Randomised Controlled Trial Investigating the Efficacy and Safety of an Electronic Nicotine Delivery Device (E-Cigarette) Without Nicotine Cartridges in Smokers
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Sustained 50% reduction in the number of cigarettes smoked per day at week-12 from baseline
研究概览
简要总结
The study's major aim is to investigate the ability of a commercial Electronic Nicotine Delivery Device (E-Cigarette) to induce long-term smoking reduction/abstinence in smokers unwilling to quit. Secondary aims are to investigate changes in withdrawal symptoms and cravings and to examine whether concomitant use of the E-Cigarette and smoking is safe. The study will monitor smoking reduction/abstinence effects, changes in withdrawal symptoms, and adverse events of a currently marketed device in Italy ("Categoria" electronic cigarette - "NO nicotine" cartridges). The primary hypothesis is that the E-Cigarette is a safe device that allows smoking reduction or abstinence in smokers possibly by suppressing withdrawal symptoms and cravings independently from nicotine delivery.
详细描述
The electronic cigarette (E-Cigarette) is an electronic nicotine delivery systems designed for the purpose of nicotine delivery to the respiratory system where nor tobacco nor combustion are necessary for its operation. For these reasons, it is possible that this product may be safer than cigarettes. Marketing claims also include that they can be useful smoking cessation aids. Although E-Cigarette may produce lung delivery of nicotine similar to that of tobacco cigarettes and reproduces the gesture component associated with tobacco smoking, very little is known about the effect of E-Cigarette on the smoking habits of regular tobacco smokers. Therefore, we designed a prospective observational study consisting of 8 office-based visits (a baseline visit and a 2, 4, 6, 8, 10, and 12-weeks and a final visit at 24-weeks) to monitor possible modifications in the smoking habits of a group of well characterized regular smokers experimenting the e-cigarette focusing on long-term smoking reduction/abstinence, changes in withdrawal symptoms/cravings and adverse events. Specifically, 100 smokers will be given "Categoria" electronic cigarette loaded without nicotine ("NO nicotine" cartridges) and followed up for a total of 24 weeks.</
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •healthy smokers unwilling to quit, between 18 and 60 years of age. They should report a cigarette intake of ≥ 15 cig/day for at least 5 years. At screening they must provide a CO level of ≥ 15 ppm and an FTND ≥ 5.
排除标准
- •alcohol and illicit drug use, breastfeeding, or pregnancy. Individuals who report current attempts to quit smoking and previous experience with electronic cigarettes will be also excluded.
结局指标
主要结局
Sustained 50% reduction in the number of cigarettes smoked per day at week-12 from baseline
时间窗: week-12
50% reduction in the number of cigarettes smoked per day documented at each study visit (week-2, -4, -6, -8, -10, and -12)
Sustained smoking abstinence at week-12
时间窗: week 12
Sustained smoking abstinence at week-12, defined as complete abstinence from tobacco smoking (not even a puff) for the 14 days period prior to week-12 study visit; exhaled CO levels will be measured to objectively verify smoking status.
次要结局
- Sustained 80% reduction in the number of cigarettes smoked per day at week-12 from baseline(week-12)
- Sustained smoking abstinence at week-24(week 24)
- Sustained 50% reduction in the number of cigarettes smoked per day at week-24 from baseline(week-24)
- Sustained 80% reduction in the number of cigarettes smoked per day at week-24 from baseline(week-24)
- Withdrawal suppression (by MNWS)(24 weeks)
- Cravings reduction (by VAS)(24 wks)
- Reported adverse events rate from baseline(24 wks)
研究者
Riccardo Polosa
Professor of Internal Medicine
Universita degli Studi di Catania