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ClinicalTrials.gov public records Last synced Oct 9, 2026, 5:05 AM EDT

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Showing 1–3 of 3 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Unventilated Cigarette Filter Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Telehealth-Filter Ventilation ( COMET2P1 )

NCT04969783
View directory record Official record
Conditions
Tobacco Use
Interventions
Ventilated Cigarette Filter, Unventilated Cigarette Filter
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
Minneapolis, Minnesota • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Oct 9, 2026, 5:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

COMET Study 1: Filter Ventilated Cigarette Substitution in the ETM

NCT03306173
View directory record Official record
Conditions
Substance-Related Disorders
Interventions
Commercially available cigarette
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years to 65 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Oct 9, 2026, 5:05 AM EDT
Completed Phase 3 Interventional

COMET2 Project 1 Filter Ventilation Study

NCT03637972
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
Ventilated cigarettes only, Unventilated cigarettes only, Access to Experimental Marketplace: Ventilated cigarettes + alternative nicotine delivery systems, Access to Experimental Marketplace: Unventilated cigarettes + ANDS
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
2
States / cities
Minneapolis, Minnesota • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 29, 2022 · Synced Oct 9, 2026, 5:05 AM EDT