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ClinicalTrials.gov public records Last synced Oct 27, 2026, 9:48 AM EDT

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Showing 1153–1176 of 2,082 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoking Behavior Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Vaping THC From Electronic Cigarettes

NCT02955329
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Nicotine, Cannabis, PAX Loose Leaf Vaporizer
Drug · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

EVarQuit: Extended Pre-quit Varenicline to Assist in Quitting Smoking

NCT03262662
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Varenicline, Brief smoking cessation counseling
Drug · Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 70 Years
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 26, 2025 · Synced Oct 27, 2026, 9:48 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 22, 2017 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Phase 4 Interventional Results available

BREATHE 2 Clinic Stop-Smoking Treatment Outreach Study

NCT05683821
View directory record Official record
Conditions
Quitting Smoking, Smoking Cessation, Smoking, Cigarette
Interventions
Text message smoking treatment, Nicotine replacement therapy sampling, Wisconsin Tobacco QuitLine Referral, Referral to Primary Care Provider, BREATHE 2 Cessation Study, Additional modalities to learn about and request treatment
Behavioral · Drug · Combination Product
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
12,376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Recruiting Not applicable Interventional

Clinical Research Evaluating Smoking Cessation With E-Cigarettes and Nicotine Therapy

NCT06948058
View directory record Official record
Conditions
Smoking Cessation, Obesity and Obesity-related Medical Conditions
Interventions
Electronic Cigarettes (EC), Nicotine replacement therapy (NRT)
Other
Lead sponsor
Brown University
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 27, 2026, 9:48 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 24, 2021 · Synced Oct 27, 2026, 9:48 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Neuroimaging Studies of Practice and Smoking

NCT03080844
View directory record Official record
Conditions
Smoking Cessation
Interventions
Delay time to first cigarette, Therapy
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 5, 2021 · Synced Oct 27, 2026, 9:48 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Smoking Cessation Intervention

NCT03072511
View directory record Official record
Conditions
Smoking Cessation
Interventions
Spotlight on Smoke-Free Living: Mindsets and Decisions, Transdermal Nicotine Patch
Behavioral · Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 23, 2020 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Nicotine Plasma Concentrations and Subjective Effects for Three Electronic Cigarettes vs Combustible Cigarettes and Nicotine Gum

NCT02269514
View directory record Official record
Conditions
Smoking
Interventions
Own Brand Cigarette, Electronic Cigarette #1, Electronic Cigarette #2, Electronic Cigarette #3, Leading U.S. Nicotine Gum
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 4, 2018 · Synced Oct 27, 2026, 9:48 AM EDT
Recruiting Not applicable Interventional

Scalable TELeheaLth Cancer CARe: The STELLAR Program to Treat Cancer Risk Behaviors

NCT05687604
View directory record Official record
Conditions
Obesity, Smoking Cessation, Physical Inactivity
Interventions
multiple behavior change therapy
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Menstrual Cycle Effects on Smoking Cessation and Cue Reactivity

NCT00664755
View directory record Official record
Conditions
Nicotine Dependence
Interventions
varenicline, transdermal nicotine patch
Drug · Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 24, 2018 · Synced Oct 27, 2026, 9:48 AM EDT
Not yet recruiting Not applicable Interventional

Deep Transcranial Magnetic Stimulation for Tobacco Cessation in Adults With Opioid Use Disorder

NCT07770555
View directory record Official record
Conditions
Opioid Use Disorder, Tobacco Use Disorder
Interventions
Deep TMS System With H4 Coil
Device
Lead sponsor
Payel Roy
Other
Eligibility
22 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Behavioral Smoking Cessation Treatment - 1

NCT00110825
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cognitive Behavior Therapy
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
304 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Results available

QuitBet Phase II: A Digital Social Game That Pays You to Stop Smoking

NCT05075213
View directory record Official record
Conditions
Smoking Cessation
Interventions
contingency management (deposit contract), leaderboard and social feed, smoking cessation resource list
Behavioral
Lead sponsor
WayBetter, Inc.
Industry
Eligibility
21 Years and older
Enrollment
245 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Phase 2 Interventional

Tobacco Treatment Optimization and Preferences During Concurrent Cancer Treatment

NCT04634071
View directory record Official record
Conditions
Smoking Cessation, Cancer, Treatment-Related
Interventions
Varenicline, Bupropion, Long-acting nicotine replacement therapy, Low-intensity counseling, High-intensity counseling, No nicotine replacement therapy, Nicotine Replacement Products
Drug · Behavioral · Other
Lead sponsor
Joseph Valentino, MD
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
3
States / cities
Bowling Green, Kentucky • Lexington, Kentucky • Owensboro, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional

Interventions to Help Smoking Parents of Inpatients Reduce Exposure (INSPIRE)

NCT02281864
View directory record Official record
Conditions
Tobacco Use Cessation, Second Hand Tobacco Smoke
Interventions
Smoking Cessation Intervention Bundle, Control Group: Quitline
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 80 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Oct 27, 2026, 9:48 AM EDT
Terminated Phase 3 Interventional Results available

Simvastatin Therapy for Moderate and Severe COPD

NCT01061671
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
simvastatin, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 80 Years
Enrollment
885 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
35
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2018 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Characterization of Product Use in Smokers Switching From Cigarettes to a RELX Electronic Nicotine Delivery System

NCT04708106
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, RELX ENDS Tobacco and Menthol Flavors
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 65 Years
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
5
States / cities
Bentonville, Arkansas • Lexington, Kentucky • Springfield, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 27, 2026, 9:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Baby Albert: Electronic Cigarette Pharmacokinetics (PK) and Abuse Liability

NCT03637452
View directory record Official record
Conditions
Tobacco Use
Interventions
Not listed
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Results available

Message Testing in Older Adult Smokers

NCT05471349
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Flyer and video
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
50 Years to 80 Years
Enrollment
820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of the Media Detective Program for Elementary School-Aged Children to Prevention Substance Use

NCT01060852
View directory record Official record
Conditions
Alcohol Drinking, Tobacco Smoking
Interventions
Media Detective
Behavioral
Lead sponsor
Innovation Research & Training
Other
Eligibility
7 Years to 12 Years
Enrollment
679 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 11, 2014 · Synced Oct 27, 2026, 9:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Defective FGFR2 Signaling in the Small Airway Basal Progenitor Cells in COPD

NCT02341326
View directory record Official record
Conditions
COPD, Smoking, Lung Disorder
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Oct 27, 2026, 9:48 AM EDT
Completed Not applicable Interventional Results available

Pilot Testing a Digital Intervention to Improve Smoking Cessation in Persons With Serious Mental Illness

NCT04367506
View directory record Official record
Conditions
Tobacco Cessation
Interventions
BecomeAnEX, Usual Care
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 27, 2026, 9:48 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Nicotine Reduction on Smoking Behavior in ADHD Smokers

NCT02599571
View directory record Official record
Conditions
Nicotine Dependence, ADHD
Interventions
Very low nicotine content cigarettes, Conventional nicotine content cigarettes
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 40 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Durham, North Carolina • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 27, 2026, 9:48 AM EDT