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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Smoking Cessation Clear all
Completed Phase 4 Interventional

The Long-Term Quitting (Smoking Cessation) Study

NCT02564315
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Mini-Lozenge for 11 Months, Preparation Phase Behavioral Reduction Counseling, Preparation Phase Recycling Counseling, Preparation Phase Control Treatment, Cessation Phase Supportive Counseling, Cessation Phase Skill Training Counseling, Cessation Phase Brief Information, Cessation Phase Nicotine Patch + Nicotine Mini-Lozenge
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
1,154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 16, 2020 · Synced Sep 25, 2026, 1:29 AM EDT
Recruiting Not applicable Interventional

Feasibility and Acceptability Trial to Reduce Tobacco and Cannabis Use During Pregnancy and Postpartum

NCT07489443
View directory record Official record
Conditions
Perinatal, Cannabis Use, Tobacco Use, Smoking Cessation
Interventions
Perinatal smoking cessation treatment and maintenance sessions
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Abstinence From E-cigarettes Produce Withdrawal Symptoms?

NCT02825459
View directory record Official record
Conditions
Substance Withdrawal Syndrome
Interventions
Abstinence from e-cigarettes
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pro-Change Smoking Cessation Intervention

NCT02299076
View directory record Official record
Conditions
Tobacco Smoking Cessation, Motivation
Interventions
Behavioral economics incentives, Minimal incentives
Behavioral · Other
Lead sponsor
VAL Health, LLC
Industry
Eligibility
18 Years and older
Enrollment
422 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Old Greenwich, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 1, 2017 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 2 Interventional Results available

Combining Varenicline and Naltrexone for Smoking Cessation

NCT02698215
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Use Disorder
Interventions
Varenicline, Varenicline plus Naltrexone
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Development of a mHealth Intervention for Ambivalent Smokers

NCT04560868
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking Cessation, Motivation, Behavior, Smoking
Interventions
Control mHealth program, Experimental mHealth program, Nicotine patch
Device · Drug
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 22, 2023 · Synced Sep 25, 2026, 1:29 AM EDT
Withdrawn Phase 1 Interventional

Stage Ib Trial of mSMART With Varenicline

NCT03069768
View directory record Official record
Conditions
Nicotine Dependence
Interventions
mSMART, Chantix
Device · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 25, 2026, 1:29 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Quitxt Mobile Text Messaging Cessation Research Study

NCT05958667
View directory record Official record
Conditions
Smoking Cessation
Interventions
Quitxt text messaging or Chat, Usual care
Behavioral · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 29 Years
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effectiveness of Various Smoking Cessation Therapies in Reducing Smoking in Adolescents - 1

NCT00158171
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
Nicotine Replacement Therapies, Nicotine patch, Folic Acid
Drug · Dietary Supplement
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
13 Years to 18 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Sep 25, 2026, 1:29 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measurement of Cancer-Related Risk Perception in Smokers

NCT00588211
View directory record Official record
Conditions
Cancer Related-Risks, Risk Perception, Survey, Focus Group
Interventions
Interviews, focus group, Survey
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,514 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2022
U.S. locations
4
States / cities
Jamaica, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 1 Interventional

Combinations of Pharmacologic Smoking Cessation Treatments

NCT00018187
View directory record Official record
Conditions
Smoking
Interventions
Bupropion, Mecamylamine, Nicotine Patch
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
20 Years to 40 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 20, 2009 · Synced Sep 25, 2026, 1:29 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

QuitAdvisorMD: A Point-of-care Tool for Brief Smoking Cessation Interventions

NCT01065493
View directory record Official record
Conditions
Smoking, Tobacco Use Disorder
Interventions
QuitAdvisorMD Software Algorithm, Standard Smoking Cessation Counseling
Other · Behavioral
Lead sponsor
Silverchair Science & Communications, LLC
Industry
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 18, 2014 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Not applicable Interventional Results available

