Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 3, 2026, 12:46 AM EDT

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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
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Conditions
Financial Hardship, Mental Health Issue, Substance Use
Interventions
Financial Capability Support with Peer Support Services
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
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
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Vitamin D Replacement on Insulin Sensitivity

NCT01268111
Conditions
Insulin Sensitivity
Interventions
Ergocalciferols, Placebo
Drug
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Odessa, Texas
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
Conditions
Heart Failure, Mild Cognitive Impairment
Interventions
Vita, Com, Vita+Com
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
55 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Completed Not applicable Interventional Accepts healthy volunteers

Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCD

NCT03632876
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
Withdrawn No phase listed Observational Accepts healthy volunteers

Vitamin A, Its Receptors and Asthma

NCT00628329
Conditions
Asthma
Interventions
Not listed
Lead sponsor
University of Kansas
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Cardiovascular Diseases, Chronic Kidney Disease Stage 3, Chronic Kidney Disease Stage 4, Chronic Kidney Disease Stage 5, Vitamin K Deficiency, Hemodialysis
Interventions
Vitamin K2 (menaquinone-7; 360-mcg/d), Placebo-Control
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Conditions
Multiple Myeloma, Smoldering, Multiple Myeloma, Monoclonal Gammopathy of Undetermined Significance
Interventions
Omega-3, Curcumin, Probiotic, Whole food, plant-based diet (WFPBD)
Dietary Supplement · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Hyperpigmentation, Dark Spots
Interventions
Cosmetic dark spot corrector serum
Other
Lead sponsor
Revision Skincare
Industry
Eligibility
25 Years to 65 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Richardson, Texas
Completed No phase listed Observational Accepts healthy volunteers

Retinol-induced Dermatitis in Aged Skin

NCT00857610
Conditions
Aged Skin, Photoaged Skin
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 60 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Allogeneic Hematopoietic Stem Cell Transplantation Recipient
Interventions
Vitamin A Compound, Best Practice
Dietary Supplement · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Golden Rice Carotenoids in Humans

NCT00680355
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
Conditions
Vitamin A Deficiency, Vitamin A Toxicity
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Madison, Wisconsin
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Dark-Adapted Retinal Function Response in Choroideremia (DARC) Study

NCT05045703
Conditions
Choroideremia
Interventions
Vitamin A palmitate
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
15 Years and older · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers

Prospective Study of Topical Adapinoid Versus Topical Retinol

NCT05778760
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
Conditions
Leber Congenital Amaurosis, Leber Congenital Amaurosis (LCA)
Interventions
OPGx-RDH12
Drug
Lead sponsor
Opus Genetics, Inc
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2034
U.S. locations
3
States / cities
Phoenix, Arizona • Philadelphia, Pennsylvania • Houston, Texas
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
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
Recruiting Not applicable Interventional

The Continuity Study

NCT07216573
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
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
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
Conditions
Acne Scarring
Interventions
Universal Peel, Microneedling, Post-Microneedling Skin Care, Post-Universal Peel Skin Care
Drug · Procedure
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Englewood Cliffs, New Jersey
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