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ClinicalTrials.gov public records Last synced Oct 14, 2026, 3:51 PM EDT

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Showing 121–144 of 273 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: varenicline tartrate Clear all
Completed Not applicable Interventional Results available

Study of Mood Effects of Varenicline (Chantix) in Depressed Outpatient Smokers

NCT00525837
View directory record Official record
Conditions
Depressive Disorder, Smoking
Interventions
fixed dose varenicline, varenicline
Drug
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 28, 2018 · Synced Oct 14, 2026, 3:51 PM EDT
Recruiting Phase 2 Interventional

Reducing Falls With Varenicline in Hypocholinergic Parkinson Disease

NCT06679374
View directory record Official record
Conditions
Parkinson Disease
Interventions
Placebo, Varenicline
Drug
Lead sponsor
Vikas Kotagal
Other
Eligibility
45 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Varenicline in Ambivalent Smokers

NCT00595868
View directory record Official record
Conditions
Tobacco Use Disorder, Tobacco Use Cessation, Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
2
States / cities
Omaha, Nebraska • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 2, 2011 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Varenicline Treatment for Active Alcoholic Smokers

NCT01347112
View directory record Official record
Conditions
Smoking, Tobacco Dependence, Alcohol Dependence
Interventions
Varenicline, placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
2
States / cities
Rochester, Minnesota • La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 5, 2018 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional Results available

Health Systems Reach Interventions Project

NCT04199117
View directory record Official record
Conditions
Smoking, Cigarette, Smoking Cessation
Interventions
Varenicline, Combination nicotine patch and nicotine mini-lozenge treatment, Monetary incentives for initiating treatment, Automated tailored outreach, Care management, Wisconsin Tobacco Quit Line referral, Primary care provider referral, Untailored outreach, Multiple smoking cessation coaching calls
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Penn State TXT2Quit Study

NCT02367391
View directory record Official record
Conditions
Nicotine Dependence, Cigarettes
Interventions
Motivational Text Messages, Control
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years and older
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 15, 2017 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Not applicable Interventional

Contingency Management to Promote Smoking Cessation

NCT06456242
View directory record Official record
Conditions
Smoking Cessation
Interventions
CounsCM+MedCM (Health Rewards)
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional

Varenicline Treatment in Alcohol and Nicotine Dependent Patients With Schizophrenia

NCT00727103
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Alcohol Dependence, Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years to 69 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional Results available

Effectiveness of a Smoking Cessation Algorithm Integrated Into HIV Primary Care

NCT03670316
View directory record Official record
Conditions
HIV, AIDS, Smoking Cessation
Interventions
Algorithm Treatment, Quitline only
Drug · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Withdrawn Phase 2 Interventional

Assessing the Impact of Varenicline on Brain-Behavior Vulnerability

NCT00895557
View directory record Official record
Conditions
Varenicline and the Blunting of Cocaine Cues
Interventions
chantix
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 8, 2016 · Synced Oct 14, 2026, 3:51 PM EDT
Not yet recruiting Not applicable Interventional

Abstinence Reinforcement Therapy for Veterans Who Smoke Tobacco and Are Experiencing Homelessness

NCT07714200
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cognitive Behavioral Therapy for Smoking Cessation, Nicotine Replacement Therapy, Bupropion, Varenicline, Mobile Contingency Management, Clinic-Based Smoking Cessation Counseling
Behavioral · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Naltrexone and Varenicline: Weight Gain and Tolerability in Cigarette Smokers

NCT00502216
View directory record Official record
Conditions
Smoking, Nicotine Dependence
Interventions
Naltrexone, Varenicline
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Oct 14, 2026, 3:51 PM EDT
Recruiting Phase 4 Interventional

Nicotine Replacement Therapy, Counseling, Varenicline, and Bupropion for Smoking Cessation, the PISCES I Trial

NCT04604509
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Bupropion Hydrochloride Controlled-release, Nicotine Replacement, Questionnaire Administration, Tobacco Cessation Counseling, Varenicline
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2,010 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Tobacco Cessation in Public Housing

NCT04889638
View directory record Official record
Conditions
Smoking Cessation, Smoking Reduction, Smoking, Tobacco
Interventions
Cessation Intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 14, 2026, 3:51 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Human Behavioral Pharmacology Laboratory Study of Varenicline's Impact on Cocaine Reinforcement

NCT01143857
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Varenicline
Drug
Lead sponsor
Jennifer Plebani
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 16, 2013 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 2 Interventional Results available

Effects of Varenicline on Smoking Reminders

NCT01524627
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2017 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 3 Interventional

A Twelve-Week Study of Varenicline for Safety and Efficacy in Comparison With Placebo and Zyban for Smoking Cessation

NCT00143364
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
1,005 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
15
States / cities
Palo Alto, California • San Diego, California • Denver, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2007 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of the Effects of Mecamylamine and Varenicline in Schizophrenia

NCT00455650
View directory record Official record
Conditions
Cognition in Schizophrenia
Interventions
Mecamylamine, Varenicline, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 68 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Oct 14, 2026, 3:51 PM EDT
Recruiting Not applicable Interventional

Wellness Intervention for Smoking and HIV

NCT04725617
View directory record Official record
Conditions
HIV, Sleep, Smoking Cessation, Cardiovascular Diseases
Interventions
Varenicline, Smoking Cessation Counseling, Health Approach 1 to Reduce Smoking, Health Approach 2 to Reduce Smoking
Drug · Behavioral · Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 75 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
2
States / cities
Phoenix, Arizona • Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Study to Evaluate the Pharmacokinetics of Multiple Doses of Varenicline in Healthy Adolescent Smokers

NCT00463918
View directory record Official record
Conditions
Smoking Cessation
Interventions
varenicline
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years to 16 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
15
States / cities
Anniston, Alabama • Phoenix, Arizona • Hot Springs, Arkansas + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2008 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional Results available

Randomized Study Comparing the Efficacy and Safety of Varenicline Tartrate to Placebo in Smoking Cessation When Subjects Are Allowed to Set Their Own Quit Date

NCT00691483
View directory record Official record
Conditions
Smoking Cessation
Interventions
placebo, varenicline
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
659 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
12
States / cities
Litchfield Park, Arizona • Los Angeles, California • Santa Ana, California + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2015 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Varenicline for Light Smokers

NCT01639560
View directory record Official record
Conditions
Smoking
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 4 Interventional Results available

Tobacco Treatment Comparison for Cancer Care

NCT06218823
View directory record Official record
Conditions
Smoking Cessation, Cancer
Interventions
Transdermal Nicotine Patch, Standard Telephone Counseling, Varenicline, Cancer-Targeted Telephone Counseling, Mailed Information about Standard Care Resources
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Oct 14, 2026, 3:51 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Investigator Initiated Study to Assess the Efficacy of OC-01 (Varenicline) Nasal Spray on Signs and Symptoms of Dry Eye Disease Following Laser-assisted in Situ Keratomileusis (LASIK)

NCT05082974
View directory record Official record
Conditions
Dry Eye Disease
Interventions
OC-01 (varenicline 0.6mg/ml) nasal spray, Placebo (vehicle) nasal spray
Drug
Lead sponsor
Vance Thompson Vision ND
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
West Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Jun 12, 2023 · Synced Oct 14, 2026, 3:51 PM EDT