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ClinicalTrials.gov public records Last synced Oct 19, 2026, 8:20 PM EDT

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Showing 145–168 of 1,028 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Cigarettes Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Enhancing Panic and Smoking Reduction Treatment With D-Cycloserine

NCT01944423
View directory record Official record
Conditions
Nicotine Addiction, Panic Attack
Interventions
d-cycloserine, Pill Placebo, Nicotine replacement therapy, Panic and Smoking Reduction Treatment
Drug · Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Results available

Persistence Targeted Smoking Cessation in Serious Mental Illness (SMI)

NCT03873337
View directory record Official record
Conditions
Tobacco Use, Tobacco Smoking, Tobacco Use Cessation, Tobacco Use Disorder, Schizophrenia, Schizoaffective Disorder
Interventions
Persistence Targeted Smoking Cessation in SMI (PTSC-S), Nicotine patch
Behavioral · Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Oct 19, 2026, 8:20 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 10, 2014 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Phase 2 Interventional

Tobacco Quitlines:Adjunct to Dental Office Tobacco Intervention

NCT00384254
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
5 A, 3 A
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
18 Years and older
Enrollment
2,177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Oct 26, 2011 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Comparison Between Marijuana Smoked in Cigarette Paper Versus Cigar Paper

NCT00374127
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Marijuana blunt, marijuana cigarette
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 1, 2017 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Characterize Nicotine Pharmacokinetics and Subjective Effects of Nicotine Pouches in Adult Cigarette Smokers

NCT04846088
View directory record Official record
Conditions
Tobacco Use, Tobacco Smoking
Interventions
Product A, Product B, Product C, Product D, Product E, Product F, Product G, Product H, Product I
Other
Lead sponsor
British American Tobacco (Investments) Limited
Industry
Eligibility
22 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Oct 19, 2026, 8:20 PM EDT
Completed No phase listed Observational Results available

Brain Nicotine Receptor Density in Veteran Smokers

NCT01721473
View directory record Official record
Conditions
Positron Emission Tomography
Interventions
positron emission tomography scan
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
San Diego, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Identify Biomarkers of Tobacco Exposure and Nicotine Uptake From JUUL 5% in Adult Smokers

NCT03463837
View directory record Official record
Conditions
Nicotine Dependence, Other Tobacco Product, Tobacco Use, Smoking, Tobacco
Interventions
Treatment with JUUL 5%, Virginia Tobacco, Treatment with JUUL 5%, Cool Mint, ENDS, Treatment with JUUL 5%, Mango, ENDS, JUUL 5%, Creme Bruele, ENDS, Combustible cigarette, Smoking Cessation
Other
Lead sponsor
Juul Labs, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 21, 2021 · Synced Oct 19, 2026, 8:20 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 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional

Evaluation of e-Practice Self-Regulation (e-PS-R)

NCT03242447
View directory record Official record
Conditions
Teen Pregnancy Prevention
Interventions
e-Practice Self-Regulation, Video Health Group
Behavioral
Lead sponsor
The Policy & Research Group
Other
Eligibility
14 Years to 19 Years
Enrollment
631 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 9, 2022 · Synced Oct 19, 2026, 8:20 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)

NCT07167225
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, E-Cig Use
Interventions
Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment, E-cigarette dependence Scale, Nicotine dependence Scale, Co use practices QUestionnaire
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 25 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 19, 2026, 8:20 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of a Specific Substance in Smokers

NCT04281979
View directory record Official record
Conditions
Smoking
Interventions
Study Agent, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 19, 2026, 8:20 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Enhancing Smoking Cessation Via Telehealth Options in Primary Care

NCT05493254
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking cessation e-visit, Treatment As Usual
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
672 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 19, 2026, 8:20 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

5-HT2A Agonist Psilocybin in the Treatment of Tobacco Use Disorder

NCT05452772
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Psilocybin, Niacin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
3
States / cities
Birmingham, Alabama • Baltimore, Maryland • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Results available

Mindfulness-based Smoking Cessation Enhanced With Mobile Technology

NCT04965181
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Mindfulness-Based Addiction Treatment, Nicotine Replacement Therapy, Self-help materials, iQuit Mindfully
Behavioral · Drug
Lead sponsor
Georgia State University
Other
Eligibility
18 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 19, 2026, 8:20 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Social Media Use on Young Adults' E-Cigarette Use

NCT06142877
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
Social Media Use Reduction
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 25 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 19, 2026, 8:20 PM EDT
Terminated Phase 3 Interventional Results available

Management of Tobacco Treatment Intervention in Reducing Surgical Complications in Patients With Newly Diagnosed Lung Cancer Who Smoke Cigarettes

NCT02856581
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Varenicline, Placebo, Tobacco Cessation Counseling
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
374
States / cities
Fairbanks, Alaska • Kingman, Arizona • Jonesboro, Arkansas + 236 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimal TTM Tailoring for Population Cessation

NCT01544010
View directory record Official record
Conditions
Smoking Cessation
Interventions
Stage-Tailored Manual, Stage Tailored Feedback Report, Moderate TTM-Tailored Feedback Report, Full TTM-Tailored Feedback Report, Enhanced TTM+Addiction Tailored Feedback Report
Behavioral
Lead sponsor
University of Rhode Island
Other
Eligibility
18 Years and older
Enrollment
3,006 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Kingston, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional

Evaluation of Very Low Nicotine Content Cigarettes in Adolescent Smokers

NCT02587312
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Very low nicotine content cigarettes, Standard nicotine content cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
15 Years to 19 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 27, 2022 · Synced Oct 19, 2026, 8:20 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Studying Flavors and Cooling Agents in Oral Nicotine Pouches to Understand User Preferences

NCT07111234
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Carbon Monoxide Measurement, Nicotine Oral Pouch, Questionnaire Administration, Smoke usual brand cigarette
Procedure · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 19, 2026, 8:20 PM EDT
Enrolling by invitation Phase 4 Interventional

Piloting Novel Interventional Strategies to Improve Nicotine Pouches as a Substitute for Smoking

NCT07625956
View directory record Official record
Conditions
Smoking ( Cigarette)
Interventions
Nicotine replacement therapy patches, Oral nicotine pouches
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 19, 2026, 8:20 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Identifying Student Opinion Leaders to Lead E-cigarette Interventions

NCT04083469
View directory record Official record
Conditions
E-Cig Use, Adolescent Behavior
Interventions
Peer-Led Peer-Elected Intervention, Adult-Led Intervention, Peer-Led Non-Elected Intervention
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
Not listed
Enrollment
686 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Oct 19, 2026, 8:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sensory Perception of Sweet Flavors in E-Cigarette

NCT03332953
View directory record Official record
Conditions
Smoking
Interventions
E-cigarettes with varying concentrations of nicotine & flavor
Other
Lead sponsor
Oregon State University
Other
Eligibility
18 Years to 35 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 11, 2019 · Synced Oct 19, 2026, 8:20 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Adverse Airway Effects From Tobacco and E-Cigarettes

NCT03251053
View directory record Official record
Conditions
Airway Morbidity, Smoking Cessation, Nicotine Adverse Reaction, Smoking, Tobacco, Smoking, Cigarette
Interventions
Electronic cigarette use, Control regular cigarette smokers
Device · Other
Lead sponsor
Miami VA Healthcare System
Federal
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 16, 2017 · Synced Oct 19, 2026, 8:20 PM EDT