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Showing 1–24 of 30 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Accepts healthy volunteers

Impact of Cigar Flavor in Dual Users

NCT04487470
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Flavored filtered cigars, Unflavored filtered cigars
Other
Lead sponsor
UConn Health
Other
Eligibility
21 Years to 34 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Phase 2 Interventional

Intermittent Hypoxia and Caffeine in Infants Born Preterm

NCT03321734
View directory record Official record
Conditions
Intermittent Hypoxia
Interventions
Caffeine, Placebos
Drug
Lead sponsor
Children's National Research Institute
Other
Eligibility
32 Weeks to 36 Weeks
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
15
States / cities
Loma Linda, California • Washington D.C., District of Columbia • Orlando, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Raw Versus Other Milk Sources on Lactose Digestion

NCT01129791
View directory record Official record
Conditions
Lactose Intolerance
Interventions
Raw Milk, Pasteurized Milk, Non-dairy milk
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Sep 3, 2026, 8:53 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Social Media Influences on Engagement and Susceptibility to Non-combustible Tobacco Product Use Among Youth and Young Adults (AYA)

NCT07721883
View directory record Official record
Conditions
Perceptions of Tobacco Products
Interventions
Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
14 Years to 17 Years
Enrollment
4,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Randomized Controlled Trial to Evaluate the Impact of ZYN Nicotine Pouch Products on Cigarette Usage and BoExp in Adult Smokers Over a 12-week Period

NCT06568900
View directory record Official record
Conditions
Tobacco Use
Interventions
cigarette smoking, tobacco flavored and unflavored pouch, unrestricted flavor options pouch
Other
Lead sponsor
Swedish Match AB
Industry
Eligibility
22 Years to 65 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Of The Taste Of Different Oral Liquid Preparations Of CP-690,550 In Trained Adult Product Testers

NCT01023100
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
CP 690,550 oral solutions
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 15, 2010 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Results available

Study Of Drinks With Artificial Sweeteners in People With Type 2 Diabetes

NCT03944616
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Diet Beverage, Water
Behavioral
Lead sponsor
University of California, Irvine
Other
Eligibility
35 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Irvine, California • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Impact of Flavors on Nicotine Perception and Self-Administration Via E-cigarettes

NCT04038515
View directory record Official record
Conditions
Nicotine, E-liquid Flavors
Interventions
Nicotine 0 mg/mL, Nicotine 6 mg/mL, Nicotine 12 mg/mL, Nicotine 24 mg/mL, 'Menthol' flavor, 'Menthol/Mint' flavor, 'Green Apple' flavor, 'Watermelon' flavor, 'Unflavored'
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 30 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 4, 2024 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Potential Effects of Electronic Nicotine Delivery System Flavor Regulations on African American Menthol Smokers

NCT05023096
View directory record Official record
Conditions
Electronic Nicotine Delivery System Flavors
Interventions
Tobacco product administration and assessment
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
21 Years and older
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Results available

Neurological Impacts of Artificial Sweeteners in the Context of Diet Sodas

NCT04048681
View directory record Official record
Conditions
Obesity
Interventions
diet soda, Regular soda, Carbonated Water
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacokinetics, Subjective Effects, and Abuse Liability of Nicotine Salt-Based Vaping Products With Tobacco or Unflavored E-liquids, SALTVAPE Study

NCT04231539
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine, Vaporizer Device, Salt-HIgh Nicotine Unflavored (Product B), Free-Low Nicotine Tobacco Flavored (Product C), Salt-High Nicotine Tobacco Flavored (Product D)
Drug · Device
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addictive Potential of LCCs in Dual Users

NCT03496077
View directory record Official record
Conditions
Tobacco Use Disorder, Dual Tobacco Use, Tobacco Dependence, Smoking, Smoking, Cigar, Smoking, Cigarette, Smoking, Tobacco
Interventions
Flavored and unflavored little cigars/cigarillos (LCCs)
Other
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 34 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Flavored, Carbonated Drinks on Salivary Flow, Salivary Composition, and Taste Perceptions

NCT06933290
View directory record Official record
Conditions
Taste Perception, Saliva Production
Interventions
Beverage
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 45 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Valhalla, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of Waterpipe Tobacco Flavors on Waterpipe Smoking Intentions, Perceptions, Patterns, and Toxicant Exposure

