允许灵活戒烟日期的伐尼克兰戒烟的随机安慰剂-对照试验
2011/12/26
摘要
前言:当前戒烟指南推荐在开始药物治疗之前设定戒烟日期。然而,采用灵活的戒烟日期的戒烟方案对于一些吸烟者来说更易于接受。本试验比较每日2次的伐伦尼克林(b.i.d.)与安慰剂的戒烟效果,其中采用灵活的戒烟日期。
方法:在这项双盲、随机、安慰剂-对照的国际研究中,吸烟者每天吸烟≥10支,年龄18~75岁,有吸烟动力。吸烟者随机(3:1)分为伐尼克兰(1 mg b.i.d.)和安慰剂治疗12周。受试者随访至24周。指导这些参与者在开始治疗后的8~35天戒断。主要终点为9~12周时通过检测一氧化碳证实持续戒断,次要终点为9~24周时的持续戒断。
结果:总体来说,493名受试者接受伐尼克兰戒烟,166名使用安慰剂。治疗结束时,伐尼克兰组戒断率高于安慰剂组(9~12周:53.1% vs. 19.3%;OR:5.9; 95% CI, 3.7-9.4; P< .0001)。在整个24周的随访中,伐尼克兰组戒断率同样高于安慰剂组(9~24周:34.7% vs. 12.7%; OR 4.4; 95% CI, 2.6-7.5; p <0.0001)。伐尼克兰组1.2%受试者出现严重不良反应(无精神类反应),安慰剂组为0.6%受试者。与安慰剂组相比,伐伦尼克林组受试者抑郁相关的不良事件更少(分别为2.3% vs. 6.7%)。
结论:采用灵活戒烟日期的伐尼克兰(1 mg b.i.d.)进行戒烟,与过去固定戒烟日期的戒烟研究相比,具有相似的戒烟疗效和安全性。
(林江涛 审校)
Nicotine Tob Res. 2011 Nov 11. [Epub ahead of print]
A Randomized Placebo-Controlled Trial of Varenicline for Smoking Cessation Allowing Flexible Quit Dates.
Rennard S, Hughes J, Cinciripini PM, Kralikova E, Raupach T, Arteaga C, Aubin LB, Russ C; for the Flexible Quit Date Study Group.
Source
Division of Pulmonary, Critical Care, Sleep & Allergy, 985910 University of Nebraska Medical Center, Omaha, NE 68198-5910, USA. srennard@unmc.edu.
Abstract
INTRODUCTION: Current smoking cessation guidelines recommend setting a quit date prior to starting pharmacotherapy. However, providing flexibility in the date of quitting may be more acceptable to some smokers. The objective of this study was to compare varenicline 1 mg twice daily (b.i.d.) with placebo in subjects using a flexible quit date paradigm after starting medication.
METHODS: In this double-blind, randomized, placebo-controlled international study, smokers of ≥10 cigarettes/day, aged 18-75 years, and who were motivated to quit were randomized (3:1) to receive varenicline 1 mg b.i.d. or placebo for 12 weeks. Subjects were followed up through Week 24. Subjects were instructed to quit between Days 8 and 35 after starting medication. The primary endpoint was carbon monoxide-confirmed continuous abstinence during Weeks 9-12, and a key secondary endpoint was continuous abstinence during Weeks 9-24.
RESULTS: Overall, 493 subjects were randomized to varenicline and 166 to placebo. Continuous abstinence was higher for varenicline than for placebo subjects at the end of treatment (Weeks 9-12: 53.1% vs. 19.3%; odds ratio [OR] 5.9; 95% CI, 3.7-9.4; p < .0001) and through 24 weeks follow-up (Weeks 9-24: 34.7% vs. 12.7%; OR 4.4; 95% CI, 2.6-7.5; p < .0001). Serious adverse events occurred in 1.2% varenicline (none were psychiatric) and 0.6% placebo subjects. Fewer varenicline than placebo subjects reported depression-related adverse events (2.3% vs. 6.7%, respectively).
CONCLUSIONS: Varenicline 1 mg b.i.d. using a flexible quit date paradigm had similar efficacy and safety compared with previous fixed quit date studies
Nicotine Tob Res. 2011 Nov 11. [Epub ahead of print]
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尼古丁替代治疗用于减少吸烟和暂时戒断:访谈研究
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有戒烟意愿人群中金雀花碱和尼古丁替代治疗的非劣效性试验的研究方案