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ClinicalTrials.gov public records Last synced Oct 8, 2026, 2:36 AM EDT

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Showing 169–192 of 538 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tobacco Dependence Clear all
Recruiting Phase 2 Interventional

A Trial of Varenicline for E-cigarette Cessation

NCT07040566
View directory record Official record
Conditions
E-cigarette Use, Vaping, Nicotine Dependence
Interventions
Varenicline 1mg BID, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
326 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
2
States / cities
New Haven, Connecticut • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 8, 2026, 2:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Nicotine on Brain Activity as Measured by fMRI

NCT01037153
View directory record Official record
Conditions
Nicotine Dependence, Drug Abuse
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 8, 2026, 2:36 AM EDT
Recruiting Phase 2 Interventional

Cannabidiol for Reducing Cigarette Use

NCT06218056
View directory record Official record
Conditions
Tobacco Use Disorder, Tobacco Smoking, Tobacco Dependence
Interventions
Cannabidiol (CBD) 800 mg, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
North Hollywood, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional

Short Term Effects of Electronic Cigarettes in Tobacco Dependent Adults

NCT02498145
View directory record Official record
Conditions
Smoking, Nicotine Dependence
Interventions
Nicotine e-cigarette, Non-nicotine e-cigarette
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Phase 4 Interventional

The Whole Day First Grade Program

NCT00257088
View directory record Official record
Conditions
Prevention of Drug Abuse and Dependency, Alcohol Abuse and Dependency, High Risk Sex Behavior, Smoking Tobacco, School Failure
Interventions
whole day first grade program
Behavioral
Lead sponsor
American Institutes for Research
Other
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 14, 2008 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Phase 2 Interventional

Role of Metabolites in Nicotine Dependence (2) - 5

NCT00000288
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cotinine fumarate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2002
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 8, 2026, 2:36 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Effect of Smoking on Perception

NCT00456534
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
American University
Other
Eligibility
18 Years to 60 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 5, 2007 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Examining a Text Message Intervention for Smoking Cessation

NCT01166464
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
text messaging for smoking cessation, Generic text messages
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Oct 8, 2026, 2:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

EEG & Behavioral Predictors of Changes in Smoking Trajectories in Young Light Smokers

NCT02129387
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years to 25 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
1
States / cities
Carbondale, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 1, 2022 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Facebook Intervention for Young Sexual and Gender Minority Smokers

NCT03259360
View directory record Official record
Conditions
Tobacco Use, Smoking, Tobacco Dependence, Tobacco Use Disorder, Tobacco Use Cessation, Tobacco Smoking, Smoking Cessation, Smoking, Cigarette, Smoking, Tobacco
Interventions
POP:, TSP:
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 25 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 30, 2025 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Results available

Improving Tobacco Treatment Rates for Outpatient Cancer Patients Who Smoke

NCT04737031
View directory record Official record
Conditions
Cancer, Smoking, Tobacco Use, Nicotine Dependence
Interventions
Clinician Nudge, Patient Nudge
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
Not listed
Enrollment
2,146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
3
States / cities
Lancaster, Pennsylvania • Philadelphia, Pennsylvania • West Chester, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Oct 8, 2026, 2:36 AM EDT
Recruiting Not applicable Interventional

Reach Through Equitable Implementation in Utah

NCT06881069
View directory record Official record
Conditions
Tobacco Use Cessation, Tobacco Use, Tobacco Smoking, Tobacco Chewing, Tobacco Dependence
Interventions
Clinic Level: AAC - SDOH, AAC - Tobacco, Non-Bundled, Bundled, Dose 1, Dose 3, Dose 6, Dose 9, Dose 12, RPN, PPN
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
1,560 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional

Text Messaging to Engage and Retain Veterans in Smoking Cessation Counseling

NCT03177265
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Text messaging prior to first counseling call, Text-to-Enhance, Mail Notice, Telephone Counseling
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
2
States / cities
San Diego, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Intervention to Reduce Tobacco Use in Pregnant Women

NCT02083081
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Community level intervention
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
352 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Bethel, Alaska
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Results available

Treating Tobacco Dependence in Inpatient Psychiatry - 1

NCT00136812
View directory record Official record
Conditions
Tobacco Use Cessation, Tobacco Use Disorder
Interventions
stage-tailored intervention
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Oct 8, 2026, 2:36 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of a Medical-Legal Partnership Model to Connect Coal Miners QuitAid

NCT07694492
View directory record Official record
Conditions
Tobacco Use Cessation, Tobacco Use Disorder, Nicotine Dependence, Smokeless Tobacco Use
Interventions
QuitAid (pharmacist-delivered MTM), Nicotine Replacement Therapy (NRT)
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Results available

Impact of Nicotine Messaging on Nicotine Beliefs and Tobacco Use Behavior

NCT04805515
View directory record Official record
Conditions
Nicotine Dependence, Cigarettes
Interventions
Nicotine Corrective Messages
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
794 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 2, 2022 · Synced Oct 8, 2026, 2:36 AM EDT
Terminated Not applicable Interventional Results available

Tobacco Treatment as Augmentation for Cognitive Processing Therapy for PTSD

NCT02012452
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Tobacco Dependence
Interventions
Tobacco treatment, Health Education
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Oct 8, 2026, 2:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Smoking Cues on Tobacco Craving Responses and the Reinforcing Efficacy of Cigarettes in Adolescent Smokers

NCT01148355
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
13 Years to 17 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

N-acetylcysteine for Tobacco Use Disorder

NCT02737358
View directory record Official record
Conditions
Nicotine Dependence, Smoking
Interventions
N-acetylcysteine (NAC), Placebo
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional

Virtual Clinician Research Tool

NCT01408758
View directory record Official record
Conditions
Elevated Risk of Cardiovascular Disease, Tobacco Dependence
Interventions
Virtual Clinician Research Tool (VCRT), No VCRT, only physician counseling at visits
Other
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Phase 3 Interventional Results available

Optimizing Tobacco Dependence Treatment in the Emergency Department

NCT02896400
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Brief Negotiated Interview (BNI), Nicotine replacement therapy (NRT), CT Smokers Quitline (QL), SmokefreeText (Text)
Behavioral · Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
1,056 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 4, 2020 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Emergency Department Telephone Quitline

NCT00394420
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Telephone Quitline
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2010 · Synced Oct 8, 2026, 2:36 AM EDT
Completed Phase 4 Interventional Results available

Smoking Cessation Intervention: Effectiveness in Primary Care

NCT00296647
View directory record Official record
Conditions
Tobacco Dependence
Interventions
nicotine patch, nicotine lozenge, bupropion, patch + lozenge, bupropion + lozenge
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
1,346 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Oct 8, 2026, 2:36 AM EDT