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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Smoking (Tobacco) Addiction Clear all
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 Jul 24, 2026, 1:07 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 Jul 24, 2026, 1:07 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GABA (Gamma Amino Butyric Acid) Medication for Tobacco

NCT00644137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
pregabalin, cigarettes
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Jul 24, 2026, 1:07 AM EDT
Terminated Not applicable Interventional Results available

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

NCT03576768
View directory record Official record
Conditions
Smoking, Cigarette, Craving, Addiction, Nicotine
Interventions
Real cTBS, Sham cTBS, Real iTBS, Sham iTBS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional

Study on Sit to Quit Phone Intervention

NCT02840435
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Sit to Quit, Quit for Life
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Early Phase 1 Interventional

Nicotine TMS EFT Smoking Pilot Study

NCT03579953
View directory record Official record
Conditions
Smoking, Nicotine Dependence, Addiction, Smoking, Cigarette
Interventions
Real cTBS, Sham cTBS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Random Nicotine Delivery on Smoking Cessation

NCT03674970
View directory record Official record
Conditions
Smoking Cessation, Cigarette Smoking, Smoking (Tobacco) Addiction
Interventions
Nicotine Film
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Jul 24, 2026, 1:07 AM EDT
Active, not recruiting No phase listed Observational Results available

Evaluation of a Smoking Cessation Program for Long-Term Abstinence

NCT06746025
View directory record Official record
Conditions
Nicotine Addiction, Smoking Cessation
Interventions
Quit Center cessation program
Behavioral
Lead sponsor
Quit Center LLC
Industry
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Naples, Florida
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Effectiveness of Reducing Smoking in Facilitating Smoking Cessation in Adolescents - 2

NCT00158158
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
Usual Care, Smoking Reduction
Drug · Other
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
13 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Vaping Nicotine on Cognition in Young Adults

NCT04901208
View directory record Official record
Conditions
Nicotine Addiction, Vaping
Interventions
Nicotine pod, Placebo pod
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 30 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 21, 2024 · Synced Jul 24, 2026, 1:07 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 29, 2025 · Synced Jul 24, 2026, 1:07 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 11, 2018 · Synced Jul 24, 2026, 1:07 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

High Dose Bupropion for Smoking Cessation - Pilot Study

NCT03326128
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco, Smoking (Tobacco) Addiction, Cessation, Tobacco, Cigarette Smoking
Interventions
Bupropion Hydrochloride
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2023 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Tobacco Intervention in Buprenorphine Treatment

NCT01350011
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Innovative System, Standard Treatment Control (STC)
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2018 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Examining the Effect of the Nicotine Patch in Male and Female Smokers - 3

NCT00390559
View directory record Official record
Conditions
Drug Addiction, Smoking Cessation
Interventions
Nicotine transdermal system, Nicotine containing cigarette, Placebo cigarette
Drug · Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 17, 2012 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional

Testing the Effect of ENDS Flavors on Neurotransmission

NCT05836051
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Flavor
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Jul 24, 2026, 1:07 AM EDT
Completed No phase listed Observational

HIV Infection and Tobacco Use Among Injection Drug Users in Baltimore, Maryland: A Pilot Study of Biomarkers

NCT00491335
View directory record Official record
Conditions
HIV Infections, AIDS, Lung Cancer, Tobacco Addiction, Drug Addiction
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
17 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Quit Smoking Study for People Who Use E-Cigarettes

NCT04946825
View directory record Official record
Conditions
Nicotine Addiction, E-Cig Use, Quitting Smoking
Interventions
Nicotine replacement therapy patch, Nicotine replacement therapy lozenge, Quit electronic cigarettes, Continue electronic cigarettes
Drug · Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 29 Years
Enrollment
396 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Jul 24, 2026, 1:07 AM EDT
Recruiting Phase 2 Interventional

The CONQUER Trial - Cessation Of Nicotine, QUitting With E-cigarette Reduction

NCT07322432
View directory record Official record
Conditions
Addiction Nicotine
Interventions
VapeAway filter system
Device
Lead sponsor
VapeAway
Industry
Eligibility
21 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Early Phase 1 Interventional

Compensatory Behavior of E-cig Users in Response to Reduced Nicotine E-liquids

NCT06602492
View directory record Official record
Conditions
Healthy, Nicotine Addiction, Electronic Cigarette Use
Interventions
Lower nicotine e-liquid, Higher nicotine eliquid
Drug
Lead sponsor
Rochester Institute of Technology
Other
Eligibility
21 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional Results available

A Study to Help People Quit Smoking.

NCT01880099
View directory record Official record
Conditions
Nicotine Dependence
Interventions
placebo, Galantamine 8mg, Galantamine 16mg
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 22, 2020 · Synced Jul 24, 2026, 1:07 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Intensive Behavioral Training Program on Impulsivity and Inhibitory Control in Smokers

NCT01314378
View directory record Official record
Conditions
Tobacco Smoking, Nicotine Dependence, Impulsivity, Addiction, Substance Dependence
Interventions
Mindfulness Training, Cognitive-Behavioral Therapy
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 1, 2012 · Synced Jul 24, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Circuitry-Guided Smoking Cessation in Schizophrenia (UH3)

NCT05276050
View directory record Official record
Conditions
Smoking Cessation, Nicotine Addiction, Schizophrenia
Interventions
active F8-coil delivered rTMS, active H-coil delivered rTMS
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
22 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Jul 24, 2026, 1:07 AM EDT
Completed Not applicable Interventional Results available

Clinical Trial of Smoking Cessation Mobile Phone Program

NCT02656745
View directory record Official record
Conditions
Nicotine Addiction, Drug Addiction, Drug Dependence, Substance Use Disorder, Tobacco Dependence
Interventions
Mobile Smoking Cessation Solution
Device
Lead sponsor
Click Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced Jul 24, 2026, 1:07 AM EDT