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ClinicalTrials.gov public records Last synced Oct 16, 2026, 1:04 AM EDT

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Showing 841–864 of 1,795 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tobacco Products Clear all
Completed Phase 2 Interventional Results available

Combining Varenicline and Naltrexone for Smoking Cessation

NCT02698215
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Use Disorder
Interventions
Varenicline, Varenicline plus Naltrexone
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 15, 2021 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Promotion and Mitigation Factors Leading to Illegal Tobacco Purchases

NCT06001840
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Vaping
Interventions
Promotion factors, Mitigation strategies
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Text Message Support to Prevent Smoking Relapse

NCT02968095
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Text Message Craving Program, Self-Help Manual Plus Control Texts
Behavioral
Lead sponsor
Miami University
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Oxford, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 15, 2019 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Phase 3 Interventional Results available

Smoking Cessation With the Nicotine Patch: A Pilot Study of Patch Messaging

NCT01287377
View directory record Official record
Conditions
Smoking Cessation
Interventions
Telephone Counseling, Nicotine Patches
Behavioral · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2020 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Transcranial Magnetic Stimulation and Tobacco Use Disorder

NCT03827265
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
repetitive transcranial magnetic stimulation (rTMS)
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 8, 2025 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Screening, Brief Intervention, and Referral to Treatment in Primary Care

NCT01966432
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Substance-related Disorders
Interventions
Referral to Treatment, Brief Intervention
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 3, 2018 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Pain and Smoking Study

NCT02971137
View directory record Official record
Conditions
Smoking, Pain, Smoking Cessation
Interventions
Smoking Cessation plus CBI, Smoking Cessation Standard
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
2
States / cities
West Haven, Connecticut • Leeds, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Bupropion Treatment for Youth Smoking Cessation

NCT00344695
View directory record Official record
Conditions
Nicotine Dependence
Interventions
bupropion SR
Drug
Lead sponsor
University of Arizona
Other
Eligibility
14 Years to 17 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2003
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 27, 2006 · Synced Oct 16, 2026, 1:04 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Vaping High vs. Low Nicotine E-Liquid

NCT04047836
View directory record Official record
Conditions
Cardiovascular Risk Factor, Nicotine Dependence
Interventions
Low Nicotine E-Liquid, Medium or High Nicotine E-Liquid
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 22, 2023 · Synced Oct 16, 2026, 1:04 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Journey of Transformation Curriculum for Native American Youth

NCT05731713
View directory record Official record
Conditions
Alcohol Drinking, Tobacco Use, Substance Use, Sexual Behavior
Interventions
Journey of Transformation-Native Youth Health Leadership Program curriculum
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
13 Years to 16 Years
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addiction and Behavior Related to Menthol Cigarette Substitutes

NCT04844762
View directory record Official record
Conditions
Smoking (Tobacco) Addiction
Interventions
Menthol cigarettes substitutes, Usual brand menthol cigarettes and substitutes, Menthol cigarettes substitutes and menthol cigarettes
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 9, 2024 · Synced Oct 16, 2026, 1:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Chemical Dependency and Smoking Cessation: Patient's Views - 1

NCT00051883
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 70 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2005
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201204 An Actual Use Study of P12 Electronic Nicotine Delivery System Among U.S. Adult Smokers

NCT05960305
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P1213416, P1213422, P1213716, P1213722, P1211216, P1211222, P1213616, P1213622, P1213816, P1213822, P1211916, P1211922
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
1,845 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
12
States / cities
Phoenix, Arizona • Fort Lauderdale, Florida • Orlando, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dentistry United to Extinguish Tobacco

NCT01615237
View directory record Official record
Conditions
Tobacco Use Treatment
Interventions
Audit and performance feedback (PF), Financial Incentive (P4P), Current Best Practices (CBP)
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
3,207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 15, 2019 · Synced Oct 16, 2026, 1:04 AM EDT
Active, not recruiting Not applicable Interventional

Developing an E-Cigarette Cessation Intervention for Hispanic/Latina(o) Youth in Florida: The BReATHE Study

NCT07192601
View directory record Official record
Conditions
Vaping Teens, Vaping Behaviors, Vaping Cessation, Tobacco Use Disorder
Interventions
E-cigarette Cessation Manual
Behavioral
Lead sponsor
Florida International University
Other
Eligibility
14 Years to 18 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Phase 1Phase 2 Interventional Results available

STARS (Smoking Treatment And Remote Sampling) Study

NCT04525755
View directory record Official record
Conditions
Smoking, Smoking Cessation, Tobacco Smoking, Cigarette Smoking
Interventions
Varenicline 0.5 MG, Nicotine Replacement Therapy (NRT)
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
652 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Effects of Narratives on Demand for Low and High Ventilated Cigarettes and Substitution for Alternative Products

NCT05487625
View directory record Official record
Conditions
Cigarette Smoking
Interventions
High-ventilated cigarette alone, Low-ventilated cigarette alone, High- and low-ventilated cigarette with high-ventilated cigarettes increasing in price, Low- and high-ventilated cigarette with high-ventilated cigarettes increasing in price, Usual, high- and low-ventilated cigarette with usual cigarettes increasing in price.
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Efficacy of Varenicline in Methadone-Stabilized Cocaine Users

NCT00567320
View directory record Official record
Conditions
Cocaine Dependence, Nicotine Dependence
Interventions
Varenicline, Sugar pill or Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 2, 2020 · Synced Oct 16, 2026, 1:04 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

A Behavioral Activation Prenatal and Postpartum Intervention for Depressed Pregnant Smokers

NCT05044546
View directory record Official record
Conditions
Depression, Tobacco Use Disorder
Interventions
Behavioral Activation Therapy, Discussion, Health Education, Questionnaire Administration, Tobacco Cessation Counseling
Behavioral · Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Tobacco Cessation in Public Housing

NCT04889638
View directory record Official record
Conditions
Smoking Cessation, Smoking Reduction, Smoking, Tobacco
Interventions
Cessation Intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Baclofen Effects in Cigarette Smokers

NCT01821560
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Baclofen, placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 16, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cigarette Smoking Decision Study

NCT04595279
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Smoking sessions
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 29 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 15, 2025 · Synced Oct 16, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional

Project Q: Cue-based Treatment Intervention to Promote Cessation Among People Who Smoke Lightly or Non-daily

NCT07425119
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cognitive Behavioral Therapy (CBT), Cue-based treatment intervention
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 16, 2026, 1:04 AM EDT
Not listed Not applicable Interventional

The Positively Quit Trial for Smoking Cessation

NCT04449458
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Positively Me, Positively Living
Behavioral
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Oct 16, 2026, 1:04 AM EDT