Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 19, 2026, 6:43 AM EDT

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Showing 25–48 of 1,026 matching trials from the live ClinicalTrials.gov search.
Conditions
Smoking, Psychosis
Interventions
Web-based computer program
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
15 Years to 30 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Glen Oaks, New York
Conditions
ADHD
Interventions
methylphenidate HCl (Concerta)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 17 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Cambridge, Massachusetts
Withdrawn Not applicable Interventional Accepts healthy volunteers

Electronic Cigarettes or Nicotine Inhaler for Smoking Cessation

NCT02004171
Conditions
Tobacco Use Disorder
Interventions
electronic cigarette, nicotine inhaler
Other · Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Evaluate Changes in Smokers Using An Oral Tobacco-Derived Nicotine Product

NCT04079933
Conditions
Tobacco Use
Interventions
Oral tobacco-derived nicotine product (OTDN)
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
3
States / cities
Daytona Beach, Florida • Evansville, Indiana • Dallas, Texas
Completed Not applicable Interventional Accepts healthy volunteers Results available

Goal2QuitVaping for Nicotine Vaping Cessation Among Adolescents

NCT04951193
Conditions
Depressive Symptoms, Depression, Adolescent Behavior
Interventions
Behavioral Activation Therapy app, Treatment as Usual
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
16 Years to 20 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Charleston, South Carolina
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoking Topography and Harm Exposure in Menthol Cigarettes

NCT01329263
Conditions
Cigarette Smoking Toxicity
Interventions
Menthol to non-menthol
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Smoking, Smoking Cessation, Smoking Reduction, Smoking Habit, Smoking Behaviors, Smoking, Tobacco, Smoking, Cigarette, Smoking (Tobacco) Addiction, Tobacco Use, Tobacco Smoking
Interventions
Indoor Air Quality Monitor AirGradient ONE
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Completed Phase 1 Interventional Accepts healthy volunteers

Flavors and E-cigarette Effects in Adolescent Smokers- STUDY 2

NCT03168191
Conditions
Nicotine Dependence
Interventions
Nicotine, Experimental Flavor, Menthol Flavor
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 20 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Recruiting Phase 2 Interventional Accepts healthy volunteers

5-HT2A Agonist Psilocybin in the Treatment of Tobacco Use Disorder

NCT05452772
Conditions
Tobacco Use Disorder
Interventions
Psilocybin, Niacin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
3
States / cities
Birmingham, Alabama • Baltimore, Maryland • New York, New York
Conditions
Cigarette Smoking, Post Traumatic Stress Disorder, Signs and Symptoms, Respiratory
Interventions
CBT-A, CBT-S
Behavioral
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Stony Brook, New York
Conditions
Tobacco Use Disorder
Interventions
computer-assisted smoking cessation intervention, cancer prevention, educational intervention, survey administration
Behavioral · Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Burlington, Vermont
Completed No phase listed Observational Accepts healthy volunteers

e-Cigarette - DNA Adducts

NCT03284632
Conditions
Smoking, Cigarette Smoking, Electronic Cigarettes
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Completed No phase listed Observational Accepts healthy volunteers Results available

Mapping Brain Glutamate in Humans: Sex Differences in Cigarette Smokers

NCT05279053
Conditions
Sex, Cigarette Smoking
Interventions
Abstinence and Smoking
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Smoking Cessation, Electronic Cigarette Use
Interventions
Varenicline, Nicotine patch, Dual Focused Cessation Counseling, Smoking Focused Cessation Counseling, Counseling Intensity: 1 Session, Counseling Intensity: 4 Sessions
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Madison, Wisconsin
Completed No phase listed Observational Accepts healthy volunteers

The Impact of Chronic E-Cigarette Usage on Microvascular Health

NCT06860698
Conditions
E-Cig Use
Interventions
E-cig use
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 29 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Cigarette Smoking
Interventions
Contingency Management, Brief smoking cessation counseling
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Farmington, Connecticut
Completed No phase listed Observational Accepts healthy volunteers Results available

E-Cigarette Effects on Markers of Cardiovascular and Pulmonary Disease

NCT03863509
Conditions
Tobacco Use, E-Cigarette Use, Cardiovascular Diseases, Pulmonary Disease
Interventions
Cigarettes, E-Cigarettes
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Electronic (ECIG) Heater Resistance on ECIG Acute Effects

NCT03496116
Conditions
Nicotine Dependence
Interventions
ECIG Session
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Richmond, Virginia
Completed Not applicable Interventional Accepts healthy volunteers Results available

Combining a Smoke Ending Aid With Behavioral Treatment - 1

NCT00006151
Conditions
Tobacco Use Disorder
Interventions
Behavioral Therapy
Behavioral
Lead sponsor
Peter Gariti
Other
Eligibility
21 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2002
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Recruiting Not applicable Interventional

Cigarette Filter Study

NCT07348679
Conditions
Smoking ( Cigarette)
Interventions
Charcoal filtered cigarettes with marketing, Charcoal filtered cigarette without marketing, Non-charcoal filtered cigarettes
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
21 Years and older
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
New Brunswick, New Jersey
Completed Not applicable Interventional Accepts healthy volunteers

Interventions for Smoking Among Persons in Recovery

NCT00714896
Conditions
Smoking Cessation
Interventions
Stepped-Care, Control
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Walnut Creek, California
Not listed No phase listed Observational Accepts healthy volunteers

Risk Perception Among Quitting Smokers

NCT00384696
Conditions
Smoking
Interventions
Nicotine Replacement Therapy, Questionnaire
Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2020
U.S. locations
1
States / cities
Houston, Texas
Conditions
Alcoholism, Nicotine Dependence
Interventions
Varenicline
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Not applicable Interventional Results available

Efficacy of a Smoke-Free Homes Intervention

NCT04547686
Conditions
Cessation, Smoking
Interventions
Smoke-Free Homes Intervention, Quitline
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
916 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia