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ClinicalTrials.gov public records Last synced Oct 1, 2026, 8:14 AM EDT

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Showing 73–96 of 1,263 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cessation of Smoking Clear all
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Electronic Quitline Referral With Enhanced Academic Detailing for the Promotion of Smoking Cessation

NCT04969978
View directory record Official record
Conditions
Tobacco-Related Carcinoma, Smoking &Amp; Tobacco Cessation
Interventions
Enhanced Academic Detailing, Informational Intervention
Behavioral · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
9,133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Not applicable Interventional

Intensive Referral to Reduce Smoking in Probationers

NCT03042650
View directory record Official record
Conditions
Smoking Cessation, Substance Use Disorder
Interventions
Intensive Referral Intervention Group, Standard Practice Facilitated Group
Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 29, 2023 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Does Moderate Intensity Exercise Help Prevent Smoking Relapse Among Women?

NCT00420160
View directory record Official record
Conditions
Lung Cancer, Heart Disease, COPD
Interventions
Smoking cessation treatment plus moderate intensity exercise, Smoking cessation treatment plus health education
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Not applicable Interventional Results available

Engaging Patients in Tobacco Cessation Resources in Dental Settings

NCT03656874
View directory record Official record
Conditions
Smoking
Interventions
Clinical Decision Support
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
3
States / cities
Indianapolis, Indiana • Bloomington, Minnesota • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 1, 2026, 8:14 AM EDT
Terminated Not applicable Interventional Results available

Analysis of Aldehyde Biomarkers of Exposure and Host Response

NCT00482690
View directory record Official record
Conditions
Smoking Cessation
Interventions
nicotine polacrilex, nicotine transdermal system, nicotine inhaler
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 3 Interventional

An Open Label Study That Compares Varenicline to Transdermal Nicotine Patch for Smoking Cessation

NCT00143325
View directory record Official record
Conditions
Smoking Cessation
Interventions
varenicline (CP-526,555)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
730 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
6
States / cities
Palo Alto, California • Santa Ana, California • Farmington, Connecticut + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2007 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Impact of Smoking Cessation on Sleep - 5

NCT00132821
View directory record Official record
Conditions
Tobacco Use Cessation, Sleep Disorders
Interventions
Bupropion, Transdermal Nicotine Patch, Placebo Bupropion, Placebo transdermal nicotine patch
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Menlo Park, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Effectiveness of Reducing Smoking in Facilitating Smoking Cessation in Adolescents - 2

NCT00158158
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
Usual Care, Smoking Reduction
Drug · Other
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
13 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Promoting Smoking Cessation in Carpenters

NCT01878214
View directory record Official record
Conditions
Smoking Cessation, Health Behavior, Cancer
Interventions
Targeted messaging, Standard messaging
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
442 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Not applicable Interventional

A Study of Tobacco Smoke and Children With Respiratory Illnesses

NCT03062709
View directory record Official record
Conditions
Bronchiolitis, Pneumonia, Reactive Airway Disease, Asthma, Tobacco Smoking, Tobacco Cessation, Bronchopulmonary Dysplasia
Interventions
Breathe Easy Coalition written materials, Maine Tobacco Helpline, Urine cotinine testing
Behavioral · Diagnostic Test
Lead sponsor
MaineHealth
Other
Eligibility
Up to 10 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Not applicable Interventional Results available

Testing the Integrated mHealth App Intervention "SiS-H"

NCT05886621
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smiling instead of Smoking - HIV, QuitGuide
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Oct 1, 2026, 8:14 AM EDT
Terminated Phase 2 Interventional

Helping Veterans Quit Smoking by Improving Their Sleep

NCT01267032
View directory record Official record
Conditions
Smoking
Interventions
Integrated Care, Cognitive-Behavioral Treatment for Insomnia, Desensitization Treatment for Insomnia
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 65 Years
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Treating Smokers With Mental Illness

NCT03822416
View directory record Official record
Conditions
Smoking Cessation, Cigarette Smoking, Schizophrenia, Psychotic Disorders, Major Depressive Disorder, Bipolar Disorder I, Bipolar II Disorder, Mental Illness
Interventions
Nicotine patch, Nicotine lozenge, Therapy, Information
Drug · Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 25, 2021 · Synced Oct 1, 2026, 8:14 AM EDT
Recruiting Not applicable Interventional

Metabolism-Informed Care to Aid Alaska Native People to Quit Smoking (QUIT)

NCT06556238
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Metabolite Ratio
Other
Lead sponsor
Southcentral Foundation
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 1, 2026, 8:14 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 21, 2024 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 4 Interventional Results available

Improving the Population-Wide Effectiveness of U.S. Tobacco Cessation Quitlines

NCT01087905
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Nicotine patch, Nicotine gum, CMAC
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
987 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Seattle, Washington • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 8, 2016 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Relapse Prevention With Varenicline

NCT00944554
View directory record Official record
Conditions
Recurrence, Smoking Cessation, Substance-Related Disorders
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Oct 1, 2026, 8:14 AM 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 1, 2026, 8:14 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Varenicline and Combined NRT for Smoking Cessation

NCT02271919
View directory record Official record
Conditions
Cigarette Smoker, Tobacco Use Disorder
Interventions
Nicotine Lozenge, Nicotine Patch, Placebo, Tobacco Cessation Counseling, Varenicline
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
631 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 1, 2026, 8:14 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Maintaining Nonsmoking: Older Smokers - 1

NCT00086385
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine polacrilex, Bupropion
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
50 Years and older
Enrollment
403 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 23, 2015 · Synced Oct 1, 2026, 8:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Tobacco Use Among Arab American Youth

NCT00059514
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Modified Project Toward No Tobacco Use
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
14 Years to 18 Years
Enrollment
2,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
Dearborn, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 5, 2017 · Synced Oct 1, 2026, 8:14 AM EDT
Completed No phase listed Observational

Physiological, Cognitive and Cerebral Activity Changes as a Function of Cigarette Smoking (With or Without Nicotine) and Tobacco Abstinence

NCT01034384
View directory record Official record
Conditions
Smoking Cessation
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 1, 2026, 8:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Helping Moms Who Smoke

NCT03104452
View directory record Official record
Conditions
Smoking Cessation
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Oct 1, 2026, 8:14 AM EDT
Active, not recruiting Not applicable Interventional

Acceptability of Mobile Applications (Apps) to Enhance Smoking Cessation in a Clinical Tobacco Treatment Program - A Pilot Study

NCT05038852
View directory record Official record
Conditions
Smoking Cessation, Tobacco
Interventions
smartphone applications
Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 1, 2026, 8:14 AM EDT