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ClinicalTrials.gov public records Last synced Oct 22, 2026, 8:08 PM EDT

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Showing 193–216 of 497 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Nicotine Addiction Clear all
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Concurrent PET D2/D3 Receptor Imaging and fMRI Smoking Cue Reactivity in Smokers

NCT01784016
View directory record Official record
Conditions
Nicotine Dependence, Smoking Cue Reactivity, Relapse to Smoking
Interventions
[11C]-PHNO
Radiation
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
3
States / cities
Belmont, Massachusetts • Boston, Massachusetts • Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 23, 2014 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 1Phase 2 Interventional

The Role of Nicotine and Non-Nicotine Alkaloids in E-Cigarette Use and Dependence

NCT02590393
View directory record Official record
Conditions
Nicotine Dependence
Interventions
E-cigarettes
Combination Product
Lead sponsor
Duke University
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Oct 22, 2026, 8:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effectiveness of Using Reduced Nicotine Cigarettes in Men and Women Smokers to Combat Nicotine Addiction

NCT00264342
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Use Disorder
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 23, 2013 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Measuring Smoking Behaviors While Using Varenicline

NCT00948155
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2014 · Synced Oct 22, 2026, 8:08 PM 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 22, 2026, 8:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smoking Cessation Behavioral Treatment Study

NCT03948893
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Mindfulness-Oriented Recovery Enhancement (MORE), Cognitive Behavioral Therapy (CBT)
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
2
States / cities
Columbia, Missouri • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 22, 2026, 8:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Multi-Modal Investigation of the Smoking Cessation Medication Varenicline: Dopaminergic Modulation of Reward Processing and Cognitive Control

NCT00830739
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Tailored Tobacco Quitline for Rural Veterans

NCT01592695
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Nicotine replacement therapy - transdermal nicotine patch, Tailored behavioral intervention, Tobacco quit line referral, Nicotine replacement therapy - nicotine gum, Nicotine replacement therapy - nicotine lozenge, Bupropion Sustained Release, Varenicline, Combination pharmacotherapy - transdermal nicotine patch + nicotine gum, Combination pharmacotherapy - transdermal nicotine patch + nicotine lozenge, Combination pharmacotherapy - transdermal nicotine patch + bupropion, Alcohol use risk reduction, Behavioral activation for the treatment of depression, Behavioral management of post-cessation weight gain
Drug · Behavioral
Lead sponsor
Iowa City Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 99 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 2, 2019 · Synced Oct 22, 2026, 8:08 PM 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 22, 2026, 8:08 PM EDT
Recruiting Not applicable Interventional

Effects of Novel E-cigarette Constituents on Adults TCORS 3.0

NCT05932745
View directory record Official record
Conditions
Nicotine Use Disorder
Interventions
E-liquid coolant (No WS-3) for non-menthol (1), E-liquid coolant (No WS-3) for low (0.1%) menthol (1), E-liquid coolant (No WS-3) for high (2.0%) menthol (1), E-liquid coolant (Low [0.1%] WS-3) for non-menthol (2), E-liquid coolant (Low [0.1%] WS-3) for low (0.1%) menthol (2), E-liquid coolant (Low [0.1%] WS-3) for high (2.0%) menthol (2), E-liquid coolant (High [2.0%] WS-3) for non-menthol (3), E-liquid coolant (High [2.0%] WS-3) for low (0.1%) menthol (3), E-liquid coolant (High [2.0%] WS-3) for high (2.0%) menthol (3), E-liquid coolant (Low [0.1%] WS-23) for non-menthol (4), E-liquid coolant (Low [0.1%] WS-23) for low (0.1%) menthol (4), E-liquid coolant (Low [0.1%] WS-23) for high (2.0%) menthol (4), E-liquid coolant (High [2.0%] WS-23) for non-menthol (5), E-liquid coolant (High [2.0%] WS-23) for low (0.1%) menthol (5), E-liquid coolant (High [2.0%] WS-23) for high (2.0%) menthol (5), E-liquid coolant (4% WS-23) for non-menthol (6), E-liquid coolant (4% WS-23) for low (0.1%) menthol (6), E-liquid coolant (4% WS-23) for high (2.0%) menthol (6)
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Early Phase 1 Interventional Results available

Pilot Study on Mindfulness for Tobacco and Alcohol in University Students

NCT01679236
View directory record Official record
Conditions
Nicotine Dependence, Alcohol Use
Interventions
Mindfulness Training for Smokers, Interactive Learning for Smokers
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 29 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 24, 2014 · Synced Oct 22, 2026, 8:08 PM EDT
Completed No phase listed Observational

Breath Carbon Monoxide and Cotinine as Biomarkers to Distinguish Smokers From Nonsmokers

NCT01031121
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 64 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 22, 2026, 8:08 PM EDT
Terminated Not applicable Interventional Results available

Accelerated rTMS for the Reduction of Nicotine Craving

NCT03352609
View directory record Official record
Conditions
Nicotine Use Disorder, Nicotine Dependence
Interventions
Active rTMS with MagVenture MagPro double blind rTMS system, Sham rTMS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Maintaining Nonsmoking

NCT01162239
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Initial Individual counseling, Check-ins with medical staff, Extended Individual Counseling - Health Model, Extended Individual Counseling - Relapse Prevention Model
Drug · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 2 Interventional

N-Acetylcysteine and Smoking Reduction

NCT00751257
View directory record Official record
Conditions
Nicotine Dependence
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2017 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 4 Interventional Results available

Novel Pharmacotherapy Approaches in Smokers With Serious Mental Illness

NCT04011280
View directory record Official record
Conditions
Bipolar Disorder, Schizophrenia, Schizoaffective Disorder, Nicotine Dependence
Interventions
Varenicline
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 70 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Genetic Differences in Limbic Activation Associated With Nicotine Withdrawal

NCT00664404
View directory record Official record
Conditions
Smoking
Interventions
Functional Magnetic Resonance Imaging (fMRI)
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 24, 2012 · Synced Oct 22, 2026, 8:08 PM 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 22, 2026, 8:08 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Acute Pharmacokinetic and Pharmacodynamic Effects of "Tobacco-Free" Oral Nicotine Pouches in Smokers

NCT05335915
View directory record Official record
Conditions
Nicotine Withdrawal, Nicotine Addiction, Drug Effect
Interventions
Nicotine, Cigarette
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Oct 22, 2026, 8:08 PM EDT
Withdrawn Phase 1 Interventional

Stage Ib Trial of mSMART With Varenicline

NCT03069768
View directory record Official record
Conditions
Nicotine Dependence
Interventions
mSMART, Chantix
Device · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2018 · Synced Oct 22, 2026, 8:08 PM EDT
Not listed Not applicable Interventional

Targeted Intervention for Bipolar Smokers

NCT01550029
View directory record Official record
Conditions
Nicotine Dependence, Bipolar Disorder
Interventions
Counseling/Healthy Lifestyle, Counseling/Managing Mood
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Oct 22, 2026, 8:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Imaging Extrastriatal Dopamine Release in Tobacco Smokers and Nonsmokers

NCT02348385
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Amphetamine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Oct 22, 2026, 8:08 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Message Priming and Enrollment in, and Response to, a Smoking Cessation Program: A Pilot Study

NCT00596882
View directory record Official record
Conditions
Smoking Cessation
Interventions
Message Prime
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2009 · Synced Oct 22, 2026, 8:08 PM 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 22, 2026, 8:08 PM EDT