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ClinicalTrials.gov public records Last synced Jun 25, 2026, 10:28 PM EDT

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Showing 1–24 of 787 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Tobacco Dependence
Interventions
Very low nicotine content cigarettes, standard nicotine content cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 70 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Providence, Rhode Island
Completed Phase 1Phase 2 Interventional Results available

Phase I/II Study of Chemoprevention With EGFR and COX-2 Inhibitor

NCT00314262
Conditions
Precancerous Conditions
Interventions
Erlotinib & Celecoxib
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Smoking Cessation
Interventions
Cytisinicline, Placebo, Behavioral support
Drug · Behavioral
Lead sponsor
Achieve Life Sciences
Industry
Eligibility
18 Years and older
Enrollment
792 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
12
States / cities
DeLand, Florida • Fort Myers, Florida • Jacksonville, Florida + 9 more
Conditions
DNA Damage
Interventions
Noni juice, Placebo
Dietary Supplement
Lead sponsor
Tahitian Noni International, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
Rockford, Illinois
Conditions
Tobacco Smoking
Interventions
menthol ban in cigarettes only, total menthol ban
Behavioral
Lead sponsor
Yale University
Other
Eligibility
21 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Tobacco Use Disorder
Interventions
AAT-experiment, AAT-placebo
Behavioral
Lead sponsor
Yale University
Other
Eligibility
13 Years to 18 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Delivering VergeRx at FQHCs

NCT06161675
Conditions
Tobacco Use Cessation
Interventions
QuitAid, SmokefreeTXT, Nicotine Replacement Therapy Patch, Nicotine lozenge
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Paroxetine on Smokers' Cardiovascular Response to Stress - 1

NCT00218439
Conditions
Tobacco Use Disorder
Interventions
Paroxetine, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Smokers, Never Smokers
Interventions
Cigarette
Other
Lead sponsor
Philip Morris Products S.A.
Industry
Eligibility
25 Years to 45 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Neptune City, New Jersey • Newark, New Jersey
Conditions
Nicotine Dependence
Interventions
Bupropion SR, Nicotine Patch, Placebo Patch and Placebo Pill
Drug
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years to 55 Years
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
1
States / cities
Carbondale, Illinois
Conditions
Tobacco Use Disorder
Interventions
varenicline, nicotine patch
Drug
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Buffalo, New York
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Donepezil on Smoking

NCT01250977
Conditions
Smoking
Interventions
Donepezil, Placebo
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Alcoholism, Smoking
Interventions
nicotine replacement patch, mood management
Drug · Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2003
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine in Tobacco Smokers

NCT03651869
Conditions
Smoking, Tobacco, Smoking (Tobacco) Addiction
Interventions
Cigarette 1, Cigarette 2, Patch 1, Patch 2
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Schizophrenia
Interventions
Web-based motivational decision support system, NCI Education
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
3
States / cities
Chicago, Illinois • Worcester, Massachusetts • New Brunswick, New Jersey
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Maintaining Nonsmoking: Older Smokers - 1

NCT00086385
Conditions
Tobacco Use Disorder
Interventions
Nicotine polacrilex, Bupropion
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
50 Years and older
Enrollment
403 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
San Francisco, California
Conditions
Asthma
Interventions
fluticasone/salmeterol in all asthmatics, budesonide/formoterol or fluticasone/salmeterol in all asthmatics
Drug
Lead sponsor
Gelb, Arthur F., M.D.
Individual
Eligibility
10 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2027
U.S. locations
1
States / cities
Lakewood, California
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoker-to-Smoker (S2S) Peer Marketing and Messaging to Disseminate Tobacco Interventions

NCT03224520
Conditions
Smoking Cessation
Interventions
Recommender CTHC, Standard CTHC, Peer Recruitment, Standard Online Recruitment
Behavioral · Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
1,487 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Worcester, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers Results available

Motivating Change in Aging Smokers

NCT05194917
Conditions
Smoking Cessation
Interventions
Older Smoker Motivational Intervention, Control Motivational Message
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
50 Years to 80 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Recruiting Not applicable Interventional Accepts healthy volunteers

Vaping and Smoking Withdrawal Project

NCT05772845
Conditions
Acute Abstinence From Cigarettes vs E-cigarettes (ENDS)
Interventions
Acute (24-hour) abstinence, Ad libitum smoking/vaping
Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
21 Years to 50 Years
Enrollment
370 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Buffalo, New York
Conditions
Tobacco Use Disorder
Interventions
Behavior Therapy
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 79 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2003
U.S. locations
1
States / cities
Minneapolis, Minnesota
Recruiting Not applicable Interventional Accepts healthy volunteers

The Impact of Menthol Flavoring on Switching in Adult Menthol Smokers

NCT05555069
Conditions
Smoking Reduction
Interventions
Menthol-flavored electronic cigarette, Tobacco-flavored electronic cigarette
Other
Lead sponsor
Nikki Nollen, PhD, MA
Other
Eligibility
21 Years and older
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Kansas City, Missouri
Conditions
Vaping, Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 25 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Cigarette Smoker, Current Smoker, Lung Adenocarcinoma, Squamous Cell Lung Carcinoma, Stage IV Non-Small Cell Lung Cancer
Interventions
Best Practice, Biospecimen Collection, Laboratory Biomarker Analysis, Medical Chart Review, Quality-of-Life Assessment, Questionnaire Administration, Smoking Cessation Intervention
Other · Procedure · Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3,584 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Columbus, Ohio