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Showing 1–24 of 535 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tobacco Dependence Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Smoking, Sex Hormones, and Pregnancy

NCT01811225
View directory record Official record
Conditions
Nicotine Dependence, Contraception
Interventions
Low-dose Progesterone, High-dose Progesterone
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Jul 21, 2026, 11:31 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 18, 2011 · Synced Jul 21, 2026, 11:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Nicotine on Areas of Impaired and Preserved Functioning in Schizophrenia

NCT01034085
View directory record Official record
Conditions
Nicotine Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Combined Pharmaco/Behavior Therapy in Adolescent Smokers

NCT00330187
View directory record Official record
Conditions
Nicotine Dependence, Nicotine Use Disorder
Interventions
Bupropion SR, Contingency Management, Placebo
Drug · Behavioral · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
12 Years to 21 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2018 · Synced Jul 21, 2026, 11:31 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Young Adult Tobacco/Nicotine and Cannabis Co-use

NCT06239350
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
Counseling, Contingency management, Text-based support
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 25 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mindset Intervention for Nicotine Dependence

NCT03174730
View directory record Official record
Conditions
Psychology, Social, Smoking Cessation, Smoking (Tobacco) Addiction
Interventions
Growth Mindset, SmartQuit
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 5, 2018 · Synced Jul 21, 2026, 11:31 AM EDT
Withdrawn Not applicable Interventional

cSBI-M for Young Military Personnel

NCT01847300
View directory record Official record
Conditions
Alcohol Abuse, Tobacco Dependence, Substance Abuse
Interventions
cSBI-M
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 25 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Jul 21, 2026, 11:31 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Digital Intervention (ACT on Vaping App) for Vaping Cessation in Young Adult E-Cigarette Users

NCT06909500
View directory record Official record
Conditions
Nicotine Dependence, Tobacco-Related Carcinoma
Interventions
Smartphone app, Text Message, Survey Administration
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 30 Years
Enrollment
1,178 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Computer MI for Tobacco Quitline Engagement in Smokers Living With HIV

NCT01886924
View directory record Official record
Conditions
Smoking Cessation
Interventions
Brief Computer MI for Smoking Cessation, Nutrition Control
Behavioral
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 19, 2016 · Synced Jul 21, 2026, 11:31 AM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Nicotine and Pavlovian Bias

NCT06027723
View directory record Official record
Conditions
Nicotine Vaping, Nicotine Dependence
Interventions
Nicotine, Placebo
Drug · Other
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Drug /Cue Interactions In Alcohol-Tobacco Comorbidity

NCT00816231
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Tobacco, Alcoholic Beverage, Placebo
Behavioral · Other
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Characterize Puff Topography With Use of JUUL 5% Electronic Nicotine Delivery Systems (ENDS) in Adult Smokers

NCT03596034
View directory record Official record
Conditions
Tobacco Use, Nicotine Dependence, Other Tobacco Product, Tobacco Smoking
Interventions
JUUL 5%, Virginia Tobacco, ENDS product
Other
Lead sponsor
Juul Labs, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 13, 2021 · Synced Jul 21, 2026, 11:31 AM EDT
Terminated Phase 2 Interventional Results available

A Safety and Cognitive Function Study of EVP-6124 Versus Placebo in Subjects With Nicotine Dependence

NCT01480232
View directory record Official record
Conditions
Nicotine Dependence, Smoking Cessation
Interventions
EVP-6124, Placebo Capsule, NicoDerm Patch (Active), NRT Patch (Placebo), Brief Supportive and Behavioral Treatment
Drug · Behavioral
Lead sponsor
A. Eden Evins
Other
Eligibility
18 Years to 65 Years
Enrollment
345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2017 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 1Phase 2 Interventional

Alcohol Counseling for Telephone Quitline Callers

NCT01120080
View directory record Official record
Conditions
Smoking, Nicotine Dependence, Alcohol Dependence
Interventions
Practical Counseling, Alcohol Intervention Counseling
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
1,948 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Low Nicotine Content Cigarettes in Vulnerable Populations: Affective Disorders

NCT04090879
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Either normal nicotine content cigarettes (15.8mg/g) or reduced nicotine content cigarettes (0.4mg/g), E-Cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 70 Years
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Providence, Rhode Island • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pharmacokinetics and Pharmacodynamics of Nicotine With Use of Standardized Research Electronic Cigarette (SREC)

NCT05658471
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Toxicity, Cardiovascular Risk Factors
Interventions
Standardized Research E-Cigarette (SREC), Over the Counter E-Cigarette (EC), Biological Samples, Smoking-related Questionnaires
Other · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 2 Interventional Results available

Effect of Galantamine on Short-term Abstinence

NCT01669538
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Galantamine, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Treatment of Smoking Lapses and Relapses

NCT01807871
View directory record Official record
Conditions
Smoking Cessation
Interventions
nicotine patch, experimental use, nicotine patch, labeled use
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
701 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

THC Crossover Study

NCT04429568
View directory record Official record
Conditions
THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
Interventions
Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of Biomarkers in Children to Help Parents Quit Tobacco

NCT04832659
View directory record Official record
Conditions
Tobacco Dependence
Interventions
CEASE, CEASE + BIO
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
865 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Computer-Assisted Tobacco Interventions in Dental Offices

NCT01584882
View directory record Official record
Conditions
Smoking
Interventions
CATI Tool
Behavioral
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years to 100 Years
Enrollment
548 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Bloomington, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 22, 2023 · Synced Jul 21, 2026, 11:31 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 16, 2020 · Synced Jul 21, 2026, 11:31 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 27, 2017 · Synced Jul 21, 2026, 11:31 AM EDT
Completed Phase 1Phase 2 Interventional

Dental and Medical Office iMET to Reduce Teen Tobacco, Alcohol, and Drug Use

NCT00907309
View directory record Official record
Conditions
Use; Tobacco, Harmful, Alcohol Abuse, Drug Abuse
Interventions
iMET, iMET/TE
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 21 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Jul 21, 2026, 11:31 AM EDT