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Showing 1–24 of 970 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tobacco Use Disorder Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Use of Nicotine Pouches Among Daily Smokers

NCT06043362
View directory record Official record
Conditions
Tobacco Dependence
Interventions
0 mg nicotine pouch, 3 mg nicotine pouch, 6 mg nicotine pouch, Smooth nicotine pouch, Wintergreen nicotine pouch
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 70 Years
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Hershey, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Internet Stop Smoking Intervention to Usual Care on Smoking Cessation at 6 Months

NCT01639079
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Dependence
Interventions
Internet Smoking Cessation Web Site
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 90 Years
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional

Evaluating a Web-Based Cardiovascular Disease Risk Factor Reduction Program Among American Indians

NCT00608387
View directory record Official record
Conditions
Cardiovascular Diseases, Diabetes Mellitus, Type 2, Hypertension, Obesity, Tobacco Use Cessation
Interventions
Chronic disease management Web-based software
Behavioral
Lead sponsor
Black Hills Center for American Indian Health
Other
Eligibility
18 Years to 75 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Rapid City, South Dakota
Source: ClinicalTrials.gov public record
Updated Jun 3, 2014 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Tobacco, Alcohol, Prescription Medication and Other Substances Tool

NCT02110693
View directory record Official record
Conditions
Substance Use Disorder
Interventions
Interviewer and tablet administration of the TAPS Tool
Other
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
2,057 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
4
States / cities
Baltimore, Maryland • New York, New York • Kannapolis, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2018 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 4 Interventional

Smoking Study With Behavioral Therapy for Hypertensive Patients

NCT00879177
View directory record Official record
Conditions
Cigarette Smoking, Hypertension
Interventions
Varenicline, behavioral therapy
Drug · Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 9, 2017 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Results available

Enhancing a High School Based Smoking Cessation Program

NCT01145001
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Cognitive Behavioural Therapy, Contingency Management, Nicotine Transdermal Patch
Behavioral · Drug
Lead sponsor
Yale University
Other
Eligibility
14 Years to 19 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Jul 20, 2026, 6:41 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Computer Game, Qualitative, and MEG/EEG Assessment of Serotonergic Psychedelics

NCT06624137
View directory record Official record
Conditions
OCD, Major Depressive Disorder (MDD), Alcohol Use Disorder (AUD), Healthy Volunteer, Migraine, PTSD, PTSD - Post Traumatic Stress Disorder, Addiction, Tobacco Use Disorder, Obsessive Compulsive Disorder (OCD), Opioid Use Disorder
Interventions
Serotonergic Psychedelic, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Hamden, Connecticut • West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 4 Interventional Results available

Identifying Optimal Smoking Cessation Intervention Components (Cessation)

NCT01116986
View directory record Official record
Conditions
Smoking, Smoking Cessation, Nicotine Dependence
Interventions
Counseling before quit attempt, Minimal In-person counseling during quit attempt, Intensive in-person counseling during the quit attempt, Minimal phone counseling during the quit attempt, Intensive phone counseling during the quit attempt, Long Term Nicotine Patch+ Nicotine Gum During Quit Attempt, Short Term Nicotine Patch + Nicotine Gum during the quit attempt, Pre-Quit Nicotine Gum, Pre-Quit Nicotine Patch, Pre-Quit Nicotine Patch + Pre-Quit Nicotine Gum
Behavioral · Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 99 Years
Enrollment
637 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 10, 2015 · Synced Jul 20, 2026, 6:41 PM EDT
Withdrawn Not applicable Interventional

Korean Youth Smoking Cessation Study

NCT02021175
View directory record Official record
Conditions
Smoking
Interventions
Tailored CBME Therapy via Technology, Standard of Care
Behavioral · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
14 Years to 19 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2020 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GABA (Gamma Amino Butyric Acid) Medication for Tobacco

NCT00644137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
pregabalin, cigarettes
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional

Testing the Effect of ENDS Flavors on Neurotransmission

NCT05836051
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Flavor
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Results available

