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ClinicalTrials.gov public records Last synced May 22, 2026, 1:17 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 1,759 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tobacco Clear all
Completed Phase 2 Interventional
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Tobacco Use Disorder
Behavioral
Lead sponsor
Inflexxion, Inc.
Industry
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
7
States / cities
La Puente, California • Athol, Massachusetts • Ann Arbor, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated May 12, 2015 · Synced May 22, 2026, 1:17 AM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Positron Emission Tomography
Interventions
positron emission tomography scan
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
San Diego, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2019 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
2
States / cities
Lexington, Kentucky • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced May 22, 2026, 1:17 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
E-Cig Use
Interventions
Viewing e-cigarette ads
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 26 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
IQOS
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Obesity, Diabetes, Hypertension, Asthma/COPD With Tobacco Dependence
Interventions
CHW Goal Support
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
Not listed
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Use, Tobacco Smoking, Cigarette Smoking, Smokeless Tobacco Cessation
Interventions
Electronic Cigarette, Oral Nicotine Pouch
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced May 22, 2026, 1:17 AM EDT
Not listed Phase 2 Interventional
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
computer-assisted smoking cessation intervention, cancer prevention, educational intervention, survey administration
Behavioral · Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Copd, Smoking Cessation, Nicotine Dependence, Tobacco Use, Cigarette Smoking
Interventions
Unified Protocol adapted for smoking cessation
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 16, 2021 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Preparation Varenicline and Standard Duration Varenicline, Preparation Varenicline and Extended Duration Varenicline, Standard Duration Varenicline, Extended Duration Varenicline, Preparation Combination NRT and Standard Duration Combination NRT, Preparation Combination NRT and Extended Duration Combination NRT, Standard Duration Combination NRT, Extended Duration Combination NRT, Intensive Counseling, Minimal Counseling
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
529 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cardiovascular Risk Factor, Nicotine Dependence
Interventions
Electronic Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Naltrexone
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases
Interventions
Motivational Interviewing Telephone Counseling, Educational Intervention
Behavioral
Lead sponsor
Brown University
Other
Eligibility
16 Years and older · Female only
Enrollment
757 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion, Placebo, weight concerns intervention, smoking cessation intervention
Drug · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
349 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 20, 2016 · Synced May 22, 2026, 1:17 AM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Smoking Cessation
Interventions
Phone-based Tobacco Treatment, Nicotine Replacement, and Stepped Care Intervention, E-Referral to the Tobacco Quitline
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
50 Years to 80 Years
Enrollment
1,188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Resistance training, Health and Wellness
Behavioral
Lead sponsor
Teachers College, Columbia University
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 19, 2020 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cigarette Smoking, Tobacco Smoking
Interventions
Unfiltered Cigarettes, Filtered Cigarettes
Other
Lead sponsor
San Diego State University
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Marcos, California
Source: ClinicalTrials.gov public record
Updated Oct 21, 2020 · Synced May 22, 2026, 1:17 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Use
Interventions
Tobacco and non-tobacco e-cigarettes, Tobacco only e-cigarettes
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced May 22, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Smoking Cessation, Yoga, Wellness
Behavioral · Other
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
255 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 18, 2021 · Synced May 22, 2026, 1:17 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cigarette Smoking
Interventions
NIDA Standard Research E-cigarette (SREC)
Device
Lead sponsor
University of Southern California
Other
Eligibility
22 Years to 55 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Smoking Among Youth
Interventions
Social-influences
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
7 Years to 9 Years
Enrollment
8,388 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1984 – 1999
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 28, 2012 · Synced May 22, 2026, 1:17 AM EDT
Completed Early Phase 1 Interventional
View directory record Official record
Conditions
Cigarette Smoking, Alcohol Use Disorders
Interventions
Varenicline, Prazosin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced May 22, 2026, 1:17 AM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Nicotine Dependence, Bipolar Disorder
Interventions
Counseling/Healthy Lifestyle, Counseling/Managing Mood
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced May 22, 2026, 1:17 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Tolcapone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced May 22, 2026, 1:17 AM EDT