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ClinicalTrials.gov public records Last synced Oct 30, 2026, 6:26 AM EDT

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Showing 1441–1464 of 2,082 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoking Behavior Clear all
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 2, 2018 · Synced Oct 30, 2026, 6:26 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 30, 2026, 6:26 AM 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 30, 2026, 6:26 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Project Q Pilot: Smoking Cessation for Light Smokers

NCT03416621
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Cognitive behavioral cessation counseling, Counseling and placebo drug intervention, Counseling and active drug intervention
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Oct 30, 2026, 6:26 AM EDT
Withdrawn Phase 2 Interventional

Varenicline for the Treatment of Cannabis and Tobacco Use Disorders in Veterans

NCT05294263
View directory record Official record
Conditions
Tobacco Use Disorder, Cannabis Use Disorder
Interventions
Varenicline, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional

Voucher Based Incentives to Treat Pregnant Smokers

NCT01801384
View directory record Official record
Conditions
Efficacy of Financial Incentives
Interventions
Voucher-based incentives
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 12, 2023 · Synced Oct 30, 2026, 6:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Tobacco Use Among Arab American Youth

NCT00059514
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Modified Project Toward No Tobacco Use
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
14 Years to 18 Years
Enrollment
2,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
Dearborn, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 5, 2017 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Results available

Changes in Biomarkers Associated With Use of Electronic Cigarettes

NCT03084315
View directory record Official record
Conditions
Biomarkers
Interventions
E-Cig Zero Nicotine, E-Cig 24mg Nicotine
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short-Term Cardiovascular Effects of E-Cigarettes: Influence of E-Liquid pH

NCT04449510
View directory record Official record
Conditions
Cardiovascular Risk Factor, Nicotine Dependence
Interventions
Electronic Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Phase 1Phase 2 Interventional

Antibody and Safety Study of 6 Doses of NicVAX in Smokers

NCT00598325
View directory record Official record
Conditions
Smoking
Interventions
3'-aminomethyl-Nic r-EPA Conjugate (NicVAX®)
Biological
Lead sponsor
Nabi Biopharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated May 9, 2012 · Synced Oct 30, 2026, 6:26 AM EDT
Terminated Phase 1 Interventional

Study of Injectable Naltrexone and Oral Bupropion Among Cigarette Smokers With Schizophrenia

NCT06374290
View directory record Official record
Conditions
Smoking Cessation
Interventions
Naltrexone (Vivitrol), Bupropion
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Behavioral Memory Modulation in Nicotine Addiction

NCT03744559
View directory record Official record
Conditions
Nicotine Use Disorder
Interventions
Retrieval Extinction Training (RET), Control Retrieval Extinction Training (RET)
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
25 Years to 65 Years
Enrollment
191 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2025 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use and Harm Exposure in New Low Nicotine Cigarettes

NCT01202942
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Quest
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
246 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 19, 2013 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Results available

Financial Incentives for Homeless Smokers: A Community-based RCT

NCT04445662
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Financial incentives, Varenicline, Tobacco coaching
Behavioral · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

In It To Quit: Commitment Contracts for Smoking Cessation

NCT02596061
View directory record Official record
Conditions
Smoking
Interventions
Deposit Contract, Incentives
Behavioral · Other
Lead sponsor
Community Health Center, Inc.
Industry
Eligibility
18 Years and older
Enrollment
311 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Middletown, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 26, 2018 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Isradipine Enhancement of Virtual Reality Cue Exposure for Smoking Cessation

NCT03083353
View directory record Official record
Conditions
Nicotine Dependence, Smoking, Cigarette, Smoking Cessation, Smoking Behaviors, Smoking Reduction, Craving
Interventions
Isradipine, Cue Exposure
Drug · Behavioral
Lead sponsor
Jasper A. Smits
Other
Eligibility
18 Years to 65 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 30, 2026, 6:26 AM EDT
Withdrawn Phase 2 Interventional

Electronic Nicotine Delivery Systems as a Smoking Cessation Treatment

NCT02487953
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine patch, ENDS, Placebo patch, Placebo ENDS
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Varenicline (Chantix) and Bupropion (Zyban) on Smoking Lapse Behavior

NCT00580853
View directory record Official record
Conditions
Smoking Lapse Behavior
Interventions
varenicline, bupropion, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 8, 2018 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Results available

QuitFast: Evaluating Transcranial Magnetic Stimulation as a Tool to Reduce Smoking Directly Following a Quit Attempt

NCT04159571
View directory record Official record
Conditions
Smoking, Smoking Cessation, Craving, Addiction, Addiction Nicotine, Nicotine Dependence, Cigarette Smoking
Interventions
Real TBS to the vmPFC, Sham cTBS to the vmPFC
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Oct 30, 2026, 6:26 AM EDT
Completed No phase listed Observational

Role of an E-cigarette on Smoking Displacement in Smokers With Schizophrenia

NCT03075202
View directory record Official record
Conditions
Schizophrenia and Related Disorders
Interventions
e-cigarette, brand name JUUL
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
21 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2019 · Synced Oct 30, 2026, 6:26 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 30, 2026, 6:26 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 30, 2026, 6:26 AM EDT
Recruiting Not applicable Interventional

Shaping Habitual Impulses For a Tobacco-free Style

NCT07025772
View directory record Official record
Conditions
ST+ABR, ST+SHAM, ST-only
Interventions
ST+ABR, ST+Sham, ST Only
Behavioral
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 30, 2026, 6:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cardiovascular Assessment of the Effects of Tobacco and Nicotine Delivery Products

NCT01964807
View directory record Official record
Conditions
Adverse Effect of Other Agents Primarily Affecting the Cardiovascular System, Initial Encounter
Interventions
Cigarette, NIDA test type with 16.6 mg nicotine, Cigarette, NIDA test type with <0.45 mg nicotine, Electronic cigarette with 18 mg/ml nicotine, Electronic Cigarette with no nicotine, Moist snuff, Sham Smoking, Secondhand cigarette smoke (SHS), Conditioned, filtered air, Sham Moist Snuff
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2021 · Synced Oct 30, 2026, 6:26 AM EDT