CSD190401: A Study to Assess Elements of Abuse Liability for Nicotine-containing Pouch Tobacco Products

Cigarette smokers (SMK) and smokers who also use smokeless tobacco (SST) \[e.g., snus, moist snuff\] will be recruited into the study. An attempt will be made to have approximately one third of the study population made up of SST. Potential subjects may complete a pre-Screening telephone interview and will complete a Screening Visit to assess their eligibility within 45 days prior to check-in and enrollment/randomization. Starting on Day -1, eligible subjects will begin confinement at the clinical site for 6 days. Subjects will be randomized to evaluate one investigational product (IP) in each of five separate Test Sessions, such that each subject will evaluate five IPs, including three strengths of the nicotine pouches, and both a high- and a low-AL comparator. Each Test Session will last for approximately 4 hours during and following IP use and will include collection of both PD measures (subjective and physiological) and PK measures. On Day -1, subjects will participate in an IP acclimation period where they will be instructed on how to use the nicotine pouch IP and the nicotine gum (low-AL comparator IP). At the end of the acclimation period, subjects will have access to their usual brand (UB) cigarettes for ad libitum use until the 12-hour tobacco abstinence begins prior to the Day 1 Test Session.