Search | Clinical Trials Finder

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ClinicalTrials.gov public records Last synced Nov 15, 2026, 4:38 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 145–168 of 373 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: E Cig Use Clear all

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: Smoking
Interventions: E-cigarette; Other
Lead sponsor: Prisma Health-Upstate; Other
Eligibility: 21 Years and older
Enrollment: 30 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2024
U.S. locations: 1
States / cities: Greenville, South Carolina

Conditions: Cannabis Use, THC, Marijuana Use, Cognitive Impairment, THC Vaping
Interventions: 15% THC Potency Reduction, 35% THC Potency Reduction; Behavioral
Lead sponsor: University of California, San Francisco; Other
Eligibility: 21 Years to 25 Years
Enrollment: 110 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025 – 2026
U.S. locations: 1
States / cities: San Francisco, California

Conditions: Smoking, Tobacco
Interventions: P1213416, P1213422, P1213716, P1213722, P1211216, P1211222, P1213616, P1213622, P1213816, P1213822, P1211916, P1211922; Other
Lead sponsor: RAI Services Company; Industry
Eligibility: 21 Years to 60 Years
Enrollment: 1,845 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2024
U.S. locations: 12
States / cities: Phoenix, Arizona • Fort Lauderdale, Florida • Orlando, Florida + 9 more

Conditions: Vaping, Complication of Anesthesia
Interventions: Not listed
Lead sponsor: Navy Medical Center San Diego; Federal
Eligibility: 12 Years to 80 Years
Enrollment: 300 participants
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: San Diego, California

Conditions: Cigarette Smoking-Related Carcinoma
Interventions: Biospecimen Collection, Nitric Oxide Breath Test, Oscillometry, Spirometry, Survey Administration, Endothelial function; Procedure · Other
Lead sponsor: Ohio State University Comprehensive Cancer Center; Other
Eligibility: 15 Years to 25 Years
Enrollment: 182 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2026
U.S. locations: 1
States / cities: Columbus, Ohio

Conditions: Vaping Teens, Healthy Volunteers
Interventions: Mindfulness-based Stress Reduction (MBSR) Program, functional magnetic resonance imaging (fMRI); Behavioral · Other
Lead sponsor: National Institute on Drug Abuse (NIDA); NIH
Eligibility: 13 Years to 18 Years
Enrollment: 14 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Nicotine Use Disorder
Interventions: Flavoring Agents, Nicotine; Drug
Lead sponsor: Yale University; Other
Eligibility: 18 Years to 20 Years
Enrollment: 42 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: New Haven, Connecticut

Conditions: Smoking, Cigarette, Smoking Cessation
Interventions: Smoking Cessation iPad Decision Aid Tool; Behavioral
Lead sponsor: University of Florida; Other
Eligibility: 18 Years to 100 Years
Enrollment: 120 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019
U.S. locations: 1
States / cities: Gainesville, Florida

Conditions: Tobacco Smoking
Interventions: Cigarettes, E-Cigarette, Nicotine Gum or Lozenge; Other
Lead sponsor: University of Minnesota; Other
Eligibility: 18 Years and older
Enrollment: 264 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2018
U.S. locations: 3
States / cities: Minneapolis, Minnesota • Buffalo, New York • Columbus, Ohio

Conditions: Tobacco Use, Tobacco Smoking, Cigarette Smoking, Smokeless Tobacco Cessation
Interventions: Electronic Cigarette, Oral Nicotine Pouch; Other
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 21 Years to 55 Years
Enrollment: 15 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2023
U.S. locations: 1
States / cities: Buffalo, New York

Conditions: Lung Disease, Lung Disorder
Interventions: Group A, Group B, Group C, Group D, Group E; Other
Lead sponsor: Weill Medical College of Cornell University; Other
Eligibility: 21 Years to 85 Years
Enrollment: 13 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2018
U.S. locations: 1
States / cities: New York, New York

Conditions: Healthy Volunteers
Interventions: Myblu variant A, Myblu variant B, Myblu variant C, Myblu variant D, Myblu variant E, Myblu variant F, Myblu variant G, Myblu variant H; Other
Lead sponsor: Fontem US LLC; Industry
Eligibility: 21 Years to 65 Years
Enrollment: 40 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2020
U.S. locations: 1
States / cities: Lincoln, Nebraska

Conditions: Vaping, Nicotine Absorption
Interventions: E-cigarette, P4M3-1.7%, P4M3-1.7%LA, P4M3-3%LA, P4M3-4%LA; Other
Lead sponsor: Philip Morris Products S.A.; Industry
Eligibility: 21 Years to 65 Years
Enrollment: 15 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017
U.S. locations: 1
States / cities: High Point, North Carolina

Conditions: Cardiovascular Risk Factor, Nicotine Dependence
Interventions: Electronic Cigarette; Other
Lead sponsor: University of California, San Francisco; Other
Eligibility: 21 Years to 70 Years
Enrollment: 14 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2024
U.S. locations: 2
States / cities: San Francisco, California

Conditions: Vaping Behavior
Interventions: Vaping prevention text messages, Wellness behaviors text messages; Behavioral
Lead sponsor: UNC Lineberger Comprehensive Cancer Center; Other
Eligibility: 13 Years to 20 Years
Enrollment: 480 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024
U.S. locations: 1
States / cities: Chapel Hill, North Carolina

