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ClinicalTrials.gov public records Last synced Oct 18, 2026, 4:55 AM EDT

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Showing 1–24 of 162 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: menthol Clear all
Completed Not applicable Interventional Results available

Cigarette and E-cigarette Flavors Manipulations in the Experimental Tobacco Marketplace

NCT05110872
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Cigarette flavor restricted and e-cigarette flavor restricted, Cigarette flavor restricted and e-cigarette flavor unrestricted, Cigarette flavor unrestricted and e-cigarette flavor restricted, Cigarette flavor unrestricted and e-cigarette flavor unrestricted
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
21 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Establish Safety and Maximum Tolerated Dose of IV Trehalose in Healthy Subjects

NCT02725957
View directory record Official record
Conditions
Healthy Volunteer Subjects
Interventions
Trehalose for IV Infusion, Saline 0.9% IV
Drug
Lead sponsor
Bioblast Pharma Ltd.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 22, 2016 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine Uptake, Measures of Abuse Liability, and Puffing Topography With Use of RELX ENDS Products by ENDS Consumers

NCT04620616
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, Subject Usual Brand ENDS
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 59 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Cypress, California • Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carbohydrates and Running Performance

NCT06742398
View directory record Official record
Conditions
Nutrition, Healthy
Interventions
Carbohydrate Dissolvable Strip, Carbohydrate Mouth Rinse, Water Mouth Rinse
Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoking Topography and Harm Exposure in Menthol Cigarettes

NCT01329263
View directory record Official record
Conditions
Cigarette Smoking Toxicity
Interventions
Menthol to non-menthol
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2015 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Flavors and E-cigarette Effects in Adolescent Smokers- STUDY 2

NCT03168191
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine, Experimental Flavor, Menthol Flavor
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 20 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 4, 2020 · Synced Oct 18, 2026, 4:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Menthol, Inflammation, and Nicotine Transition Study

NCT06232447
View directory record Official record
Conditions
Cigarette Smoking, Inflammatory Response
Interventions
Cigarette Type Switching
Other
Lead sponsor
Rosalind Franklin University of Medicine and Science
Other
Eligibility
21 Years to 85 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
North Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 18, 2026, 4:55 AM 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 18, 2026, 4:55 AM EDT
Completed Phase 2 Interventional Results available

Antibacterial Mouthwash for Pharyngeal Gonorrhea Prevention

NCT04966507
View directory record Official record
Conditions
Gonorrhea
Interventions
Listerine Antiseptic Mouthwash Product, Biotene Mouthwash
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low Nicotine Cigarettes, Smoking, and Chronic Pain

NCT05032755
View directory record Official record
Conditions
Chronic Pain, Smoking, Cigarette
Interventions
SPECTRUM NRC 102/103 investigational cigarettes, SPECTRUM NRC 600/601 investigational cigarettes
Other
Lead sponsor
Duke University
Other
Eligibility
21 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 29, 2025 · Synced Oct 18, 2026, 4:55 AM EDT
Terminated Phase 4 Interventional

Biofreeze® vs. a Placebo on Knee Osteoarthritis Walking Gait Characteristics and Pain

NCT03888807
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
Biofreeze, Placebo
Drug
Lead sponsor
Sport and Spine Rehab Clinical Research Foundation
Other
Eligibility
40 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 2, 2024 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Results available

Changes in Biomarkers Associated With Use of Electronic Cigarettes

NCT03084315
View directory record Official record
Conditions
Biomarkers
Interventions
E-Cig Zero Nicotine, E-Cig 24mg Nicotine
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assess Biomarkers of Tobacco Exposure and Nicotine Pharmacokinetics in Smokers After a 5-Day In-Clinic Confinement Switch to an Electronic Cigarette or Nicotine Gum

NCT02323438
View directory record Official record
Conditions
Smoking
Interventions
Usual Brand Cigarette, Electronic Cigarette #1, Electronic Cigarette #2, Leading U.S. Nicotine Gum
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 1, 2018 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Very Low Nicotine Content Cigarettes in a Complex Marketplace

NCT03272685
View directory record Official record
Conditions
Tobacco Smoking, Nicotine Dependence
Interventions
Very Low Nicotine Content Cigarettes, Normal Nicotine Content Cigarettes
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
799 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
6
States / cities
San Francisco, California • Minneapolis, Minnesota • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use Behavior, Nicotine Uptake, and Subjective Effects Comparison of Tobacco and Menthol e-Liquids by ENDS Consumers

NCT05134415
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor 1, RELX ENDS Tobacco Flavor 2, RELX ENDS Menthol Flavor 1, RELX ENDS Menthol Flavor 2
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Burbank, California
Source: ClinicalTrials.gov public record
Updated Dec 13, 2021 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD1601: A Study to Evaluate the Exposure to Tar and Nicotine From Two Cigarette Products That Contain a Menthol Capsule in the Filter

NCT04529551
View directory record Official record
Conditions
Smoking, Tobacco Smoking, Tobacco Use
Interventions
1601A, 1601B
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years and older
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Oct 18, 2026, 4:55 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Efficacy and Safety of K-285 Compared With Menthol Gel for the Treatment of Delayed Onset Muscle Soreness (DOMS) in the Lower Extremity

NCT04484428
View directory record Official record
Conditions
Acute Pain
Interventions
K-285, Menthol
Drug
Lead sponsor
Kowa Research Institute, Inc.
Industry
Eligibility
18 Years to 35 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2024 · Synced Oct 18, 2026, 4:55 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 27, 2023 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Banning Menthol Flavorant on Cigarette and E-Cigarette Use

NCT03402243
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Menthol ban on cigarettes, Menthol ban on cigarettes and e-cigarettes, No menthol ban
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 64 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 10, 2021 · Synced Oct 18, 2026, 4:55 AM 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 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cooling Agent Pilot Among Adult Menthol Smokers

NCT06477601
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Assigning cooling agent type cigarettes, Assigning traditional tobacco type cigarettes, Assigning menthol type cigarettes
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

E-cigarette Switching Older Adults

NCT06534905
View directory record Official record
Conditions
Tobacco Use, Opioid Use Disorder, Tobacco-Related Disorders
Interventions
E-cigarette, Control/Standard Advice
Other · Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
50 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 18, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine Uptake, Measures of Abuse Liability, and Puffing Topography With Use of RELX ENDS Products by Smokers

NCT04640285
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, Usual Brand Cigarette, Nicorette White Ice Mint nicotine polacrilex gum
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 59 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 24, 2021 · Synced Oct 18, 2026, 4:55 AM EDT
Withdrawn Phase 1 Interventional

Peppermint Oil Pharmacokinetics/Dynamics

NCT04497870
View directory record Official record
Conditions
Abdominal Pain
Interventions
Peppermint oil
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 12 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Oct 18, 2026, 4:55 AM EDT