Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 12, 2026, 12:20 AM EDT

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

Showing 121–137 of 137 matching trials from the live ClinicalTrials.gov search.
Conditions
Non-anemic Iron Deficiency
Interventions
Blood Builder®/Iron Response®
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Type 1 Diabetes Mellitus
Interventions
Vitamin C, Vitamin E
Dietary Supplement
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
8 Years to 15 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Glioblastoma Multiforme
Interventions
Temozolomide, radiation therapy, Ascorbic Acid
Drug · Radiation
Lead sponsor
Bryan Allen
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Venous Thromboembolism, Metastatic Pancreatic Cancer, Locally Advanced Pancreatic Adenocarcinoma
Interventions
Kinisoquin™, Placebo
Drug
Lead sponsor
Quercis Pharma AG
Industry
Eligibility
18 Years and older
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Ventura, California • Miami Lakes, Florida • Boston, Massachusetts
Completed Phase 2 Interventional Results available

Males, Antioxidants, and Infertility Trial

NCT02421887
Conditions
Male Infertility
Interventions
Antioxidant Supplement, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Male only
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
10
States / cities
Los Angeles, California • San Francisco, California • Sunnyvale, California + 7 more
Completed Not applicable Interventional Accepts healthy volunteers

Collagen Vitamin C Dose Response Performance

NCT03293004
Conditions
Healthy Volunteers
Interventions
Hydrolyzed collagen, Vitamin C, Optimized Hydrolyzed Collagen and Vitamin C, Gummy Placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Davis, California
Conditions
COVID-19, Hypoxia
Interventions
L-ascorbic acid
Drug
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Shock, Thermal Burn
Interventions
Ascorbic Acid, placebo
Drug
Lead sponsor
Clinical Evaluation Research Unit at Kingston General Hospital
Other
Eligibility
18 Years and older
Enrollment
666 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
10
States / cities
Phoenix, Arizona • Bridgeport, Connecticut • Washington D.C., District of Columbia + 7 more
Conditions
Hypercholesterolemia
Interventions
Citrus Limonoid Beverage, Placebo beverage
Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
20 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Davis, California
Completed Phase 3 Interventional Accepts healthy volunteers

Obesity, Inflammation and Oxidative Stress

NCT01028976
Conditions
C-reactive Protein, Inflammation, Obesity, Oxidative Stress
Interventions
Vitamin C (ascorbic acid), Placebo tablet
Dietary Supplement
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years and older
Enrollment
512 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Oakland, California
Conditions
Neoplasms, Metastatic Cancer, Advanced Cancer, Solid Tumor, Non Small Cell Lung Cancer Metastatic, Non Small Cell Lung Cancer Stage IIIB, Non Small Cell Lung Cancer
Interventions
Niraparib, TSR-042, Carboplatin-Paclitaxel, Bevacizumab, TSR-022, Carboplatin-Pemetrexed, Carboplatin-Nab-Paclitaxel
Drug
Lead sponsor
Tesaro, Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
8
States / cities
Scottsdale, Arizona • Encinitas, California • San Marcos, California + 5 more
Conditions
Autistic Disorder
Interventions
B12, Placebo, folate, B complex, vitamin C, cod liver oil, Mineral complex, carnitine
Dietary Supplement
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
3 Years to 7 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Little Rock, Arkansas
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Micronutrients to Prevent Noise-induced Hearing Loss

NCT00808470
Conditions
Noise-Induced Hearing Loss
Interventions
beta-carotene, vitamins C and E, magnesium, Placebo
Drug · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 35 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Chronic Kidney Disease, Cardiovascular Disease, Death
Interventions
High Dose Multivitamin, Low Dose Multivitamin
Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
35 Years to 75 Years
Enrollment
4,110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2011
U.S. locations
27
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 22 more
Conditions
Hair Thinning, Hair Loss
Interventions
Live Conscious Beyond Collagen, Placebo
Dietary Supplement
Lead sponsor
Scale Media Inc
Industry
Eligibility
40 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Completed Not applicable Interventional Accepts healthy volunteers

Gender, Obesity, C-Reactive Protein, and Oxidative Stress

NCT00079963
Conditions
Cardiovascular Disease
Interventions
Vitamin C, Vitamin E, Placebo
Dietary Supplement
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
396 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Berkeley, California
Completed Not applicable Interventional Accepts healthy volunteers

Broccoli Sulforaphane Bioavailability With Mustard

NCT04946526
Conditions
Sulforaphane Bioavailability
Interventions
Broccoli seed extract, Broccoli seed extract with mustard seed powder
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
25 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Kannapolis, North Carolina