Testing the Experimental Tobacco Marketplace: Examination and Comparison of Different Methods
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 87
- 试验地点
- 2
- 主要终点
- Cigarette demand
研究概览
简要总结
This study will experimentally assess the comparability of in-lab and remote procedures with hypothetical and real ETM purchase outcomes.
详细描述
In a between-group within-subject repeated measures design, participants will be randomly assigned to one of two procedures (in-lab or remote; between-group) and complete two conditions (real and hypothetical; within-subject), which include six trials assessing increasing cigarette prices.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 21 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Provide informed consent
- •Be at least 21 years of age or older
- •Stable tobacco use patterns for at least three months
- •Smoke at least 5 cigarettes daily
- •Use other tobacco products less than weekly
- •Have access to a computer and internet
排除标准
- •report uncontrolled physical or mental health conditions (e.g., uncontrolled diabetes, high blood pressure, major depressive disorder, etc.),
- •use of smoking cessation medications (e.g., nicotine replacement, bupropion, varenicline) in the past 30 days,
- •report concrete, immediate plans to alter/quit using their usual tobacco products in the next 30 days,
- •be pregnant or lactating
研究组 & 干预措施
Remote procedures
Exclusive cigarette smokers will be recruited and will experience all study procedures remotely.
干预措施: Reat ETM (Drug)
Remote procedures
Exclusive cigarette smokers will be recruited and will experience all study procedures remotely.
干预措施: Hypothetical ETM (Drug)
In-lab procedures
Exclusive cigarette smokers will be recruited and will experience all study procedures in the laboratory.
干预措施: Reat ETM (Drug)
In-lab procedures
Exclusive cigarette smokers will be recruited and will experience all study procedures in the laboratory.
干预措施: Hypothetical ETM (Drug)
结局指标
主要结局
Cigarette demand
时间窗: 1 day
Participants will complete purchasing trials in an Experimental Tobacco Marketplace (ETM) with cigarettes increasing in price. Other product prices in the ETM will remain constant. To obtain dependent measures of demand, participants' purchasing of the price-manipulated commodity in the ETM task will be fit to a modified exponential equation to quantify the relationship between the price of each commodity and purchasing: Q=Q0\*10k(exp(-αQ0C)-1) where Q is purchasing of the commodity, C is the price, Q0 is the derived initial purchasing without cost constraints (demand intensity), k is the span of the function in logarithmic units, and α is the demand elasticity.
Nicotine/tobacco products substitution
时间窗: 1 day
Participants will complete purchasing trials in an Experimental Tobacco Marketplace (ETM) with cigarettes increasing in price. Other product prices in the ETM will remain constant. To obtain estimates of substitution of price-constant products in the different ETM conditions, the investigators will use ordinary least squares regression to model the relationship of the price-manipulated product to predict total quantity purchased of the price-constant product.
次要结局
未报告次要终点
研究者
Jeffrey Stein
Associate Professor
Virginia Polytechnic Institute and State University