Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 8, 2026, 11:02 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Polyphenols Clear all
Terminated Phase 2 Interventional Results available

Randomized Proof-of-Concept Trial to Evaluate the Safety and Explore the Effectiveness of Resveratrol, a Plant Polyphenol, for COVID-19

NCT04400890
View directory record Official record
Conditions
COVID-19
Interventions
Resveratrol, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
Marvin McCreary, MD
Other
Eligibility
45 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Absorption, Metabolism and Excretion of Dietary Polyphenolic Bioactives in Humans

NCT03194620
View directory record Official record
Conditions
Healthy
Interventions
Thearubigins, Theaflavins, Procyanidin Dimer B2 (DB2), (-)-Epigallocatechin-3-O-gallate (EGCG), (-)-Epicatechin-3-O-gallate (ECG), (-)-Epicatechin (EC), (-)-Epigallocatechin (EGC), Control
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 60 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Sep 8, 2026, 11:02 AM EDT
Not listed Phase 1Phase 2 Interventional

Biological Effects of Quercetin in COPD

NCT03989271
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Quercetin
Drug
Lead sponsor
Temple University
Other
Eligibility
40 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Sep 8, 2026, 11:02 AM EDT
Terminated Phase 2 Interventional Results available

The Impact of Pomegranate Extract on Chronic Cardiomyopathy Complicated by Renal Insufficiency (ImPrOVE): a Pilot Study

NCT01102140
View directory record Official record
Conditions
Cardiomyopathy, Heart Failure
Interventions
POMx, pomegranate polyphenol extract, Sugar Pill
Drug
Lead sponsor
Jennifer Cowger , MD, MS
Other
Eligibility
21 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
2
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 13, 2017 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interaction of Salivary Proteins and Polyphenols

NCT03501238
View directory record Official record
Conditions
Diet Habit, Diet Modification, Taste, Altered, Saliva Altered
Interventions
Chocolate Milk, Chocolate milk substitute, Chocolate milk substitute with gelatin
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 24, 2023 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Red Raspberries on Insulin Action and Oxidative Stress

NCT02479035
View directory record Official record
Conditions
Insulin Resistant
Interventions
Red raspberry meal 1, Red raspberry meal 2, Control meal
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 4, 2021 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Phase 1Phase 2 Interventional

Development of a Polyphenol-rich Dietary Preparation for Treating Veterans With Gulf War Illness

NCT02915237
View directory record Official record
Conditions
Gulf War Illness
Interventions
Concord grape juice, Placebo Beverage
Dietary Supplement
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
East Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 28, 2020 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Aronia Berries on Vascular Endothelial Function and the Gut Microbiota in Middle-Aged/Older Adults

NCT03824041
View directory record Official record
Conditions
Endothelial Dysfunction, Aging
Interventions
Aronia full spectrum - half dose, Aronia full spectrum - full dose, Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
45 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Absorption, Metabolism and Excretion of Apigenin and Apigenin Glycosides

NCT03526081
View directory record Official record
Conditions
Healthy
Interventions
Chamomile Tea, Parsley based drink, Parsley Yogurt, Apigenin, Parsley-based drink (II)
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 60 Years · Male only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 22, 2019 · Synced Sep 8, 2026, 11:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Efficacy of a Tea Catechin Sports Drink for Enhancing Exercise-Induced Fat Loss

NCT00692731
View directory record Official record
Conditions
Overweight, Obesity
Interventions
500 mL/day of a beverage providing approximately 625 mg catechins, Control beverage matched for energy and caffeine content
Dietary Supplement · Other
Lead sponsor
Provident Clinical Research
Other
Eligibility
21 Years to 65 Years
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
2
States / cities
St. Petersburg, Florida • Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 5, 2008 · Synced Sep 8, 2026, 11:02 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Gut Microbiota-dependent Health Impacts of Haskap Berries

NCT06546020
View directory record Official record
Conditions
Metabolic Disease, Inflammation, Microbial Colonization
Interventions
Haskap berry smoothie, Placebo comparator
Dietary Supplement
Lead sponsor
Montana State University
Other
Eligibility
35 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Sep 8, 2026, 11:02 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Berries, Inflammation, and Gut Microbiome

NCT04100200
View directory record Official record
Conditions
Overweight or Obesity, Healthy
Interventions
Mixed berries, FOS, Control, Combination
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 60 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Absorption and Metabolism of Dietary Cocoa Procyanidins in Humans

NCT01483508
View directory record Official record
Conditions
Healthy
Interventions
Flavanol- and procyanidins-containing drink, Procyanidins-containing drink, Flavanol-containing drink
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2012 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Scavenging of Reactive Carbonyl Species by Apple Polyphenols in Human

NCT03911050
View directory record Official record
Conditions
Human Health, Polyphenols, Pharmacokinetics
Interventions
Apple consumption, Control group
Dietary Supplement
Lead sponsor
North Carolina Agriculture & Technical State University
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Blueberry Study

NCT04421950
View directory record Official record
Conditions
Healthy
Interventions
Wild blueberry containing foods, Placebo containing foods
Dietary Supplement
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
11 Years to 12 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional

Blueberries for Improving Vascular Endothelial Function in Postmenopausal Women With Elevated Blood Pressure

NCT03370991
View directory record Official record
Conditions
Menopause, Elevated Blood Pressure, Hypertension, Endothelial Dysfunction
Interventions
Blueberry Powder, Placebo Powder
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolic Response to Chardonnay Grape Marc Powder

NCT03203915
View directory record Official record
Conditions
Dyslipidemia, Obesity
Interventions
Chardonnay grape marc marc high polyphenol dose (120mg), Chardonnay grape marc powder low polyphenol dose (75mg), Placebo (0mg)
Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
35 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2021 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Inflammation, Polyphenols, and Genetics

NCT01568827
View directory record Official record
Conditions
Overweight, Obese
Interventions
Blackraspberry Slurry
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
55 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose Effect of a Plant Extract on Fatigue

NCT03870126
View directory record Official record
Conditions
Mental Energy, Physical Performance
Interventions
Flavored beverage
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 49 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Banana Cultivars and Exercise Performance and Recovery

NCT02994628
View directory record Official record
Conditions
Inflammation
Interventions
Water, Mini banana, Cavendish banana, 6% sugar beverage
Other
Lead sponsor
Appalachian State University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Concord Grape Polyphenol-soy Protein Isolate Complex (GP-SPI) on Gut Microbiota

NCT04018066
View directory record Official record
Conditions
Mechanisms, Defense
Interventions
GP-SPI
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 35 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Postprandial Glycemic Response to Polyphenol-fortified Snack Bars

NCT02763020
View directory record Official record
Conditions
Blood Sugar Response
Interventions
Fruit extracts high in polyphenols, placebo
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 11, 2017 · Synced Sep 8, 2026, 11:02 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of AppleX™ Apple Extract on Anti-Inflammatory and Healthy Aging Effects

NCT07678346
View directory record Official record
Conditions
Systemic Inflammation (hsCRP), Healthy Aging, Vitality, Healthy Adult Participants
Interventions
Apple Extract, Placebo
Dietary Supplement · Other
Lead sponsor
Nutraland USA, Inc.
Industry
Eligibility
45 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 8, 2026, 11:02 AM EDT
Completed Phase 1 Interventional

Effects of Dark Chocolate on Insulin Sensitivity in People With High Blood Pressure

NCT00099476
View directory record Official record
Conditions
Hypertension
Interventions
Effects of dark chocolate
Behavioral
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
21 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 8, 2026, 11:02 AM EDT