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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: placebo NRT Clear all
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Reward Sensitivity and Pharmacotherapy for Smoking Cessation

NCT02162849
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
Varenicline, Nicotine Patch, Placebo Patch, Placebo Tablet, Questionnaires, Counseling Sessions, Lab Session, Saliva Test
Drug · Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 28, 2026, 5:32 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Semaglutide for Post-Smoking Cessation Weight Management

NCT06173778
View directory record Official record
Conditions
Obesity, Overweight, Cigarette Smoking
Interventions
semaglutide 2.4mg, Placebo, Nicotine Replacement Therapy (NRT, nicotine patch), Brief Smoking Cessation Counseling
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
197 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Austin, Texas • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 20, 2026 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 4 Interventional Results available

Progesterone Augmentation of Nicotine Replacement Therapy Study

NCT02685072
View directory record Official record
Conditions
Smoking Cessation
Interventions
Progesterone (200 mgs BID), Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Sep 28, 2026, 5:32 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 24, 2014 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Examining the Effect of the Nicotine Patch in Male and Female Smokers - 3

NCT00390559
View directory record Official record
Conditions
Drug Addiction, Smoking Cessation
Interventions
Nicotine transdermal system, Nicotine containing cigarette, Placebo cigarette
Drug · Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 17, 2012 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Impact of Smoking Cessation and γ-Tocopherol to Restore Vascular Endothelial Function

NCT01314443
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Nicotine Replacement Therapy (NRT), Gamma-Tocopherol, Placebo, Smoking cessation
Other · Dietary Supplement · Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 60 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 20, 2015 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study To Evaluate Cardiac Assessments Following Different Treatments Of Smoking Cessation Medications In Subjects With And Without Psychiatric Disorders.

NCT01574703
View directory record Official record
Conditions
Smoking Cessation
Interventions
placebo, varenicline tartrate, bupropion hydrochloride, Nicotine Replacement Therapy Patch
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
4,595 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
65
States / cities
Mobile, Alabama • Encino, California • Escondido, California + 54 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Attention Deficit Hyperactivity Disorder (ADHD) Smoking Cessation Study

NCT00736255
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Nicotine Dependence
Interventions
Transdermal Nicotine Patch, Lis-dexamphetamine (Vyvanse), Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 29, 2018 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 2 Interventional Results available

Effectiveness of GSK598809, a Selective D3 Antagonist, Added to CBT and NRT for Smoking Cessation and Relapse Prevention

NCT01188967
View directory record Official record
Conditions
Nicotine Dependence
Interventions
GSK598809, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Smoking Relapse Prevention in Schizophrenia

NCT00320697
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Smokers
Interventions
bupropion + nicotine patch + nicotine gum or lozenges, Placebo pill + placebo patch
Drug
Lead sponsor
North Suffolk Mental Health Association
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Sep 28, 2026, 5:32 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 18, 2021 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Safety and Effectiveness of Sustained Release Bupropion in Treating Individuals With Schizophrenia Who Smoke

NCT00307203
View directory record Official record
Conditions
Tobacco-Use Disorder, Schizophrenia, Psychotic Disorders
Interventions
bupropion SR, Cognitive Behavioral Group Therapy, nicotine replacement therapy
Drug · Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Exenatide for Smoking Cessation and Prevention of Weight Gain

NCT05610800
View directory record Official record
Conditions
Smoking Cessation, Weight Gain
Interventions
Exenatide 2 milligram (mg) Injection, Placebo, Nicotine patch, Smoking Cessation Counseling
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 28, 2026, 5:32 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Effects of Nicotine Replacement Therapy and D-cycloserine on Nicotine Treatment Seekers

NCT01907594
View directory record Official record
Conditions
Cigarette Smoking
Interventions
D-cycloserine, Nicotine Replacement Therapy (patch), Smoking Cue Exposure, Progressive Muscle Relaxation, Placebo
Drug · Behavioral
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 3 Interventional Results available

Telephone Counseling and the Distribution of Nicotine Patches to Smokers

NCT00851357
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Patch, Telephone Counseling, Placebo, Self-Help Materials
Drug · Behavioral · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
4,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Exenatide Once Weekly for Smoking Cessation

NCT02975297
View directory record Official record
Conditions
Smoking Cessation
Interventions
Exenatide, NRT, Counseling, Placebo
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Sep 28, 2026, 5:32 AM EDT
Terminated Phase 2 Interventional

Nicotine Replacement Treatment for Pregnant Smokers - 1

NCT00115687
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
placebo, 2 mg nicotine polacrilex
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
16 Years to 50 Years · Female only
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
4
States / cities
Farmington, Connecticut • Hartford, Connecticut • New Britain, Connecticut + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nicotine Dependence, Withdrawal and Replacement Therapy Assessed by PET Imaging

NCT01664741
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine patch - transdermal, placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 60 Years
Enrollment
127 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Not applicable Interventional Results available

Varenicline or Nicotine Patch and Nicotine Gum in Helping Smokers in a Methadone Treatment Program Stop Smoking

NCT00790569
View directory record Official record
Conditions
Bladder Cancer, Cervical Cancer, Esophageal Cancer, Gastric Cancer, Head and Neck Cancer, Kidney Cancer, Leukemia, Liver Cancer, Lung Cancer, Pancreatic Cancer, Tobacco Use Disorder
Interventions
nicotine, varenicline, placebo
Drug · Other
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 120 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jun 5, 2018 · Synced Sep 28, 2026, 5:32 AM 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 11, 2017 · Synced Sep 28, 2026, 5:32 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 27, 2026 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Combining Modafinil and Nicotine Replacement Therapy in Treating Nicotine Dependent Adolescents

NCT00258479
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
ModafinilNicotine Replacement Therapy, Modafinil
Drug
Lead sponsor
Catherine Martin, MD
Other
Eligibility
16 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2011
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Sep 28, 2026, 5:32 AM EDT
Terminated Phase 3 Interventional Results available

Study to Determine if a New Nicotine Replacement Therapy Can Safely Help Smokers to Quit Smoking

NCT01296698
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Placebo, Nicotine
Drug
Lead sponsor
McNeil Consumer Healthcare Division of McNEIL-PPC, Inc.
Industry
Eligibility
18 Years and older
Enrollment
257 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
19
States / cities
Muscle Shoals, Alabama • Oceanside, California • Griffin, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2012 · Synced Sep 28, 2026, 5:32 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Maintenance Treatment for Abstinent Smokers

NCT00063323
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 75 Years
Enrollment
589 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 28, 2026, 5:32 AM EDT