About this trial
The overall purpose of this study is to determine the effects of using charcoal-filtered cigarettes on product perceptions, smoking behaviors, and biomarkers of exposure to tobacco-related toxicants. The main questions it aims to answer are:
Do perceptions of cigarettes differ by their filter? Do people smoke charcoal-filtered cigarettes differently than cigarettes with conventional filters, and does this change their exposure to cigarette harms?
Study participants will complete a 5-week laboratory-based, open-label, parallel-design randomized trial. After a baseline period of smoking their preferred brand, participants will smoke charcoal-filtered or non-charcoal-filtered cigarettes for 4 weeks while completing weekly sessions to assess primary outcomes. During weekly sessions, they will smoke two cigarettes in our laboratory, provide urine and carbon monoxide samples, and complete questionnaires.
Eligibility criteria
Qualifiers
Male and female smokers who are at least 21 years of age and self-report smoking at least 5 cigarettes per day for at least the past 6 months.
Smokers of primarily non-menthol cigarettes of brands other than Natural American Spirit.
Not currently undergoing smoking cessation treatment or trying to quit.
Able to communicate fluently in English (speaking, writing, and reading).
Disqualifiers
Use of menthol or Natural American Spirit cigarettes as preferred/regular brand (defined as using >20% of the time).
Enrollment or plans to enroll in a smoking cessation program in the next month.
Provide an initial Carbon Monoxide (CO) reading < 5 parts per million (ppm).
History of substance abuse (other than nicotine) in the past 12 months and/or currently receiving medical treatment for substance abuse.
Trial design
Treatments tested in this trial
- Charcoal filtered cigarettes with marketing
- Charcoal filtered cigarette without marketing
- Non-charcoal filtered cigarettes
Treatment groups
Sponsors and collaborators
Rutgers, The State University of New Jersey
Lead sponsor
National Cancer Institute (NCI)
Collaborator