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ClinicalTrials.gov public records Last synced Oct 19, 2026, 2:27 AM EDT

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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Vita Clear all
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 Dec 1, 2022 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCD

NCT03632876
View directory record Official record
Conditions
Sickle Cell Anemia in Children, Vitamin A Deficiency in Children
Interventions
retinyl palmitate
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
9 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Phase 2 Interventional Results available

Comparison of Retinol 1.0% and Tretinoin 0.02% in the Treatment of Moderate to Severe Photodamage and Wrinkles

NCT01283464
View directory record Official record
Conditions
Photodamaged Skin, Wrinkles
Interventions
Retinol, Tretinoin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
35 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fruit and Vegetable Juice Concentrate Effects on RBP4 and Antioxidant Capacity in Lean and Overweight 6-10 Year Old Boys

NCT00842543
View directory record Official record
Conditions
Obesity
Interventions
Fruit and Vegetable Juice Concentrate (FVJC), Placebo
Dietary Supplement
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Years to 10 Years · Male only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 26, 2013 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional

The Effect of Topical Almond Oil vs. Topical Retinol on The Appearance of Facial Wrinkles

NCT05011461
View directory record Official record
Conditions
Wrinkles, Skin
Interventions
Almond Oil
Other
Lead sponsor
University of California, Davis
Other
Eligibility
40 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2023 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Phase 4 Interventional Results available

Study to Assess DerMend Moisturizing Bruise Formula in Improving the Appearance of Chronically Aged Forearms and Hands

NCT01910831
View directory record Official record
Conditions
Purpura
Interventions
DerMend Moisturizing Bruise Formula, Non-active placebo control
Drug
Lead sponsor
The Center for Clinical and Cosmetic Research
Other
Eligibility
60 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Dec 2, 2019 · Synced Oct 19, 2026, 2:27 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin K and Glucose Metabolism in Adults at Risk for Diabetes (Vita-K 'n' Adults Study)

NCT02366481
View directory record Official record
Conditions
Obesity, Insulin Resistance, Insulin Sensitivity, Beta-Cell Dysfunction, Prediabetes
Interventions
Placebo, Low-Dose Vitamin K2 Supplement (menaquinone-7; 90-mcg/d), High-Dose Vitamin K2 Supplement (menaquinone-7; 180-mcg/d)
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional

Effects of Exercise in People With Tetraplegia

NCT01202019
View directory record Official record
Conditions
Spinal Cord Injury, Tetraplegia
Interventions
Circuit Resistance Training (CRT)
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 22, 2014 · Synced Oct 19, 2026, 2:27 AM EDT
Not yet recruiting Not applicable Interventional

Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm Infants

NCT07736768
View directory record Official record
Conditions
Premature, Preterm Infant Health, Vitamin A Deficiency, Human Milk, Breastfeeding
Interventions
Oral multivitamin containing vitamin A
Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 19, 2026, 2:27 AM EDT
Recruiting Not applicable Interventional

The Continuity Study

NCT07216573
View directory record Official record
Conditions
Blood Pressure
Interventions
HemoSphere Vita Monitor with VitaWave or VitaWave Plus Finger Cuff Adult, and ForeSight Large Sensors
Device
Lead sponsor
Becton, Dickinson and Company
Industry
Eligibility
18 Years and older
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparative Split-Face Study of the Effects of a Retinol Alternative Cream on Improving Facial Skin Aging

NCT06125912
View directory record Official record
Conditions
Skin Aging
Interventions
Dime Beauty TBT Cream, Positive Control
Other
Lead sponsor
Dime Beauty Co.
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Feb 22, 2024 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study To Investigate If Embody's Retinol Gummies Improve The Early Signs Of Skin Aging And Overall Skin Health

NCT04884516
View directory record Official record
Conditions
Acne, Adult
Interventions
Retinol gummy
Dietary Supplement
Lead sponsor
Embody Beauty, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Phase 1 Interventional

