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Showing 1–24 of 269 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Nicotine (2 mg) Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Longitudinal Studies of HIV-Associated Lung Infections and Complications (Lung HIV)

NCT00933595
View directory record Official record
Conditions
Pulmonary Complications, HIV Infections
Interventions
Smoking Cessation
Other
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 31, 2016 · Synced Sep 22, 2026, 10:04 PM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Health Literacy and Smoking Cessation in Low-SES Diverse Smokers - Project HALT II

NCT02942212
View directory record Official record
Conditions
Smoking Cessation
Interventions
Questionnaire, In-Depth Interviews, Breath Test, Nicotine Patches, Advice plus Phone Counseling, Advice plus Counseling Sessions, Self Assessment Questionnaires
Behavioral · Other · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
25 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 30, 2019 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 4 Interventional

Motivation Project: Testing Intervention Components for the Smoker Who is Unwilling to Quit

NCT02354872
View directory record Official record
Conditions
Smoking, Motivation, Smoking Cessation
Interventions
Nicotine Mini-Lozenge, Behavioral Reduction Counseling, 5Rs Motivation Counseling, Behavioral Activation Counseling, No Treatment
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
577 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 21, 2020 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Nicotine Plasma Concentrations and Subjective Effects for Three Menthol Electronic Cigarettes vs Combustible Menthol Cigarettes and Nicotine Gum

NCT02664012
View directory record Official record
Conditions
Smoking
Interventions
Own Brand Menthol Cigarette, Electronic Menthol Cigarette #1, Electronic Menthol Cigarette #2, Electronic Menthol Cigarette #3, Leading U.S. Nicotine Gum
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 3, 2018 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project Impact 2: A Culturally Tailored Smoking Cessation Intervention for Latino Smokers

NCT02596711
View directory record Official record
Conditions
Tobacco Use Cessation, Cancer Prevention
Interventions
Nicotine Patch, Questionnaires, Carbon Monoxide (CO) Test, Health Education and Handouts, Culturally Tailored Reading Materials, Counseling Sessions
Drug · Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project 1, Study 2: Extended Exposure to Low Nicotine Content Cigarettes in Childbearing Age Women

NCT02250534
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pilot Study to Evaluate the Safety and Efficacy of Ariva® Silver Wintergreen in Reducing Cigarette Craving in Smokers

NCT01337830
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
Ariva® Silver Wintergreen, Silver Wintergreen
Other
Lead sponsor
Star Scientific, Inc
Industry
Eligibility
23 Years to 72 Years
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Martinsburg, West Virginia
Source: ClinicalTrials.gov public record
Updated Oct 23, 2014 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Integrating Financial Coaching and Smoking Cessation Coaching

NCT05154669
View directory record Official record
Conditions
Smoking
Interventions
Financial counseling, Nicotine Replacement Therapy Agent - Patches, Nicotine Replacement Therapy Agent - Lozenges, Nicotine Replacement Therapy Agent - Gum
Other · Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
602 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Nicotine Receptor Density & Response to Nicotine Patch

NCT01526005
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Transdermal Nicotine Patch, Transdermal Placebo Patch
Drug
Lead sponsor
Brentwood Biomedical Research Institute
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 26, 2015 · Synced Sep 22, 2026, 10:04 PM EDT
Terminated Phase 4 Interventional Results available

Varenicline For Nicotine Vaping Cessation In Non Smoker Vaper Adolescents

NCT04602494
View directory record Official record
Conditions
Vaping, Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 25 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 2 Interventional Results available

Cognitive Behavioral Therapy and the Nicotine Transdermal Patch for Cannabis Dependence and Nicotine Dependence

NCT01292642
View directory record Official record
Conditions
Cannabis Dependence, Nicotine Dependence
Interventions
Cognitive Behavioral Therapy, Nicotine Replacement Therapy
Behavioral · Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2013 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Engaging Sexual and Gender Minority Cigarette Smokers Into Social Media-based Treatment

NCT04461288
View directory record Official record
Conditions
Smoking Cessation, Nicotine Dependence, Tobacco Use, Cigarette Smoking
Interventions
Social media-based education, counseling, and support, Nicotine replacement therapies (NRT), Gamification
Behavioral · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 20, 2022 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 2 Interventional Results available

Behavioral Activation Intervention for Smoking Cessation in Smokers With Depressive Symptoms

NCT01199380
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Standard Treatment, Behavioral Activation Treatment for Smoking, Transdermal Nicotine Patch
Behavioral · Drug
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 65 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Sep 22, 2026, 10:04 PM 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 22, 2026, 10:04 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Multiple Cigarette Induced Changes in Hormone Function, Mood States and Behavior

NCT01636310
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine
Other
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2016
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 14, 2013 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Investigation of Novel Methods to Reduce Children's Secondhand Smoke Exposure

NCT01935713
View directory record Official record
Conditions
Secondhand Smoke
Interventions
Nicotine polacrilex, Electronic Cigarette, Dissolvable Tobacco Lozenge
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 65 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 2 Interventional

Combined Nortriptyline and Transdermal Nicotine for Smoking Cessation

NCT00018148
View directory record Official record
Conditions
Smoking
Interventions
nortriptyline, transdermal nicotine
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 70 Years
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 14, 2010 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Health Effects of SLT, Cigarette Smoking, and New Tobacco Products

NCT00469079
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine gum and lozenge, Taboka, Camel Snus
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Varenicline and Bupropion for Smoking Cessation

NCT00935818
View directory record Official record
Conditions
Smoking
Interventions
Varenicline, placebo, bupropion SR
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
506 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
3
States / cities
Minneapolis, Minnesota • Rochester, Minnesota • La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 8, 2014 · Synced Sep 22, 2026, 10:04 PM EDT
Not yet recruiting Phase 1 Interventional

Impact of Sweeteners on the Addictive Threshold of Nicotine

NCT07771725
View directory record Official record
Conditions
Smoking ( Cigarette)
Interventions
Nicotine 0.05 mg/pulse and 0.1 mg/pulse, Saline Placebo (0.5mL injection), sucralose, Sugar syrup (Placebo)
Drug · Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
21 Years to 59 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Cigarette Harm Reduction With Electronic Cigarette Use

NCT03473483
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Toxicity, Nicotine Dependence, Cigarettes, Cardiovascular Risk Factor, Nicotine Withdrawal
Interventions
SREC
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2022 · Synced Sep 22, 2026, 10:04 PM EDT
Not yet recruiting Not applicable Interventional

Quit-Smoking Study for Native Hawaiians

NCT07075575
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking Cessation
Interventions
Nicotine Polacrilex Gum (2 mg), Cognitive Behavioral Group Therapy (CBGT)
Drug · Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years to 80 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Not yet recruiting Phase 4 Interventional

Evaluation of Dependence and Nicotine Replacement Therapy-Supported Cessation Efforts Among Regular Electronic Cigarette Use

NCT07786896
View directory record Official record
Conditions
E Cigarette Use, Cessation, Tobacco, Cessation, Nicotine
Interventions
Nicotine Replacement Therapies, Brief Behavioral Counseling
Drug · Behavioral
Lead sponsor
West Virginia University
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Greenville, North Carolina • Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Bioequivalence Study of Two Nicotine Lozenges in Fasting Conditions in Healthy Smokers

NCT03541044
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine Prototype Mini lozenge, Nicorette Mini Lozenge
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 55 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Sep 22, 2026, 10:04 PM EDT