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Combination Pharmacological Interventions for Smoking Cessation and Post-Cessation Weight Gain: A Meta-Analysis of Randomized Controlled Trials

  • Korean Journal of Occupational Therapy
  • Abbr : Korean J of Occup Ther
  • 2020, 28(4), pp.121-135
  • DOI : 10.14519/kjot.2020.28.4.10
  • Publisher : Korean Society Of Occupational Therapy
  • Research Area : Medicine and Pharmacy > Working Therapeutics
  • Received : May 27, 2020
  • Accepted : July 11, 2020
  • Published : December 30, 2020

Gail Castañeda 1 Jaewon Kang 2 Mi Jung Lee 1 Nancy Schaefer 2 Sergio Romero 2

1Veterans Rural Health Resource Center
2University of Florida

Accredited

ABSTRACT

Objective: Limited evidence exists concerning whether combined pharmacotherapy is more effective thanmonotherapy for increased smoking abstinence and post-cessation weight gain prevention. This researchinvestigated the effect of combined pharmacotherapy on smoking abstinence and post-cessation weight change. Methods: A meta-analytic review of Randomized Controlled Trials (RCTs) published between January 1990 andJuly 2016 was conducted across PubMed, International Pharmaceutical Abstracts, Web of Science, and CochraneLibrary. Aggregate fixed effects were estimated for continuous abstinence and mean post-cessation weightchange. Keyword search terms included: “smoking cessation,” “naltrexone”, “varenicline”, and “bupropion”. Results: Eight RCTs with 2,513 participants were included. Aggregate fixed effect estimates revealed an increasein continuous smoking abstinence (OR = 1.81, p < .001) and mean decrease in post-cessation weight change(-.15 kg, p = .001). Decreased weight change was observed at 6-8 weeks follow-up (-.14 kg, p = .02). Increased mean weight change was observed among varenicline plus nicotine patch abstainers (.21 kg, p = .01),whereas bupropion plus NRT pharmacotherapies showed decreased mean weight change (-.15 kg, p = .01). Conclusion: Combination pharmacotherapy generates increased smoking abstinence and small short-termpost-cessation weight change among abstainers, particularly among bupropion plus NRT when compared againstvarenicline plus nicotine patch.

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