CSD201002: Study to Assess Nicotine Uptake From P10 Nicotine Pouches

This study is designed to evaluate plasma nicotine PK parameters following the use of nicotine pouches (hereinafter referred to as Velo Pouch IPs) in cigarette smokers and smokers who also use smokeless tobacco (SST) \[e.g., snus, moist snuff\]. At least one-third of the study population will include smokers who also use ST. Potential subjects may complete a pre-screening telephone interview. They will complete a Screening Visit to assess their eligibility within 45 days prior to enrollment, randomization and confinement. Following the Screening Visit, eligible subjects will be scheduled for a Day 1 check-in visit to complete procedures to confirm eligibility. Eligible subjects will be enrolled and begin confinement at the clinical site for 8 days and 7 nights. Subjects will participate in separate Test Sessions for plasma nicotine PK assessment, one for each IP. The IP for each Test Session will be determined based on a randomly assigned IP presentation schedule (14 product sequence) generated using a Williams Design. Each Test Session will last for approximately 4 hours following the start of the IP use, and will include collection of plasma samples for PK assessments prior to, during and following IP use and completion of the Overall Product Liking questionnaire. Subjects will use their randomized study IP one day before the respective test session to familiarize themselves with the IP.