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ClinicalTrials.gov public records Last synced Oct 19, 2026, 7:48 PM EDT

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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: epicatechin Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating Whole Foods Supplementation on Cognition

NCT01672359
View directory record Official record
Conditions
Sub-optimal Cognitive Function, Sub-optimal Immune Function
Interventions
Ginkgo Synergy® and Choline, OPC Synergy® and Catalyn, Placebo
Dietary Supplement
Lead sponsor
University of Miami
Other
Eligibility
60 Years and older
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Oct 19, 2026, 7:48 PM EDT
Active, not recruiting Phase 2 Interventional

Clinical Trial of Green Tea Catechins in Men on Active Surveillance

NCT04300855
View directory record Official record
Conditions
Prostate Cancer, Prostate Adenocarcinoma
Interventions
Sunphenon, Placebo
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Tampa, Florida • Westwood, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fish Oil and Green Tea Extract in Preventing Prostate Cancer in Patients Who Are at Risk for Developing Prostate Cancer

NCT00253643
View directory record Official record
Conditions
Precancerous Condition, Prostate Cancer
Interventions
green tea catechin extract, fish oil, placebo
Dietary Supplement · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
21 Years to 120 Years · Male only
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
3
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Green Tea Confections For Managing Postprandial Hyperglycemia-Induced Vascular Endothelial Dysfunction

NCT01857258
View directory record Official record
Conditions
Hyperglycemia, Cardiovascular Disease
Interventions
Green Tea Concentrate
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 16, 2017 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dark Chocolate on Exercise Capacity, and Mitochondrial Structure and Function

NCT01671514
View directory record Official record
Conditions
Heart Failure, Type 2 Diabetes
Interventions
Epicatechin-enriched dark chocolate, Low-epicatechin dark chocolate
Dietary Supplement · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 70 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 19, 2026, 7:48 PM 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 6, 2017 · Synced Oct 19, 2026, 7:48 PM EDT
Terminated Phase 2 Interventional

Defined Green Tea Catechin Extract in Treating Patients With Localized Prostate Cancer Undergoing Surgery

NCT01340599
View directory record Official record
Conditions
Stage I Prostate Cancer, Stage IIA Prostate Cancer, Stage IIB Prostate Cancer
Interventions
defined green tea catechin extract, placebo, immunohistochemistry staining method, immunoenzyme technique, questionnaire administration, therapeutic conventional surgery, high performance liquid chromatography, mass spectrometry
Dietary Supplement · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
45 Years to 75 Years · Male only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Phase 1 Interventional

Early Phase Pre-Clinical and Initial Clinical Research on Epicatechin (Part 2)

NCT02656212
View directory record Official record
Conditions
Pre-diabetes
Interventions
epicatechin, Placebo
Drug
Lead sponsor
Veterans Medical Research Foundation
Other
Eligibility
21 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2016 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Epicatechin on Statins for Mitochondrial Dysfunction and Impaired Exercise Capacity

NCT02490527
View directory record Official record
Conditions
Statin Intolerance
Interventions
Pure epicatechin capsules (50mg), Simvastatin (40mg), Placebo
Dietary Supplement · Drug · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
30 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Food Matrix Effect on Flavanol Absorption, Metabolism and Excretion: Methylxanthines

NCT03526107
View directory record Official record
Conditions
Healthy
Interventions
CF Control, CF-Theobromine, CF-Caffeine
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 60 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 10, 2022 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional

Effects of Epicatechin on Functional Capacity, Skeletal Muscle Structure and Diastolic Function in Patients With Heart Failure With Preserved Ejection Fraction (HFPEF)

NCT02068040
View directory record Official record
Conditions
Heart Failure
Interventions
CocoaVia
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 60 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 19, 2026, 7:48 PM 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 2, 2017 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional

Functional Outcomes in CondUction System Pacing and Right Ventricular Synchrony (FOCUS-Right)

