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Do charcoal filters make cigarettes safer? new study investigates

NCT ID NCT07348679

Recruiting now Knowledge-focused Sponsor: Rutgers, The State University of New Jersey Source: ClinicalTrials.gov ↗

First seen Jan 17, 2026 · Last updated Apr 24, 2026 · Updated 9 times

Summary

This study looks at whether charcoal-filtered cigarettes change how people smoke and their exposure to harmful chemicals. About 252 adult smokers who smoke at least 5 cigarettes daily will be randomly assigned to use either charcoal-filtered or regular cigarettes for 4 weeks. Researchers will measure beliefs about risk, smoking habits, and levels of toxins in breath and urine. The goal is to understand if charcoal filters affect perceptions or reduce harm, not to treat or cure any disease.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Institute for Nicotine and Tobacco Studies

    RECRUITING

    New Brunswick, New Jersey, 08901, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

Conditions

Explore the condition pages connected to this study.

SMOKING, CIGARETTE