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Showing 1–24 of 133 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo & Vitamin E Clear all
Terminated Phase 2Phase 3 Interventional Results available

A Study to Evaluate Efficacy and Safety of Vatiquinone for Treating Mitochondrial Disease in Participants With Refractory Epilepsy

NCT04378075
View directory record Official record
Conditions
Mitochondrial Diseases, Drug Resistant Epilepsy, Leigh Disease, Leigh Syndrome, Mitochondrial Encephalopathy (MELAS), Pontocerebellar Hypoplasia Type 6 (PCH6), Alpers Disease, Alpers Syndrome
Interventions
Vatiquinone, Placebo
Drug · Other
Lead sponsor
PTC Therapeutics
Industry
Eligibility
Up to 20 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
12
States / cities
San Diego, California • Stanford, California • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 28, 2026, 3:58 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Investigation of Macular Pigment Augmentation on Dark Adaptation

NCT00478439
View directory record Official record
Conditions
Aging, Age-Related Macular Degeneration
Interventions
ZeaVision EyePromise Restore, Multivitamin
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
60 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 26, 2010 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Combinatorial Nutritional Supplementation on Immune Function in Healthy Older Adults

NCT02876315
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Redoxon VI, placebo
Dietary Supplement
Lead sponsor
Oregon State University
Other
Eligibility
55 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Estrogen and Diabetes

NCT03436992
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Antioxidant Cocktail, Resveratrol, Placebo
Dietary Supplement · Other
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 40 Years
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
2
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2025 · Synced Sep 28, 2026, 3:58 PM EDT
Terminated Not applicable Interventional

Treatment of Rhinitis With Intranasal Vitamin E

NCT00281307
View directory record Official record
Conditions
Rhinitis
Interventions
RRR-alpha-tocopherol 1,000 IU/mL
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 17, 2017 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Chronic Obstructive Pulmonary Disease Fish Oil Pilot Trial

NCT00835289
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
n-3 polyunsaturated fatty acids, Placebo
Dietary Supplement · Other
Lead sponsor
Columbia University
Other
Eligibility
40 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 16, 2020 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Multi-vitamin Supplement in Adult Females

NCT03828097
View directory record Official record
Conditions
Health, Subjective
Interventions
Experimental supplement, Placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 27, 2020 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional

Palm Tocotrienols in Chronic Hemodialysis (USA)

NCT02358967
View directory record Official record
Conditions
End Stage Renal Disease, Chronic Kidney Disease
Interventions
TRF (Tocotrienol-rich-fraction), Placebo
Dietary Supplement
Lead sponsor
Wayne State University
Other
Eligibility
18 Years and older
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 9, 2022 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Clinical Trial of Astaxanthin Formulation With Exercise in Sarcopenia Elderly

NCT03368872
View directory record Official record
Conditions
Sarcopenia
Interventions
Astaxanthin formulation, Placebo, Exercise training
Other
Lead sponsor
Astavita, Inc.
Industry
Eligibility
65 Years to 85 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 10, 2017 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Results available

A Randomized, Clinical Trial of Vitamin E and Memantine in Alzheimer's Disease

NCT00235716
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
dl-alpha-tocopherol, Memantine, Placebo
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
40 Years and older
Enrollment
613 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
13
States / cities
Bay Pines, Florida • Miami, Florida • Iowa City, Iowa + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2014 · Synced Sep 28, 2026, 3:58 PM EDT
Not listed Not applicable Interventional

Supplemental Adjuvants for Intracellular Nutrition and Treatment

NCT00893724
View directory record Official record
Conditions
Neovascular Age-related Macular Degeneration, Diabetic Macular Edema
Interventions
Neutral pills with no medicinal effect, Inosine; Tocopherols, Tocotrienol, CoQ10 combination capsule; Niacinamide SR; Viatmin C; N-acetyl Cysteine; Complete Multivitamin with all minerals, Inosine; Tocopherol, Tocotrienol, CoQ10 combination capsule; Niacinamide; Vitamin C; N-acetyl Cysteine; Complete Multivitamin with all minerals; Minocycline
Drug · Dietary Supplement
Lead sponsor
Mid-Atlantic Retina Consultations, Inc.
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jul 19, 2011 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Phase 4 Interventional Results available

