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ClinicalTrials.gov public records Last synced Oct 11, 2026, 10:01 AM EDT

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Showing 169–192 of 860 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tobacco Abuse Clear all
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Switching to Very Low Nicotine Content Cigarettes vs Reducing Cigarettes Per Day

NCT03060083
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content (VLNC) cigarettes and nicotine replacement therapy (NRT), Reduce cigarettes per day (CPD) with nicotine replacement therapy (NRT)
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Aspirin and Zileuton and Biomarker Expression in Nasal Tissue of Current Smokers

NCT02348203
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Aspirin, Laboratory Biomarker Analysis, Placebo Administration, Zileuton
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
2
States / cities
Tucson, Arizona • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 2, 2022 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional

Targeting Tobacco Cessation During Treatment for Cannabis Use Disorders

NCT01834794
View directory record Official record
Conditions
Cannabis Dependence
Interventions
MET/CBT/CM plus NRT
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Concord, New Hampshire • Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jan 14, 2019 · Synced Oct 11, 2026, 10:01 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Study of Lunesta Versus Placebo for Sleep Problems Related to Smoking Cessation and Zyban

NCT00511134
View directory record Official record
Conditions
Insomnia, Nicotine Dependence
Interventions
Eszopiclone, Bupropion
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sex Differences in E-cig Perception: Study 1

NCT05432830
View directory record Official record
Conditions
Nicotine Addiction, E-Cig Use, Cigarette Smoking, Sex Differences
Interventions
E-liquid Flavor 1, E-liquid Flavor 2, E-liquid Flavor 3
Other
Lead sponsor
Yale University
Other
Eligibility
21 Years to 44 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 11, 2026, 10:01 AM EDT
Terminated Not applicable Interventional Results available

Accelerated rTMS for the Reduction of Nicotine Craving

NCT03352609
View directory record Official record
Conditions
Nicotine Use Disorder, Nicotine Dependence
Interventions
Active rTMS with MagVenture MagPro double blind rTMS system, Sham rTMS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional

Tobacco Approach Avoidance Training for Adolescent Smokers-1

NCT01625767
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
AAT experiment
Behavioral
Lead sponsor
Yale University
Other
Eligibility
13 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 21, 2013 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Results available

Topiramate to Aid Smoking Cessation in Alcohol Dependent Men

NCT00802412
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Dependence
Interventions
Topiramate, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 70 Years · Male only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Early Phase 1 Interventional Results available

Pilot Study on Mindfulness for Tobacco and Alcohol in University Students

NCT01679236
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Use
Interventions
Mindfulness Training for Smokers, Interactive Learning for Smokers
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 29 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 24, 2014 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD190202: Study to Assess Elements of Abuse Liability for Two Electronic Nicotine Delivery Systems

NCT04094363
View directory record Official record
Conditions
Smoking, Tobacco Smoking, Tobacco Use
Interventions
Product A, Product B, Product C, Product D
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
2
States / cities
Knoxville, Tennessee • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Oct 11, 2026, 10:01 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Adaptive Treatment Strategies for Improving Engagement With a Web-Based Smoking Intervention in Socially Anxious Smokers

NCT04260776
View directory record Official record
Conditions
Social Anxiety Disorder, Tobacco Use Disorder
Interventions
Phase 1: Web-based intervention (MyWebQuit) with 1-way text messages, Phase 1: Web-based intervention (MyWebQuit) with interactive, 2-way text messages, Phase 2: re-engagement text messages, Phase 2: re-engagement emails
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 8, 2021 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Abuse Liability of Reduced Nicotine Content Cigarettes in the Context of Concurrent E-Cigarette Use

NCT02870218
View directory record Official record
Conditions
Nicotine Addiction, Cigarette Smoking
Interventions
Smoking research cigarettes with e-cigarette, Nicotine discrimination thresholds
Drug
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 14, 2022 · Synced Oct 11, 2026, 10:01 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Lab to Real World Assessment of E-cigarette Abuse Liability and Appeal

NCT02520349
View directory record Official record
Conditions
Nicotine Dependence
Interventions
MarkTen and e-Go e-cigarettes
Device
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 6, 2020 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Dronabinol (Oral THC) on Cannabis Use

NCT01394185
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Dronabinol 120mg/day, Placebo, Dronabinol 240mg/day
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low Nicotine Cigarettes Plus Electronic Cigarettes

NCT04058717
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Normal Nicotine Content research cigarettes, High Nicotine e-cigarette, Very Low Nicotine Content research cigarettes, Zero Nicotine e-cigarette
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 70 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Oct 11, 2026, 10:01 AM EDT
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 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sugars in Cigarettes

NCT05308316
View directory record Official record
Conditions
Tobacco Use
Interventions
Cigarettes with added sucrose
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Provider and Peer Delivered Youth Smoking Intervention

NCT00435344
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Pediatric Practice-Based Smoking Intervention
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
13 Years to 17 Years
Enrollment
2,711 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 14, 2007 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Coping Skills Treatment for Smoking Cessation

NCT01061528
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Transdermal Nicotine
Drug
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Oct 11, 2026, 10:01 AM 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 15, 2018 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Results available

Effectiveness of GSK598809, a Selective D3 Antagonist, Added to CBT and NRT for Smoking Cessation and Relapse Prevention

NCT01188967
View directory record Official record
Conditions
Nicotine Dependence
Interventions
GSK598809, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 4 Interventional Results available

Evaluation of Treatments to Improve Smoking Cessation Medication Adherence

NCT01120704
View directory record Official record
Conditions
Smoking, Smoking Cessation, Adherence, Nicotine Dependence, Motivation
Interventions
Short Term Combination Nicotine Replacement Therapy (patch + gum), Long Term Combination Nicotine Replacement Therapy (patch + gum), Intensive Maintenance Counseling, Cognitive Medication Adherence Counseling (CAM), Electronic Medication Monitoring Device (the Helping Hand) + Feedback, Automated Adherence Prompting Phone Calls
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 99 Years
Enrollment
544 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 11, 2015 · Synced Oct 11, 2026, 10:01 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Testing Methylphenidate for Smoking Abstinence

NCT00549640
View directory record Official record
Conditions
Smoking
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 19, 2011 · Synced Oct 11, 2026, 10:01 AM EDT
Active, not recruiting Not applicable Interventional

Comparing an Opt-out to an opt-in Approach for Smoking Cessation in VA Primary Care Clinics

NCT03477435
View directory record Official record
Conditions
Tobacco Use
Interventions
Staff training and academic detailing
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
1,365 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 11, 2026, 10:01 AM EDT