RecruitingNot ApplicableNCT07348679

Cigarette Filter Study

A Randomized Trial of Charcoal-filtered Cigarettes on Product Perceptions, Smoking Behaviors, and Toxicant Exposure

Sponsor

Rutgers, The State University of New Jersey

Enrollment

252 participants

Start Date

Apr 27, 2026

Study Type

INTERVENTIONAL

Conditions

Smoking, Cigarette

Summary

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

Min Age: 21 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a behavioral approach called Charcoal filtered cigarette without marketing, a behavioral approach called Charcoal filtered cigarettes with marketing, and others for people with smoking, cigarette. The study is currently recruiting participants at 1 location.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

BEHAVIORALCharcoal filtered cigarettes with marketing

After completing a 7-day baseline period of smoking their own preferred brand, participants randomized to the charcoal filtered cigarette with marketing condition will use Natural American Spirit Sky cigarettes for the next 28 days

BEHAVIORALCharcoal filtered cigarette without marketing

After completing a 7-day baseline period of smoking their own preferred brand, participants randomized to the charcoal filtered cigarette without marketing condition will use Tareyton cigarettes for the next 28 days

BEHAVIORALNon-charcoal filtered cigarettes

After completing a 7-day baseline period of smoking their own preferred brand, participants randomized to the non-charcoal filtered cigarette condition will use Natural American Spirit Yellow cigarettes for the next 28 days