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ClinicalTrials.gov public records Last synced Nov 15, 2026, 7:01 AM EST

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Showing 361–373 of 373 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: E Cig Use Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of the Be Vape Free Curriculum of the Tobacco Prevention Toolkit

NCT05493982
View directory record Official record
Conditions
E-cigarette Use
Interventions
Stanford Vaping Prevention curriculum
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
10 Years to 20 Years
Enrollment
2,779 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Developing E-liquid Product Standards (Sweet Spot Study)

NCT05864586
View directory record Official record
Conditions
Nicotine, Nicotine Vaping, E-cigarette Use
Interventions
Vaping study EC A, Vaping study EC B, Vaping study EC C, Vaping study EC D, Vaping study EC E, Vaping study EC F, Vaping study EC G, Vaping study EC H, Vaping study EC I, Vaping study EC J
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 50 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Nov 15, 2026, 7:01 AM EST
Completed Early Phase 1 Interventional Accepts healthy volunteers

Understanding the Impact of Cartridge-Based Electronic Cigarettes and Generated Aerosols on Cardiopulmonary Health

NCT05199480
View directory record Official record
Conditions
E-Cig Use
Interventions
Tobacco flavored liquid type 1, Tobacco flavored liquid type 2
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
21 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional

Influencer Marketing: a Survey-based Experiment Among Adolescents

NCT06501937
View directory record Official record
Conditions
Vaping
Interventions
Influencer marketing
Other
Lead sponsor
University of Southern California
Other
Eligibility
13 Years to 17 Years
Enrollment
664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Results available

A Trial of E-cigarettes in Current Cigarette Smokers

NCT02357173
View directory record Official record
Conditions
Smoking, Nicotine Dependence, Nicotine Dependence, Other Tobacco Product
Interventions
electronic cigarette, cigarette group
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Nov 15, 2026, 7:01 AM EST
Recruiting Phase 2 Interventional

E-Cigarettes for Harm Reduction in Smokers With Opioid Use Disorder

NCT05722561
View directory record Official record
Conditions
Opioid Use Disorder, Cigarette Smoking
Interventions
Telehealth Motivational Counseling, Nicotine Replacement Product, National Institute on Drug Abuse (NIDA) Standardized Research Electronic Cigarette (SREC).
Behavioral · Drug · Device
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 75 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
New York, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 9, 2026 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Results available

Effects of Cigarette and E-cigarette Flavors on Substitutability in the ETM

NCT06910202
View directory record Official record
Conditions
Cigarette Smoking Behavior
Interventions
Manipulation of nicotine/tobacco product price and availability
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Middle School Cluster Randomized Controlled Trial (RCT) to Evaluate E-Cigarette Prevention Program: CATCH My Breath

NCT04843501
View directory record Official record
Conditions
E-cigarette Use
Interventions
CATCH My Breath (CMB) program for E-cigarette prevention among adolescents, Texas Education Agency (TEA) required tobacco prevention program
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
10 Years to 15 Years
Enrollment
2,059 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Nov 15, 2026, 7:01 AM EST
Recruiting Not applicable Interventional Accepts healthy volunteers

The Role of Flavor in the Substitutability of E-cigarettes for Combustible Cigarettes Among Persistent Smokers

NCT06264154
View directory record Official record
Conditions
Smoking, Tobacco Use, Cigarette Smoking, E-Cig Use
Interventions
E-cigarettes
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 12, 2026 · Synced Nov 15, 2026, 7:01 AM EST
Not listed Not applicable Interventional Accepts healthy volunteers

Guiding Good Choices for Health

NCT04040153
View directory record Official record
Conditions
Adolescent Substance Use
Interventions
Guiding Good Choices
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
11 Years to 12 Years
Enrollment
3,636 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
3
States / cities
Oakland, California • Aurora, Colorado • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Adolescent Inpatient Tobacco and ENDS Intervention

NCT05936099
View directory record Official record
Conditions
Vaping, Smoking
Interventions
E-cigarette & Tobacco Use Treatment Intervention
Behavioral
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
14 Years to 21 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Nov 15, 2026, 7:01 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoking Cessation Self-Help for Dual Users of Tobacco Cigarettes and E-Cigarettes

NCT02416011
View directory record Official record
Conditions
Smoking Cessation
Interventions
GENERIC, eTARGET
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
2,896 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 23, 2022 · Synced Nov 15, 2026, 7:01 AM EST
Completed Phase 2 Interventional Results available

Varenicline for Treatment of E-cigarette Dependence

NCT05541497
View directory record Official record
Conditions
Smoking Cessation
Interventions
Varenicline Tartrate, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 2, 2024 · Synced Nov 15, 2026, 7:01 AM EST