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ClinicalTrials.gov public records Last synced Oct 13, 2026, 9:41 PM EDT

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Showing 337–360 of 1,795 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tobacco Products Clear all
Completed Phase 2 Interventional

Progesterone Treatment in Female Smokers - 12

NCT00000295
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Micronized Progesterone
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 45 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2001
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Mindfulness Training for Smokers Online Feasibility Study

NCT02164656
View directory record Official record
Conditions
Cigarette Smoking, Mindfulness
Interventions
mindfulness for smokers
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 12, 2015 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201204 An Actual Use Study of P12 Electronic Nicotine Delivery System Among U.S. Adult Smokers

NCT05960305
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P1213416, P1213422, P1213716, P1213722, P1211216, P1211222, P1213616, P1213622, P1213816, P1213822, P1211916, P1211922
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
1,845 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
12
States / cities
Phoenix, Arizona • Fort Lauderdale, Florida • Orlando, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 13, 2026, 9:41 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Study of Bupropion Versus Bupropion + Naltrexone for Smoking Cessation

NCT00419731
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion, Bupropion + Naltrexone
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 3, 2009 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cooling Agent Pilot Among Adult Menthol Smokers

NCT06477601
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Assigning cooling agent type cigarettes, Assigning traditional tobacco type cigarettes, Assigning menthol type cigarettes
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Phase 4 Interventional Results available

Tobacco Use Treatment in Cancer Patients

NCT03482583
View directory record Official record
Conditions
Smoking, Cigarette
Interventions
Nicotine Replacement Therapy, Referral to AHEC/Quitline
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
5
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 22, 2020 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nicotine and Tobacco Message Framing Among LGBT Young Adults

NCT05972941
View directory record Official record
Conditions
Tobacco-Related Carcinoma
Interventions
Health communications
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 35 Years
Enrollment
252 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating Selected Constituents in the Exhaled Breath Samples

NCT04143256
View directory record Official record
Conditions
Electronic Cigarette Use, Cigarette Use, Electronic, Tobacco Use, Tobacco Smoking
Interventions
JUUL ENDS 5% Virginia Tobacco, JUUL 3% Virginia Tobacco ENDS, JUUL 5% Mint ENDS, JUUL 3% Mint ENDS, JUUL 5% Menthol ENDS, JUUL 3% Menthol ENDS, JUUL 5% Mango ENDS, JUUL 3% Mango ENDS, US Cigarette, Non-menthol - Marlboro Gold King Size, US Cigarette, Menthol - Newport King Size
Other
Lead sponsor
Juul Labs, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
3
States / cities
Secaucus, New Jersey • Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Network-Targeted Neuromodulation for Nicotine Dependence in Schizophrenia

NCT06389266
View directory record Official record
Conditions
Schizophrenia, Nicotine Dependence
Interventions
Repetitive Transcranial Magnetic Stimulation (rTMS)
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Results available

Impact of E-cigarette Characteristics on Reinforcement and Tobacco Use Patterns

NCT03844672
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
Low Power, High Power, Low Concentration, High Concentration
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 24, 2024 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Cigar Flavor in Dual Users

NCT04487470
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Flavored filtered cigars, Unflavored filtered cigars
Other
Lead sponsor
UConn Health
Other
Eligibility
21 Years to 34 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Sequential Use of Fluoxetine for Smokers With Elevated Depressive Symptoms

NCT00578669
View directory record Official record
Conditions
Major Depressive Disorder, Nicotine Dependence, Depression
Interventions
Fluoxetine, Dextrose
Drug
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
206 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Internet Stop Smoking Study - Phase VI

NCT00721786
View directory record Official record
Conditions
Smoking
Interventions
UCSF/SFGH Internet Stop Smoking Study site
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
18,154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2018 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Results available

E-Visit for COPD and Smoking Cessation

NCT04155073
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Cigarette Smoking, Telemedicine
Interventions
smoking cessation, early COPD detection, electronic visit, Treatment As Usual
Behavioral · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
40 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Oct 13, 2026, 9:41 PM EDT
Not listed No phase listed Observational

Comparative Tobacco Interventions for Individuals With Severe and Persisting Behavioral Health Disorders

NCT04523948
View directory record Official record
Conditions
Tobacco Use
Interventions
Behavioral and pharmacological support to reduce combustible tobacco use.
Behavioral
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years and older
Enrollment
100 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoker-to-Smoker (S2S) Peer Marketing and Messaging to Disseminate Tobacco Interventions

NCT03224520
View directory record Official record
Conditions
Smoking Cessation
Interventions
Recommender CTHC, Standard CTHC, Peer Recruitment, Standard Online Recruitment
Behavioral · Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
1,487 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Results available

Impact of Nicotine Messaging on Nicotine Beliefs and Tobacco Use Behavior

NCT04805515
View directory record Official record
Conditions
Nicotine Dependence, Cigarettes
Interventions
Nicotine Corrective Messages
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
794 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 2, 2022 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Phase 2 Interventional Results available

Combining Varenicline and Naltrexone for Smoking Cessation

NCT02698215
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Use Disorder
Interventions
Varenicline, Varenicline plus Naltrexone
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 15, 2021 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Results available

Sex Differences, Hormones & Smoking Cessation

NCT01744574
View directory record Official record
Conditions
Tobacco Cessation
Interventions
Placebo, Progesterone, Smoking Cessation Behavioral Counseling
Other · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 12, 2019 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Fluoxetine as a Quit Smoking Aid for Depression-Prone Smokers

NCT00018174
View directory record Official record
Conditions
Depression, Smoking
Interventions
Fluoxetine, Behavioral group smoking cessation treatment, Placebo
Drug · Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 65 Years
Enrollment
247 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2005
U.S. locations
1
States / cities
Hines, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 2, 2009 · Synced Oct 13, 2026, 9:41 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Support and Outreach to Increase Screening for Lung Cancer in Patients With a History of Smoking

NCT05679349
View directory record Official record
Conditions
Lung Carcinoma, Tobacco-Related Carcinoma
Interventions
Survey Administration, Educational Activity, Electronic Health Record Review, Counseling
Other
Lead sponsor
Ronald Myers
Other
Eligibility
50 Years to 77 Years
Enrollment
822 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 13, 2026, 9:41 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Novel vs. Usual Brand Menthol Cigarettes on Abuse Liability

NCT07564648
View directory record Official record
Conditions
Cigarette Addiction, Tobacco Use Disorder
Interventions
Biospecimen Collection, Questionnaire Administration, Cigarette Purchase Task, Cross-Price Elasticity Task, Daily Diary Surveys, Progressive Ratio Task
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 13, 2026, 9:41 PM EDT
Terminated Phase 4 Interventional

Nicotine Patch for Nicotine Dependence in Individuals With Schizophrenia or Schizoaffective Disorder - 1

NCT00046813
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine patch
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
2
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 13, 2026, 9:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Neurophysiological and Immunological Effects of the Transition From Combustible to Electronic Cigarettes

NCT02433015
View directory record Official record
Conditions
Tobacco Smoking, Nicotine Dependence
Interventions
Electronic Cigarette, Tobacco Cigarette
Other
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 28, 2017 · Synced Oct 13, 2026, 9:41 PM EDT