alexa Rate of nicotine metabolism and smoking cessation outcomes in a community-based sample of treatment-seeking smokers.
Molecular Biology

Molecular Biology

Journal of Cytology & Histology

Author(s): Kaufmann A, Hitsman B, Goelz PM, VeluzWilkins A, Blazekovic S,

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Abstract BACKGROUND: In samples from controlled randomized clinical trials, a smoker's rate of nicotine metabolism, measured by the 3-hydroxycotinine to cotinine ratio (NMR), predicts response to transdermal nicotine. Replication of this relationship in community-based samples of treatment-seeking smokers may help guide the implementation of the NMR for personalized treatment for nicotine dependence. METHODS: Data from a community-based sample of treatment seeking smokers (N=499) who received 8weeks of transdermal nicotine and 4 behavioral counseling sessions were used to evaluate associations between the NMR and smoking cessation. Secondary outcomes included withdrawal and craving, depression and anxiety, side effects, and treatment adherence. RESULTS: The NMR was a significant predictor of abstinence (OR=.56, 95\% CI: 0.33-0.95, p=.03), with faster metabolizers showing lower quit rates than slower metabolizers (24\% vs. 33\%). Faster nicotine metabolizers exhibited significantly higher levels of anxiety symptoms over time during treatment, vs. slower metabolizers (NMR x Time interaction: F[3,357]=3.29, p=.02). NMR was not associated with changes in withdrawal, craving, depression, side effects, and treatment adherence (p's>.05). CONCLUSIONS: In a community-based sample of treatment-seeking smokers, faster nicotine metabolizers were significantly less likely to quit smoking and showed higher rates of anxiety symptoms during a smoking cessation treatment program, vs. slower nicotine metabolizers. These results provide further evidence that transdermal nicotine is less effective for faster nicotine metabolizers and suggest the need to address cessation-induced anxiety symptoms among these smokers to increase the chances for successful smoking cessation. Copyright © 2015 Elsevier Ltd. All rights reserved.
This article was published in Addict Behav and referenced in Journal of Cytology & Histology

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