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ClinicalTrials.gov public records Last synced Oct 17, 2026, 6:10 PM EDT

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Showing 1–24 of 121 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Grape Clear all
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 16, 2021 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Red Wine and White Wine on Blood Estrogen and Progesterone Levels

NCT00572351
View directory record Official record
Conditions
Healthy
Interventions
Red Wine, White Wine
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
21 Years and older · Female only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional

The Effect of Whole Beans on Inflammation and Satiety

NCT01190384
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Couscous plus fiber, Grape seed extract, Bean Soup
Other · Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Acute Grape Seed Extract Supplementation on Muscle Metaboreflex in Healthy Young Individuals

NCT05945771
View directory record Official record
Conditions
Dietary Supplementation
Interventions
Grape seed extract
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 30 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2023 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Juice on Gastrointestinal Tolerance and Breath Hydrogen Response in Human Subjects

NCT02565472
View directory record Official record
Conditions
Food Selection
Interventions
White grape juice, Apple juice
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2015
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 24, 2016 · Synced Oct 17, 2026, 6:10 PM 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 26, 2018 · Synced Oct 17, 2026, 6:10 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effect of Portion Sizes on Mood

NCT01725425
View directory record Official record
Conditions
Mood, Eating Patterns
Interventions
Control, Increase Portion Size, Decrease Portion Size, Mixed Portions
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 35 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2025
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Assessment Study Via Digital Images

NCT03267004
View directory record Official record
Conditions
Diet Habit
Interventions
Dietary Assessment of Meal A using images taken by Sony Smarteyeglass, Dietary Assessment of Meal B using Images taken by Sony Smarteyeglass
Device
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glycemic Index of Table Grape Varietals

NCT03248609
View directory record Official record
Conditions
Healthy
Interventions
Milano grapes, Table grapes, Grape juice, Glucose beverage
Other
Lead sponsor
University of California, Davis
Other
Eligibility
21 Years to 75 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Results available

The BRAINFOOD Trial to Prevent Recurrent Hepatic Encephalopathy.

NCT04675775
View directory record Official record
Conditions
Cirrhosis, Ascites, Liver Diseases, Frailty, Sarcopenia, Hepatic Encephalopathy
Interventions
Medically-tailored meals (MTM), Protein supplements, Nutrition education handout
Other · Dietary Supplement · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Prevention of Photodamage in Skin With Grapes

NCT02760160
View directory record Official record
Conditions
Non-melanoma Skin Cancer
Interventions
Reconstituted grape powder
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 99 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 8, 2019 · Synced Oct 17, 2026, 6:10 PM 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 15, 2013 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Acute Dietary Supplementation With Grape Seed Extract on Aortic Stiffness, Arterial Pressure, and Blood Vessel Dilation in Collegiate Obese Individuals at Rest

NCT04389060
View directory record Official record
Conditions
Obesity
Interventions
Grape seed extract
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 29 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated May 15, 2020 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose-dependent Effect of Grape Seed Extract on Glucose Control in People With Impaired Glucose Tolerance

NCT02254317
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
0 mg placebo, 300 mg GSE, 600 mg GSE, 900 mg GSE
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
40 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 28, 2021 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Concord Grape Juice on Endothelial Function

NCT01775748
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Active Concord Grape Juice 12 oz per day, Placebo Grape Juice 12 oz per day
Other
Lead sponsor
Boston University
Other
Eligibility
50 Years and older
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 12, 2018 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Phase 2 Interventional

Impact of Grape Consumption on Brain Metabolism and Neuropsychological Performance Over 1 Year

NCT03361410
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years to 85 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 17, 2026, 6:10 PM EDT
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 17, 2026, 6:10 PM EDT
Terminated Phase 2 Interventional

Xylitol BSI Multisite - Reduction of Bloodstream Infections From Oral Organisms in Pediatric Stem Cell Transplant

NCT05579639
View directory record Official record
Conditions
Allogeneic Stem Cell Transplantation
Interventions
Xylitol, Placebo
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
4 Months to 25 Years
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Aurora, Colorado • Boston, Massachusetts • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 17, 2026, 6:10 PM EDT
Not listed Not applicable Interventional

Diabetic Retinopathy Functional Evaluation Study: Monitoring Carotenoid Vitamins Treatment Using ERG

NCT04117022
View directory record Official record
Conditions
Diabetes, Diabetic Retinopathy
Interventions
DVS supplementation
Dietary Supplement
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
21 Years to 80 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
2
States / cities
Pomona, California • Tahlequah, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 23, 2021 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Phase 1 Interventional

Clinical Trial to Evaluate the Safety of PT150 (Formerly ORG34517) When it is Taken Concurrently With Alcohol

NCT03548714
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Interaction
Interventions
PT150, Beverage
Drug · Other
Lead sponsor
Pop Test Oncology LLC
Industry
Eligibility
21 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 22, 2019 · Synced Oct 17, 2026, 6:10 PM EDT
Withdrawn Phase 1 Interventional

Postoperative Ibuprofen Use and Risk of Bleeding in Pediatric Tonsillectomy

NCT03385057
View directory record Official record
Conditions
Tonsillectomy With or Without Adenoidectomy
Interventions
Ibuprofen, Acetaminophen
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
2 Years to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
5
States / cities
San Diego, California • Atlanta, Georgia • Cleveland, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2018 · Synced Oct 17, 2026, 6:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cigarillo Warnings Image Sorting Study

NCT05838378
View directory record Official record
Conditions
Smoking, Cigar
Interventions
Package image sorting with pictorial warnings, Package image sorting with Surgeon General text-only warnings, Package image sorting with FDA text-only warnings
Other
Lead sponsor
Boston University
Other
Eligibility
21 Years to 35 Years
Enrollment
764 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Oct 17, 2026, 6:10 PM 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 6, 2025 · Synced Oct 17, 2026, 6:10 PM EDT
Terminated Not applicable Interventional

Vision Preservation and Restoration Following a 6 Month Trial of GlaucoCetin

NCT04784234
View directory record Official record
Conditions
Primary Open Angle Glaucoma
Interventions
GlaucoCetin, Placebo
Dietary Supplement · Other
Lead sponsor
Wills Eye
Other
Eligibility
40 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 17, 2026, 6:10 PM EDT