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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Antioxidants Clear all
Terminated Phase 2 Interventional

L-Arginine and Antioxidant Vitamins During Pregnancy to Reduce Preeclampsia

NCT00469846
View directory record Official record
Conditions
Pre-Eclampsia
Interventions
L-arginine supplementation in a medical food, Vitamin C and E supplementation in a medical food
Procedure
Lead sponsor
Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes
Government
Eligibility
19 Years to 32 Years · Female only
Enrollment
585 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2007 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 1Phase 2 Interventional

Safety and Efficacy of an Antioxidant-rich Multivitamin Supplement in Cystic Fibrosis

NCT01018303
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
AquADEK
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
10 Years to 40 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 14, 2012 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional

Impact of Maternal Pomegranate Juice on Brain Injury in Infants With Intrauterine Growth Restriction (IUGR)

NCT00788866
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 16, 2014 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Micronutrients to Prevent Noise-induced Hearing Loss

NCT00808470
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Sep 24, 2026, 3:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Oral Supplement Containing L-Histidine and Antioxidants on the Skin Barrier Function and Systemic Inflammation in Rosacea

NCT06072066
View directory record Official record
Conditions
Rosacea, Systemic Inflammation
Interventions
Skin Barrier Oral Supplement
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
30 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Sep 24, 2026, 3:09 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Linking Epidermal Barrier Function With Anti-Oxidant Defense Mechanisms in Skin Conditions

NCT03198390
View directory record Official record
Conditions
Atopic Dermatitis, Hidradenitis Suppurativa, Contact Dermatitis, Psoriasis
Interventions
Not listed
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 99 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Sep 24, 2026, 3:09 AM EDT
Terminated Phase 2 Interventional Results available

Effect of Antioxidant Vitamins on Coagulopathy and Nosocomial Pneumonia After Severe Trauma

NCT01897792
View directory record Official record
Conditions
Coagulopathy, Nosocomial Pneumonia
Interventions
Vitamin C, Vitamin E, Saline (for Vitamin C), Placebo (for Vitamin E)
Dietary Supplement · Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Obesity, Inflammation and Oxidative Stress

NCT01028976
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 2 Interventional

Nutritional Intervention in Children With Autism Using Whey Protein (Immunocal): Impact on Core Areas of Behavior

NCT01366859
View directory record Official record
Conditions
Autism Spectrum Disorders
Interventions
Whey Protein, Rice Protein (Placebo)
Dietary Supplement
Lead sponsor
Nova Southeastern University
Other
Eligibility
3 Years to 5 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
3
States / cities
Fort Lauderdale, Florida
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Sep 24, 2026, 3:09 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Vasodilators and Anti-Oxidant Therapy in Early ATN

NCT00286403
View directory record Official record
Conditions
Acute Renal Failure
Interventions
Fenoldopam Mesylate and/or MESNA
Drug
Lead sponsor
Southeast Renal Research Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 27, 2016 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Practicality of Intermittent Fasting and Its Effect on Markers of Aging and Oxidative Stress

NCT02132091
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional

The Effect of Melatonin on Sleep and Ventilatory Control in Obstructive Sleep Apnea

NCT02484300
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Melatonin, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 21, 2020 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

N-Acetylcysteine for Neuroprotection in Parkinson's Disease

NCT01470027
View directory record Official record
Conditions
Parkinson Disease
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
50 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 24, 2026, 3:09 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Improving Exercise Rehabilitation Efficacy Outcomes Veterans Peripheral Artery Disease

NCT05648630
View directory record Official record
Conditions
Peripheral Artery Disease (D058729), Oxidative Stress (D018384), Inflammation (D007249)
Interventions
PB125, Placebo, Exercise Rehabilitation
Dietary Supplement · Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 24, 2026, 3:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Human Brain Antioxidants During Oxidative Stress

NCT01713816
View directory record Official record
Conditions
Oxidative Stress, Alzheimer's Disease, Aging
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
65 Years to 89 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Determination of the Independent Effects of Beetroot Juice Components, Dietary Nitrate and Antioxidants, on Exercise Tolerance and Health Benefits in Individuals With Obesity

NCT03545009
View directory record Official record
Conditions
Metabolic Disease, Obesity, Exercise
Interventions
Sodium Nitrate, Beetroot Juice no Nitrate, Beetroot Juice
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 21, 2021 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Phase 1Phase 2 Interventional

IdB 1016 Treatment for Hepatitis C Disease

NCT00055445
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
IdB 1016
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 17, 2006 · Synced Sep 24, 2026, 3:09 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Dietary Approaches to Stop Hypertension in 'Diastolic' Heart Failure 2 (DASH-DHF 2)

NCT01942395
View directory record Official record
Conditions
Diastolic Heart Failure, Hypertensive Heart Disease
Interventions
DASH/sodium-restricted diet (DASH/SRD), Control Diet
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 5, 2018 · Synced Sep 24, 2026, 3:09 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Antioxidant Use in Diabetes to Reduce Oxidative Stress

NCT03056014
View directory record Official record
Conditions
Ameliorating Oxidative Stress in Type 1 Diabetes
Interventions
N-acetyl cysteine, omega 6 Fish oil ( PUFA), Placebo
Drug · Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Short Term Effects of Oceanix Supplementation on Recovery

NCT04315077
View directory record Official record
Conditions
Oxidative Stress, Muscle Strength, Resistance Training, Muscle Damage, Immune Suppression
Interventions
Oceanix®, Resistance Training
Dietary Supplement · Other
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Sep 24, 2026, 3:09 AM EDT
Terminated Phase 2 Interventional Results available

Clinical Trial of High-dose Vitamin C for Advanced Pancreatic Cancer

NCT01515046
View directory record Official record
Conditions
Pancreatic Neoplasms, Pancreatic Cancer
Interventions
Gemcitabine with escalating ascorbic acid
Drug
Lead sponsor
Joseph J. Cullen
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 7, 2017 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Antioxidant Responses to Exercise and Cherry Consumption

NCT03522779
View directory record Official record
Conditions
Dietary Modification
Interventions
Tart cherry Juice, High-fat meal, Exercise
Dietary Supplement · Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated May 10, 2018 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Antioxidants on Human Macular Pigments

NCT00718653
View directory record Official record
Conditions
Eye Health
Interventions
Lutein, Lutein plus green tea extract
Dietary Supplement
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
50 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 2, 2009 · Synced Sep 24, 2026, 3:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Supplementary Vitamins on Oxidant Gene Expression in the Lungs of Healthy Smokers

NCT00565214
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Group 1, Group 2
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 24, 2017 · Synced Sep 24, 2026, 3:09 AM EDT