NCT03232827
View directory record Official record
Conditions
Smoking, Hookah, Waterpipe Smoking
Interventions
Flavored-Sweetened Waterpipe Tobacco, Unflavored-sweetened waterpipe tobacco, Unflavored-very low sweetened waterpipe tobacco, Flavored-very low sweetened waterpipe
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 50 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 23, 2019 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional

Improving Tolerability of Bowel Preparation Laxative for Colonoscopy

NCT02062112
View directory record Official record
Conditions
Colonoscopy, Bowel Preparation
Interventions
Pattern of flavoring of bowel laxative
Other
Lead sponsor
Howard University
Other
Eligibility
18 Years to 100 Years
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 13, 2018 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Whey Protein Supplements on Markers of Exercise-induced Muscle Damage in Resistance-trained Individuals

NCT05100459
View directory record Official record
Conditions
Muscle Damage, Muscle Soreness
Interventions
Pasture-raised whey protein, Conventional whey protein, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Sep 3, 2026, 8:53 AM EDT
Recruiting Not applicable Interventional

Effects of E-cigs vs Pouches on Cigarette Smoking and Addiction

NCT06077240
View directory record Official record
Conditions
Smoking, Smoking Behaviors, Nicotine Dependence
Interventions
E-cigarette with 2.4% Nicotine with Menthol and Tobacco Flavors, E-cigarette with 2.4% Nicotine with Tobacco Flavor Only, E-cigarette with 5% Nicotine with Menthol and Tobacco Flavors, E-cigarette with 5% Nicotine with Tobacco Flavor Only, Tobacco Pouches with 3mg Nicotine with Menthol and Tobacco Flavors, Tobacco Pouches with 3mg Nicotine with Tobacco Flavor Only, Tobacco Pouches with 6mg Nicotine with Menthol and Tobacco Flavors, Tobacco Pouches with 6mg Nicotine with Tobacco Flavor Only
Behavioral
Lead sponsor
Yale University
Other
Eligibility
21 Years and older
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Probiotics and the Gut Microbiome in Obese Hispanic Youth

NCT03115385
View directory record Official record
Conditions
Obesity, Abdominal, Adiposity
Interventions
VSL#3, Placebo
Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
12 Years to 18 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2017 · Synced Sep 3, 2026, 8:53 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Experimental Tobacco Marketplace in Regulating Flavored Tobacco Products in Menthol Cigarette Smokers

NCT03897530
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Smoking Cessation Intervention, Functional Assessment, Questionnaire Administration
Behavioral · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Sep 3, 2026, 8:53 AM EDT
Not yet recruiting Not applicable Interventional

EXERT-BC Protein: Protein Supplementation to Improve Body Composition After Treatment for Breast Cancer

NCT07704476
View directory record Official record
Conditions
Cancer, Breast Cancer
Interventions
Whey protein (60 grams), No protein
Dietary Supplement · Other
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Twelve Week Study of Virtually Supervised Mouth Rinse and Flossing

NCT04750005
View directory record Official record
Conditions
Healthy
Interventions
Listerine Cool Mint, Colgate Cavity Protection Toothpaste, Reach Unflavored Waxed Dental Floss, American Dental Association (ADA) Ref Toothbrush
Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years to 60 Years
Enrollment
209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 15, 2022 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sex Differences in E-cig Perception: Study 1

NCT05432830
View directory record Official record
Conditions
Nicotine Addiction, E-Cig Use, Cigarette Smoking, Sex Differences
Interventions
E-liquid Flavor 1, E-liquid Flavor 2, E-liquid Flavor 3
Other
Lead sponsor
Yale University
Other
Eligibility
21 Years to 44 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Potentially Addictive Properties of Soda: A Feasibility Study

NCT02044757
View directory record Official record
Conditions
Withdrawal Symptoms
Interventions
SSB withdrawal
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
13 Years to 18 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2014 · Synced Sep 3, 2026, 8:53 AM EDT
Completed Phase 2Phase 3 Interventional

Effect of Nutritional Products on Metabolic Parameters in Subjects With Type 2 Diabetics

NCT01324921
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
No breakfast/beverage only, Breakfast, 10004RF
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
18 Years to 75 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
2
States / cities
Glen Ellyn, Illinois • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 29, 2011 · Synced Sep 3, 2026, 8:53 AM EDT