Prevalence of Non-alcoholic Fatty Liver Disease (NAFLD) in Hispanics With Diabetes Mellitus Type 2 (T2DM) and Role of Treatment

NCT01002547
View directory record Official record
Conditions
Nonalcoholic Steatohepatitis
Interventions
pioglitazone-placebo, pioglitazone, Vitamin E, Vitamin E-placebo
Drug · Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 70 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Gainesville, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Sep 28, 2026, 3:58 PM 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 28, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Lactation Fortification Study

NCT01747668
View directory record Official record
Conditions
Lactation
Interventions
Similac Prenatal Vitamin soft-gel capsule, Placebo (soybean oil and dl-alpha-tocopheryl acetate)
Dietary Supplement
Lead sponsor
Abbott Nutrition
Industry
Eligibility
18 Years and older · Female only
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
6
States / cities
Indianapolis, Indiana • Dayton, Ohio • Kettering, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated May 30, 2013 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Study on Muscle Soreness, Damage, and Performance

NCT04230226
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 16, 2020 · Synced Sep 28, 2026, 3:58 PM EDT
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 28, 2026, 3:58 PM EDT
Not listed Not applicable Interventional

Prospective Study of Adjunctive Carotenoids Plus Anti-oxidants in Anti-VEGF Treated Diabetic Macular Edema

NCT03866005
View directory record Official record
Conditions
Center-involved Diabetic Macular Edema (CI-DME)
Interventions
Diabetes Visual Function Study (DiVFuSS) softgels, canola oil placebo softgels, 2 per day
Dietary Supplement · Other
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Olympia, Washington • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Sep 28, 2026, 3:58 PM EDT
Withdrawn Not applicable Interventional

Omega 3 Supplementation and Ocular Surface Disease in Glaucoma

NCT01630551
View directory record Official record
Conditions
Ocular Surface Disease
Interventions
Fishoil supplement, Olive Oil
Dietary Supplement
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Phase 4 Interventional Results available

Comparative Study of the Efficacy of SARNA Sensitive Lotion for Treatment of Uremic Itch in Adult Hemodialysis Patients

NCT00693654
View directory record Official record
Conditions
Pruritis
Interventions
Sarna, Cetaphil
Drug
Lead sponsor
Wake Forest University
Other
Eligibility
18 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Results available

Vitamin E in Preventing Peripheral Neuropathy Caused by Chemotherapy in Patients Receiving Chemotherapy for Cancer

NCT00363129
View directory record Official record
Conditions
Neurotoxicity, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
vitamin E, placebo
Dietary Supplement · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
69
States / cities
Bloomington, Illinois • Canton, Illinois • Carthage, Illinois + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2016 · Synced Sep 28, 2026, 3:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Outpatient Cervical Ripening With Orally Administered Misoprostol in Diabetics

NCT00514618
View directory record Official record
Conditions
Diabetes, Gestational
Interventions
Misoprostol, Placebo
Drug · Dietary Supplement
Lead sponsor
MemorialCare Health System
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MsFLASH-02: Interventions for Relief of Menopausal Symptoms: A 3-by-2 Factorial Design Examining Yoga, Exercise, and Omega-3 Supplementation

NCT01178892
View directory record Official record
Conditions
Hot Flashes, Menopause, Vasomotor Symptoms
Interventions
Placebo, Omega-3, Yoga, Exercise, Usual Activity
Dietary Supplement · Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
40 Years to 62 Years · Female only
Enrollment
355 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
3
States / cities
Oakland, California • Indianapolis, Indiana • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 21, 2014 · Synced Sep 28, 2026, 3:58 PM EDT
Terminated Phase 3 Interventional Results available

Biomarker Study of Neoadjuvant Vitamin E in Patients With Locally Treatable Prostate Cancer

NCT00809458
View directory record Official record
Conditions
Prostate Cancer
Interventions
Vitamin E
Drug
Lead sponsor
New Mexico Cancer Research Alliance
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 15, 2015 · Synced Sep 28, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Results available

Alii Supplement Study

NCT07271316
View directory record Official record
Conditions
Nutrient Deficiency, Happiness, Digestive Health, Vulnerability to Disease, Mood Swings, Energy
Interventions
Alii Supplement
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 28, 2026, 3:58 PM EDT