Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 17, 2026, 7:00 PM EDT

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Showing 25–48 of 121 matching trials from the live ClinicalTrials.gov search.
Conditions
Parkinson's Disease
Interventions
Trans-Resveratrol
Drug
Lead sponsor
Georgetown University
Other
Eligibility
55 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Mild Cognitive Impairment
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Recurrent Prostate Cancer
Interventions
MGE, Placebo, ADT
Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Male only
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
2
States / cities
Salisbury, North Carolina • Winston-Salem, North Carolina
Conditions
Colon Cancer
Interventions
grapes
Dietary Supplement
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Orange, California
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nutraceutical Effects on Long-Term Memory

NCT01963767
Conditions
Aging
Interventions
NT-020, Placebo
Drug · Dietary Supplement
Lead sponsor
University of South Florida
Other
Eligibility
65 Years to 85 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Tampa, Florida
Conditions
Mental Processes, Cognitive Change, Mood Change
Interventions
Placebo, Enovita Grape Seed Extract, Mirtoselect Bilberry Extract, Virtiva Plus Ginko Biloba Extract
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
25 Years to 55 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Tampa, Florida
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
Conditions
Obesity &Amp; Overweight
Interventions
Freeze-dried grape powder, Placebo powder
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbia, Missouri
Conditions
Cardiovascular Disease
Interventions
CardioLife
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 90 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Daily Grapes Intake on Sarcopenia in Postmenopausal Women

NCT05863507
Conditions
Sarcopenia
Interventions
Grape powder supplementation, Placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
60 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Davis, California
Conditions
Healthy
Interventions
Table Grape Powder, Beige Diet
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Prostate Cancer
Interventions
Metformin, OPC
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older · Male only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Conditions
Obesity, Inflammation
Interventions
Grape powder, followed by placebo powder, Placebo powder followed by grape powder
Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
20 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Davis, California
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Raisins Versus Alternative Snacks on Cardiovascular Risk Factors In Generally Healthy Subjects

NCT01260272
Conditions
Cardiovascular Risk Factors
Interventions
Alternative Snack Comparator, Raisins
Other
Lead sponsor
Louisville Metabolic and Atherosclerosis Research Center
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Louisville, Kentucky
Conditions
Cardiovascular Risk Factor
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
30 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Tucson, Arizona
Conditions
DNA Damage
Interventions
Noni juice, Placebo
Dietary Supplement
Lead sponsor
Tahitian Noni International, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
Rockford, Illinois
Completed Not applicable Interventional Accepts healthy volunteers

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

NCT01694043
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
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Assessing the Value of Avocados on Glycemic Control in Type 2 Diabetes

NCT05958368
Conditions
Diabetes Mellitus, Type 2, Insulin, Fructosamine, C-Reactive Protein, Glucose, Overweight and Obesity
Interventions
Avocado, Other Fruit(s)
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baton Rouge, Louisiana
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
Recruiting Not applicable Interventional Accepts healthy volunteers

The Influence of Chardonnay Marc Intake on Gut and Cardiometabolic Health

NCT06476795
Conditions
Cardiovascular Diseases, Adiposity, Cardiometabolic Syndrome
Interventions
Chardonnay Marc
Other
Lead sponsor
University of California, Davis
Other
Eligibility
45 Years to 70 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Davis, California
Conditions
Early Stage Lung Cancer (I and II)
Interventions
leucoselect phytosome
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
San Diego, California
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Grape Seed Extract on Estrogen Levels of Postmenopausal Women

NCT00566553
Conditions
Breast Cancer
Interventions
Grape Seed Extract
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
55 Years to 75 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
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
Completed Not applicable Interventional Accepts healthy volunteers

Improving Protein Intake in Older Adults

NCT05175391
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