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ClinicalTrials.gov public records Last synced Oct 27, 2026, 10:42 PM EDT

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Showing 1225–1248 of 2,082 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoking Behavior Clear all
Completed No phase listed Observational Accepts healthy volunteers

Screening Protocol for Research Participants

NCT01010620
View directory record Official record
Conditions
Schizophrenia, Substance Abuse, Cocaine Abuse, Tobacco Use Disorder
Interventions
Various Screening psychiatric and medical assessments
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
523 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2019
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional

Proactive Population Health Strategy to Offer Tobacco Dependence Treatment to Smokers

NCT03612895
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
Internal Care Coordination, External Community Referral, Usual Care
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 2, 2018 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional

Looming Vulnerability and Smoking Cessation Attempts

NCT02522156
View directory record Official record
Conditions
Smoking Cessation
Interventions
Looming Vulnerability Induction, Control
Behavioral
Lead sponsor
American University
Other
Eligibility
18 Years and older
Enrollment
279 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2020 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Extended Facebook Intervention for Young Sexual and Gender Minority Smokers

NCT03553992
View directory record Official record
Conditions
Tobacco Use, Smoking, Tobacco Dependence, Tobacco Use Disorder, Tobacco Use Cessation, Tobacco Smoking, Smoking Cessation, Smoking, Cigarette, Smoking, Tobacco
Interventions
POP-6:, TSP-6:
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 25 Years
Enrollment
173 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Results available

Increasing Contingency Management Success in Smoking Cessation

NCT00273793
View directory record Official record
Conditions
Smoking
Interventions
Contingency Management
Behavioral
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
328 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2012 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional

Comparing Two Behavioral Approaches to Quitting Smoking in Mental Health Settings

NCT05030272
View directory record Official record
Conditions
Tobacco Use Disorder, Mental Illness, Recurring Major Depressive Disorder, Bipolar Disorder, Schizophrenia, Schizoaffective Disorder, Persistent Depressive Disorder
Interventions
Quit on the Go App (formerly "Learn to Quit " App), Brief advice, Nicotine patch, Smartphone coaching, Nicotine gum, Nicotine Lozenges
Device · Behavioral · Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
343 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
3
States / cities
Buffalo, New York • Durham, North Carolina • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing a Novel Smartphone Application for Smoking Cessation With the Oklahoma Helpline

NCT05539209
View directory record Official record
Conditions
Smoking Cessation
Interventions
OKquit, Standard Helpline Care
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
512 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 16, 2025 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of e-Cigarettes on Nicotine Withdrawal

NCT03098004
View directory record Official record
Conditions
Electronic Cigarettes
Interventions
e-Cigarette
Other
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201202: A Study to Assess Nicotine Uptake From Electronic Nicotine Delivery System P12

NCT05239884
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
ENDS Product A with 1.5% nicotine, ENDS Product B with 1.5% nicotine, ENDS Product C with 1.5% nicotine, ENDS Product D with 1.5% nicotine, ENDS Product E with 1.5% nicotine, ENDS Product F with 1.5% nicotine, ENDS Product G with 1.5% nicotine, ENDS Product H with 1.5% nicotine
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2022 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD190203: A Study to Determine Subject Puffing Patterns of an Electronic Nicotine Delivery System in an Ambulatory Setting

NCT04104152
View directory record Official record
Conditions
Smoking, Smoking Behaviors, Tobacco Use, Tobacco Smoking
Interventions
CSD1902-11, CSD1902-12, CSD1902-13, CSD1902-14, CSD1902-21, CSD1902-22, CSD1902-23, CSD1902-24
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201301: Study to Assess Elements of Abuse Liability for Four P13 Nicotine Pouches

NCT05294497
View directory record Official record
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
Product A, Product B, Product C, Product D, Product N, Product E
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Lexington, Kentucky • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tobacco Treatment Outreach to Reduce Disparities for Primary Care Populations

NCT01156610
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Tobacco Treatment
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
706 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 6, 2014 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Centanafadine SR as a Potential Smoking Cessation Treatment

NCT05066724
View directory record Official record
Conditions
Smoking Cessation
Interventions
Centanafadine
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tobacco-Related Disease Prevention Among Korean Americans

NCT02584127
View directory record Official record
Conditions
Smoking Cessation
Interventions
high reinforcement cessation program, low reinforcement cessation program
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years and older
Enrollment
405 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated May 13, 2016 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Motivating Quitline Use Among Smokers in Treatment for Substance Use Disorders

NCT01882673
View directory record Official record
Conditions
Smoking Cessation
Interventions
Brief Computer Motivational Interviewing for Smoking Cessation, Nutrition Control
Behavioral
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 20, 2016 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine in Tobacco Smokers

NCT03651869
View directory record Official record
Conditions
Smoking, Tobacco, Smoking (Tobacco) Addiction
Interventions
Cigarette 1, Cigarette 2, Patch 1, Patch 2
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Smartphone Based Smoking Cessation Intervention

NCT03740490
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smart-T + NRT, QuitGuide + NRT
Combination Product
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
454 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 17, 2025 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Social Media Influences on Perceptions of Alternative Nicotine and Nicotine-like Vaping Products Among Youth and Young Adults (AYA)

NCT07849790
View directory record Official record
Conditions
Vaping
Interventions
An image resembling a social media post
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
14 Years to 25 Years
Enrollment
2,829 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Supplemental Nicotine Administration for Smoking Cessation in Posttraumatic Stress Disorder (PTSD)

NCT01055886
View directory record Official record
Conditions
Smoking Cessation
Interventions
nicotine patch, placebo patch
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 6, 2015 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Does Switching to Nicotine Containing Electronic Cigarettes Reduce Health Risk Markers

NCT03625986
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Nicotine-Containing Electronic Cigarette, Non-Nicotine Electronic Cigarette
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 70 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Oct 27, 2026, 10:42 PM EDT
Terminated Phase 2 Interventional

Cholecalciferol Supplementation in Strengthening Inspiratory Muscles in Cholecalciferol-Deficient Patients With Chronic Obstructive Pulmonary Disease

NCT02877641
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Muscle Weakness
Interventions
Cholecalciferol, Laboratory Biomarker Analysis, Multivitamin, Placebo, Questionnaire Administration
Dietary Supplement · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
50 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 15, 2017 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Cigarette Pack Constituent Disclosures

NCT02785484
View directory record Official record
Conditions
Cigarette Smoking Behavior
Interventions
Label with constituent disclosure message, Label with litter message
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
21 Years and older
Enrollment
784 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Oct 27, 2026, 10:42 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers

NCT04722835
View directory record Official record
Conditions
Copd, Smoking, Tobacco Use
Interventions
Bronchoscopy with Bronchoalveolar Lavage (BAL)
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
3
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 27, 2026, 10:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing the Efficacy of Smoking Quit Line in the Military (AFIII Renewal)

NCT02201810
View directory record Official record
Conditions
Initial Efficacy of Quit Line, Efficacy of Secondary Reengagement Intervention
Interventions
Rate reduction intervention, Recycling Group, Choice Group, Proactive QL
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
614 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated May 26, 2022 · Synced Oct 27, 2026, 10:42 PM EDT