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Showing 1–24 of 786 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Smoking, Cigarette Clear all
Recruiting Phase 2Phase 3 Interventional Accepts healthy volunteers

Dissolved Phase HXe-129 MRI: A Novel Biomarker to Quantify Pulmonary Pathology

NCT06856525
View directory record Official record
Conditions
Electronic Cigarette Related Lung Damage
Interventions
Hyperpolarized xenon 129, Cardiopulmonary Stress Test, Pulmonary Function Test, Chest CT
Drug · Diagnostic Test
Lead sponsor
Y. Michael Shim, MD
Other
Eligibility
18 Years to 35 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2032
U.S. locations
2
States / cities
Durham, North Carolina • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Very Low Nicotine Content Cigarettes in a Complex Marketplace

NCT03272685
View directory record Official record
Conditions
Tobacco Smoking, Nicotine Dependence
Interventions
Very Low Nicotine Content Cigarettes, Normal Nicotine Content Cigarettes
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
799 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
6
States / cities
San Francisco, California • Minneapolis, Minnesota • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Electronic Cigarette Flavors on Abuse Liability in Smokers (P3-Taste)

NCT05971823
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
Tobacco product administration and assessment
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 2 Interventional Results available

Free Samples for Health

NCT05627596
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Ask-Advise-Refer, Nicotine Patch, 14 Mg/24 Hr Transdermal Film, Extended Release, Nicotine lozenge
Behavioral · Drug
Lead sponsor
Sandra Japuntich
Other
Eligibility
18 Years and older
Enrollment
1,239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional

Effectiveness of an Enhanced Tobacco Intervention Protocol Compared to Standard Treatment in Helping Head and Neck and Lung Cancer Patients Starting Treatment to Reduce Cigarette Use

NCT04694846
View directory record Official record
Conditions
Lung Non-Small Cell Carcinoma, Head and Neck Squamous Cell Carcinoma
Interventions
Nicotine Replacement, Bupropion Hydrochloride Controlled-release, Varenicline, Tobacco Cessation Counseling, Questionnaire Administration, Quality of Life Assessment, Best Practice
Drug · Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 8, 2026, 8:37 AM 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 20, 2024 · Synced Sep 8, 2026, 8:37 AM 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 5, 2025 · Synced Sep 8, 2026, 8:37 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 Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Practicing Self-Control Lowers the Risk of Smoking Lapse

NCT00349687
View directory record Official record
Conditions
Behavior, Addictive, Cigarette Smoking
Interventions
self-control practice
Behavioral
Lead sponsor
University at Albany
Other
Eligibility
18 Years to 45 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated May 9, 2023 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Nicotine Delivery, Subjective Effects, and Sensory Experiences of Tobacco Users Using Oral Nicotine Products and Electronic Cigarettes [ZYN Study]

NCT05030194
View directory record Official record
Conditions
Tobacco Use, Tobacco Smoking, Cigarette Smoking, Smokeless Tobacco Cessation
Interventions
Electronic Cigarette, Oral Nicotine Pouch
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced Sep 8, 2026, 8:37 AM EDT
Recruiting Not applicable Interventional

Optimizing Tobacco Treatment Delivery for People Living With HIV

NCT05019495
View directory record Official record
Conditions
Hiv, Smoking, Cigarette
Interventions
PrOMOTE
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

GeoScan and Remote Geo Smoking Study: Neural and Behavioral Correlates of Smokers' Exposure to Retail Environments

NCT04279483
View directory record Official record
Conditions
Smoking, Tobacco, Smoking, Smoking, Cigarette
Interventions
Tobacco retailer, Non-tobacco retailer
Behavioral
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years to 65 Years
Enrollment
343 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 13, 2025 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Low Nicotine Content Cigarettes in Vulnerable Populations: Opioid Use Disorder

NCT04092101
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cigarettes with varying nicotine content, E-Cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
21 Years to 70 Years
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Responses to Message Source and Presentation Using Psychophysiology

NCT06269003
View directory record Official record
Conditions
Vaping
Interventions
Expert, one-sided, Expert, two-sided, Peer, one-sided, Peer, two-sided
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 24 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 31, 2025 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional

Novel Approaches to Reducing Tobacco Related Harm

NCT02600273
View directory record Official record
Conditions
Smoking, Tobacco Smoking Behavior, Cigarette Smoking
Interventions
Usual brand cigarettes, Lower nicotine content cigarettes, Electronic cigarettes 1, Electronic cigarettes 2
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 29, 2020 · Synced Sep 8, 2026, 8:37 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Maternal Smoking Cessation and Pediatric Obesity Prevention

NCT03514602
View directory record Official record
Conditions
Childhood Obesity, Smoking, Cigarette, Pregnancy
Interventions
Multicomponent behavioral intervention, Education only control
Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

An Evaluation of the Tobacco Prevention Toolkit Healthy Futures: Alternative-to-Suspension Vaping Intervention

NCT06483412
View directory record Official record
Conditions
Tobacco Use Cessation, Addiction
Interventions
Healthy Futures: Alternative-to-Suspension Curriculum
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
14 Years to 18 Years
Enrollment
2,540 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 2 Interventional Results available

CAN-DOSE Study: Cessation With Augmented Nicotine for Dual Use Of Smoking and E-cigarettes

NCT06087328
View directory record Official record
Conditions
Smoking Cessation, Electronic Cigarette Use, Cigarette Smoking
Interventions
Regular Nicotine patch and lozenge dose, Augmented Nicotine patch and lozenge dose
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Cognitive Behavioral Stress Intervention for Women Who Smoke

NCT03077945
View directory record Official record
Conditions
Smoking, Cigarette, Smoking Cessation, Stress, Stress, Emotional, Stress Reaction
Interventions
heart rate variability biofeedback and cognitive reappraisal, control tasks
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Enhancing Smoking Cessation in the Homeless Population

NCT01932996
View directory record Official record
Conditions
Cigarette Smoking, Tobacco Smoking, Smoking, Tobacco
Interventions
nicotine patch plus nicotine gum/lozenge, Intensive Alcohol Intervention
Drug · Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
352 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Varenicline-Aided Cigarette Reduction in Smokers Not Ready to Quit

NCT01308736
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Varenicline, Placebo pill
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 64 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 16, 2017 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 2 Interventional Results available

A Study of Cytisinicline for Vaping Cessation in Adult Smokers

NCT05431387
View directory record Official record
Conditions
Vaping, E-Cig Use
Interventions
cytisinicline, Placebo, Behavioral support
Drug · Behavioral
Lead sponsor
Achieve Life Sciences
Industry
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
5
States / cities
Lexington, Kentucky • Boston, Massachusetts • Rochester, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Not applicable Interventional Results available

Smoking Cessation for Smokers With Sleep Problems

NCT01277887
View directory record Official record
Conditions
Nicotine Dependence, Cigarette Smoking, Insomnia
Interventions
Cognitive-Behavioral Counseling, Smoking Cessation Counseling
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 20, 2017 · Synced Sep 8, 2026, 8:37 AM EDT
Completed Phase 2 Interventional

Nicotinic Receptor Augmentation of SSRI Antidepressants

NCT00319319
View directory record Official record
Conditions
Depressive Disorder
Interventions
Mecamylamine hydrochloride (Inversine)
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 18, 2007 · Synced Sep 8, 2026, 8:37 AM EDT