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ClinicalTrials.gov public records Last synced Oct 1, 2026, 8:05 AM EDT

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Showing 49–72 of 192 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: placebo juice Clear all
Completed Not applicable Interventional

Prebiotics, Gut Microbiota, and Cardiometabolic Health

NCT02346838
View directory record Official record
Conditions
Prediabetes
Interventions
Inulin, Placebo
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

N-Acetyl-Cysteine (NAC) in Early Phase Schizophrenia Spectrum Psychosis

NCT01354132
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 5, 2017 · Synced Oct 1, 2026, 8:05 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Phytonutrients on Vascular Health and Skin in Obese Males

NCT03496584
View directory record Official record
Conditions
Erythema, Inflammation
Interventions
Pomegranate Juice, Placebo Juice
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 19, 2021 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Acute Alcohol Intoxication on Neural Processes During Decisions to Engage in HIV Risk Behaviors

NCT04360018
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional

Effect of Inorganic Nitrates (Beetroot Juice) on Arterial Hemodynamics and Exercise Capacity

NCT01919177
View directory record Official record
Conditions
Heart Failure With Normal Ejection Fraction
Interventions
Nitrate rich beetroot juice, Nitrate depleted beetroot juice
Dietary Supplement
Lead sponsor
Corporal Michael J. Crescenz VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 28, 2015 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Energy Drink Brands on Heart Rhythm

NCT03196908
View directory record Official record
Conditions
Electrical Alternation of Heart, Blood Pressure
Interventions
Energy Drink Brand 1, Energy Drink Brand 2, Placebo
Dietary Supplement · Other
Lead sponsor
University of the Pacific
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Stockton, California
Source: ClinicalTrials.gov public record
Updated Dec 24, 2018 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Oral Bacterial Extract for the Prevention of Wheezing Lower Respiratory Tract Illness

NCT02148796
View directory record Official record
Conditions
Asthma, Wheezing
Interventions
Broncho-Vaxom (BV), Placebo
Drug · Other
Lead sponsor
University of Arizona
Other
Eligibility
6 Months to 18 Months
Enrollment
822 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
11
States / cities
Phoenix, Arizona • Tucson, Arizona • Oakland, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Inorganic Nitrate and OSA

NCT03930563
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Pre-beetroot juice supplementation, Post-beetroot juice supplementation
Dietary Supplement
Lead sponsor
University of Iowa
Other
Eligibility
30 Years to 70 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Nitric Oxide Supplementation Product on Endothelial Dysfunction and Prehypertensive Adults

NCT03895749
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Effect of Beetroot Juice on Coronary Blood Flow and Walking Performance in PAD

NCT02553733
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Beetroot juice, Beetroot juice placebo
Drug
Lead sponsor
David N. Proctor, PhD
Other
Eligibility
21 Years to 85 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impacts of Aronia on Inflammation and the Gut Microbiome

NCT04128839
View directory record Official record
Conditions
Metabolic Syndrome, Inflammation, Hypertriglyceridemia, Obesity
Interventions
Aronia berry juice, Sham comparator
Dietary Supplement · Other
Lead sponsor
Montana State University
Other
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Jan 16, 2024 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of Oral Plaque Removal Utilizing an Adjunct Enzyme Pre-rinse

NCT04512482
View directory record Official record
Conditions
Dental Plaque, Dental Caries
Interventions
Bromelain, Powdered sugar
Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
10 Years to 25 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tart Cherry Juice for Sleep in Older Adults With Insomnia: A Pilot Study of Feasibility and Comprehensive Mechanisms

NCT06786494
View directory record Official record
Conditions
Sleep Problems, Insomnia
Interventions
Tart Cherry Juice, Placebo juice
Other
Lead sponsor
Courtney Millar
Other
Eligibility
65 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of the Attenuation by Aes-103 of Hypoxia Mediated Decrements in Endurance Exercise Performance

NCT01871142
View directory record Official record
Conditions
Hypoxia
Interventions
Placebo, Aes-103
Drug
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 24, 2014 · Synced Oct 1, 2026, 8:05 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of SYNB1934 in Patients With PKU (SYNPHENY-3)

NCT05764239
View directory record Official record
Conditions
Phenylketonuria
Interventions
SYNB1934v1, Placebo
Drug
Lead sponsor
Synlogic
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
14
States / cities
Culver City, California • Orange, California • Palo Alto, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 20, 2024 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 3 Interventional Results available

A Study of PTC923 in Participants With Phenylketonuria

NCT05099640
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 10, 2024 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Neural Mechanisms Underlying Nicotine and Alcohol Combinations

NCT02049268
View directory record Official record
Conditions
Focus: Effects of Nicotine and Alcohol on Brain Circuits
Interventions
Nicotine + Alcohol, Placebo Nicotine + Alcohol, Nicotine + Placebo Alcohol
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
21 Years to 40 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 3, 2017 · Synced Oct 1, 2026, 8:05 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Ketone Conferred Resiliency Against Sleep Restriction With Nutritional Intervention.

NCT06075914
View directory record Official record
Conditions
Sleep Deprivation, Nutritional Intervention
Interventions
Ketogenic Intervention, Mediterranean Intervention, Placebo, Ketone Ester
Other · Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional

Cranberry Juice for the Prevention of Recurrent Urinary Tract Infections

NCT00128128
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 4, 2015 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Leucine on Body Weight

NCT00683826
View directory record Official record
Conditions
Overweight, Obesity
Interventions
L-Leucine 8gr, Liquid meal, L-Leucine 4g
Dietary Supplement · Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 5, 2013 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Antioxidant Responses to Exercise and Cherry Consumption

NCT03522779
View directory record Official record
Conditions
Dietary Modification
Interventions
Tart cherry Juice, High-fat meal, Exercise
Dietary Supplement · Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated May 11, 2018 · Synced Oct 1, 2026, 8:05 AM EDT
Not yet recruiting Not applicable Interventional

Inorganic Nitrate as a Treatment for ANOCA: NO-ANOCA

NCT06948201
View directory record Official record
Conditions
Coronary Microvascular Dysfunction (CMD), Angina Patients With Non-obstructive Coronary Artery Disease
Interventions
70mL Nitrate Rich Beetroot Juice followed by placebo (Nitrate depleted beetroot juice), Placebo (70 mL Nitrate depleted beetroot juice) followed by 70mL Nitrate Rich Beetroot Juice
Dietary Supplement
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Postmenopausal Women and Their Endothelium

NCT03644472
View directory record Official record
Conditions
Postmenopausal Women
Interventions
nitrate rich beetroot juice, nitrate depleted beetroot juice
Drug
Lead sponsor
Penn State University
Other
Eligibility
Up to 70 Years · Female only
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Oct 1, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Trial to Evaluate the Use of Pomegranate Concentrate (POMx) for the Prevention of Experimental Rhinovirus Infection

NCT00655031
View directory record Official record
Conditions
Common Cold
Interventions
Pomegranate Concentrate (POMx), Placebo
Dietary Supplement
Lead sponsor
POM Wonderful LLC
Industry
Eligibility
18 Years to 45 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
3
States / cities
Huntsville, Alabama • Melbourne, Florida • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 18, 2008 · Synced Oct 1, 2026, 8:05 AM EDT