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ClinicalTrials.gov public records Last synced Sep 26, 2026, 1:33 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Phase 1 Interventional Accepts healthy volunteers

Alcohol Inhibits Drug Metabolism by Carboxylesterases

NCT01708369
Conditions
Drug Interactions
Interventions
Placebo, Ethanol, Oseltamivir, Aspirin
Drug
Lead sponsor
University of Tennessee
Other
Eligibility
21 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Memphis, Tennessee
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Watermelon on Cardiometabolic Health

NCT07006636
Conditions
Cardiometabolic Health Indicators, Whole-body Antioxidant Capacity
Interventions
Watermelon Juice + liquid meal test at baseline, Sweetened placebo beverage +liquid meal test at baseline
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Atrial Fibrillation
Interventions
mangosteen juice, placebo juice
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Schizophrenic Psychoses
Interventions
n-acetylcysteine, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
2
States / cities
Boston, Massachusetts
Conditions
Cardiovascular Diseases
Interventions
Energy drink, Placebo drink
Other
Lead sponsor
University of the Pacific
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Stockton, California
Conditions
Alcohol Consumption
Interventions
Alcohol beverage, Placebo beverage
Other
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

Effects of 100% Orange Juice on Skin Health in Women

NCT04861623
Conditions
Skin Health
Interventions
Orange juice, Placebo juice (SunnyD)
Other
Lead sponsor
University of Florida
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Hypertension
Interventions
NEO40 Daily
Dietary Supplement
Lead sponsor
Hypertension Institute, Nashville
Other
Eligibility
18 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Completed Phase 3 Interventional Results available

A Study of PTC923 in Participants With Phenylketonuria

NCT05099640
Conditions
Phenylketonuria
Interventions
PTC923, Placebo
Drug
Lead sponsor
PTC Therapeutics
Industry
Eligibility
Not listed
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
12
States / cities
Stanford, California • Aurora, Colorado • Gainesville, Florida + 9 more
Conditions
Males, Females, Sedentary, Metformin, Prediabetes
Interventions
Dietary Supplement: Inorganic Nitrate (Beetroot juice), Dietary supplement: Placebo (Nitrate-depleted beetroot juice)
Dietary Supplement
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed Not applicable Interventional Accepts healthy volunteers

Availability of Vitamin D in Orange Juice

NCT01778114
Conditions
Vitamin D Deficiency
Interventions
Vitamin D2 in orange juice, Vitamin D3 in orange juice, Vitamin D2, Vitamin D3, Placebo
Dietary Supplement · Other
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Novel Metabolites of Beta-Carotene and Lycopene

NCT02550483
Conditions
Healthy
Interventions
Base diet + high beta-carotene tomato juice, Base diet + high lycopene tomato juice, Base diet + placebo beverage
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
21 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Beltsville, Maryland
Conditions
Hyperkalemia
Interventions
Patiromer Powder for Oral Suspension [Veltassa], Placebo
Drug
Lead sponsor
Comprehensive Research Associates
Industry
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
19
States / cities
Stanford, California • New Haven, Connecticut • Newark, Delaware + 13 more
Conditions
Aging
Interventions
Beetroot Juice, Placebo Beetroot Juice
Dietary Supplement · Other
Lead sponsor
Marquette University
Other
Eligibility
60 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Metabolic Syndrome
Interventions
Beetroot Juice - Active, beetroot juice - Placebo
Drug
Lead sponsor
Penn State University
Other
Eligibility
55 Years to 75 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
University Park, Pennsylvania
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1521498 Alcohol Interaction Study

NCT01366573
Conditions
Alcoholism
Interventions
GSK1521498, Placebo
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
21 Years to 55 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Austin, Texas
Conditions
Post Traumatic Stress Disorder, Trauma
Interventions
Beetroot Juice, Placebo Juice
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota
Completed Not applicable Interventional Accepts healthy volunteers

Impact of JuicePlus+ on the Health Status of an Overweight Stressed Population

NCT02512107
Conditions
Inflammation
Interventions
Juice Plus+, Placebo
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
25 Years to 50 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Mild Cognitive Impairment
Interventions
Elderberry Juice, Placebo
Biological · Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
50 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Columbia, Missouri
Conditions
Allergy
Interventions
Fexofenadine HCI
Drug
Lead sponsor
Sanofi
Industry
Eligibility
12 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002
U.S. locations
1
States / cities
Bridgewater, New Jersey
Conditions
Respiratory Failure
Interventions
Nitrate Rich Beetroot Juice, Placebo
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
56 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Conditions
Patients at Risk for Melanoma
Interventions
N-acetylcysteine, Placebo arm
Drug · Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Urinary Tract Infections
Interventions
Cranberry juice cocktail
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
2
States / cities
New Haven, Connecticut • Seattle, Washington
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Nitrate-rich Fruit and Vegetable Supplement on Blood Pressure

NCT03486145
Conditions
High Blood Pressure, Flow Mediated Dilation
Interventions
fruit and vegetable juice supplement, Placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 40 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Phoenix, Arizona