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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Accepts healthy volunteers

The Effects of VisionPure™ on Indices of Vision Health and Cognitive Function

NCT05533658
View directory record Official record
Conditions
Eye Health, Vision, Cognitive Function
Interventions
VisionPure Dietary Supplement, Placebo
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Lutz, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 25, 2023 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Not applicable Interventional

Pomegranate and Hemodialysis Pilot Trial

NCT01562340
View directory record Official record
Conditions
End Stage Renal Disease, Cardiovascular Disease, Inflammation
Interventions
Pomegranate juice, Pomegranate fruit extract
Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 85 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Respiratory and Autonomic Plasticity Following Intermittent Hypoxia

NCT00860743
View directory record Official record
Conditions
Sleep Apnea Syndromes
Interventions
Antioxidant cocktail
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
20 Years to 40 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 31, 2017 · Synced Sep 26, 2026, 1:50 PM EDT
Not listed Phase 4 Interventional

Mitochondrial Oxidative Stress and Vascular Health in Chronic Kidney Disease

NCT02364648
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
MitoQ, Placebo
Dietary Supplement
Lead sponsor
University of Delaware
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Sep 26, 2026, 1:50 PM EDT
Withdrawn Phase 2 Interventional

Melatonin Supplementation to Improve Sleep in Patients With Heart Failure

NCT00869869
View directory record Official record
Conditions
Heart Failure, Sleep Disorders
Interventions
melatonin, placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
35 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 18, 2018 · Synced Sep 26, 2026, 1:50 PM EDT
Terminated Not applicable Interventional

The Use of Alpha Lipoic Acid for the Treatment and Prevention of Diabetic Retinopathy

NCT01880372
View directory record Official record
Conditions
Moderate Non-proliferative Diabetic Retinopathy
Interventions
Alpha Lipoic Acid
Dietary Supplement
Lead sponsor
Ferris State University
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Big Rapids, Michigan • Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Sep 26, 2026, 1:50 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Sabroxy® Supplementation on Insulin Resistance and Cognitive Function in Adults With Mild Cognitive Impairment and Insulin Resistance

NCT07220694
View directory record Official record
Conditions
Insulin Resistance, Mild Cognitive Impairment, Cognitive Decline, Neurodegenerative Disorders
Interventions
Sabroxy®, Placebo
Dietary Supplement · Other
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
40 Years to 80 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 3 Interventional Results available

Prevention of Serious Adverse Events Following Angiography

NCT01467466
View directory record Official record
Conditions
Acute Renal Failure, Kidney Disease, Coronary Artery Disease
Interventions
IV isotonic saline, IV isotonic bicarbonate, N-acetylcysteine, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
5,177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
35
States / cities
Tucson, Arizona • Little Rock, Arkansas • Palo Alto, California + 32 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Sep 26, 2026, 1:50 PM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Anti-oxidant Therapy and Postoperative Cardiac Events (ACE) Trial, Preoperative Intervention in Vascular Surgery

NCT03956017
View directory record Official record
Conditions
Myocardial Injury
Interventions
Ubiquinone, Placebo
Drug
Lead sponsor
Minneapolis Veterans Affairs Medical Center
Federal
Eligibility
Not listed
Enrollment
341 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 30, 2021 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 1 Interventional

Vitamin E Pharmacokinetics and Biomarkers in Normal and Obese Women

NCT00862433
View directory record Official record
Conditions
Diabetes, Fatty Liver, Obesity, Healthy Volunteers
Interventions
Alpha tocopherol, Vitamin E, Vitamin C
Drug · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 55 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 2 Interventional Results available

Effects of an Antioxidant-Enriched Multivitamin Supplement on Inflammation and Oxidative Stress in Cystic Fibrosis

NCT01859390
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
AquADEKs-2, control multivitamin
Drug · Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
10 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
15
States / cities
Tucson, Arizona • Aurora, Colorado • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2017 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

RCT of an Oral Acne Supplement for Adult Women

NCT06097871
View directory record Official record
Conditions
Acne
Interventions
Skin Nutraceutical Supplement, Placebo pill
Dietary Supplement · Other
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Not applicable Interventional

Randomized Trial of a Gum Health Formulation

NCT03196648
View directory record Official record
Conditions
Periodontal Diseases, Gingivitis, Periodontitis, Halitosis
Interventions
Gingival health formulation in an accelerating device, Gingival health formulation on a toothbrush, OTC fluoride toothpaste
Other
Lead sponsor
Glo Science, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 22, 2017 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 4 Interventional Results available

Vitamin D and Coronary Calcification Study

NCT00752102
View directory record Official record
Conditions
Chronic Kidney Disease, Vitamin D Deficiency, Coronary Calcification, Disorders of Calcium and Bone Metabolism
Interventions
Calcitriol (Rocaltrol®), Paricalcitol
Drug
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
25 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 1 Interventional

The Role of Vitamins E and C in Maintaining Lung Health in People With Asthma

NCT00142610
View directory record Official record
Conditions
Asthma
Interventions
Vitamin
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 3, 2013 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Not applicable Interventional

CoQ10 Biomarker Trial

NCT01408680
View directory record Official record
Conditions
Oxidative Stress, Inflammation, Endothelial Dysfunction
Interventions
Coenzyme Q10, Placebo
Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 85 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Sep 26, 2026, 1:50 PM EDT
Withdrawn Phase 2 Interventional

The Role of Antioxidant Supplementation in Keratoconus Patients

NCT02827747
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 15, 2021 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of the Effects of Vitamin C on Patients With Type 2 Diabetes

NCT00001870
View directory record Official record
Conditions
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Interventions
Acetylcholine
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 26, 2026, 1:50 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Nitric Oxide Bioavailability and Early Life Stress (NO-Stress)

NCT02115724
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cystic Fibrosis and Endothelial Function: At Rest and During Exercise

NCT01772758
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
BH4 5mg, BH4 20mg, Antioxidant Cocktail
Drug · Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
7 Years and older
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 19, 2019 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Sex Hormones and Atherosclerosis Prevention in Perimenopausal Women

NCT02042196
View directory record Official record
Conditions
Menopause, Aging
Interventions
KUVAN, Placebo, Cetrotide, Climara, Placebo transdermal patch
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Sep 26, 2026, 1:50 PM EDT
Recruiting Phase 2 Interventional

MitoQ and Ischemic Conditioning To Assess Vascular Health Outcomes

NCT06930638
View directory record Official record
Conditions
Stroke
Interventions
Ischemic Conditioning, Antioxidant Supplement
Device · Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Sep 26, 2026, 1:50 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Skin Hydration in Persons With Acne After Dietary Supplementation With Botanical Antioxidants

NCT04534140
View directory record Official record
Conditions
Acne Vulgaris, Acne
Interventions
HBKB Capsule, HBKB Supplement Vehicle
Dietary Supplement · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Sep 26, 2026, 1:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exercise in Health and Chronic Obstructive Pulmonary Disease

NCT02300064
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Knee-extensor exercise test, Exercise test with restricting/releasing blood flow, Exercise test with variable oxygen concentration and MRI, Exercise test with oral antioxidant or placebo cocktail
Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 31, 2016 · Synced Sep 26, 2026, 1:50 PM EDT