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Ann Med. 2012 Sep;44(6):588-97. doi: 10.3109/07853890.2012.705016. Epub 2012 Aug 6.

Comparisons of high-dose and combination nicotine replacement therapy, varenicline, and bupropion for smoking cessation: a systematic review and multiple treatment meta-analysis.

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  • 1Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada. Edward.mills@uottawa.ca

Erratum in

  • Ann Med. 2012 Sep;44(6):597.

Abstract

AIM:

This review compared the effect of high-dose nicotine replacement therapy (NRT) and combinations of NRT for increasing smoking abstinence rates compared to standard-dose NRT patch, varenicline, and bupropion on smoking abstinence.

METHODS:

Ten electronic databases were searched (up to January 2012) for randomized controlled trials (RCT) of standard-dose (≤ 22 mg) or high-dose nicotine patch therapy (> 22 mg), combination NRT (e.g. nicotine patch + nicotine inhaler), bupropion, and varenicline. Analysis consisted of random-effects pairwise meta-analysis and a Bayesian multiple treatment comparison (MTC).

RESULTS:

We identified 146 RCTs (65 standard-doses of the nicotine patch (≤ 22 mg); 6 high-dose NRT patch (> 22 mg); 5 high versus standard-dose NRT patch; 5 combination NRT versus inert controls; 6 combination versus single NRT patch; 48 bupropion; and 11 varenicline). The MTC found that all therapies offered treatment benefits at most time points over controls. Combination NRT and higher-dose NRT did not demonstrate consistent effects over other interventions. With the exception of varenicline, the benefits of treatments over standard-dose NRT were not retained in the long term.

CONCLUSIONS:

All pharmacologic treatments were significantly more effective than inert controls. Varenicline was the only treatment demonstrating effects over other options. These results should be considered in the development of clinical practice guidelines.

PMID:
22860882
[PubMed - indexed for MEDLINE]
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