ms. Jennifer Percival, Royal College of Nursing, UK<br />

-Dr. Luis Rebelo, Faculty of Medicine, University of Lisbon,<br />

Portugal<br />

-Dr. Annie Sasco, INSERM, France<br />

-Mr. Kriztof Prezwosniak, Cancer Centre Institute, Poland<br />

-Prof. Joy Townsend, London School of Hygiene and Tropical<br />

Medicine, UK<br />

Funding Bodies :<br />

-European Commission, DG SANCO, Public Health Programme,<br />

Luxemburg<br />

-Ministry of Foreign Affaires, France<br />

-Mission Interministérielle de Lutte contre les Drogues et la<br />

Toxicomanie (MILDT), France<br />

-Institut National <strong>du</strong> Cancer (INCa), France<br />

-Cancer Research UK (CRUK), UK<br />

-Pierre Fabre Laboratories, France<br />

76

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