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ClinicalTrials.gov public records Last synced Oct 20, 2026, 6:58 PM EDT

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Showing 1–24 of 194 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Electronic cigarettes 1 Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Nicotine Plasma Concentrations and Subjective Effects for Three Menthol Electronic Cigarettes vs Combustible Menthol Cigarettes and Nicotine Gum

NCT02664012
View directory record Official record
Conditions
Smoking
Interventions
Own Brand Menthol Cigarette, Electronic Menthol Cigarette #1, Electronic Menthol Cigarette #2, Electronic Menthol Cigarette #3, Leading U.S. Nicotine Gum
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 4, 2018 · Synced Oct 20, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study to Determine the Effects of ENDS Flavor Availability on Abstinence Within Smokers

NCT07598136
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P2613422, P2611222, P2615522, P2615122, P2615422
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 65 Years
Enrollment
1,280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
7
States / cities
Maitland, Florida • Atlanta, Georgia • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 20, 2026, 6:58 PM 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 16, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Environmental Emissions From Electronic Cigarettes and Tobacco-Burning Cigarettes

NCT02185898
View directory record Official record
Conditions
Smoking
Interventions
Leading U.S. non-menthol cigarette, Leading U.S. menthol cigarette, Electronic cigarette #1, Electronic cigarette #2, Electronic cigarette #3, U.S. Market-sample electronic cigarettes
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 99 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Stockbridge, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 1, 2018 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

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

NCT04429932
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Myblu flavor A_2.4, Myblu flavor B_2.4, Myblu flavor C_2.4, Myblu flavor D_2.4, Myblu flavor E_1.2, Myblu flavor F_1.2, Myblu flavor G_2.4, Myblu flavor H_2.4
Other
Lead sponsor
Fontem US LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Oct 20, 2026, 6:58 PM EDT
Not listed No phase listed Observational

Comparative Tobacco Interventions for Individuals With Severe and Persisting Behavioral Health Disorders

NCT04523948
View directory record Official record
Conditions
Tobacco Use
Interventions
Behavioral and pharmacological support to reduce combustible tobacco use.
Behavioral
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years and older
Enrollment
100 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Characterization of Nicotine Exposure and Urge-to-Smoke Following Use of Electronic and Conventional Cigarettes

NCT02210754
View directory record Official record
Conditions
Smoking
Interventions
blu™ Classic Tobacco rechargeable (2.4% nicotine, glycerin vehicle), blu™ Classic Tobacco rechargeable (2.4% nicotine, glycerin/PG vehicle), blu™ Magnificent Menthol rechargeable (2.4% nicotine, glycerin vehicle), blu™ Classic Tobacco rechargeable (1.6% nicotine, glycerin vehicle), blu™ Classic Tobacco rechargeable (1.6% nicotine, glycerin/PG vehicle), Marlboro Cigarette
Other
Lead sponsor
Lorillard Tobacco Company
Industry
Eligibility
21 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 7, 2014 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

E-Cigarette Aerosol, Conventional Cigarette Smoke, and Myocardial Perfusion

NCT02612701
View directory record Official record
Conditions
Coronary Artery Disease, Myocardial Perfusion
Interventions
Cigarettes, E-cigarettes (nicotine free e-liquid), E-cigarettes (low nicotine e-liquid), E-cigarettes (high nicotine e-liquid)
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Results available

Smoking Cessation E-Visit

NCT04316260
View directory record Official record
Conditions
Smoking
Interventions
Smoking cessation e-visit, Treatment As Usual
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A RCT to Determine the Effect of ENDS Flavor Availability on Abstinence Within Smokers

NCT07172438
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P2611222, P2615022, P2615122, P2613422
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 65 Years
Enrollment
668 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
27
States / cities
Chandler, Arizona • Fort Smith, Arkansas • Altamonte Springs, Florida + 21 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional

Quit IT: Preliminary Testing of a Web-based, 3D Coping Skills Game to Increase Quitting Self-Efficacy for Maintaining Smoking Abstinence Following Hospitalization

NCT02099097
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
web-based video game (Quit IT), Questionnaires, Salvia sample
Other · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 30, 2020 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Nicotine Pharmacokinetics From Research Electronic Nicotine Delivery System S-TA-U001 in Smokers and E-Cigarette Users

NCT02792426
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Research ENDS S-TA-U001, Nicorette Inhalator
Drug
Lead sponsor
NJOY, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Burbank, California
Source: ClinicalTrials.gov public record
Updated May 17, 2018 · Synced Oct 20, 2026, 6:58 PM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Understanding Oral Nicotine Pouch Use in Healthy Volunteers

NCT07829939
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
0 mg oral nicotine pouches, 3 mg oral nicotine pouches, 6 mg oral nicotine pouches, cigarette or e-cigarette
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 6:58 PM 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 16, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Menthol as Delivered by an Electronic Cigarette on the Desirability of Nicotine in Tobacco Users

NCT02102100
View directory record Official record
Conditions
Nicotine Dependence
Interventions
nicotine, menthol
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 30 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
2
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 19, 2020 · Synced Oct 20, 2026, 6:58 PM EDT
Not listed Not applicable Interventional

Using ANDS to Reduce Harm for Low SES Cigarette Smokers

NCT05327439
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

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

NCT03379740
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 22, 2019 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Evaluate Harm Reduction Products as a Second Line Intervention for Adult Smokers Who Do Not Quit With NRT

NCT06088862
View directory record Official record
Conditions
Smoking Cessation, Harm Reduction
Interventions
Nicoderm, Nicorette 4Mg Chewing Gum, Nicorette Lozenge Product, BIDI e-cigarette, on!
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Bronchoscopy in Determining the Effect of E-Cigarette Smoking on Biomarkers in the Lungs

NCT03691350
View directory record Official record
Conditions
Cigarette Smoker, Current Every Day Smoker
Interventions
Bronchoscopy with Bronchoalveolar Lavage, Cigarette, Electronic Cigarette, Laboratory Biomarker Analysis, Nicotine Replacement, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 52 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Effects of Combination Zonisamide and Bupropion on Switching to an Electronic Cigarette

NCT05205811
View directory record Official record
Conditions
Smoking Cessation
Interventions
Bupropion, Zonisamide, Placebo bupropion, Placebo zonisamide, E-cigarette
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD190203: A Study to Determine Subject Puffing Patterns of an Electronic Nicotine Delivery System in an Ambulatory Setting

NCT04104152
View directory record Official record
Conditions
Smoking, Smoking Behaviors, Tobacco Use, Tobacco Smoking
Interventions
CSD1902-11, CSD1902-12, CSD1902-13, CSD1902-14, CSD1902-21, CSD1902-22, CSD1902-23, CSD1902-24
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Results available

Free-Base Nicotine or Nicotine Salt e-Liquids in Current E-Cigarette Smokers, PeloPET Study

NCT05455086
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Cigarette Smoking, Computed Tomography, Positron Emission Tomography, Questionnaire Administration
Behavioral · Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 50 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional

Respiratory Effects of E-Cigarettes in Obese Youth

NCT05869318
View directory record Official record
Conditions
E-Cig Use
Interventions
ECIG own, ECIG Vuse
Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 25 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Evaluation of Acute and Subacute Effects of Nicotine Free Electronic Cigarette(NCFE) Vapors

NCT02585791
View directory record Official record
Conditions
Healthy Lifetime Non-smokers
Interventions
Propylene Glycol, vegetable glycerin, PG+VG
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Oct 20, 2026, 6:58 PM EDT