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Showing 1–24 of 2,045 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Behavior, Smoking Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Contingency Management for Smoking Cessation (R01 Supplement) (PrevailGO)

NCT03517397
View directory record Official record
Conditions
Smoking Cessation
Interventions
Mobile Contingency Management
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Jun 25, 2026, 11:17 PM EDT
Completed No phase listed Observational

Alveolar Macrophage Proteomics in HIV-associated Emphysema

NCT00823927
View directory record Official record
Conditions
HIV, Emphysema, HIV Infections
Interventions
Not listed
Lead sponsor
Philip Diaz
Other
Eligibility
18 Years and older
Enrollment
365 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Usefulness of Selegiline as an Aid to Quit Smoking - 1

NCT00129311
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Selegiline, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 30, 2015 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 3 Interventional Results available

A Second Study of Cytisinicline for Smoking Cessation in Adult Smokers

NCT05206370
View directory record Official record
Conditions
Smoking Cessation
Interventions
Cytisinicline, Placebo, Behavioral support
Drug · Behavioral
Lead sponsor
Achieve Life Sciences
Industry
Eligibility
18 Years and older
Enrollment
792 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
12
States / cities
DeLand, Florida • Fort Myers, Florida • Jacksonville, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional

Potential Impact of Menthol Ban in Cigarettes and E-cigarettes

NCT05259566
View directory record Official record
Conditions
Tobacco Smoking
Interventions
menthol ban in cigarettes only, total menthol ban
Behavioral
Lead sponsor
Yale University
Other
Eligibility
21 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional

Acute Effects of TCIG vs ECIG in PLWH

NCT04568395
View directory record Official record
Conditions
E Cigarette Use, Vaping, Smoking, Tobacco Smoking, Nicotine Use Disorder, Qt Interval, Variation in, HIV I Infection, Oxidative Stress, Inflammation
Interventions
TCIG, ECIG, sham control
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 45 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2023 · Synced Jun 25, 2026, 11:17 PM EDT
Recruiting Phase 2 Interventional

Cannabidiol for Reducing Cigarette Use

NCT06218056
View directory record Official record
Conditions
Tobacco Use Disorder, Tobacco Smoking, Tobacco Dependence
Interventions
Cannabidiol (CBD) 800 mg, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
North Hollywood, California
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 4 Interventional Results available

A Study To Evaluate The Efficacy And Safety Of Varenicline Compared To Placebo For Smoking Cessation Through Reduction

NCT01370356
View directory record Official record
Conditions
Smoking Cessation
Interventions
Varenicline Tartrate, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
14
States / cities
Encino, California • Newport Beach, California • Jacksonville, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2014 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Peer-delivered and Technology-Assisted Integrated Illness Management and Recovery

NCT04481737
View directory record Official record
Conditions
Schizophrenia, Bipolar Disorder, Major Depressive Disorder, Recurrent, Obesity, Cardiovascular Diseases, Diabetes, Smoking, Blood Pressure Disorders, Cholesterol, Elevated
Interventions
Peer-delivered and Technology Support Integrated Illness Management and Recovery, Peer support
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 2 Interventional

Brief Voluntary Alcohol and Drug Intervention for Middle School Youth

NCT01081119
View directory record Official record
Conditions
Alcohol Drinking, Cigarette Smoking, Marijuana Smoking
Interventions
Project CHOICE
Behavioral
Lead sponsor
RAND
Other
Eligibility
11 Years to 15 Years
Enrollment
6,455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2014 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 2 Interventional

Tobacco Approach Avoidance Training for Adolescent Smokers-2

NCT01625637
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
AAT-experiment, AAT-placebo
Behavioral
Lead sponsor
Yale University
Other
Eligibility
13 Years to 18 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 19, 2014 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Development of a Videogame Prototype Targeting Cigarette and Marijuana Smoking, and Tobacco Product Prevention Among Young Adolescents

