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 2, 2026, 6:32 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 478 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Cigarette 2 Clear all
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 2, 2026, 6:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pilot Study to Evaluate the Efficacy and Safety of Ariva® Silver Wintergreen in Healthy Smokers

NCT01337817
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
Ariva Silver Wintergreen, Ariva Wintergreen
Other
Lead sponsor
Star Scientific, Inc
Industry
Eligibility
23 Years to 72 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Martinsburg, West Virginia
Source: ClinicalTrials.gov public record
Updated Oct 23, 2014 · Synced Sep 2, 2026, 6:32 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Ethanol and Cannabinoid Effects on Simulated Driving and Related Cognition: Sub-Study II

NCT02710097
View directory record Official record
Conditions
Cannabis, Alcohol Effect, Driving Under the Influence of Alcohol and Other Drugs
Interventions
Active inhaled cannabis, Placebo, Active Oral Ethanol
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effects of Menthol in E-cigarettes on Smoking Behaviors

NCT04521647
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Acute Effects of Oral Nicotine Pouches

NCT07128329
View directory record Official record
Conditions
Nicotine Pouch Self-Administration, Nicotine Pharmacokinetic Study, Nicotine Pharmacodynamic Study
Interventions
Nicotine Pouches
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of e-Cigarettes on Perceptions and Behavior - Substudy 1

NCT04399031
View directory record Official record
Conditions
Electronic Cigarette Use, Cigarette Use, Electronic, Vaping, Cigarette Smoking
Interventions
E-cigarette e-liquid
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 2, 2026, 6:32 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Modulation of Genes Responsible for Cilia Length by Exposure to Cigarette Smoke

NCT02168673
View directory record Official record
Conditions
COPD, Smoking
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 1, 2016 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GABA (Gamma Amino Butyric Acid) Medication for Tobacco

NCT00644137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
pregabalin, cigarettes
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD210903: A Study to Determine Subject Puffing Patterns of a Heated Tobacco Product With Four Non-Combusted Cigarette Variants in an Ambulatory Setting

NCT05307822
View directory record Official record
Conditions
Smoking, Smoking Behaviors, Tobacco Use, Tobacco Smoking
Interventions
Non-combusted cigarette variant 42001401, Non-combusted cigarette variant 42001399, Non-combusted cigarette variant 40007386, Non-combusted cigarette variant 42001402
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years and older
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
7
States / cities
Sandy Springs, Georgia • Lexington, Kentucky • Charlotte, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2023 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Multiple Risk Behavior Intervention in Health Care Settings

NCT01415492
View directory record Official record
Conditions
Health Behavior, Risk Reduction Behavior
Interventions
HD2+
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
2,440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2018 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of E-Cigarettes in Menthol Smokers

NCT05949034
View directory record Official record
Conditions
E-cigarette Use, Smoking Behaviors
Interventions
JUUL E-Cigarette Device
Device
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Results available

iQuit Mindfully: Text Messaging for Smoking Cessation

NCT03029819
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Mindfulness-based Addiction Treatment, iQuit Mindfully, Self-Help guide, Nicotine Patch
Behavioral · Drug
Lead sponsor
Georgia State University
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 7, 2019 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Repeated Cannabis Administration on Experimental Pain and Abuse Liability

NCT04576507
View directory record Official record
Conditions
Cannabis, Pain, Tolerance, Hyperalgesia
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Results available

Effect of Smoking Exposure on Smoking Relapse Following Brief Abstinence - 2

NCT00136838
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Neutral or active cigarette cues
Behavioral
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2018 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Varenicline on Cigarette Self Administration

NCT00731055
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2018 · Synced Sep 2, 2026, 6:32 AM 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 19, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Imaging Sex Differences in Smoking-Induced Pulmonary Inflammation

NCT03721822
View directory record Official record
Conditions
Smoking, Cigarette, Smoking E-cigarette, Healthy Volunteer
Interventions
[18F]NOS
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 45 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 2, 2026, 6:32 AM EDT
Recruiting Not applicable Interventional

