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ClinicalTrials.gov public records Last synced Oct 17, 2026, 11:55 AM EDT

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Showing 1–24 of 189 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Quitline Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Interventions to Help More Low-income Smokers Quit

NCT04311983
View directory record Official record
Conditions
Tobacco Use Cessation, Smoking Behaviors, Health Disparity
Interventions
Tobacco Quitline, Smoke Free Home
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years and older
Enrollment
1,973 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 10, 2024 · Synced Oct 17, 2026, 11:55 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Treating Adults at Risk for Weight Gain With Interactive Technology

NCT01199185
View directory record Official record
Conditions
Smoking, Body Weight
Interventions
Smoking Cessation, Smoking Cessation plus Weight Loss
Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years to 35 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Results available

Study Two on the Effectiveness of Mindfulness Training for Smokers

NCT01299909
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Integrated Training for Smokers, Mindfulness Training for Smokers, Quitline
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 27, 2019 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interventions for Smoking Among Persons in Recovery

NCT00714896
View directory record Official record
Conditions
Smoking Cessation
Interventions
Stepped-Care, Control
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Walnut Creek, California
Source: ClinicalTrials.gov public record
Updated May 29, 2013 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional

Smoking Relapse-Prevention Intervention for Cancer Patients

NCT01630161
View directory record Official record
Conditions
Smoking Cessation
Interventions
Usual Care, Smoking Relapse Prevention for Cancer Patients (SRP-CaP)
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
441 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 17, 2021 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Results available

Efficacy of a Smoke-Free Homes Intervention

NCT04547686
View directory record Official record
Conditions
Cessation, Smoking
Interventions
Smoke-Free Homes Intervention, Quitline
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
916 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Active, not recruiting Not applicable Interventional

Financial Incentives for Smoking Treatment II

NCT03979885
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Cessation
Interventions
Smoking cessation counseling (Quitline), Smoking cessation pharmacotherapy (e.g, nicotine replacement therapy), Financial incentives for smoking cessation, Financial incentives for use of evidence-based smoking cessation therapies
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
1,058 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Los Angeles, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional

Refer2Quit: Evaluating a Proactive, Tailored, Population Health Approach for Tobacco Treatment for Household Smokers Through a Pediatric Care Network

NCT06582693
View directory record Official record
Conditions
Smoking, Smoking Cessation, Second Hand Tobacco Smoke
Interventions
Refer2Quit
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Community-based Smoking Cessation Treatment for Adults With High Stress Sensitivity.

NCT06053567
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Aerobic Exercise, Counseling, Nicotine patch
Behavioral · Drug
Lead sponsor
Jasper A. Smits
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Beyond the Lung Cancer Diagnosis: Leveraging the Oncology Clinic Setting for Actively Smoking Family Members

NCT03966807
View directory record Official record
Conditions
Lung Cancer
Interventions
Digital-based support, Traditional-based support + Nicotine replacement therapy (NRT)
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Oct 17, 2026, 11:55 AM 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 17, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional

Contingency Management for Veteran Smokers Undergoing Major Elective Surgery

NCT06678672
View directory record Official record
Conditions
Tobacco Use Disorder, Substance Use Disorder (SUD)
Interventions
Contingency Management (CM), Treatment as Usual (TAU)
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving the Reach & Effectiveness of Smoking Cessation Services Targeted to Veterans Living With HIV

NCT04505371
View directory record Official record
Conditions
HIV Infections, Smoking, Smoking Cessation
Interventions
Wellness Intervention for Smokers with HIV
Behavioral
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
235 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Completed No phase listed Observational

Tobacco-Focused Patient Navigation to Address Barriers to Utilization of Community-Based Smoking Cessation Services in Primary Care

NCT01678118
View directory record Official record
Conditions
Minority Smokers
Interventions
Patient Navigator
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Creating Smokefree Living Together for Chinese Household Pairs

NCT01592682
View directory record Official record
Conditions
Smoking, Smoke Exposure
Interventions
Smokefree counseling
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 17, 2026, 11:55 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Smoking Cessation Intervention During Low Dose CT (LDCT) Screening for Lung Cancer

NCT03059940
View directory record Official record
Conditions
Smoking Cessation
Interventions
Questionnaires, Low Dose Computed Tomography Scan, Shared Decision Making + Video, Cessation Counseling, Quitline, Pharmacotherapy Discussion, Nicotine Patch, Anti-Smoking Drug, Tobacco Treatment Program, Carbon Monoxide (CO) Level Test
Behavioral · Procedure · Other + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
50 Years and older
Enrollment
630 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Not yet recruiting Not applicable Interventional

Contingency Management to Promote Smoking Cessation: A Pilot Randomized Clinical Trial

NCT07685899
View directory record Official record
Conditions
Smoking Cessation
Interventions
Health Rewards, Control
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional

Direct to Smoker Outreach in a Health Care Setting

NCT01321944
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Direct to Smoker Outreach Program
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
590 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Revere, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2011 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Combined Treatment for Tobacco and Alcohol Use in Puerto Rico

NCT00570804
View directory record Official record
Conditions
Smoking
Interventions
Telephone Counseling, Telephone Assessments
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
370 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2021 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nicotine Patch as an Adjunctive Intervention to Reduce Secondhand Smoke Among NICU Families

NCT04045964
View directory record Official record
Conditions
Environmental Tobacco Smoke, Smoking Cessation
Interventions
nicotine replacement therapy (NRT), motivational advice, Quitline referral
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Not listed
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dentistry United to Extinguish Tobacco

NCT01615237
View directory record Official record
Conditions
Tobacco Use Treatment
Interventions
Audit and performance feedback (PF), Financial Incentive (P4P), Current Best Practices (CBP)
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
3,207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 15, 2019 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Efficacy and Cost of State Quitline Policies

NCT00366977
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Cessation, Cost-effectiveness
Interventions
Multi-session telephone counseling, NRT patches
Behavioral · Drug
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
4,614 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2005
U.S. locations
3
States / cities
Portland, Oregon • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 2, 2011 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Phase 3 Interventional Results available

Providing Free Nicotine Patches to Quitline Smokers

NCT01736085
View directory record Official record
Conditions
Smoking Cessation
Interventions
Telephone counseling, Voucher, Nicotine patches
Behavioral · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
3,706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Oct 17, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of Biomarkers in Children to Help Parents Quit Tobacco

NCT04832659
View directory record Official record
Conditions
Tobacco Dependence
Interventions
CEASE, CEASE + BIO
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
865 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 17, 2026, 11:55 AM EDT