Varenicline and evaluated outcomes in smoking cessation programmes
1Universitá degli Studi di Milano, Dipartimento di Scienze della Salute, Pneumologia Riabilitativa, Fondazione Salvatore Maugeri, Istituto Scientifico di Milano, IRCCS, Milano, Italy. pierachille.santus@unimi.it
Summary
Varenicline is an effective smoking cessation aid, but studies often overlook objective lung function improvements. Future research should include lung function measures to better assess treatment benefits for smokers.
Area of Science:
- Pharmacology
- Respiratory Medicine
- Public Health
Background:
- Smoking causes significant morbidity and mortality, being the leading preventable cause of premature death globally.
- Cigarette smoking is the primary cause of chronic obstructive pulmonary disease (COPD), and cessation is key to halting its progression.
- Varenicline is a recommended first-line aid for smoking cessation, supported by clinical trials demonstrating its efficacy and safety.
Purpose of the Study:
- To review recent clinical pharmacological trials on varenicline for smoking cessation.
- To analyze the outcomes and endpoints utilized in these varenicline efficacy studies.
- To highlight the lack of lung function evaluation as an objective measure of treatment success.
Main Methods:
- Systematic review of clinical pharmacological trials on varenicline for smoking cessation.
- Databases searched include MedLine, Cochrane database, and Embase.
- Focus on primary and secondary endpoints, particularly cigarette abstinence rates and lung function.
Main Results:
- Most trials use 9-12 week cigarette abstinence as the primary endpoint.
- Lung function, specifically spirometric changes, was only considered as a secondary endpoint in one study.
- No study has comprehensively evaluated lung function as a primary or secondary outcome measure.
Conclusions:
- Varenicline is an effective and well-tolerated smoking cessation therapy.
- Current research primarily focuses on abstinence rates, neglecting objective measures like lung function.
- Incorporating lung function assessments could provide a more complete understanding of varenicline's benefits, correlating with subjective improvements.
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