Integrating Tobacco Treatment Into Cancer Care: A Randomized Controlled Comparative Effectiveness Trial

NCT01871506
View directory record Official record
Conditions
Smoking Cessation
Interventions
Standard Care (SC), Intensive Counseling (IC)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
303 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
3
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 25, 2026, 1:29 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Persistent Poverty Counties Pregnant Women With Medicaid

NCT05415371
View directory record Official record
Conditions
Tobacco Cessation, Tobacco Use, Tobacco Smoking, Smoking Cessation Financial Incentives, Socioeconomic Status, Contingency Management, Pregnancy
Interventions
Standard Care + Financial Incentives, Standard Care
Behavioral · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 105 Years · Female only
Enrollment
100 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 1, 2024 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 2 Interventional Results available

Adaptive Pharmacotherapy for Smoking Cessation

NCT02501265
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline Standard Protocol, Nicotine Patch Standard Protocol, Varenicline Adaptive Protocol, Nicotine Adaptive Protocol
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 18, 2021 · Synced Sep 25, 2026, 1:29 AM EDT
Not listed Not applicable Interventional

Smoking Cessation Intervention for American Indian Women Experiencing Intimate Partner Violence

NCT06357767
View directory record Official record
Conditions
Smoking Cessation, Cigarette Smoking
Interventions
Healing Within: Smoking Cessation Intervention for American Indian Women Experiencing Intimate Partner Violence
Behavioral
Lead sponsor
Black Hills Center for American Indian Health
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rapid City, South Dakota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2024 · Synced Sep 25, 2026, 1:29 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

VergeRx for Smokers Not Ready to Quit

NCT07693660
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
VergeRx, SmokefreeTXT, NRT Lozenge (Combination), Extended NRT Patch (16 weeks), Standard NRT Patch (8 weeks)
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
592 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2032
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 4 Interventional

Smartphone-delivered Automated Video-assisted Smoking Treatment for Patrons of a Food Resource Center

NCT03060278
View directory record Official record
Conditions
Smoking Cessation
Interventions
Self-help materials, nicotine patch, Smartphone-delivered automated treatment, Counseling
Behavioral · Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Real Time fMRI and Quitting Smoking

NCT03302026
View directory record Official record
Conditions
Nicotine Use Disorder
Interventions
Realtime biofeedback using fMRI
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PROS Brief Smoking Cessation Counseling in Pediatric Practice to Reduce Secondhand Smoke Exposure of Young Children

NCT00135213
View directory record Official record
Conditions
Health Care Quality, Access, and Evaluation, Smoking Cessation
Interventions
training in smoking cessation
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 2, 2008 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Not applicable Interventional

Cultural Adaptation and Piloting of a Smoking Cessation Intervention for Smokers With HIV

NCT03580460
View directory record Official record
Conditions
Hiv, Cigarette Smoking
Interventions
Computer delivered smoking cessation counseling
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 25, 2019 · Synced Sep 25, 2026, 1:29 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Smoking Cessation Program: A Quality Improvement Trial in a Resident-Based Outpatient Clinic

NCT00436943
View directory record Official record
Conditions
Smoking
Interventions
nicotine replacement therapy and bupropion, smoking cessation counseling and referrals
Drug · Behavioral
Lead sponsor
Atlantic Health System
Other
Eligibility
21 Years and older
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Morristown, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 11, 2010 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Extended Treatment for Smoking Cessation

NCT01330043
View directory record Official record
Conditions
Smoking Cessation
Interventions
Bupropion, Nicotine patch, Varenicline
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
223 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Sep 25, 2026, 1:29 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Impact of Smoking Cessation and γ-Tocopherol to Restore Vascular Endothelial Function

NCT01314443
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Nicotine Replacement Therapy (NRT), Gamma-Tocopherol, Placebo, Smoking cessation
Other · Dietary Supplement · Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 60 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 20, 2015 · Synced Sep 25, 2026, 1:29 AM EDT