Repeated Treatments of QLT091001 in Subjects With Leber Congenital Amaurosis or Retinitis Pigmentosa (Extension of Study RET IRD 01)

NCT01521793
View directory record Official record
Conditions
LCA (Leber Congenital Amaurosis), RP (Retinitis Pigmentosa)
Interventions
QLT091001
Drug
Lead sponsor
QLT Inc.
Industry
Eligibility
5 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
2
States / cities
Chicago, Illinois • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 28, 2014 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Comparison of the Cosmetic Effects of Bakuchiol and Retinol

NCT03112863
View directory record Official record
Conditions
Wrinkle, Photoaging
Interventions
Bakuchiol, Retinol
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
30 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Beta-carotene Absorption and Bioconversion to Vitamin A From Biofortified Cassava Gari

NCT02210507
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
Biofortified cassava gari, White cassava gari, White cassava gari + red palm oil
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2015 · Synced Oct 19, 2026, 2:27 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin K to Slow Progression of Dyslipidemia and Diabetes Risk (Vita-K 'n' Kids Study II)

NCT02959762
View directory record Official record
Conditions
Obesity, Insulin Resistance, Obesity in Diabetes, Nutritional and Metabolic Diseases, Hyperlipidemia, Hyperglycemia, Cardiovascular Diseases
Interventions
Placebo-Control, Low-Dose Vitamin K2 (menaquinone-7; 45-mcg/d), High-Dose Vitamin K2 (menaquinone-7; 90 mcg/d)
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
8 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in Bangladesh

NCT00198822
View directory record Official record
Conditions
Vitamin A Deficiency, Maternal Mortality, Infant Mortality
Interventions
Vitamin A or Beta-Carotene Supplements
Dietary Supplement
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
15 Years to 49 Years · Female only
Enrollment
59,666 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Phase 4 Interventional

Investigation of the Tolerability of Two Facial Cleansing Routines for Mild to Moderate Acne

NCT05446402
View directory record Official record
Conditions
Acne
Interventions
Geologie Acne Regimen - one side of face, Proactive Acne Regimen - other side of face
Combination Product
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Prospective Study of Topical Adapinoid Versus Topical Retinol

NCT05778760
View directory record Official record
Conditions
Wrinkle
Interventions
Retinol, Adapinoid
Other
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
35 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 18, 2024 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Golden Rice Carotenoids in Humans

NCT00680355
View directory record Official record
Conditions
Healthy
Interventions
golden rice, corn oil 0g, corn oil 10g, coren oil 5 g
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
40 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 1, 2013 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Topical Vitamin K, Vitamin K and Retinol, and Arnica on Post-Laser Bruising

NCT00363038
View directory record Official record
Conditions
Ecchymosis
Interventions
Petrolatum United States Pharmacopeia (USP), Vitamin K and retinol ointment, Arnica ointment, Vitamin K ointment
Drug
Lead sponsor
Northwestern University
Other
Eligibility
20 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Estimating Average Vitamin A Requirements in Indonesian and American Women

NCT04123210
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
Vitamin A supplement, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
19 Years to 30 Years · Female only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Oct 19, 2026, 2:27 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin K and Glucose Metabolism in Children at Risk for Diabetes (Vita-K 'n' Kids Study)

NCT01972113
View directory record Official record
Conditions
Obesity, Insulin Resistance, Insulin Sensitivity, Prediabetes, Dyslipidemia, Diabetes
Interventions
Placebo-Control, Low-Dose Vitamin K2 (menaquinone-7; 45 mcg/d), High-Dose Vitamin K2 (menaquinone-7; 90 mcg/d)
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
8 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 19, 2026, 2:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Small Daily Doses of B-carotene on Breast Milk Retinol

NCT01803659
View directory record Official record
Conditions
Vitamin A Status
Interventions
b-carotene, retinyl palmitate, placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 11, 2015 · Synced Oct 19, 2026, 2:27 AM EDT