Effects of Novel E-cigarette Constituents on Adults TCORS 3.0

NCT05932745
View directory record Official record
Conditions
Nicotine Use Disorder
Interventions
E-liquid coolant (No WS-3) for non-menthol (1), E-liquid coolant (No WS-3) for low (0.1%) menthol (1), E-liquid coolant (No WS-3) for high (2.0%) menthol (1), E-liquid coolant (Low [0.1%] WS-3) for non-menthol (2), E-liquid coolant (Low [0.1%] WS-3) for low (0.1%) menthol (2), E-liquid coolant (Low [0.1%] WS-3) for high (2.0%) menthol (2), E-liquid coolant (High [2.0%] WS-3) for non-menthol (3), E-liquid coolant (High [2.0%] WS-3) for low (0.1%) menthol (3), E-liquid coolant (High [2.0%] WS-3) for high (2.0%) menthol (3), E-liquid coolant (Low [0.1%] WS-23) for non-menthol (4), E-liquid coolant (Low [0.1%] WS-23) for low (0.1%) menthol (4), E-liquid coolant (Low [0.1%] WS-23) for high (2.0%) menthol (4), E-liquid coolant (High [2.0%] WS-23) for non-menthol (5), E-liquid coolant (High [2.0%] WS-23) for low (0.1%) menthol (5), E-liquid coolant (High [2.0%] WS-23) for high (2.0%) menthol (5), E-liquid coolant (4% WS-23) for non-menthol (6), E-liquid coolant (4% WS-23) for low (0.1%) menthol (6), E-liquid coolant (4% WS-23) for high (2.0%) menthol (6)
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine in Tobacco Smokers

NCT03651869
View directory record Official record
Conditions
Smoking, Tobacco, Smoking (Tobacco) Addiction
Interventions
Cigarette 1, Cigarette 2, Patch 1, Patch 2
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 12, 2023 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Results available

Changes in Biomarker of Exposure in Adults Who Smoke Cigarettes Switching From Cigarettes to Heated Tobacco Products

NCT06179290
View directory record Official record
Conditions
Tobacco Use
Interventions
Ploom HTP Menthol HTS; MX3 (681), Ploom HTP Tobacco HTS; R8 (120), Smoking Abstinence (menthol), Smoking Abstinence (non-menthol)
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
921 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
Bentonville, Arkansas • Rogers, Arkansas • Overland Park, Kansas + 5 more
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 2, 2026, 6:32 AM EDT
Completed No phase listed Observational Results available

Brain Nicotine Receptor Density in Veteran Smokers

NCT01721473
View directory record Official record
Conditions
Positron Emission Tomography
Interventions
positron emission tomography scan
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
San Diego, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2019 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Behavioral Intervention for Low Income Depressed Smokers in Drug Treatment

NCT01372254
View directory record Official record
Conditions
Cigarette Smoking, Drug Use
Interventions
Standard Treatment, BAD-AS, Transdermal Nicotine Patch
Behavioral · Drug
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 65 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vaper to Vaper: A Multimodal Mobile Peer Driven Intervention to Support Adolescents in Quitting Vaping

NCT05140915
View directory record Official record
Conditions
E-cigarette Use, Vaping
Interventions
Peer Messaging, Peer Coaching via Text, Gamification, E-Cigarette Cessation Materials
Behavioral · Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
13 Years to 19 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 3, 2025 · Synced Sep 2, 2026, 6:32 AM EDT
Completed Not applicable Interventional Results available

Comparison of the Substitution Between Different Tobacco/Nicotine Products as a Function of Tobacco-user Type

NCT05177848
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Vaping
Interventions
All nicotine/ tobacco products at market price, Nicotine vaping products at 1/2 market price, Nicotine vaping products at 2x market price, Heated tobacco products at 1/2 market price., Heated tobacco products at 2x market price., Nicotine pouch products at 1/2 market price., Nicotine pouch products at 2x market price.
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2025 · Synced Sep 2, 2026, 6:32 AM EDT