Conditions: Tobacco-Related Carcinoma
Interventions: Smartphone Application-based Intervention, Survey Administration, Interview; Behavioral · Other
Lead sponsor: Fred Hutchinson Cancer Center; Other
Eligibility: 13 Years to 17 Years
Enrollment: 1,072 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2031
U.S. locations: 1
States / cities: Seattle, Washington

Conditions: E-Cig Use
Interventions: E-liquid coolant (WS-3, 0.05%), E-liquid coolant (WS-3, 0.1%), E-liquid coolant (WS-3, 0.5%), E-liquid coolant (WS-3, 1.0%), E-liquid coolant (WS-3, 2.0%), E-liquid coolant (menthol, 0.05%), E-liquid coolant (menthol, 0.1%), E-liquid coolant (menthol, 0.5%), E-liquid coolant (menthol, 1.0%), E-liquid coolant (menthol, 2.0%), E-liquid coolant (WS-23, 0.05%), E-liquid coolant (WS-23, 0.1%), E-liquid coolant (WS-23, 0.5%), E-liquid coolant (WS-23, 1.0%), E-liquid coolant (WS-23, 2.0%), E-liquid coolant (WS-23, 4.0%); Other
Lead sponsor: Yale University; Other
Eligibility: 18 Years and older
Enrollment: 31 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: New Haven, Connecticut

Conditions: Electronic Cigarette Use
Interventions: E-cigarette liquid with ethanol, 1 puff, E-cigarette liquid without ethanol, 1 puff, E-cigarette liquid with ethanol, 10 puffs, E-cigarette liquid without ethanol, 10 puffs; Other
Lead sponsor: Virginia Commonwealth University; Other
Eligibility: 21 Years to 65 Years
Enrollment: 17 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2022
U.S. locations: 1
States / cities: Richmond, Virginia

Conditions: Smoking, Cigarette, Nicotine Dependence
Interventions: Nicotine (electronic cigarette), Nicotine (nicotine pouch); Other
Lead sponsor: Brown University; Other
Eligibility: 21 Years and older
Enrollment: 45 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: Providence, Rhode Island

Conditions: Smoking, Tobacco
Interventions: FT25614, FT25615, FT25616; Other
Lead sponsor: RAI Services Company; Industry
Eligibility: 21 Years to 65 Years
Enrollment: 480 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2027
U.S. locations: 5
States / cities: Fort Lauderdale, Florida • Atlanta, Georgia • Chicago, Illinois + 2 more

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: Nicotine Dependence, Nicotine Dependence, Cigarettes, Tobacco Use, Tobacco Smoking
Interventions: Virginia Tobacco flavored JUUL 5% ENDS, Cool Mint flavored JUUL 5% ENDS, Mango flavored JUUL 5% ENDS, Creme Brulee flavored JUUL 5% ENDS, VUSE Solo e-cigarette, Nicorette White Ice Mint 4mg nicotine polacrilex gum, Usual Brand combustible cigarette; Other
Lead sponsor: Juul Labs, Inc.; Industry
Eligibility: 21 Years to 65 Years
Enrollment: 67 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018
U.S. locations: 1
States / cities: Overland Park, Kansas

Conditions: Electronic Cigarette Use, Pulmonary Disease
Interventions: Pulmonary Group, Healthy Control; Other
Lead sponsor: University of Alabama at Birmingham; Other
Eligibility: 18 Years and older
Enrollment: 200 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2021
U.S. locations: 1
States / cities: Birmingham, Alabama

Search by objective public record fields.

The Impact of Chronic E-Cigarette Usage on Microvascular Health

E-cigarettes as a Harm Reduction Strategy

Cannabis THC Potency, Metabolism, and Cognitive Impairment in Young Adults

CSD201204 An Actual Use Study of P12 Electronic Nicotine Delivery System Among U.S. Adult Smokers

Perioperative Vaping Complications

Impact of E-cigarette Use on the Body

Hippocampal Network Changes Following Mindfulness Training in Tobacco Vaping Adolescents in an Open-label, Pilot Study

Effects of E-cigarette Flavors on Youth TCORS 2.0

Feasibility of a Decision Aid for E-Cigarettes in Primary Care

Methods Project 4: Clinical Trial - Amended

Comparing Nicotine Delivery, Subjective Effects, and Sensory Experiences of Tobacco Users Using Oral Nicotine Products and Electronic Cigarettes [ZYN Study]

Effects of Electronic Cigarettes on Lung Biology

A Study to Evaluate Nicotine Uptake and Biomarkers in Smokers Using mybluTM Electronic Cigarettes

Study to Investigate the Nicotine Pharmacokinetic Profiles and Pharmacodynamic Effects of P4M3 Variants

Short-Term Cardiovascular Effects of E-Cigarettes: Influence of E-Liquid pH

Impact of E-Cigarette Prevention Messages on Adolescents

A Novel Smartphone Application for Helping Teens Stop Vaping, QuitQuest Vaping R01

Effect of Different E-cigarette Cooling Flavors on Adults' Sensory Experience TCORS 3.0

The Impact of Vaping Ethanol in the Evaluation of Impairment

Using ANDS to Reduce Harm for Low SES Cigarette Smokers

A Study to Determine the Effect of Access to Multiple Tobacco Flavor Options on Smoking Abstinence Among Primary Cigarette Smokers Using an Electronic Nicotine Delivery System

THC Crossover Study

United States Pre-Market Tobacco Application Pharmacokinetics

Factors That Impact the Relationship Between Pulmonary Status and Susceptibility to Electronic Cigarette Use