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ClinicalTrials.gov public records Last synced Oct 1, 2026, 8:06 AM EDT

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Showing 25–48 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Varenicline Pill Clear all
Completed Phase 2 Interventional Results available

Varenicline for Methamphetamine Dependence

NCT01365819
View directory record Official record
Conditions
Methamphetamine Dependence, Substance Abuse, Methamphetamine Abuse
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 18, 2018 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 1 Interventional

Varenicline as a Treatment for Methamphetamine Dependence

NCT01571167
View directory record Official record
Conditions
Methamphetamine Dependence, Methamphetamine Abuse, Substance Abuse
Interventions
Placebo, Varenicline
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 13, 2013 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Varenicline-Aided Cigarette Reduction in Smokers Not Ready to Quit

NCT01308736
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Varenicline, Placebo pill
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 64 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 17, 2017 · Synced Oct 1, 2026, 8:06 AM 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 1, 2026, 8:06 AM EDT
Completed Phase 1 Interventional Results available

An Assessment of the Safety of Varenicline in Methamphetamine-dependent Volunteers

NCT00713479
View directory record Official record
Conditions
Methamphetamine Addiction, Crystal Meth Addiction, Amphetamine Addiction
Interventions
Varenicline, then placebo, Placebo, then varenicline
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 1Phase 2 Interventional Results available

STARS (Smoking Treatment And Remote Sampling) Study

NCT04525755
View directory record Official record
Conditions
Smoking, Smoking Cessation, Tobacco Smoking, Cigarette Smoking
Interventions
Varenicline 0.5 MG, Nicotine Replacement Therapy (NRT)
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
652 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 1, 2026, 8:06 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

A Smoking Intervention Study Using Scheduled Gradual Reduction With Varenicline to Help With Cessation

NCT01772641
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Scheduled Gradual Reduction + Varenicline, Scheduled Gradual Reduction + Placebo Drug, Basic Advice + Varenicline, Basic Advice + Placebo Drug
Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Varenicline In-Patient Study

NCT01413516
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking cessation counseling, Placebo, Varenicline
Behavioral · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Not applicable Interventional Results available

Nicotine Withdrawal Symptoms and Smoking Relapse

NCT01511614
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Transcranial Direct Current Stimulation, sham, Nicotine patch, Placebo patch, Varenicline Pill, Placebo pill, Motivational Interviewing
Device · Drug · Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 31, 2024 · Synced Oct 1, 2026, 8:06 AM EDT
Terminated No phase listed Observational

Tobacco Dependence in Breast Cancer Patients Trial of Varenicline (Chantix)

NCT01532232
View directory record Official record
Conditions
Breast Cancer, Tobacco Dependence
Interventions
placebo, varenicline
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 23, 2015 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 2 Interventional Results available

UH3 Varenicline for Cannabis Use Disorder

NCT03980561
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Charleston, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Varenicline on Brain Activity During Nicotine Abstinence

NCT00602927
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 10, 2011 · Synced Oct 1, 2026, 8:06 AM EDT
Withdrawn Phase 4 Interventional

Effects of Varenicline in Heavy Drinking Smokers

NCT02488889
View directory record Official record
Conditions
Cigarette Smoking, Alcohol Consumption
Interventions
Varenicline, Placebo pill (for varenicline), Alcohol, placebo beverage (for alcohol)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 1, 2018 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Not applicable Interventional Results available

Efficacy of Varenicline in Methadone-Stabilized Cocaine Users

NCT00567320
View directory record Official record
Conditions
Cocaine Dependence, Nicotine Dependence
Interventions
Varenicline, Sugar pill or Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 2, 2020 · Synced Oct 1, 2026, 8:06 AM 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 1, 2026, 8:06 AM EDT
Not listed Not applicable Interventional

Stage Ib Trial of mSMART for Smoking Cessation Medication Adherence

NCT02635919
View directory record Official record
Conditions
Nicotine Dependence
Interventions
mSMART
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Varenicline Augmentation of Patch Outcomes in Heavy Drinkers' Smoking Cessation

NCT02859142
View directory record Official record
Conditions
Smoking Cessation, Alcohol Drinking
Interventions
Chantix, Behavioral Counseling Sessions, NicodermCQ, Placebo
Drug · Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 85 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 27, 2021 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 2 Interventional Results available

Varenicline vs Placebo for the Treatment of Methamphetamine Dependence

NCT01011829
View directory record Official record
Conditions
Methamphetamine Dependence, Substance Abuse, Methamphetamine Abuse
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 14, 2013 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 2 Interventional Results available

Varenicline Treatment of Alcohol Dependence in Smokers

NCT01553136
View directory record Official record
Conditions
Alcoholism, Alcohol Abuse, Smoking, Alcohol Drinking
Interventions
Varenicline
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
New Haven, Connecticut • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 6, 2020 · Synced Oct 1, 2026, 8:06 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

E-cigarette Cessation in Adults Who Co-use Cannabis

NCT06688539
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Use Disorder
Interventions
Varenicline Pill, Contingency management, Counseling
Drug · Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 40 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
3
States / cities
Charleston, South Carolina • Lancaster, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 1, 2026, 8:06 AM 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 1, 2026, 8:06 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effects of Chantix on Relapse Prevention for Smoking Cessation

NCT00948649
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Placebo, Varenicline
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2010 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 3 Interventional Results available

Extended Varenicline Treatment for Smoking Among Cancer Patients

NCT01756885
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Placebo, Smoking Cessation Counseling
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
2
States / cities
Chicago, Illinois • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 1, 2026, 8:06 AM EDT
Completed Phase 3 Interventional Results available

Pharmacogenetics of Nicotine Addiction Treatment

NCT01314001
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Varenicline, Placebo, Transdermal Nicotine
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
1,246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
3
States / cities
Buffalo, New York • Philadelphia, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Oct 1, 2026, 8:06 AM EDT