Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 5, 2026, 6:41 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 2,070 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Smoking Behaviors Clear all
Withdrawn Phase 2 Interventional

Electronic Nicotine Delivery Systems as a Smoking Cessation Treatment

NCT02487953
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine patch, ENDS, Placebo patch, Placebo ENDS
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Sep 5, 2026, 6:41 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Airway, Blood and/or Urine Specimens From Subjects for Research Studies

NCT01776398
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Idiopathic Pulmonary Fibrosis (IPF), Rheumatoid Arthritis-Associated Interstitial Lung Disease, Scleroderma-Associated Interstitial Lung Disease (SSC-ILD)
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Sep 5, 2026, 6:41 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Step-up to Quit: Using Low-to-moderate Intensity Exercise for Reducing Smoking Cue Reactivity Among Low-income Smokers

NCT02220465
View directory record Official record
Conditions
Sedentary Lifestyle, Cigarette Smoking
Interventions
PA+ Smoking Cessation (LMPA), Standard Care Smoking Counseling (SCC)
Behavioral
Lead sponsor
Temple University
Other
Eligibility
18 Years to 59 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2014 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Neurobiology of Nicotine and Non-nicotine Components of Tobacco Addiction

NCT01056926
View directory record Official record
Conditions
Smoking
Interventions
Quit smoking, Nicotine patch, Placebo Patch
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2017 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Dronabinol (Oral THC) on Cannabis Use

NCT01394185
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Dronabinol 120mg/day, Placebo, Dronabinol 240mg/day
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 2, 2017 · Synced Sep 5, 2026, 6:41 AM EDT
Suspended Not applicable Interventional

SmokefreeSGM Español Pilot, Beta Testing a Text-based Smoking Cessation Intervention for Sexual and Gender Minority(SGM) Groups Preferring Spanish Language

NCT06487806
View directory record Official record
Conditions
Smoking Cessation
Interventions
SmokefreeSGM
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of E-Cigarette Nicotine Content in Smokers (Nicotine Flux Study)

NCT04332926
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
Tobacco product administration and assessment, own brand cigarettes, Tobacco product administration and assessment, ECIG 30 Watts, 0 mg/ml nicotine, Tobacco product administration and assessment, ECIG 30 Watts, 8 mg/ml nicotine, Tobacco product administration and assessment, ECIG 30 Watts, 15 mg/ml nicotine, Tobacco product administration and assessment, ECIG 30 Watts, 30 mg/ml nicotine
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Spanish-Language Smoking Cessation Trial

NCT02945787
View directory record Official record
Conditions
Smoking Cessation
Interventions
Spanish-Language Version of the Stop Smoking for Good, NCI-Produced Spanish-language Self-help Booklet
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,417 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 3, 2022 · Synced Sep 5, 2026, 6:41 AM EDT
Not listed Not applicable Interventional

Veteran Support for Smoking Cessation Pilot Project (VAntage Pilot)

NCT04840108
View directory record Official record
Conditions
Smoking Cessation
Interventions
Support Person Coaching Intervention, Support Person Written Materials
Behavioral
Lead sponsor
Minneapolis Veterans Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tobacco Treatment for Employable Californians, Total IMPACT Study

NCT02478697
View directory record Official record
Conditions
Tobacco Dependence
Interventions
ProChange ExpertSystem
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
3
States / cities
Menlo Park, California • San Francisco, California • San Rafael, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Results available

Sex Differences, Hormones & Smoking Cessation

NCT01744574
View directory record Official record
Conditions
Tobacco Cessation
Interventions
Placebo, Progesterone, Smoking Cessation Behavioral Counseling
Other · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Connect to Quit for Smoking

NCT01299896
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Coordinated Care, Usual Care
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
633 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 21, 2016 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Results available

Improving Smoking Cessation Quitlines: Pilot Study of Acceptance Therapy

NCT01525420
View directory record Official record
Conditions
Smoking
Interventions
Acceptance Therapy (ACT), Cognitive Behavioral Therapy (CBT)
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 25, 2014 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Results available