Integrated Treatment for Smoking Cessation & Anxiety in People With HIV

NCT01393301
View directory record Official record
Conditions
Nicotine Dependence, Symptoms of Anxiety, HIV
Interventions
Integrated cognitive-behavioral therapy for smoking cessation and anxiety, Control
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional

Project 2: Strategies for Reducing Nicotine Content in Cigarettes

NCT02139930
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Smoking
Interventions
Normal Nicotine Control Group, Immediate Nicotine Reduction Group, Gradual Nicotine Reduction Group
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
1,250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
10
States / cities
Phoenix, Arizona • San Francisco, California • Tampa, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional

Effectiveness of an Integrated Treatment to Address Smoking Cessation and Anxiety/ Depression in People Living With HIV

NCT03904186
View directory record Official record
Conditions
Human Immunodeficiency Virus, Smoking Cessation, Smoking, Cigarette, Smoking, Anxiety, Depression, Nicotine Dependence
Interventions
QUIT, Time-Matched Control (TM)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 79 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 4 Interventional

N-Acetylcysteine for Smoking Cessation in Tobacco and Cannabis Co-Use

NCT04627922
View directory record Official record
Conditions
Cannabis Use, Tobacco Use Disorder, Drug Use Disorder
Interventions
N-Acetyl cysteine, Placebo comparator, Cognitive behavioral therapy (CBT)
Drug · Other · Behavioral
Lead sponsor
Ellen Herbst
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jul 20, 2026, 6:41 PM EDT
Recruiting Phase 2 Interventional

Breathe Easier With Tadalafil Therapy for Dyspnea in COPD-PH

NCT05937854
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Pulmonary Hypertension, Dyspnea
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years to 89 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
5
States / cities
Aurora, Colorado • Decatur, Georgia • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Results available

Trial of Integrated Smoking Cessation, Exercise and Weight Management in Serious Mental Illness: TRIUMPH

NCT02424188
View directory record Official record
Conditions
Mental Illness
Interventions
TRIIUMPH Intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

The Study of AZD8529 for Smoking Cessation in Female Smokers

NCT02401022
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
AZD8529
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 75 Years · Female only
Enrollment
214 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
9
States / cities
Encino, California • La Jolla, California • Los Alamitos, California + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2017 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Low Dose Aspirin Inhibition of COX-2 Derived PGE2 in Male Smokers

NCT01796951
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
Aspirin 325 mg daily, Celecoxib 200 mg BID
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
35 Years to 90 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 3, 2017 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reactions to Reduced Nicotine Cigarettes in Young Adult Low-Frequency Smokers

NCT02989038
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Very Low Nicotine Content Cigarettes, Intermediate Nicotine Content Cigarettes, Normal Nicotine Content Cigarettes
Other
Lead sponsor
Duke University
Other
Eligibility
15 Years to 25 Years
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Jul 20, 2026, 6:41 PM EDT
Recruiting Not applicable Interventional

Circuitry-Guided Smoking Cessation in Schizophrenia (UH3)

NCT05276050
View directory record Official record
Conditions
Smoking Cessation, Nicotine Addiction, Schizophrenia
Interventions
active F8-coil delivered rTMS, active H-coil delivered rTMS
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
22 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

School Nurse-Delivered Smoking Cessation Intervention

NCT00682474
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Dependence
Interventions
Counseling Intervention, Information Intervention
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
13 Years to 18 Years
Enrollment
1,058 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 18, 2011 · Synced Jul 20, 2026, 6:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Contingency Management, Quitting Smoking, and ADHD

NCT02266784
View directory record Official record
Conditions
Cigarette Smoking, Smoking Cessation
Interventions
Contingency Management (CM), Transdermal nicotine skin patches (i.e. Habitrol), Supportive Counseling
Behavioral · Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Jul 20, 2026, 6:41 PM EDT
Not listed Not applicable Interventional

Examining Effects of Domain Specific Episodic Future Thinking on Cannabis Use

NCT05324813
View directory record Official record
Conditions
Marijuana Use, Marijuana Dependence, Tobacco Use, Alcohol Use, Unspecified
Interventions
Domain-Specific Episodic Future Thinking
Behavioral
Lead sponsor
Michael Sofis
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Sudbury, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Jul 20, 2026, 6:41 PM EDT