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- Title
Effects of Nicotine Patch vs Varenicline vs Combination Nicotine Replacement Therapy on Smoking Cessation at 26 Weeks: A Randomized Clinical Trial.
- Authors
Baker, Timothy B.; Piper, Megan E.; Stein, James H.; Smith, Stevens S.; Bolt, Daniel M.; Fraser, David L.; Fiore, Michael C.
- Abstract
<bold>Importance: </bold>Smoking cessation medications are routinely used in health care; it is vital to identify medications that most effectively treat this leading cause of preventable mortality.<bold>Objective: </bold>To compare the efficacies of varenicline, combination nicotine replacement therapy (C-NRT), and the nicotine patch for 26-week quit rates.<bold>Design, Setting, and Participants: </bold>Three-group randomized intention-to-treat clinical trial occurring from May 2012 to November 2015 among smokers recruited in the Madison, Wisconsin, and Milwaukee, Wisconsin, communities; 65.5% of smokers offered the study (2687/4102) refused participation prior to randomization.<bold>Interventions: </bold>Participants were randomized to one of three 12-week open-label smoking cessation pharmacotherapy groups: (1) nicotine patch only (n = 241); (2) varenicline only (including 1 prequit week; n = 424); and (3) C-NRT (nicotine patch + nicotine lozenge; n = 421). Six counseling sessions were offered.<bold>Main Outcomes and Measures: </bold>The primary outcome was carbon monoxide-confirmed self-reported 7-day point-prevalence abstinence at 26 weeks. Secondary outcomes were carbon monoxide-confirmed self-reported initial abstinence, prolonged abstinence at 26 weeks, and point-prevalence abstinence at weeks 4, 12, and 52.<bold>Results: </bold>Among 1086 smokers randomized (52% women; 67% white; mean age, 48 years; mean of 17 cigarettes smoked per day), 917 (84%) provided 12-month follow-up data. Treatments did not differ on any abstinence outcome measure at 26 or 52 weeks, including point-prevalence abstinence at 26 weeks (nicotine patch, 22.8% [55/241]; varenicline, 23.6% [100/424]; and C-NRT, 26.8% [113/421]) or at 52 weeks (nicotine patch, 20.8% [50/241]; varenicline, 19.1% [81/424]; and C-NRT, 20.2% [85/421]). At 26 weeks, the risk differences for abstinence were, for patch vs varenicline, -0.76% (95% CI, -7.4% to 5.9%); for patch vs C-NRT, -4.0% (95% CI, -10.8% to 2.8%); and for varenicline vs C-NRT, -3.3% (95% CI, -9.1% to 2.6%). All medications were well tolerated, but varenicline produced more frequent adverse events than did the nicotine patch for vivid dreams, insomnia, nausea, constipation, sleepiness, and indigestion.<bold>Conclusions and Relevance: </bold>Among adults motivated to quit smoking, 12 weeks of open-label treatment with nicotine patch, varenicline, or C-NRT produced no significant differences in biochemically confirmed rates of smoking abstinence at 26 weeks. The results raise questions about the relative effectiveness of intense smoking pharmacotherapies.<bold>Trial Registration: </bold>clinicaltrials.gov Identifier: NCT01553084.
- Subjects
TREATMENT of drug withdrawal symptoms; CARBON monoxide; CLINICAL trials; COMPARATIVE studies; COUNSELING; DRUGS; RESEARCH methodology; MEDICAL cooperation; NICOTINE; HEALTH outcome assessment; PATIENT compliance; RESEARCH; RESEARCH funding; SMOKING; SMOKING cessation; TIME; EVALUATION research; RANDOMIZED controlled trials; NICOTINIC agonists; EQUIPMENT &; supplies
- Publication
JAMA: Journal of the American Medical Association, 2016, Vol 315, Issue 4, p371
- ISSN
0098-7484
- Publication type
journal article
- DOI
10.1001/jama.2015.19284