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ClinicalTrials.gov public records Last synced Oct 24, 2026, 9:05 PM EDT

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Showing 1–24 of 42 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: High Nicotine Dose Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Varenicline and Combined NRT for Smoking Cessation

NCT02271919
View directory record Official record
Conditions
Cigarette Smoker, Tobacco Use Disorder
Interventions
Nicotine Lozenge, Nicotine Patch, Placebo, Tobacco Cessation Counseling, Varenicline
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
631 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 24, 2026, 9:05 PM EDT
Not listed Not applicable Interventional

Smoking Cessation for People Living With HIV/AIDS

NCT01965405
View directory record Official record
Conditions
HIV, AIDS, Nicotine Dependence
Interventions
Bupropion, Brief Counseling, High-magnitude prize contingency management, Monitored support to quit smoking, No additional treatment, Prize contingency management for abstinence, Low intensity prize contingency management
Drug · Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 80 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Oct 24, 2026, 9:05 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of Low and High Nicotine Tobacco Free Nicotine Pouches

NCT06678789
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Dependence, Smoking Cessation
Interventions
High Nicotine Dose, Low Nicotine Dose
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Phase 4 Interventional Results available

Counseling and Nicotine Replacement Therapy in Helping Adult Smokers Quit Smoking

NCT00365508
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 lozenge, nicotine patch
Drug
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years and older
Enrollment
642 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
10
States / cities
Washington D.C., District of Columbia • Miami Beach, Florida • Augusta, Georgia + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2016 · Synced Oct 24, 2026, 9:05 PM EDT
Active, not recruiting Not applicable Interventional

The Precision CAD Trial

NCT04755413
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Medical/Behavioral therapy, Standard of Care, Registry
Other
Lead sponsor
Emory University
Other
Eligibility
21 Years to 90 Years
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
5
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 21, 2025 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Metformin During Nicotine Withdrawal

NCT03593538
View directory record Official record
Conditions
Smoking, HIV-1-infection
Interventions
Metformin, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 24, 2026, 9:05 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

IV Nicotine Induced Changes in Hormone Function, Mood States and Behavior

NCT01589055
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Intravenous Nicotine
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Novel Determinants and Measures of Smokeless Tobacco Use: Study 2

NCT01067599
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
Low nicotine, Medium nicotine, High nicotine
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
2
States / cities
Minneapolis, Minnesota • Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 26, 2018 · Synced Oct 24, 2026, 9:05 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration

NCT05999383
View directory record Official record
Conditions
THC, Cannabis, Cannabis Use, Cannabis Smoking, Tobacco Use, Vaping
Interventions
Cannabis, Nicotine, Pax Loose Leaf Vaporizer, Placebo Marijuana
Drug · Device · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 24, 2026, 9:05 PM EDT
Terminated Phase 4 Interventional

Nicotine Patch for Nicotine Dependence in Individuals With Schizophrenia or Schizoaffective Disorder - 1

NCT00046813
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine patch
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
2
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 24, 2026, 9:05 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Smoked Nicotine Induced Changes in Hormone Function, Mood States and Behaviors

NCT01636323
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
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2016
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 15, 2013 · Synced Oct 24, 2026, 9:05 PM 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 11, 2017 · Synced Oct 24, 2026, 9:05 PM EDT
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 16, 2026 · Synced Oct 24, 2026, 9:05 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Product Characteristics on the Abuse Liability of Nicotine Pouches

NCT07165808
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Nicotine pouch: Low dose, Nicotine pouch: High dose, Low pH, High pH
Other
Lead sponsor
Emory University
Other
Eligibility
21 Years to 35 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 24, 2026, 9:05 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 24, 2026, 9:05 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 15, 2013 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Phase 1 Interventional

Targeting Orexin to Treat Nicotine Dependence

NCT03999099
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Suvorexant 20 mg, Suvorexant 10 mg, Placebo oral tablet
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 24, 2026, 9:05 PM 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 24, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Results available

A Study of the Effectiveness and Safety of Different Doses of Fluticasone Propionate Taken From a Dry Powder Inhaler (Puffer) in Adolescents and Adults Who Have Asthma That is Not Controlled by High Dose Inhaled Corticosteroid Asthma Medications

NCT01576718
View directory record Official record
Conditions
Asthma
Interventions
Fp MDPI, Placebo MDPI, Flovent Diskus, albuterol/salbutamol
Drug · Other
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
12 Years and older
Enrollment
889 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
148
States / cities
Birmingham, Alabama • Homewood, Alabama • Goodyear, Arizona + 114 more
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Oct 24, 2026, 9:05 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effects of Progesterone on IV Nicotine-Induced Changes in Hormones and Subjective Ratings of Stimulant Drug Effect

NCT01589081
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Intravenous Nicotine, Progesterone
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Results available

Evaluation of the Nicotine Lozenge in Relief of Provoked Acute Craving

NCT01466361
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Nicotine lower dose, Nicotine higher dose, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Burbank, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2019 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Not applicable Interventional Results available

Enhancing a High School Based Smoking Cessation Program

NCT01145001
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Cognitive Behavioural Therapy, Contingency Management, Nicotine Transdermal Patch
Behavioral · Drug
Lead sponsor
Yale University
Other
Eligibility
14 Years to 19 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 24, 2026, 9:05 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effect of Cannabis on E-Cigarette Use Behavior

NCT06609109
View directory record Official record
Conditions
Cannabis Use, Tobacco Use, Electronic Cigarette Use
Interventions
THC High Dose, THC Low Dose, THC 0mg, E-Cigarette Full Nicotine, E-Cigarette Placebo Nicotine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 24, 2026, 9:05 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Appeal of Nicotine Pouches Versus Cigarettes in the Ohio Appalachia Population

NCT05236894
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Cigarette Smoking, Nicotine Oral Pouch, Questionnaire Administration
Behavioral · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Oct 24, 2026, 9:05 PM EDT