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ClinicalTrials.gov public records Last synced Oct 22, 2026, 4:17 PM EDT

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Showing 169–192 of 497 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Nicotine Addiction Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project 3, Study 2: Extended Exposure to Low Nicotine Content Cigarettes in People With Current Affective Disorders

NCT02232737
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 70 Years
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Providence, Rhode Island • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Results available

Addressing Psychological Risk Factors Underlying Smoking Persistence in COPD Patients: The Fresh Start Study

NCT04043728
View directory record Official record
Conditions
Copd, Smoking Cessation, Nicotine Dependence, Tobacco Use, Cigarette Smoking
Interventions
Unified Protocol adapted for smoking cessation
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 17, 2021 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 2 Interventional Results available

Effectiveness of GW468816, an NMDA Glycine Site Antagonist, for Prevention of Relapse to Smoking

NCT00218465
View directory record Official record
Conditions
Nicotine Dependence
Interventions
GW468816, Placebo Comparator: Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Belmont, Massachusetts • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2017 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 2 Interventional Results available

Enhancing Self Regulation Among Smokers

NCT04161144
View directory record Official record
Conditions
Smoking Cessation, Smoking, Cigarette, Nicotine Dependence
Interventions
sirolimus, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Oct 22, 2026, 4:17 PM EDT
Active, not recruiting Not applicable Interventional

Electronic Cigarettes and Reactivity to Smoking Cues

NCT01782599
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Dual nicotine patch and electronic cigarette
Other
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Oct 22, 2026, 4:17 PM 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 23, 2017 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Test-retest Reproducibility of [11C]PHNO PET Using the Constant Infusion Paradigm

NCT01699607
View directory record Official record
Conditions
Nicotine Dependence, Healthy
Interventions
Amphetamine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 6, 2020 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Memory Reconsolidation Blockade as a Novel Intervention for Nicotine Dependence

NCT00916721
View directory record Official record
Conditions
Smoking Cessation
Interventions
Propranolol, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
113 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 19, 2014 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of AAT Training in Smokers

NCT02481752
View directory record Official record
Conditions
Tobacco Use
Interventions
Approach Avoidance Training, SHAM Training
Other
Lead sponsor
Jasper A. Smits
Other
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 22, 2026, 4:17 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Control Systems Approach to Predicting Individualized Dynamics of Nicotine Cravings

NCT02643914
View directory record Official record
Conditions
Nicotine Addiction, Cigarette Smoking
Interventions
Nicotine, MR Compatible Nicotine Delivery Device
Drug · Device
Lead sponsor
Stony Brook University
Other
Eligibility
21 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Manipulating Tobacco Constituents in Female Menthol Smokers

NCT02048852
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Reduced Nicotine Content- Non Menthol, Reduced Nicotine Content- Menthol, Conventional Nicotine Content- Menthol, Conventional Nicotine Content- Non Menthol
Other
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
381 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
2
States / cities
Farmington, Connecticut • Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 19, 2021 · Synced Oct 22, 2026, 4:17 PM EDT
Recruiting Early Phase 1 Interventional

Addictive Threshold of Nicotine

NCT06096714
View directory record Official record
Conditions
Smoking Addiction
Interventions
Nicotine, Saline
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
21 Years to 59 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Translational Neuropsychopharmacology Research of Nicotine Addiction

NCT02723162
View directory record Official record
Conditions
Nicotine Dependence, Cigarettes
Interventions
Varenicline (VRN), N-Acetylcysteine (NAC), Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 55 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 3 Interventional

Smoking Cessation in Substance Abuse Treatment Patients: A Feasibility Study

NCT00408265
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Contingency Management
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older · Male only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 21, 2011 · Synced Oct 22, 2026, 4:17 PM 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 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Intervention to Reduce Tobacco Use in Pregnant Women

NCT02083081
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Community level intervention
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
352 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Bethel, Alaska
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 22, 2026, 4:17 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Vaping High vs. Low Nicotine E-Liquid

NCT04047836
View directory record Official record
Conditions
Cardiovascular Risk Factor, Nicotine Dependence
Interventions
Low Nicotine E-Liquid, Medium or High Nicotine E-Liquid
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 22, 2023 · Synced Oct 22, 2026, 4:17 PM 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 22, 2026, 4:17 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cue Induced Imaging in Nicotine Dependent Smokers

NCT00844701
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 60 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 1, 2012 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Abstinence From E-cigarettes Produce Withdrawal Symptoms?

NCT02825459
View directory record Official record
Conditions
Substance Withdrawal Syndrome
Interventions
Abstinence from e-cigarettes
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 20, 2018 · Synced Oct 22, 2026, 4:17 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 Oct 22, 2026, 4:17 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Biomarker Feedback to Motivate Cessation in Pregnancy

NCT02431611
View directory record Official record
Conditions
Nicotine Dependence, Pregnancy
Interventions
Biomarker feedback (phone based smoking cessation counseling), Control condition (phone based smoking cessation counseling)
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Dec 19, 2017 · Synced Oct 22, 2026, 4:17 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Low Nicotine Content Cigarettes in Vulnerable Populations: Affective Disorders

NCT04090879
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Either normal nicotine content cigarettes (15.8mg/g) or reduced nicotine content cigarettes (0.4mg/g), E-Cigarettes
Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 70 Years
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Providence, Rhode Island • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Oct 22, 2026, 4:17 PM EDT
Completed No phase listed Observational Results available

Evaluation of a Smoking Cessation Program for Long-Term Abstinence

NCT06746025
View directory record Official record
Conditions
Nicotine Addiction, Smoking Cessation
Interventions
Quit Center cessation program
Behavioral
Lead sponsor
Quit Center LLC
Industry
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Naples, Florida
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 22, 2026, 4:17 PM EDT