Trial of Integrated Smoking Cessation, Exercise and Weight Management in Serious Mental Illness: TRIUMPH

NCT02424188
View directory record Official record
Conditions
Mental Illness
Interventions
TRIIUMPH Intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Results available

Internet-Based Smoking Cessation for Operations Enduring Freedom and Iraqi Freedom (OEF/OIF) Veterans

NCT01001546
View directory record Official record
Conditions
Smoking Cessation
Interventions
Internet-based, Standard Clinic-Based
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2015 · Synced Sep 5, 2026, 6:41 AM EDT
Not listed Phase 2 Interventional

Healthy Outcomes of Pregnancy Education

NCT00381823
View directory record Official record
Conditions
Environmental Tobacco Smoke Exposure, Depression, Partner Abuse, Tobacco Smoking
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years and older · Female only
Enrollment
1,750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 28, 2006 · Synced Sep 5, 2026, 6:41 AM EDT
Active, not recruiting Not applicable Interventional

Teachable Moment to Opt-out of Tobacco: Interactive Voice Response Quit Line for Veteran Active Smokers With Lung Nodules

NCT04574518
View directory record Official record
Conditions
Solitary Pulmonary Nodule, Multiple Pulmonary Nodules, Tobacco Use
Interventions
TeaM OUT Intervention, Enhanced Usual Care
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
3
States / cities
Minneapolis, Minnesota • Portland, Oregon • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Phase 2 Interventional Results available

Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana

NCT01844687
View directory record Official record
Conditions
Smoking, Marijuana
Interventions
CBD
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
3
States / cities
Lexington, Kentucky • New York, New York • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cigarette and E-cigarette Nicotine Content in an Electronic Tobacco Marketplace (ETM)

NCT05320887
View directory record Official record
Conditions
Tobacco Use
Interventions
Normal Nicotine Content Vape with all flavor e-liquids, Normal nicotine content vape with tobacco e-liquids, Low nicotine content vape with all flavor e-liquids, Low nicotine content vape with tobacco e-liquids
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years and older
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 5, 2026, 6:41 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Circuits in Schizophrenia and Smoking

NCT01425684
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder
Interventions
Not listed
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
12 Years to 80 Years
Enrollment
837 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced Sep 5, 2026, 6:41 AM EDT
Recruiting Phase 4 Interventional

Using Multiphase Optimization Strategy (MOST) to Optimize a Cost-effective, Sustainable and Scalable Smoking Cessation Package for Smokers in HIV Clinical Care

NCT06598397
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV), Smoking Cessation
Interventions
Motivational Interviewing (MI) Counseling, Peer Mentoring, Skills-based Text Messaging, Combination NRT
Behavioral · Drug
Lead sponsor
New York University
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Testing Counseling Styles to Motivate Smokers to Quit

NCT01188018
View directory record Official record
Conditions
Smoking, Tobacco Use, Nicotine Dependence
Interventions
Brief Advice (BA), Motivational Interviewing (MI), Health Education (HE)
Behavioral
Lead sponsor
University of Missouri, Kansas City
Other
Eligibility
18 Years and older
Enrollment
255 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 3, 2012 · Synced Sep 5, 2026, 6:41 AM EDT
Completed Not applicable Interventional Results available

Effects of Narratives on Demand for Low and High Ventilated Cigarettes and Substitution for Alternative Products

NCT05487625
View directory record Official record
Conditions
Cigarette Smoking
Interventions
High-ventilated cigarette alone, Low-ventilated cigarette alone, High- and low-ventilated cigarette with high-ventilated cigarettes increasing in price, Low- and high-ventilated cigarette with high-ventilated cigarettes increasing in price, Usual, high- and low-ventilated cigarette with usual cigarettes increasing in price.
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 5, 2026, 6:41 AM EDT
Terminated Not applicable Interventional

Insulin Resistance in Smokers Undergoing Smoking Cessation

NCT00877513
View directory record Official record
Conditions
Cardiovascular Disease, Insulin Resistance
Interventions
Smoking cessation
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
25 Years to 70 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2014 · Synced Sep 5, 2026, 6:41 AM EDT