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ClinicalTrials.gov public records Last synced Oct 2, 2026, 7:05 AM EDT

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Showing 49–72 of 92 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo Seeding Clear all
Completed Not applicable Interventional

Effect of a Grape Seed Extract (GSE) on Insulin Resistance

NCT01889368
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Grape Seed Extract, Placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
20 Years to 70 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Oct 2, 2026, 7:05 AM EDT
Active, not recruiting Phase 2 Interventional

Sulforaphane in a New Jersey (NJ) Population of Individuals With Autism

NCT02677051
View directory record Official record
Conditions
Autism, Autistic Disorder, Autism Spectrum Disorder, Autistic Behavior
Interventions
Sulforaphane, Placebo
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
13 Years to 30 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Oct 2, 2026, 7:05 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Soup and Bread Recipe Impacts on Ingestive Behavior

NCT07146958
View directory record Official record
Conditions
Obesity &Amp; Overweight
Interventions
Chia seeds, Hemp seeds, Placebo
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
25 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Beltsville, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Oct 2, 2026, 7:05 AM EDT
Recruiting Phase 2 Interventional

Cannabidiol for Reduction of Brain Neuroinflammation

NCT05066308
View directory record Official record
Conditions
Back Pain, Depressive Symptoms
Interventions
CBD, Placebo
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Oct 2, 2026, 7:05 AM 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 2, 2026, 7:05 AM EDT
Completed Phase 3 Interventional

Gluten Sensitivity in Non-Celiac Patients

NCT01485341
View directory record Official record
Conditions
Gluten Sensitivity
Interventions
gluten, rice starch
Dietary Supplement
Lead sponsor
University of Campania Luigi Vanvitelli
Other
Eligibility
18 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Oct 2, 2026, 7:05 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Maternal Choline Supplementation and Cannabis Use During Pregnancy: Impact on Early Brain Development

NCT06379971
View directory record Official record
Conditions
Child Development, Cannabis Use
Interventions
Placebo, Choline
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effects of a Proprietary Blend of Herbal Extract Supplement on Cellular Detoxification, Inflammation, and Cumulative Cognitive Index as Well as Gene Expression in Middle-Aged Adult Women

NCT01598272
View directory record Official record
Conditions
Anti Aging
Interventions
Vitality product AM + Vitality product PM, Placebo
Dietary Supplement
Lead sponsor
Pharmanex
Industry
Eligibility
35 Years to 73 Years · Female only
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Orem, Utah
Source: ClinicalTrials.gov public record
Updated Dec 11, 2014 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Pumpkin Seed Oil Supplementation on Cardiovascular Function in Postmenopausal Women.

NCT03716960
View directory record Official record
Conditions
Elevated Blood Pressure, Hypertension
Interventions
Pumpkin Seed Oil, Placebo
Other
Lead sponsor
Marymount University
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Arlington, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 24, 2018 · Synced Oct 2, 2026, 7:05 AM EDT
Recruiting Phase 4 Interventional

Investigating the Effects of Cannabidiol on Social Anxiety Disorder

NCT05649059
View directory record Official record
Conditions
Phobia, Social
Interventions
Cannabidiol, Placebo
Drug
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 2 Interventional

Study to Assess the Efficacy of Larazotide Acetate for the Treatment of Celiac Disease

NCT00492960
View directory record Official record
Conditions
Celiac Disease
Interventions
larazotide acetate, placebo, 900 mg gluten
Drug · Dietary Supplement
Lead sponsor
9 Meters Biopharma, Inc.
Industry
Eligibility
18 Years to 72 Years
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
17
States / cities
Scottsdale, Arizona • Colorado Springs, Colorado • Chicago, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2017 · Synced Oct 2, 2026, 7:05 AM 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 2, 2026, 7:05 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 16, 2021 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 2 Interventional

Double Blind, Placebo-controlled Trial to Establish Safety and Efficacy of Ritlecitinib in Celiac Disease Patients in Remission

NCT05636293
View directory record Official record
Conditions
Celiac Disease
Interventions
Ritlecitinib, Placebo, Gluten
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 4 Interventional

Study Assessing The Efficacy And Safety Of Avodart (Dutasteride) At Improving Urinary Symptoms In Men With Prostate Cancer Who Are Undergoing Seed Implantation

NCT00805701
View directory record Official record
Conditions
Prostate Cancer
Interventions
avodart, Placebo
Drug
Lead sponsor
Bay State Clinical Trials, Inc.
Other
Eligibility
35 Years to 90 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Watertown, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Oct 2, 2026, 7:05 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Evaluation of the Efficacy of Xylitol Nasal Spray Against SARS-CoV-2

NCT04610801
View directory record Official record
Conditions
Covid19
Interventions
Nasal Spray
Drug
Lead sponsor
Larkin Community Hospital
Other
Eligibility
18 Years to 90 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Natural Modulators of Immune Function and Mood

NCT05508529
View directory record Official record
Conditions
Stress
Interventions
Chaga Mushroom, Algae Extract, Black Cumin Seed Oil, Black Cumin Seed Oil + Astaxanthin, Black Cumin Seed Oil + Omega 3, Placebo
Dietary Supplement
Lead sponsor
3 Waves Wellness
Industry
Eligibility
18 Years to 70 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 19, 2022 · Synced Oct 2, 2026, 7:05 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 24, 2024 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Exercise, Milk Thistle, and Lactobacillus to Influence Plasma Bilirubin

NCT04717726
View directory record Official record
Conditions
Obesity
Interventions
Milk Thistle (MT), Lactobacillus Gasseri (LAC), Exercise (EX), Control (CON)
Dietary Supplement · Behavioral
Lead sponsor
Kyle Flack
Other
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

SH-DS01 on Fecal Metagenomic Stability

NCT04598295
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
DS-01
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

Sulforaphane for the Treatment of Young Men With Autism Spectrum Disorder

NCT02909959
View directory record Official record
Conditions
Autism Spectrum Disorder, Autistic Disorder, Neurodevelopmental Disorder, Childhood Developmental Disorders, Pervasive
Interventions
Sulforaphane, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
13 Years to 30 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Carrboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 4, 2020 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Phase 3 Interventional Results available

Borage and Echium Seed Oils for Asthma

NCT01560988
View directory record Official record
Conditions
Asthma
Interventions
Borage and Echium Seed Oils, Corn oil pills
Drug · Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 9, 2018 · Synced Oct 2, 2026, 7:05 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 6, 2017 · Synced Oct 2, 2026, 7:05 AM EDT
Completed Not applicable Interventional

Grape Seed Extract and Postprandial Oxidation and Inflammation

NCT01190358
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Placebo, Grape seed extract
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
2
States / cities
Davis, California • Mather, California
Source: ClinicalTrials.gov public record
Updated Jul 19, 2017 · Synced Oct 2, 2026, 7:05 AM EDT