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Updated: Aug 6, 2026
08:47
Spectral Confocal Imaging of Fluorescently tagged Nicotinic Receptors in Knock-in Mice with Chronic Nicotine Administration
Published on: February 10, 2012
Nicotine replacement therapy for long-term smoking cessation: a meta-analysis
Jean-François Etter1, John A Stapleton
1Institute of Social and Preventive Medicine, University of Geneva, Geneva, Switzerland. Jean-Francois.Etter@imsp.unige.ch
Tobacco Control
|August 4, 2006
Summary
A single course of nicotine replacement therapy (NRT) shows a lasting effect on smoking cessation, but relapse diminishes its long-term benefit. Repeated treatment may be necessary for managing tobacco dependence as a chronic condition.
Area of Science:
- Addiction Medicine
- Public Health
- Pharmacology
Background:
- Nicotine replacement therapy (NRT) is widely used to aid smoking cessation.
- Long-term efficacy data beyond one year is crucial for understanding the sustained impact of NRT.
Purpose of the Study:
- To evaluate the long-term effectiveness of a single treatment episode of NRT on smoking cessation.
- To determine if the benefits of NRT persist over multiple years post-treatment.
Main Methods:
- A meta-analysis of 12 randomized controlled trials of NRT was conducted.
- Trials included participants with follow-up periods ranging from 2 to 8 years, with initial 12-month follow-ups.
- Data from 2408 active NRT participants and 2384 placebo participants were analyzed.
Main Results:
- The odds ratio favoring NRT at long-term follow-up was 1.99 (95% CI 1.50 to 2.64).
- Relapse rates between 12 months and final follow-up were 30%, with no significant difference between NRT and placebo groups.
- The overall efficacy of NRT decreased from 10.7% at one year to 7.2% at an average of 4.3 years due to relapse.
Conclusions:
- The relative efficacy of NRT remains constant, but initial relapse significantly reduces the number of long-term ex-smokers.
- Follow-up periods of 6-12 months overestimate NRT's lifetime benefit by approximately 30%.
- Tobacco dependence should be managed as a chronic condition, potentially requiring repeated NRT treatment episodes.
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