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ClinicalTrials.gov public records Last synced Sep 30, 2026, 5:09 PM EDT

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Showing 49–72 of 1,263 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cessation of Smoking Clear all
Completed Phase 1Phase 2 Interventional Results available

Zonisamide Augmentation of Varenicline Treatment for Smoking Cessation

NCT01685996
View directory record Official record
Conditions
Nicotine Dependence
Interventions
zonisamide, placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 24, 2018 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Results available

Menominee Stop Tobacco Abuse Renew Tradition Study

NCT01083654
View directory record Official record
Conditions
Smoking
Interventions
Standard Treatment Counseling, Culturally-Tailored Treatment
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Keshena, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 17, 2016 · Synced Sep 30, 2026, 5:09 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Clinical Response to Biomarker Documentation of Child Secondhand Smoke Exposure

NCT01145729
View directory record Official record
Conditions
Biomarker Feedback, Smoking Cessation, Secondhand Smoke Exposure, Provider Behavior
Interventions
Biomarker Feedback
Behavioral
Lead sponsor
National Institutes of Health (NIH)
NIH
Eligibility
12 Months to 36 Months
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 17, 2010 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional

Effectiveness of an Integrated Treatment to Address Smoking Cessation and Anxiety/ Depression in People Living With HIV

NCT03904186
View directory record Official record
Conditions
Human Immunodeficiency Virus, Smoking Cessation, Smoking, Cigarette, Smoking, Anxiety, Depression, Nicotine Dependence
Interventions
QUIT, Time-Matched Control (TM)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 79 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Early Phase 1 Interventional Results available

Hollings Cancer Center Varenicline Sampling Study

NCT03742154
View directory record Official record
Conditions
Smoking, Smoking Cessation, Smoking, Tobacco, Smoking, Cigarette
Interventions
Varenicline 0.5 MG
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 28, 2020 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 3 Interventional Results available

A Second Study of Cytisinicline for Smoking Cessation in Adult Smokers

NCT05206370
View directory record Official record
Conditions
Smoking Cessation
Interventions
Cytisinicline, Placebo, Behavioral support
Drug · Behavioral
Lead sponsor
Achieve Life Sciences
Industry
Eligibility
18 Years and older
Enrollment
792 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
12
States / cities
DeLand, Florida • Fort Myers, Florida • Jacksonville, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 30, 2026, 5:09 PM EDT
Completed No phase listed Observational

Nicotinic Receptor Levels After Stopping Smoking

NCT01704573
View directory record Official record
Conditions
Nicotine Addiction
Interventions
2-[18F]-fluro-3-[2(S)-2-azethidinylmethoxy]-pyridine
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 16, 2017 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 4 Interventional

A Randomized Trial to Implement the AHCPR Smoking Cessation Guideline

NCT00013013
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Systems Support
Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2001
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 7, 2015 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility of a Decision Aid for E-Cigarettes in Primary Care

NCT03836573
View directory record Official record
Conditions
Smoking, Cigarette, Smoking Cessation
Interventions
Smoking Cessation iPad Decision Aid Tool
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 22, 2019 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Assess the Safety, Tolerability and Pharmacokinetics of AZD4041 in Healthy Volunteers

NCT04076540
View directory record Official record
Conditions
Smoking Cessation
Interventions
AZD4041, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
2
States / cities
Las Vegas, Nevada • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 17, 2024 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility and Acceptability of a Text Messaging Intervention to Increase Smoking Cessation in Vietnam

NCT03219541
View directory record Official record
Conditions
Smoking
Interventions
Interventional Automated mobile phone text, Control Automated mobile phone text
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years and older
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 17, 2020 · Synced Sep 30, 2026, 5:09 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Rural Smoking Cessation

NCT06584929
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicoderm CQ nicotine patch, Nicorette Nicotine Lozenges
Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
544 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Provider and Peer Delivered Youth Smoking Intervention

NCT00435344
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Pediatric Practice-Based Smoking Intervention
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
13 Years to 17 Years
Enrollment
2,711 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 14, 2007 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Embedding Comprehensive Smoking Cessation Programs Into Community Clinics

NCT04717544
View directory record Official record
Conditions
Smoking Cessation
Interventions
Intervention Arm
Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 3 Interventional

NicVAX/Placebo as an Aid for Smoking Cessation

NCT00836199
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco Cessation
Interventions
NicVAX vaccine, Placebo vaccine
Biological
Lead sponsor
Nabi Biopharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
22
States / cities
Tucson, Arizona • Los Angeles, California • Newport Beach, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 9, 2012 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

E-Cigarettes and Financial Incentives to Promote Tobacco Harm Reduction Among Adults Accessing Shelter Services

NCT03743532
View directory record Official record
Conditions
Cigarette Smoking
Interventions
E-cigarette Switching, Financial Incentives
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years to 100 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 21, 2025 · Synced Sep 30, 2026, 5:09 PM EDT
Not yet recruiting Not applicable Interventional

LLM Intervention for Tobacco in Underserved Populations (LIFT-UP)

NCT07620301
View directory record Official record
Conditions
Smoking Cessation
Interventions
LIFT-UP Chatbot
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PROS Smokebusters: Adolescent Smoking Cessation in Pediatric Primary Care

NCT00135265
View directory record Official record
Conditions
Health Care Quality, Access, and Evaluation, Smoking Cessation
Interventions
smoking cessation, practice change
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
14 Years and older
Enrollment
4,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 28, 2010 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smoking, Stress, and Mobile Technology

NCT04838236
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
MASP app + NRT, QuitGuide app + NRT
Other
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
227 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
Oklahoma City, Oklahoma • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Sep 30, 2026, 5:09 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Airway, Blood and/or Urine Specimens From Subjects for Research Studies

NCT01776398
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Idiopathic Pulmonary Fibrosis (IPF), Rheumatoid Arthritis-Associated Interstitial Lung Disease, Scleroderma-Associated Interstitial Lung Disease (SSC-ILD)
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 2 Interventional Results available

Varenicline for Treatment of E-cigarette Dependence

NCT05541497
View directory record Official record
Conditions
Smoking Cessation
Interventions
Varenicline Tartrate, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 2, 2024 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional

Novel Treatment to Enhance Smoking Cessation Before Cancer Surgery

NCT02402023
View directory record Official record
Conditions
Smoking Cessation
Interventions
Contingency Management (CM), Standard of Care (SC)
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
New Haven, Connecticut • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Maintaining Abstinence in Chronic Cigarette Smokers - 1

NCT00087880
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion and NRT
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
407 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Sep 30, 2026, 5:09 PM EDT
Completed Not applicable Interventional Results available

Smoking Cessation After Hospitalization for a Cardiopulmonary Illness

NCT01791803
View directory record Official record
Conditions
Smoking Cessation
Interventions
hypnotherapy, Nicotine
Behavioral · Drug
Lead sponsor
North Shore Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Salem, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 19, 2017 · Synced Sep 30, 2026, 5:09 PM EDT