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ClinicalTrials.gov public records Last synced Oct 14, 2026, 8:22 PM EDT

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Showing 433–456 of 807 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cessation, Tobacco Clear all
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 20, 2018 · Synced Oct 14, 2026, 8:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Leveraging Community Pharmacists to Optimize Smoking Cessation Services for Rural Smokers in Appalachia

NCT05660525
View directory record Official record
Conditions
Smoking Cessation, Smoking, Cigarette, Smoking Reduction, Smoking, Smoking, Tobacco, Quitting Smoking
Interventions
4 weeks of Nicotine lozenge, 8 weeks of Nicotine Replacement Therapy Patch, QuitAid, Smokefree TXT, Tobacco Quitline, 4 weeks of Nicotine Replacement Therapy Patch, 8 Weeks Nicotine Lozenge
Drug · Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
768 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 3 Interventional

A Trial to Test the Efficacy of a Tailored Intensive Smoking Cessation Intervention in Persons With HIV (PWHs)

NCT01106638
View directory record Official record
Conditions
Smoking, HIV Infections, AIDS
Interventions
Positively Smoke Free, Standard care
Behavioral
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 27, 2018 · Synced Oct 14, 2026, 8:22 PM EDT
Not yet recruiting Phase 4 Interventional

Smoking Cessation Medication And Rewards Using a Teamlet to Treat Tobacco Use Disorder (SMARTTT 2.0) Among Persons With HIV: A Multi-site Hybrid Type 2 Effectiveness-implementation Trial

NCT07835555
View directory record Official record
Conditions
Tobacco Use Disorder/Cigarette Smoking, HIV
Interventions
nicotine patch, nicotine gum, nicotine lozenge, varenicline, bupropion, Multi-target Contingency Management, Teamlet booster
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
794 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2031
U.S. locations
5
States / cities
Bridgeport, Connecticut • New Haven, Connecticut • Jersey City, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Cessation Screening Project

NCT04188873
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Preparation Varenicline and Standard Duration Varenicline, Preparation Varenicline and Extended Duration Varenicline, Standard Duration Varenicline, Extended Duration Varenicline, Preparation Combination NRT and Standard Duration Combination NRT, Preparation Combination NRT and Extended Duration Combination NRT, Standard Duration Combination NRT, Extended Duration Combination NRT, Intensive Counseling, Minimal Counseling
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
538 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 4 Interventional Results available

Evaluation of National Cancer Institute (NCI) Smoking Intervention Resources

NCT01342523
View directory record Official record
Conditions
Smoking Cessation, Smoking, Nicotine Dependence
Interventions
CIS - telephone cessation quitline counseling, Lozenge - nicotine mini-lozenges, Emails - Brief smoking prevention messages, Full website - standard smokefree.gov website content, Lite website - lite version of smokefree.gov, Full mailed booklet - NCI's detailed 36-page quit guide, brief mailed booklet - smaller version of NCI's booklet
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
1,034 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 14, 2015 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Optimizing Risk Messages for Waterpipe Tobacco Cessation in Young Adults

NCT03595280
View directory record Official record
Conditions
Hookah Smoking
Interventions
Hookah tobacco risk messages
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 30 Years
Enrollment
349 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 20, 2021 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Gradual vs. Abrupt Cessation Treatment for Smoking

NCT00297492
View directory record Official record
Conditions
Smoking Cessation
Interventions
Reduction Phone Counseling, Abrupt Phone Counseling, Minimal Abrupt Phone Counseling, Pre-Quit Nicotine Lozenges, Post-Quit Nicotine Lozenges
Behavioral · Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Sep 20, 2013 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 3 Interventional Results available

Smoking Cessation Versus Long-term Nicotine Replacement Among High-risk Smokers

NCT02148445
View directory record Official record
Conditions
Smoking, Pulmonary Disease, Chronic Obstructive, Tobacco Use Disorder
Interventions
Standard Smoking Cessation, Extended Nicotine Replacement Therapy, Nicotine replacement therapy
Other · Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Results available

Smoking Cessation in Menthol Flavored Cigarette Smokers

NCT02342327
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
switch to non-menthol cigarettes prior to cessation attempt, continue smoking menthol cigarettes prior to cessation attempt
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 64 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Results available