NCT06601322
View directory record Official record
Conditions
Left Branch Bundle Block, RV - Right Ventricular Abnormality
Interventions
Pacemaker Interrogation and Electrocardiogram (ECG):, Cardiopulmonary Exercise Test (CPET) and Exercise Stress Cardiac Magnetic Resonance (ExeCMR, Continuous pacemaker telemetry (CPT)
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 19, 2026, 7:48 PM EDT
Terminated Phase 2 Interventional Results available

Green Tea Extract in Treating Patients With Monoclonal Gammopathy of Undetermined Significance and/or Smoldering Multiple Myeloma

NCT00942422
View directory record Official record
Conditions
Multiple Myeloma and Plasma Cell Neoplasm, Precancerous Condition
Interventions
defined green tea catechin extract, gene expression analysis, protein analysis, laboratory biomarker analysis
Dietary Supplement · Genetic · Other
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 27, 2015 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Phase 1 Interventional

Safety and Biomarker Response to (+)-Epicatechin in Becker Muscular Dystrophy

NCT04386304
View directory record Official record
Conditions
Becker Muscular Dystrophy
Interventions
(+)-Epicatechin
Drug
Lead sponsor
Epirium Bio Inc.
Industry
Eligibility
16 Years to 59 Years · Male only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
3
States / cities
Los Angeles, California • Sacramento, California • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Oct 19, 2026, 7:48 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

COcoa Supplement and Multivitamin Outcomes Study: Effects on Falls and Physical Performance

NCT05232669
View directory record Official record
Conditions
Fall, Physical Performance, Fracture
Interventions
Cocoa extract, Cocoa extract placebo, Multivitamin, Multivitamin placebo
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
60 Years and older
Enrollment
21,442 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 19, 2026, 7:48 PM EDT
Recruiting Phase 3 Interventional

The COCOA-PAD II Trial

NCT04794530
View directory record Official record
Conditions
Peripheral Artery Disease
Interventions
cocoa flavanols, placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
55 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
3
States / cities
Chicago, Illinois • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Use of (-)-Epicatechin in the Treatment of Becker Muscular Dystrophy (Pilot Study)

NCT01856868
View directory record Official record
Conditions
Becker Muscular Dystrophy
Interventions
(-)-epicatechin
Drug
Lead sponsor
Craig McDonald, MD
Other
Eligibility
18 Years to 60 Years · Male only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2021 · Synced Oct 19, 2026, 7:48 PM EDT
Withdrawn Phase 1 Interventional

(-)-Epicatechin and Pulmonary Arterial Hypertension

NCT01880866
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
(-)-Epicatechin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2014 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Guayusa Extract on Exercise Training

NCT05820399
View directory record Official record
Conditions
Desire to Exercise, Exercise Training, Physical Exertion
Interventions
Organic Guayusa Extract, Placebo
Dietary Supplement
Lead sponsor
Nathaniel Jenkins
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 19, 2023 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Green Tea Extract (Polyphenon E) in Preventing Cancer in Healthy Participants

NCT00091325
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
defined green tea catechin extract
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 20, 2010 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating the Effects of Cocoa Flavanol on Cognition Assessed Online

NCT04582617
View directory record Official record
Conditions
Aging, Cognitive Change
Interventions
Cocoa Extract, Cocoa Extract Placebo, Multivitamin, Multivitamin placebo
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
65 Years and older
Enrollment
3,959 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2023 · Synced Oct 19, 2026, 7:48 PM EDT
Completed Phase 1 Interventional

Defined Green Tea Catechin Extract in Treating Women With Hormone Receptor Negative Stage I-III Breast Cancer

NCT00516243
View directory record Official record
Conditions
Estrogen Receptor-negative Breast Cancer, Progesterone Receptor-negative Breast Cancer, Stage I Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer
Interventions
placebo, quality-of-life assessment, questionnaire administration, laboratory biomarker analysis, defined green tea catechin extract
Other · Procedure · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
21 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
4
States / cities
New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2014 · Synced Oct 19, 2026, 7:48 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Developing a Nutritional Supplement to Increase Collagen Synthesis in People

NCT06138106
View directory record Official record
Conditions
Dietary Supplements, Connective Tissue, Exercise
Interventions
Natural Product Supplement, Placebo control
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 19, 2026, 7:48 PM EDT