NCT03107936
View directory record Official record
Conditions
Smoking
Interventions
smokeSCREEN game
Behavioral
Lead sponsor
Yale University
Other
Eligibility
10 Years to 16 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
4
States / cities
Hamden, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 18, 2018 · Synced Jun 25, 2026, 11:17 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Delivering VergeRx at FQHCs

NCT06161675
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
QuitAid, SmokefreeTXT, Nicotine Replacement Therapy Patch, Nicotine lozenge
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Paroxetine on Smokers' Cardiovascular Response to Stress - 1

NCT00218439
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Paroxetine, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Psilocybin-facilitated Smoking Cessation Treatment: A Pilot Study

NCT01943994
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Psilocybin-assisted treatment, Nicotine Replacement Therapy (NRT)
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 65 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Jun 25, 2026, 11:17 PM EDT
Recruiting Phase 2 Interventional

Smoking Cessation Trial in Recurrent Acute Pancreatitis and Chronic Pancreatitis

NCT07171112
View directory record Official record
Conditions
Pancreatitis, Chronic, Pancreatitis, Acute, Recurrent Acute Pancreatitis, Smoking (Tobacco) Addiction
Interventions
Standard Varenicline Dosing (1 mg BID), Bupropion 150 mg twice daily, Increased Varenicline Dosing (1mg TID)
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Jun 25, 2026, 11:17 PM EDT
Withdrawn Not applicable Interventional

Incentives for Participation Versus Outcomes

NCT01826331
View directory record Official record
Conditions
Smoking
Interventions
Incentives for Participation, Incentives for Cessation
Behavioral
Lead sponsor
University of Rhode Island
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Kingston, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Smoking Cessation Treatment for Adult Women

NCT01422239
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Tailored treatment, Standard Treatment
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 64 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 19, 2020 · Synced Jun 25, 2026, 11:17 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Smoking Relapse Prevention Via Just-in-Time-Adaptive Interventions

NCT03690596
View directory record Official record
Conditions
Smoking Cessation
Interventions
NRT + QuitBuddy, NRT + QuitBuddy-Recall, Treatment as Usual
Other
Lead sponsor
Meharry Medical College
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 12, 2021 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Inspired: Smartphone Videogame-Based Smoking Cessation Intervention

NCT03929003
View directory record Official record
Conditions
Smoking Cessation
Interventions
Inspired
Behavioral
Lead sponsor
Rowan University
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Glassboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Not applicable Interventional

Using Practice Facilitation in Primary Care Settings to Reduce Risk Factors for Cardiovascular Disease

NCT02646488
View directory record Official record
Conditions
Cardiovascular Disease, High Blood Pressure
Interventions
Million Hearts ABCS 6 Months, Million Hearts ABCS 9 Months, Million Hearts ABCS 12 Months, Million Hearts ABCS 15 Months, Standard Care Regimen 9 Months, Standard Care Regimen 12 Months, Standard Care Regimen 15 Months, Standard Care Regimen 18 Months, Standard Care Regimen 21 Months, Standard Care Regimen 24 Months, Standard Care Regimen 27 Months, Follow Up Post Intervention 21 Months, Follow Up Post Intervention 24 Months, Follow Up Post Intervention 27 Months, Follow Up Post Intervention 30 Months, Follow Up Post Intervention 33 Months
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 85 Years
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2019 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Progesterone and Brain Imaging Study

NCT01954966
View directory record Official record
Conditions
Nicotine Dependence, Nicotine Withdrawal
Interventions
Progesterone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 4, 2022 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Donepezil on Smoking

NCT01250977
View directory record Official record
Conditions
Smoking
Interventions
Donepezil, Placebo
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Jun 25, 2026, 11:17 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Chantix & Bupropion for Smoking Cessation

NCT00587769
View directory record Official record
Conditions
Smoking, Tobacco Use Disorder
Interventions
Bupropion SR & Varenicline
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 23, 2013 · Synced Jun 25, 2026, 11:17 PM EDT