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Showing 1–24 of 79 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tobacco Abstinence Clear all
Completed Phase 2 Interventional Accepts healthy volunteers

Maintaining Abstinence in Chronic Cigarette Smokers - 1

NCT00087880
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion and NRT
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
407 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Smoking Abstinence and Lapse Effects in Smokers With Schizophrenia and Controls

NCT01214005
View directory record Official record
Conditions
Tobacco Use Disorder, Schizophrenia
Interventions
smoking abstinence
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 26, 2012 · Synced Sep 25, 2026, 4:14 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Mobile Media-Rich Interactive Guideline System (MMRIGS) Pilot Study

NCT02302859
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Nicotine Patch, Questionnaires, Pamphlet, Phone Counseling Sessions, Saliva Test, Smart phone
Drug · Behavioral · Other + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Abstinence From E-cigarettes Produce Withdrawal Symptoms?

NCT02825459
View directory record Official record
Conditions
Substance Withdrawal Syndrome
Interventions
Abstinence from e-cigarettes
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Sep 25, 2026, 4:14 AM EDT
Recruiting Phase 4 Interventional

Varenicline for Smoking Reduction in Veterans Not Ready To Quit

NCT06966362
View directory record Official record
Conditions
Veterans, Tobacco Use Disorder, Cigarette Smoking, Tobacco Dependence
Interventions
Motivation-Phase Varenicline, Motivation-Phase Nicotine Mini-Lozenge, Cessation-Phase Combination Nicotine Replacement Therapy (NRT), Cessation-Phase Varenicline, Motivation-Phase Counseling, Cessation-Phase Counseling
Drug · Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
4
States / cities
San Diego, California • Minneapolis, Minnesota • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional

Enhancing Tobacco Abstinence Following Hospitalization

NCT00222703
View directory record Official record
Conditions
Hospitalized Smokers, Chronic Diseases, Tobacco Use Disorder
Interventions
Smoking relapse prevention
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2005 · Synced Sep 25, 2026, 4:14 AM EDT
Recruiting No phase listed Observational

Measuring Communal Coping in Dual-smoking Couples Making a Quit Attempt

NCT07553962
View directory record Official record
Conditions
Smoking (Tobacco) Addiction, Smoking ( Cigarette), Tobacco, Tobacco Abstinence, Quitting Smoking, Smoking Cessation
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 25, 2026, 4:14 AM EDT
Terminated Phase 2 Interventional Results available

Effects of ABT-089 on Smoking Abstinence Symptoms and Reward

NCT01756053
View directory record Official record
Conditions
Nicotine Addiction
Interventions
ABT-089, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 28, 2014 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional

Education and Counseling for Abstinence From Tobacco After Pregnancy

NCT00139529
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases
Interventions
Motivational Interviewing Telephone Counseling, Educational Intervention
Behavioral
Lead sponsor
Brown University
Other
Eligibility
16 Years and older · Female only
Enrollment
757 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 4 Interventional Results available

Varenicline Effects In Schizophrenic Smokers

NCT00548470
View directory record Official record
Conditions
Schizophrenia, Tobacco Use Disorder, Nicotine Dependance
Interventions
Varenicline
Drug
Lead sponsor
Nathan Kline Institute for Psychiatric Research
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2018 · Synced Sep 25, 2026, 4:14 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 Sep 25, 2026, 4:14 AM EDT
Recruiting Not applicable Interventional

Implementation of Tobacco Cessation Programming at Community Behavioral Health Sites

NCT06837220
View directory record Official record
Conditions
Nicotine Use Disorder, Smoking Cessation, Smoking Cessation Intervention
Interventions
Enhanced Courage to Quit
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 26 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 3 Interventional Results available

Telephone Counseling and the Distribution of Nicotine Patches to Smokers

NCT00851357
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Patch, Telephone Counseling, Placebo, Self-Help Materials
Drug · Behavioral · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
4,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional

Web and Phone Intervention to Maintain Postpartum Tobacco Abstinence

NCT01864954
View directory record Official record
Conditions
Smoking
Interventions
Web+phone
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 4 Interventional

Smoking Study With Behavioral Therapy for Hypertensive Patients

NCT00879177
View directory record Official record
Conditions
Cigarette Smoking, Hypertension
Interventions
Varenicline, behavioral therapy
Drug · Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 9, 2017 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional

Smokers' Quitline for Asian Language Speakers

NCT01248832
View directory record Official record
Conditions
Smoking Cessation
Interventions
Telephone Counseling, Self-Help Materials
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 75 Years
Enrollment
2,277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Trial of Using SmokeBeat to Monitor and Increase Smoking Abstinence in Pregnant Women

NCT03209557
View directory record Official record
Conditions
Tobacco Use Cessation, Pregnancy Related
Interventions
SmartWatch SmokeBeat Application
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Sep 25, 2026, 4:14 AM EDT
Withdrawn Not applicable Interventional

State and Trait Mediated Response to TMS in Substance Use Disorder

NCT03707600
View directory record Official record
Conditions
Nicotine Dependence
Interventions
TMS
Device
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Highdose Nicotine Patch Therapy for Smokeless Tobacco Use

NCT00939029
View directory record Official record
Conditions
Smokeless Tobacco Use
Interventions
nicotine replacement therapy (nicotine patches), placebo NRT
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 55 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 18, 2014 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 2 Interventional Results available

Effect of Galantamine on Smoking Abstinence

NCT01548638
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Galantamine ER
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Varenicline For Smokers In Recovery From Alcohol Dependence

NCT01092702
View directory record Official record
Conditions
Tobacco Abstinence
Interventions
Varenicline
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 24, 2023 · Synced Sep 25, 2026, 4:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

BRP1802 Smoking Abstinence Study

NCT04979013
View directory record Official record
Conditions
Smoking, Smoking Cessation, Tobacco Use
Interventions
Smoking Abstinence
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
24 Years to 60 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 26, 2021 · Synced Sep 25, 2026, 4:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Activity and Smoking Cessation

NCT01186055
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Smoking Cessation Counseling
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 14, 2013 · Synced Sep 25, 2026, 4:14 AM EDT
Not yet recruiting Phase 4 Interventional

Impact of Daridorexant on Sleep, Daytime Alertness, and Smoking

NCT07328594
View directory record Official record
Conditions
Smoking, Nicotine, Tobacco, Addiction, Substance Use Disorders, Insomnia, Sleep
Interventions
Daridorexant 50 mg, Placebo
Drug · Other
Lead sponsor
Legacy Health System
Other
Eligibility
18 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Sep 25, 2026, 4:14 AM EDT