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  • Title: A double-blind trial of a nicotine inhaler for smoking cessation.
    Author: Tønnesen P, Nørregaard J, Mikkelsen K, Jørgensen S, Nilsson F.
    Journal: JAMA; 1993 Mar 10; 269(10):1268-71. PubMed ID: 8437304.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of a new nicotine inhaler system for smoking cessation. DESIGN: A 1-year, randomized, double-blind, placebo-controlled study. SETTING: Medical outpatient clinic with physicians experienced in smoking cessation assistance. SUBJECTS: A total of 286 volunteers who smoked at least 10 cigarettes daily recruited through a local newspaper. INTERVENTION: Subjects were randomly allocated to nicotine inhalers (n = 145) or placebo (n = 141) to be used for 3 months followed by tapering for 3 months in the context of minimal levels of advice and support. MAIN OUTCOME MEASURE: Continuous smoking abstinence at weeks 6, 12, 24, and 52, verified by measurements of carbon monoxide in expired air. RESULTS: Continuous smoking abstinence was significantly higher for the active nicotine inhaler group compared with the placebo inhaler group. The respective success rates were 28% and 12% after 6 weeks, 21% and 9% after 12 weeks, 17% and 8% after 6 months, and 15% and 5% after 1 year (P = .02 to .001). The mean nicotine substitution based on cotinine determinations after 2 weeks was 43% (SD, 45%) of smoking levels. The treatment was well tolerated, and no serious adverse events were reported. CONCLUSIONS: In this setting the nicotine inhaler appeared safe to use and increased success rates of smoking cessation attempts.
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