- Conditions
- Excessive Physical Exercise, Unspecified
- Interventions
- Arginine antioxidant supplements, Placebo
- Dietary Supplement
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 50 Years to 75 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2004 – 2005
- U.S. locations
- 1
- States / cities
- Los Angeles, California
Search Results
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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.
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Showing 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Cardiovascular Disease
- Interventions
- Antioxidant cocktail, Biopsy, Placebo, NMD; 0.4mg sub-lingual nitroglycerin spray
- Dietary Supplement · Other · Drug
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 74 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2027
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Knee Osteoarthritis
- Interventions
- Stem Cell Support Formula, Placebo
- Dietary Supplement
- Lead sponsor
- Regenexx, LLC
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 2
- States / cities
- Broomfield, Colorado • Lone Tree, Colorado
- Conditions
- Exercise and Non-exercise Effect Upon Vitamins E and C
- Interventions
- Vitamin E and Vitamin C
- Dietary Supplement
- Lead sponsor
- USDA Grand Forks Human Nutrition Research Center
- Federal
- Eligibility
- 30 Years to 50 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Grand Forks, North Dakota
- Conditions
- Mental Health Disorders
- Interventions
- PTSD/GAD Antioxidant, PTSD/GAD Placebo, Healthy Control Antioxidant, Healthy Control Placebo
- Dietary Supplement
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Skin Care
- Interventions
- Skin Care Cream, Placebo
- Combination Product · Drug
- Lead sponsor
- Wayne State University
- Other
- Eligibility
- 20 Years to 60 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Dearborn, Michigan
- Conditions
- Asthma
- Interventions
- Fish Oil, Ascorbic Acid, Fish Oil Placebo, Ascorbic Acid Placebo
- Dietary Supplement
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Bloomington, Indiana
- Conditions
- Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia-1, Cytopenia
- Interventions
- Vitamin C (ascorbic acid), Placebo
- Dietary Supplement · Other
- Lead sponsor
- Rigshospitalet, Denmark
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 109 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2025
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Fragile X Syndrome
- Interventions
- 5-Hydroxytryptophan, Ergoloid Mesylates, Matching placebo for Ergoloid mesylates, Matching placebo for 5-Hydroxytryptophan
- Drug
- Lead sponsor
- Elizabeth Berry-Kravis
- Other
- Eligibility
- 18 Years to 45 Years · Male only
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Disorder of Vitamin C, Atrial Fibrillation, Complications Due to Coronary Artery Bypass Graft, Heart Valve Disease
- Interventions
- Ascorbic Acid, Placebo
- Drug
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Autism, Pervasive Developmental Disorder
- Interventions
- oral zinc and vitamin C supplements, oral Placebo
- Drug · Other
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 3 Years to 8 Years
- Enrollment
- 89 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2011
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania
- Conditions
- Obesity, Hyperlipidemia, Hypertension
- Interventions
- Antioxidant diet, Antioxidant supplement, Placebo
- Behavioral · Dietary Supplement
- Lead sponsor
- Christopher Gardner
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 88 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Hypertension, Cardiovascular Diseases
- Interventions
- Ascorbic acid solution (American Regent Laboratories Inc.), Saline
- Drug
- Lead sponsor
- University of Kansas Medical Center
- Other
- Eligibility
- 35 Years to 65 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- Dietary Supplements
- Interventions
- Emergen-C Core Super Orange Powder, Placebo
- Dietary Supplement
- Lead sponsor
- HALEON
- Industry
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 299 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Healthy
- Interventions
- Astaxanthin, Placebo
- Dietary Supplement · Other
- Lead sponsor
- LycoRed Ltd.
- Industry
- Eligibility
- 18 Years to 50 Years · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Richardson, Texas
- Conditions
- Charcot-Marie-Tooth Disease, Type Ia
- Interventions
- Ascorbic acid (Vitamin C), placebo
- Drug
- Lead sponsor
- Wayne State University
- Other
- Eligibility
- 13 Years to 70 Years
- Enrollment
- 110 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2012
- U.S. locations
- 3
- States / cities
- Baltimore, Maryland • Detroit, Michigan • Rochester, New York
- Conditions
- Abortion, Induced
- Interventions
- Mifepristone, misoprostol, Osmotic dilators, placebo
- Other · Drug · Device
- Lead sponsor
- Planned Parenthood League of Massachusetts
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 300 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 7
- States / cities
- San Francisco, California • Chicago, Illinois • Boston, Massachusetts + 3 more
- Conditions
- Asthma, Pulmonary Function, Wheezing, In Utero Nicotine
- Interventions
- No active intervention in this protocol (previously randomized to Vitamin C), No active intervention in this protocol (previously randomized to Placebo)
- Dietary Supplement · Other
- Lead sponsor
- Oregon Health and Science University
- Other
- Eligibility
- 6 Years to 16 Years
- Enrollment
- 225 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2028
- U.S. locations
- 2
- States / cities
- Indianapolis, Indiana • Portland, Oregon
- Conditions
- Anemia in Pregnancy
- Interventions
- Vitamin C
- Dietary Supplement
- Lead sponsor
- Fetal Medicine Foundation
- Other
- Eligibility
- 18 Years to 50 Years · Female only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Dayton, Ohio
- Conditions
- Hunger
- Interventions
- High Dose Supplement, Low Dose Supplement, Placebo
- Dietary Supplement
- Lead sponsor
- Texas Christian University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Fort Worth, Texas
- Conditions
- Sepsis, Septic Shock, Hypotension, Acute Lung Injury
- Interventions
- Ascorbic Acid, Placebo
- Drug
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Dietary Supplements, Connective Tissue, Exercise
- Interventions
- Natural Product Supplement, Placebo control
- Dietary Supplement
- Lead sponsor
- University of California, Davis
- Other
- Eligibility
- 18 Years to 30 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Davis, California
- Conditions
- Critical Illness, Sepsis, Multiple Organ Failure
- Interventions
- Glutamine, Antioxidants, Glutamine + Antioxidants, Placebo
- Other
- Lead sponsor
- Daren K. Heyland
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,223 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2012
- U.S. locations
- 5
- States / cities
- Aurora, Colorado • Louisville, Kentucky • Dayton, Ohio + 2 more
- Conditions
- HIV Infections, Disease Transmission, Vertical
- Interventions
- Vitamin A + Beta Carotene, Multivitamins, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Harvard School of Public Health (HSPH)
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 1,085 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1995 – 2003
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts