- Conditions
- E Cigarette Use, Vaping, Smoking, Tobacco Smoking, Nicotine Use Disorder, Qt Interval, Variation in, HIV I Infection, Oxidative Stress, Inflammation
- Interventions
- TCIG, ECIG, sham control
- Other
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 21 Years to 45 Years
- Enrollment
- 37 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2023
- U.S. locations
- 2
- States / cities
- Los Angeles, California
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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Cigarette Smoking-Related Carcinoma
- Interventions
- Nicotine Replacement, Questionnaire Administration, Vaping
- Drug · Other · Device
- Lead sponsor
- Ohio State University Comprehensive Cancer Center
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 1,500 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- E Cigarette Use, Cessation, Tobacco, Cessation, Nicotine
- Interventions
- Nicotine Replacement Therapies, Brief Behavioral Counseling
- Drug · Behavioral
- Lead sponsor
- West Virginia University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 2
- States / cities
- Greenville, North Carolina • Morgantown, West Virginia
- 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
- Conditions
- Cardiovascular Risk Factor, Nicotine Dependence
- Interventions
- Electronic Cigarette
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 2
- States / cities
- San Francisco, California
- Conditions
- THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
- Interventions
- Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 14 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 2
- States / cities
- San Francisco, California
- Conditions
- Cannabis Use, Risk Perception, Decision Making
- Interventions
- Discrete choice experiment (DCE) survey-experiment
- Behavioral
- Lead sponsor
- University of Oklahoma
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 450 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Oklahoma City, Oklahoma
- Conditions
- Tobacco Dependence, Tobacco Smoking
- Interventions
- Smoke-free home resident intervention, Lay Health Worker coaching
- Behavioral
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 544 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Smoking
- Interventions
- NNC Spectrum Cigarette, VLNC Spectrum Cigarette, Moderate nicotine level e-liquid, Low nicotine level e-liquid, Tobacco Flavors, Tobacco and non-tobacco e-liquid flavors
- Other
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 156 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 2
- States / cities
- Winston-Salem, North Carolina • Philadelphia, Pennsylvania
- Conditions
- Smoking, Asthma, Electronic Cigarette Use, Cigarette Smoking
- Interventions
- Nicotine
- Other
- Lead sponsor
- Brown University
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Providence, Rhode Island
- Conditions
- Vaping
- Interventions
- Control task and Trier Social Stress Task
- Other
- Lead sponsor
- Clemson University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 51 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Burlington, Vermont
- Conditions
- Tobacco Cessation
- Interventions
- This is Quitting, Assessment only Control
- Other
- Lead sponsor
- Truth Initiative
- Other
- Eligibility
- 18 Years to 24 Years
- Enrollment
- 2,588 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Washington D.C., District of Columbia
- Conditions
- Tobacco Dependence
- Interventions
- Nicotine Containing ECIG with tobacco flavor, Nicotine Containing ECIG with Strawberry Vanilla Flavor, Placebo ECIG with Tobacco Flavor, Placebo ECIG with Strawberry Vanilla Flavor
- Other
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 21 Years to 60 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2024
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania
- Conditions
- Cigarette Smoking, Vaping
- Interventions
- Tobacco e-liquids, Menthol and Tobacco e-liquids, Mint, Menthol and Tobacco e-liquids, All e-liquid flavors
- Behavioral
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 66 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Nicotine Use Disorder, Substance Use Disorders
- Interventions
- TI-NDBS, Sham TI-NDBS
- Device
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 21 Years to 50 Years
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 2
- States / cities
- Bloomington, Indiana • Indianapolis, Indiana
- Conditions
- Smoking
- Interventions
- E-cigarettes with varying concentrations of nicotine & flavor
- Other
- Lead sponsor
- Oregon State University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Corvallis, Oregon
- Conditions
- Vaping, Preventive Psychiatry, Social Networking
- Interventions
- Above the Influence-Vaping (ATI-V)
- Behavioral
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 3,950 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2025
- U.S. locations
- 1
- States / cities
- Rochester, New York
- 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
- Conditions
- Electronic Cigarette Related Lung Damage
- Interventions
- Hyperpolarized xenon 129, Cardiopulmonary Stress Test, Pulmonary Function Test, Chest CT
- Drug · Diagnostic Test
- Lead sponsor
- Y. Michael Shim, MD
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2032
- U.S. locations
- 2
- States / cities
- Durham, North Carolina • Charlottesville, Virginia
- 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
- Conditions
- Cigarette Smoking, Nicotine Vaping
- Interventions
- All nicotine/ tobacco products at market price, Nicotine vaping products at 1/2 market price, Heated tobacco products at 1/2 market price., Nicotine pouch products at 1/2 market price.
- Other
- Lead sponsor
- Virginia Polytechnic Institute and State University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 440 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Roanoke, Virginia
- Conditions
- Vaping, Smoking Cessation
- Interventions
- Virtual Reality Program, VR Program
- Behavioral
- Lead sponsor
- Boston University
- Other
- Eligibility
- 13 Years to 19 Years
- Enrollment
- 119 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vaping, Vaping Teens, Nicotine Dependence
- Interventions
- QuitVaping, This is Quitting (TIQ)
- Behavioral
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 14 Years to 19 Years
- Enrollment
- 400 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Premature Atrial Contractions, Premature Ventricular Contractions
- Interventions
- Randomized instructions
- Behavioral
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 108 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 2
- States / cities
- San Francisco, California