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ClinicalTrials.gov public records Last synced Oct 24, 2026, 2:58 PM EDT

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Showing 889–912 of 2,080 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoking Behavior Clear all
Completed Phase 4 Interventional

Behavioral/Drug Therapy for Alcohol-Nicotine Dependence (Naltrexone/Nicotine Patch)

NCT00000447
View directory record Official record
Conditions
Alcoholism, Smoking
Interventions
naltrexone (Revia), nicotine replacement patch
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 50 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 1, 2010 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

En Pareja: A Latino Couples Intervention to Help Expectant Fathers Quit Smoking

NCT01040949
View directory record Official record
Conditions
Smoking Cessation
Interventions
couple-based counseling for smoking cessation plus self-help smoking cessation guide, Guia -a self help smoking cessation guide
Behavioral
Lead sponsor
Duke University
Other
Eligibility
16 Years and older
Enrollment
705 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Oct 24, 2026, 2:58 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 19, 2020 · Synced Oct 24, 2026, 2:58 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Cigarette and E-cigarette Menthol Regulation on Current Smokers of Menthol Cigarettes

NCT05896033
View directory record Official record
Conditions
Smoking Prevention and Control
Interventions
Non-Menthol Cigarettes, Tobacco Flavored E-cigarettes, Menthol Cigarettes, Menthol Flavored E-cigarettes
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

QuitAdvisorMD: A Point-of-care Tool for Brief Smoking Cessation Interventions

NCT01065493
View directory record Official record
Conditions
Smoking, Tobacco Use Disorder
Interventions
QuitAdvisorMD Software Algorithm, Standard Smoking Cessation Counseling
Other · Behavioral
Lead sponsor
Silverchair Science & Communications, LLC
Industry
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2014 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Phase 4 Interventional Results available

BREATHE 2 Clinic Stop-Smoking Treatment Outreach Study

NCT05683821
View directory record Official record
Conditions
Quitting Smoking, Smoking Cessation, Smoking, Cigarette
Interventions
Text message smoking treatment, Nicotine replacement therapy sampling, Wisconsin Tobacco QuitLine Referral, Referral to Primary Care Provider, BREATHE 2 Cessation Study, Additional modalities to learn about and request treatment
Behavioral · Drug · Combination Product
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
12,376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Not yet recruiting Not applicable Interventional

Cardiovascular Impacts of E-cigarettes Among Older Adults

NCT07880704
View directory record Official record
Conditions
Hypertension, Tobacco Cigarette Smoking, Electronic Cigarettes, Cardiovascular
Interventions
Nicotine E-cigarette, Tobacco Cigarette
Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
50 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dual Use Approach Bias Training for Nicotine Addiction

NCT05306158
View directory record Official record
Conditions
Tobacco Smoking, Electronic Cigarette Use, Substance Use
Interventions
CC+ECIG Condition, CC Condition, Sham Condition
Other
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Phase 1 Interventional Results available

Improving Functional Outcomes of Veterans With PTSD and Tobacco Dependence

NCT02576899
View directory record Official record
Conditions
Tobacco, Posttraumatic Stress Disorder
Interventions
Acceptance and Commitment Therapy for PTSD and Tobacco Use, Freedom From Smoking
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Bedford, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 10, 2020 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD190301: A Study to Assess Elements of Abuse Liability for Two Dissolvable Nicotine Lozenge Tobacco Products

NCT04167384
View directory record Official record
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
Product A, Product B, Product C, Product D, Product E, Product F, Product G, Product H
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 12, 2020 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Electronic Cigarettes (E-cigarettes) as a Harm Reduction Strategy

NCT02628964
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
e-cigarettes
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 24, 2020 · Synced Oct 24, 2026, 2:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Craving in Nicotine-Dependent Patients With Schizophrenia Using Virtual Reality

NCT01031433
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 12, 2019 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional

Comparison of Demand and Substitution for Nicotine Pouches as a Function of Nicotine Dosage

NCT07213947
View directory record Official record
Conditions
Tobacco Use, Nicotine Pouch Self-Administration
Interventions
Nicotine Pouch Dosage
Other
Lead sponsor
William Middleton
Other
Eligibility
18 Years and older
Enrollment
1,360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Phase 3 Interventional Results available

Metabolism Informed Smoking Treatment: The MIST RCT

NCT04590404
View directory record Official record
Conditions
Smoking
Interventions
Post-discharge automated phone calls (IVR) with option to connect with a tobacco coach., Nicotine Replacement Therapy, Varenicline, Metabolism Informed Smoking Treatment (Nicotine metabolite ratio (NMR)-based selection of pharmacotherapy)
Behavioral · Drug · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Low-Dose Naltrexone Combined With Bupropion to Stop Smoking With Less Weight Gain

NCT00129246
View directory record Official record
Conditions
Smoking, Nicotine Dependence
Interventions
Naltrexone, Bupropion
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Switching to Reduced Oxidant or Nicotine Content Cigarettes in Smokers

NCT02415270
View directory record Official record
Conditions
Tobacco Smoking Behavior
Interventions
Reduced Nicotine Cigarettes, Reduced ROS/RNS, Control
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 27, 2018 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Financial Incentives for Smoking Cessation Treatment Engagement

NCT04601870
View directory record Official record
Conditions
Quitting Smoking
Interventions
No Financial Incentive, Financial Incentive (100 dollars), Financial Incentive (50 dollars)
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 25, 2023 · Synced Oct 24, 2026, 2:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effectiveness of Using Reduced Nicotine Cigarettes in Men and Women Smokers to Combat Nicotine Addiction

NCT00264342
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Use Disorder
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 23, 2013 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Vaping Ethanol in the Evaluation of Impairment

NCT03826303
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
E-cigarette liquid with ethanol, 1 puff, E-cigarette liquid without ethanol, 1 puff, E-cigarette liquid with ethanol, 10 puffs, E-cigarette liquid without ethanol, 10 puffs
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
21 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Oct 24, 2026, 2:58 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

CONNECT Cancer Survivors With Tobacco Treatment

NCT07020273
View directory record Official record
Conditions
Tobacco Use, Tobacco Use Cessation, Smoking Cessation, Nicotine Addiction, Tobacco Smoking
Interventions
ELEVATE, ELEVATE-S
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
3,543 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Recruiting Not applicable Interventional

Evaluating the Effect of Nicotine on Eye Movements and Related Behaviors in Electronic Cigarette Users, NICS-EYES Trial

NCT07604246
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Avoidance, Biospecimen Collection, Cigarette Smoking, Eye Movement Measurement, Healthcare Activity, Questionnaire Administration, Refrain from Smoking, Vaping, Standardized E-Cigarette Nicotine Administration
Behavioral · Procedure · Other + 1 more
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing Relapse Prevention for Smoking Cessation With Repetitive Transcranial Magnetic Stimulation

NCT02822703
View directory record Official record
Conditions
Smoking Cessation
Interventions
rTMS Active 20Hz, rTMS Sham
Device
Lead sponsor
The City College of New York
Other
Eligibility
21 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 4, 2016 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine in Tobacco Smokers

NCT03651869
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Oct 24, 2026, 2:58 PM EDT
Completed Not applicable Interventional

Impact of Smoking and Its Cessation on Systemic and Airway Immune Activation

NCT02836067
View directory record Official record
Conditions
HIV, Smoking
Interventions
Counseling, Smoking Cessation drugs, Bronchoscopy, Blood Draw, Questionnaires
Behavioral · Other · Procedure
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 5, 2024 · Synced Oct 24, 2026, 2:58 PM EDT