Financial Incentives for Homeless Smokers: A Community-based RCT

NCT04445662
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Financial incentives, Varenicline, Tobacco coaching
Behavioral · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Project CheckUP: A Brief Behavioral Intervention for Quitline Callers Who Use Marijuana (MJ) and Tobacco

NCT04737772
View directory record Official record
Conditions
Smoking Cessation, Marijuana Use
Interventions
Behavioral: Quitline treatment as usual, QL Marijuana Check-Up intervention (QL-MJCU)
Behavioral
Lead sponsor
Consumer Wellness Solutions
Industry
Eligibility
21 Years and older
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 27, 2025 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Development of a Mindfulness-Based Treatment for the Reduction of Alcohol Use and Smoking Cessation

NCT03734666
View directory record Official record
Conditions
Tobacco Use, Alcohol Use, Unspecified
Interventions
Mindfulness Based Relapse Prevention - Smoking and Alcohol, Cognitive Behavioral Therapy
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Smoking Cessation Study to Understand the Biological and Functional Changes After One Year of Smoking Cessation

NCT02432729
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Not listed
Lead sponsor
Philip Morris Products S.A.
Industry
Eligibility
30 Years to 65 Years
Enrollment
1,184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2023 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Results available

Implementation Science to Reduce the Disparity in Tobacco Treatment Among Individuals With Serious Mental Illness

NCT05952401
View directory record Official record
Conditions
Smoking, Smoking Cessation, Tobacco Use Cessation
Interventions
Usual Care, "Nudges"
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Results available

Integrated Treatment for Smoking Cessation & Anxiety in People With HIV

NCT01393301
View directory record Official record
Conditions
Nicotine Dependence, Symptoms of Anxiety, HIV
Interventions
Integrated cognitive-behavioral therapy for smoking cessation and anxiety, Control
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 3, 2023 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing the Efficacy of A Scalable, Telephone-Delivered, Guided Imagery Tobacco Cessation Intervention

NCT05277831
View directory record Official record
Conditions
Smoking Cessation, Smoking, Smoking Reduction, Smoking, Cigarette, Smoking (Tobacco) Addiction, Smoking Habit
Interventions
Guided Imagery Intervention, Standard Behavioral Control
Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
1,209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Oct 14, 2026, 8:22 PM 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 14, 2026, 8:22 PM EDT
Completed Phase 4 Interventional Results available

The END Perioperative Smoking Pilot Study

NCT02482233
View directory record Official record
Conditions
Smoking, Nicotine Addiction, Surgery
Interventions
ENDD (NJOY), NRT (NicoDerm CQ), telephone counseling, brief advice, brochure
Behavioral · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 9, 2022 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Preloading With Nicotine Replacement Therapy in HIV-positive Smokers to Improve Self-Efficacy and Quit Attempts

NCT04994444
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Nicoderm CQ 21Mg/24Hr Transdermal System
Drug
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 14, 2026, 8:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Novel Mobile Health Intervention for Improving Tobacco Cessation Among Young Adults

NCT07571018
View directory record Official record
Conditions
Tobacco-Related Carcinoma
Interventions
Smartphone app-based Intervention, Communication intervention, Survey Administration, Interview, Assessment
Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 30 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
2
States / cities
Las Cruces, New Mexico • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Behavioral Smoking Cessation Treatment - 1

NCT00110825
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cognitive Behavior Therapy
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
304 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 14, 2026, 8:22 PM EDT
Completed Not applicable Interventional

Tobacco Treatment Medical Education in 10 Medical Schools

NCT01905618
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking Cessation
Interventions
Web-based curriculum on tobacco dependence treatment, Tobacco Counseling Role Play, Preceptor Training and Teaching Medical Students, Booster Session
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
13
States / cities
Birmingham, Alabama • Stanford, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 14, 2026, 8:22 PM EDT
Terminated Not applicable Interventional

Incentives to Promote Smoking Cessation in Low SES Women

NCT03173274
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Brief Motivational Intervention, Contingency Management, Non-Contingent Reinforcement
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 4, 2019 · Synced Oct 14, 2026, 8:22 PM EDT