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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: High nicotine Clear all
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 20, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Results available

Evaluation of the Aevidum Curriculum and Club

NCT05018689
View directory record Official record
Conditions
Mental Health Wellness 1
Interventions
Aevidum curriculum, Club
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
13 Years to 21 Years
Enrollment
2,557 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1 Interventional Results available

Effects of E-Cigarette Flavors on Adults TCORS 2.0

NCT03635333
View directory record Official record
Conditions
Nicotine Use Disorder
Interventions
Nicotine, Flavor
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 50 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effect of Cannabis on Cigarette Use Behavior

NCT06609083
View directory record Official record
Conditions
Cannabis Use, Tobacco Use, Cigarette Smoking
Interventions
THC 30mg, THC 5mg, THC 0mg, Cigarette Full Nicotine, Cigarette Reduced 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 Jan 15, 2026 · Synced Sep 22, 2026, 10:04 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 16, 2024 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Behind the Wheel (BTW) Smartphone Application

NCT05554614
View directory record Official record
Conditions
High-risk Driving Events
Interventions
BTW app with reward-based feedback, BTW app with situational supervised driving practice, Sham BTW app
Behavioral
Lead sponsor
Motao Zhu
Other
Eligibility
15 Years to 17 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating a Telephone-Based Smoking Cessation Program Among People in the Military (The AFIII Study)

NCT00632411
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Nicotine Patch, Tobacco Quit Line Program
Drug · Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
1,298 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
2
States / cities
Memphis, Tennessee • Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 3 Interventional Results available

Smoking Cessation Versus Long-term Nicotine Replacement Among High-risk Smokers

NCT02148445
View directory record Official record
Conditions
Smoking, Pulmonary Disease, Chronic Obstructive, Tobacco Use Disorder
Interventions
Standard Smoking Cessation, Extended Nicotine Replacement Therapy, Nicotine replacement therapy
Other · Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Sep 22, 2026, 10:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Digitally Enhanced Smoking Cessation for High Risk Smokers

NCT04691297
View directory record Official record
Conditions
Smoking, Smoking Cessation, Lung Cancer Screening, Smoking, Tobacco, Smoking Behaviors
Interventions
Escape, Standard Care
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
55 Years to 77 Years
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Psilocybin-facilitated Smoking Cessation Treatment: A Pilot Study

NCT01943994
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Psilocybin-assisted treatment, Nicotine Replacement Therapy (NRT)
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 65 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 4 Interventional Results available

The END Perioperative Smoking Pilot Study

NCT02482233
View directory record Official record
Conditions
Smoking, Nicotine Addiction, Surgery
Interventions
ENDD (NJOY), NRT (NicoDerm CQ), telephone counseling, brief advice, brochure
Behavioral · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Contingency Management, Quitting Smoking, and ADHD

NCT02266784
View directory record Official record
Conditions
Cigarette Smoking, Smoking Cessation
Interventions
Contingency Management (CM), Transdermal nicotine skin patches (i.e. Habitrol), Supportive Counseling
Behavioral · Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 22, 2026, 10:04 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 20, 2025 · Synced Sep 22, 2026, 10:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Switching to Reduced Oxidant or Nicotine Content Cigarettes in Smokers

NCT02415270
View directory record Official record
Conditions
Tobacco Smoking Behavior
Interventions
Reduced Nicotine Cigarettes, Reduced ROS/RNS, Control
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 26, 2018 · Synced Sep 22, 2026, 10:04 PM EDT
Active, not recruiting Not applicable Interventional

Preventing Disordered Eating and Body Dissatisfaction Among High-risk Pregnant Individuals

NCT06659354
View directory record Official record
Conditions
Eating Disorders, Body Dissatisfaction
Interventions
Pregnant Body Project (PBP), Pregnancy Health Education (PHE)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Not applicable Interventional

Improving Mental Health Treatment for Individuals in Crisis Interacting With the Criminal-Legal System

NCT06564948
View directory record Official record
Conditions
Suicide Risk, Psychiatric Disorders
Interventions
Treatment as usual (TAU), FSJS, FSJS+Navigator Intervention
Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years to 100 Years
Enrollment
1,040 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Community-based Smoking Cessation Treatment for Adults With High Stress Sensitivity.

NCT06053567
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Aerobic Exercise, Counseling, Nicotine patch
Behavioral · Drug
Lead sponsor
Jasper A. Smits
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Not yet recruiting Phase 2 Interventional

DOSE-UP: Dose Optimization for Smoking and E-Cigarette Use Pharmacotherapy

NCT07754578
View directory record Official record
Conditions
Dual Use of Cigarettes and E-cigarettes
Interventions
Text- and web-based support, Nicotine Replacement Therapy (NRT, nicotine patch), Nicotine replacement therapy lozenge
Behavioral · Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
321 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 22, 2026, 10:04 PM 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 22, 2026, 10:04 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Assessment of High Dose Transdermal Nicotine for Fast Metabolizers of Nicotine

NCT00956943
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicoderm CQ transdermal nicotine, placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 45 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 14, 2014 · Synced Sep 22, 2026, 10:04 PM EDT
Terminated Phase 1 Interventional

Early Tobacco Abstinence - 5

NCT00224965
View directory record Official record
Conditions
Tobacco Use
Interventions
Behavior Therapy
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 22, 2026, 10:04 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Using Smartwatches to Monitor Smoking in Real-life Situations

NCT07067151
View directory record Official record
Conditions
Smoking
Interventions
Not listed
Lead sponsor
National Institute on Minority Health and Health Disparities (NIMHD)
NIH
Eligibility
21 Years to 120 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Phase 2 Interventional

Informing Oral Nicotine Pouch Regulations to Promote Public Health

NCT06315881
View directory record Official record
Conditions
Tobacco-Related Carcinoma
Interventions
Biospecimen Collection, Cigarette, Nicotine Oral Pouch, Smokeless Tobacco, Survey Administration, Text Message-Based Navigation Intervention
Procedure · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 22, 2026, 10:04 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Studying the Effects of Nicotine Concentration and Flavor on Alcohol Use in Young Adults

NCT07095140
View directory record Official record
Conditions
Alcohol-Related Carcinoma
Interventions
Ecological Momentary Assessment, Monitoring, Nicotine Oral Pouch, Survey Administration
Other · Drug
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Sep 22, 2026, 10:04 PM EDT