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ClinicalTrials.gov public records Last synced Oct 13, 2026, 11:41 AM EDT

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Showing 145–168 of 176 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo to Habitrol Clear all
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 19, 2021 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Bupropion Alone or Combined With Nicotine Gum

NCT01621022
View directory record Official record
Conditions
Tobacco Dependence
Interventions
bupropion + nicotine gum, Active bupropion-Placebo gum, Placebo bupropion-Placebo gum
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
608 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2002
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 4 Interventional Results available

Nicotine Replacement Therapy (NRT) and Bupropion Mechanisms of Effectiveness in Smokers

NCT01048944
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Bupropion SR, Nicotine Patch, Placebo Patch and Placebo Pill
Drug
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years to 55 Years
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
1
States / cities
Carbondale, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 25, 2014 · Synced Oct 13, 2026, 11:41 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Switching to E-cigarettes in Smokers Not Interested in Quitting

NCT05703672
View directory record Official record
Conditions
Smoking Reduction
Interventions
Varenicline Tartrate, Placebo, Electronic cigarette
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effects of Commonly Used Medications on Mood and Choice

NCT03652740
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Methylphenidate, Nicotine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 13, 2026, 11:41 AM EDT
Not listed Phase 1 Interventional

Nicotine Treatment of Mild Cognitive Impairment (MCI)

NCT00091468
View directory record Official record
Conditions
Age-Related Memory Disorders
Interventions
Transdermal nicotine patch, Placebo transdermal patch
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 90 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Durham, North Carolina • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 15, 2008 · Synced Oct 13, 2026, 11:41 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effects of Progesterone on IV Nicotine Induced Changes on BOLD fMRI Signal, Hormones and Subjective Ratings of Stimulant Drugs

NCT01589068
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Intravenous Nicotine, Progesterone
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Varenicline Effects on Cue Reactivity and Smoking Reward/Reinforcement

NCT00747643
View directory record Official record
Conditions
Tobacco Dependence
Interventions
varenicline, placebo
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
163 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Dec 16, 2013 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Not applicable Interventional Results available

Treatment for Nicotine Addiction in Women

NCT02448654
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Tolcapone, Sugar Pill
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 2 Interventional

A Multi-Center Study To Evaluate Multiple Doses of NT100 Following IVF In Women With Repeated IVF Failures (Thrive-IVF)

NCT01864356
View directory record Official record
Conditions
Repeated IVF Failure
Interventions
NT100, Placebo
Drug
Lead sponsor
Nora Therapeutics, Inc.
Industry
Eligibility
21 Years to 38 Years · Female only
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
21
States / cities
Encino, California • Newport Beach, California • Pasadena, California + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2014 · Synced Oct 13, 2026, 11:41 AM 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 13, 2026, 11:41 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 13, 2026, 11:41 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Effects of Combination Zonisamide and Bupropion on Switching to an Electronic Cigarette

NCT05205811
View directory record Official record
Conditions
Smoking Cessation
Interventions
Bupropion, Zonisamide, Placebo bupropion, Placebo zonisamide, E-cigarette
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Not applicable Interventional Results available

Nicotinic Enhancement of Cognitive Remediation Training in Schizophrenia

NCT02069392
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Cognitive remediation training, Nicotine polacrilex lozenge
Behavioral · Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Gender Differences in Switching From Smoking Regular Cigarettes to E-Cigarettes

NCT03856515
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Nicotine Replacement, Questionnaire Administration, Electronic Cigarette
Drug · Other · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years and older
Enrollment
169 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 13, 2026, 11:41 AM EDT
Not listed Phase 2 Interventional

Disease-modifying Potential of Transdermal NICotine in Early Parkinson's Disease

NCT01560754
View directory record Official record
Conditions
Parkinson's Disease
Interventions
nicotine transdermal patch
Drug
Lead sponsor
James BOYD MD
Other
Eligibility
30 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
9
States / cities
Los Angeles, California • Sunnyvale, California • Honolulu, Hawaii + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2015 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 2 Interventional Results available

Neural Substrates in Nicotine Withdrawal

NCT01001520
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Tolcapone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 2, 2014 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Enhancing Panic and Smoking Reduction Treatment With D-Cycloserine

NCT01944423
View directory record Official record
Conditions
Nicotine Addiction, Panic Attack
Interventions
d-cycloserine, Pill Placebo, Nicotine replacement therapy, Panic and Smoking Reduction Treatment
Drug · Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Progesterone and Brain Imaging Study

NCT01954966
View directory record Official record
Conditions
Nicotine Dependence, Nicotine Withdrawal
Interventions
Progesterone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 5, 2022 · Synced Oct 13, 2026, 11:41 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Electronic Cigarette Withdrawal Syndrome

NCT06066996
View directory record Official record
Conditions
E-cigarette Use, Withdrawal
Interventions
Transdermal Nicotine Patch, Placebo Nicotine Patch
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 13, 2026, 11:41 AM EDT
Withdrawn Phase 2 Interventional

Electronic Nicotine Delivery Systems as a Smoking Cessation Treatment

NCT02487953
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine patch, ENDS, Placebo patch, Placebo ENDS
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Early Phase 1 Interventional

Effects of Nicotine Replacement and Repeated Cue Exposure on Cigarette Craving

NCT01329614
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cue Extinction Training, Nicotine Replacement Therapy, Cue Extinction Therapy, Progressive Muscle Relaxation
Behavioral · Drug
Lead sponsor
Columbia University
Other
Eligibility
21 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 15, 2024 · Synced Oct 13, 2026, 11:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Vaping Nicotine on Cognition in Young Adults

NCT04901208
View directory record Official record
Conditions
Nicotine Addiction, Vaping
Interventions
Nicotine pod, Placebo pod
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 30 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 22, 2024 · Synced Oct 13, 2026, 11:41 AM EDT
Terminated Phase 2 Interventional Results available

Role of Proinflammatory Signaling in Alcohol Craving

NCT01631630
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Drinking, Stress, Alcohol-Related Disorders
Interventions
Pioglitazone, Placebo
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
21 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 9, 2017 · Synced Oct 13, 2026, 11:41 AM EDT