The purpose of this study is to understand how different types of e-cigarettes affect the way smokers use tobacco products. Participants will complete three in-person visits. Prior to the second visit, they will be required not to smoke after midnight on the night before the visit. At this visit, the participant will try two e-cigarette e-liquids or one other tobacco product, called a heated tobacco product. Participants have a 75% chance of being assigned to try the two e-liquids and a 25% chance of being assigned to try the heated tobacco product. They will complete a task where they will choose between the product(s) they sampled, a cigarette, or nothing. Then they will receive one of these products to take home for one week. We are interested in how the product the participants are given changes their tobacco use. After they leave the visit, they are not required to use the product and it is entirely up to them if and how they use it. Participants will complete three study visits, and daily electronic diaries across the two weeks of the study. Participation will last approximately two weeks. Both e-cigarettes and heated tobacco products are likely less harmful than combustible cigarettes, but we are unsure how harmful, or how safe they might be. Side effects from using the e-cigarette/heated tobacco product are generally rare and mild, and may include: nausea, headache, heartburn, irritability, anxiety, headache, cough, or trouble sleeping. There is no direct benefit for participating. Participation will aid researchers to determine how different types of tobacco products affect smoking behavior.
The goal of this research is to understand how different types of e-cigarettes affect tobacco use. Participants will either be assigned to a control group that does not receive an e-cigarette or be assigned to receive one of two different types of e-cigarettes to sample in the lab and at home. We will measure participants' smoking and smoke exposure during the study.
The purpose of this project is to understand how different e-cigarettes influence their likeability and use among current smokers who try using e-cigarettes. Participants will receive an e-cigarette to sample over a three week period. During this time period they will complete daily electronic diaries and weekly lab visits. The results from this information will help us understand how different types of e-cigarettes are likely to influence cigarette and e-cigarette use.