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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Conditions
Acne, Eczema, Skin Aging
Interventions
Hemptress Oil
Other
Lead sponsor
Hemptress
Industry
Eligibility
21 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Diabetes Type 2
Interventions
Vitamin E, Vitamin C
Dietary Supplement
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Completed Phase 3 Interventional Accepts healthy volunteers

Vitamins C and Vitamin E and Cardiovascular Risk

NCT00362518
Conditions
Diabetes
Interventions
Study Arm A, Study Arm B, Study Arm C, Study Arm D
Dietary Supplement
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Albuquerque, New Mexico
Not listed Not applicable Interventional Accepts healthy volunteers

Antioxidant Bioavailability

NCT04463030
Conditions
Pharmacokinetics
Interventions
Liposomal vitamin C, 1 gram, Liposomal vitamin C, 2 grams, Liposomal vitamin C, 5 grams, Placebo
Dietary Supplement
Lead sponsor
Natural Immune Systems Inc
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Klamath Falls, Oregon
Conditions
Alzheimer's Disease
Interventions
Vitamin E, Vitamin C, and Alpha-lipoic Acid, Coenzyme Q, Placebo capsules, Placebo wafers
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
60 Years to 85 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
13
States / cities
Tucson, Arizona • Irvine, California • La Jolla, California + 10 more
Conditions
Metastatic Pancreatic Cancer, Pancreatic Cancer, Pancreas Cancer, Pancreatic Adenocarcinoma Resectable, Pancreatic Ductal Adenocarcinoma, Pancreatic Metastasis
Interventions
Ascorbic Acid, Paclitaxel protein-bound, Cisplatin, Gemcitabine
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
6
States / cities
Scottsdale, Arizona • San Diego, California • Atlanta, Georgia + 3 more
Completed Not applicable Interventional Accepts healthy volunteers

Treatment of Non-Anemic Iron Deficiency in Pregnancy

NCT05423249
Conditions
Non-anemic Iron Deficiency
Interventions
Ferrous sulfate, Prenatal, Docusate Sodium, Ascorbic Acid 500Mg Tab, Placebo
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
3
States / cities
Bohemia, New York • Commack, New York • East Setauket, New York
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
Intrauterine Growth Restriction
Interventions
Pomegranate Juice, Placebo
Dietary Supplement
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Myelodysplastic Syndromes
Interventions
Vitamin C
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Miami, Florida • New York, New York
Conditions
Ovarian Cancer
Interventions
Oral Ascorbic Acid, Paclitaxel, Carboplatin, Sodium Ascorbate, Oral Mixed natural Carotenoids with Vitamin A, Vitamin E
Dietary Supplement · Drug
Lead sponsor
Jeanne Drisko, MD, CNS, FACN
Other
Eligibility
18 Years and older · Female only
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Diabetes, Type 1, Diabetes, Type 2, Foot Ulcer, Diabetic
Interventions
Bacitracin, AmeriGel®, Vitamin C
Drug · Dietary Supplement
Lead sponsor
Susan Hassenbein
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Hershey, Pennsylvania
Conditions
Familial Hypercholesterolemia
Interventions
LDL Apheresis
Procedure
Lead sponsor
Emory University
Other
Eligibility
3 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Not applicable Interventional Accepts healthy volunteers

Nitrate and Vitamin C on Vascular Health Oxidative Stress

NCT04283630
Conditions
Endothelial Dysfunction
Interventions
Dietary nitrate in the form of beetroot juice for all participnats, Nature Made vitamin c 1000 mg, Placebo
Dietary Supplement
Lead sponsor
David Travis Thomas
Other
Eligibility
50 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Lexington, Kentucky
Conditions
Lymphoid Leukemia, Myeloid Leukemia, Monocytic Leukemia, Myelodysplasia
Interventions
Intravenous (IV) and oral Vitamin C
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 77 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Pre-Bronchiolitis Obliterans Syndrome
Interventions
ARINA-1, Standard of care only
Drug · Other
Lead sponsor
Renovion, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 17 more
Conditions
Vitamin C Deficiency, Smoking, Surgery, Surgery--Complications, Wound, Wound Complication, Wound Infection, Wound Dehiscence, Wound of Skin, Mandible Fracture, Mandible Open Fracture, Mandible Closed Fracture, Mandibular Fractures, Ascorbic Acid Deficiency, Oxidative Stress, Inflammation
Interventions
Vitamin C, Placebo
Dietary Supplement · Other
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Anxiety, Stress, Memory Deficits, Cortisol Overproduction
Interventions
Heights Smart Supplement
Dietary Supplement
Lead sponsor
Heights
Industry
Eligibility
21 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Completed Not applicable Interventional Accepts healthy volunteers

Acute Study on Muscle Soreness, Damage, and Performance

NCT04230226
Conditions
Soreness, Muscle, Performance Enhancing Product Use, Damage Muscle
Interventions
Pre-workout plus and protein recovery plus, Placebo
Dietary Supplement · Other
Lead sponsor
Pharmanex
Industry
Eligibility
25 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Aging, Metabolism
Interventions
Intermittent Fasting, 400 IU Vitamin E, 1000 mg Vitamin C
Other · Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
19 Years to 30 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Keratoconus
Interventions
Antioxidants (Vitamins A,C,E) plus GSH, Placebo, Centrum, Dietary Sources
Other · Dietary Supplement · Combination Product
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Palm Beach Gardens, Florida
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Mechanisms for Vascular Dysfunction and Exercise Tolerance in CF

NCT02690064
Conditions
Cystic Fibrosis
Interventions
Acute Antioxidant, Chronic Antioxidant, Placebo
Dietary Supplement · Other
Lead sponsor
Augusta University
Other
Eligibility
7 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
Augusta, Georgia
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
Completed Not applicable Interventional Accepts healthy volunteers

Beverage Hydration Index of Different Solutions

NCT07507344
Conditions
Hydration
Interventions
Hydramin hydration solution, Carbohydrate and Electrolyte hydration solution, Water
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Memphis, Tennessee