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 2, 2026, 6:23 AM EDT

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

Showing 1–24 of 120 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Grape Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Improving Protein Intake in Older Adults

NCT05175391
View directory record Official record
Conditions
Food Preferences
Interventions
Meat based protein with added spice; Plant based protein with added spice
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
60 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing the Variety of Vegetables and Fruits Served to Preschool Children at a Snack

NCT01557218
View directory record Official record
Conditions
Obesity, Feeding Behaviors
Interventions
Cucumber snack, Pepper snack, Tomato snack, Vegetable variety snack, Apple snack, Peach snack, Pineapple snack, Fruit variety snack
Other
Lead sponsor
Penn State University
Other
Eligibility
3 Years to 6 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Early Phase 1 Interventional Results available

Muscadine Grape Extract to Improve Fatigue

NCT04495751
View directory record Official record
Conditions
Fatigue
Interventions
Muscadine grape extract, Placebo, Quality of Life Assessment, Questionnaires, Participant Feedback
Dietary Supplement · Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Sep 2, 2026, 6:23 AM EDT
Recruiting Phase 1Phase 2 Interventional

Anthocyanin-Rich Table Grape Powder for Prophylaxis of Post-Operative Atrial Fibrillation

NCT05991700
View directory record Official record
Conditions
Post-operative Atrial Fibrillation (POAF)
Interventions
Freeze-Dried California Table Grape, Placebo
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 79 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Muscadine Grape Seed Supplementation and Vascular Function

NCT01011517
View directory record Official record
Conditions
Dietary Supplements
Interventions
Muscadine grape seed supplement
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 8, 2018 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Phase 1 Interventional

Physiological Effects of Grape Seed Extract in Diastolic Heart Failure

NCT01185067
View directory record Official record
Conditions
Diastolic Heart Failure, Hypertensive Heart Disease, Heart Failure With Preserved Ejection Fraction, Hypertension, Oxidative Stress
Interventions
grape seed extract (MegaNatural BP, Polyphenolics, Inc.)
Drug
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional

Effect of Grapes in Inflammatory Bowel Disease

NCT05972694
View directory record Official record
Conditions
Crohn Disease
Interventions
Freeze dried grape powder
Dietary Supplement
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Watching a Television Show on the Liking of Snack Foods

NCT01694043
View directory record Official record
Conditions
Measure Grams and Kcals of Snack Foods Consumed in Each Condition
Interventions
Healthy Foods, Unhealthy Snack Foods
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 2, 2026, 6:23 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Neural Correlates During Alcohol Intoxication

NCT06118580
View directory record Official record
Conditions
Alcohol Use Disorder, Intermittent Explosive Disorder
Interventions
Alcohol (Ethanol), Placebo
Drug
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 55 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional

A Study of Grape Seed Extract in Asymptomatic Non-Metastatic Prostate Cancer Patients With Rising PSA

NCT03087903
View directory record Official record
Conditions
Prostate Cancer
Interventions
Grape Seed Extract
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 99 Years · Male only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Aurora, Colorado • Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Sep 2, 2026, 6:23 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of the Potential of Grape Consumption to Improve Muscle Strength and Cognitive Function

NCT07208916
View directory record Official record
Conditions
Healthy
Interventions
Grape Powder
Dietary Supplement
Lead sponsor
Western New England University
Other
Eligibility
65 Years and older · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 5, 2025 · Synced Sep 2, 2026, 6:23 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 4, 2013 · Synced Sep 2, 2026, 6:23 AM EDT
Not listed Not applicable Interventional

Prospective Study of Adjunctive Carotenoids Plus Anti-oxidants in Anti-VEGF Treated Diabetic Macular Edema

NCT03866005
View directory record Official record
Conditions
Center-involved Diabetic Macular Edema (CI-DME)
Interventions
Diabetes Visual Function Study (DiVFuSS) softgels, canola oil placebo softgels, 2 per day
Dietary Supplement · Other
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Olympia, Washington • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Chronic Dietary Grape Seed Extract Supplementation on Aortic Stiffness and Hemodynamic Responses to Exercise in Obese Males

NCT04465110
View directory record Official record
Conditions
Obesity Adult Onset
Interventions
Grape Seed Extract
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 29 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Sep 2, 2026, 6:23 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 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety Evaluation of a Diet and Nutritional Supplementation Program- Purify 2.0

NCT03685552
View directory record Official record
Conditions
Gastrointestinal Symptoms
Interventions
Prog: Purify-2
Other
Lead sponsor
Nature's Sunshine Products, Inc.
Industry
Eligibility
18 Years to 69 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lehi, Utah
Source: ClinicalTrials.gov public record
Updated Sep 25, 2018 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Blood Pressure Lowering Effects of Grape Juice

NCT00302809
View directory record Official record
Conditions
Hypertension
Interventions
Concord Grape Juice
Dietary Supplement
Lead sponsor
Boston University
Other
Eligibility
21 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 17, 2009 · Synced Sep 2, 2026, 6:23 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 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Xoçai Antioxidant Supplements on Atherosclerosis Risk Factors

NCT00666250
View directory record Official record
Conditions
Hypertension, Dyslipidemia, Hyperglycemia
Interventions
Xocai Activ drink
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 95 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of 7 Days of Grape Seed Extract Supplementation on Cold Pressor Test and Muscle Metaboreflex in Individuals With Elevated and Stage 1 Hypertension

NCT06428890
View directory record Official record
Conditions
Prehypertension
Interventions
Grape Seed Extract, Placebo
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Phase 1 Interventional Results available

Purple Grape Juice in Improving Vascular Health in Childhood Cancer Survivors

NCT01043939
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Purple Grape Juice, Apple Juice
Other
Lead sponsor
University of Minnesota
Other
Eligibility
10 Years to 30 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 30, 2014 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A 12 Week, 3-Period Study to Evaluate the Effects of a Dietary Supplement on Lipid Metabolism

NCT02366156
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Placebo, Low Dose Grape Blend, High Dose Grape Blend
Dietary Supplement
Lead sponsor
Access Business Group
Industry
Eligibility
18 Years to 70 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Freeze-Dried Whole Grape Powder on Chronic Disease and Cardiovascular Risk Factors-a Pilot Study

NCT06006182
View directory record Official record
Conditions
Healthy People
Interventions
Grape Powder
Other
Lead sponsor
California State Polytechnic University, Pomona
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pomona, California
Source: ClinicalTrials.gov public record
Updated Jul 18, 2024 · Synced Sep 2, 2026, 6:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Grape Polyphenol Kinetics in Humans

NCT01751750
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Grape
Other
Lead sponsor
Janet Novotny
Federal
Eligibility
Up to 59 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Beltsville, Maryland
Source: ClinicalTrials.gov public record
Updated May 24, 2017 · Synced Sep 2, 2026, 6:23 AM EDT