Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 23, 2026, 6:12 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 337–360 of 530 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: phytosterol Clear all
Completed Phase 3 Interventional Results available

Vitamin D Supplementation in Multiple Sclerosis

NCT01490502
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
Vitamin D3
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
16
States / cities
Carmichael, California • San Francisco, California • Stanford, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2022 · Synced Oct 23, 2026, 6:12 AM EDT
Not listed No phase listed Observational

Impact of a Chewable Plant Sterol Supplement on LDL-C in A Real-World Setting

NCT04642742
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Chewable plant sterol
Dietary Supplement
Lead sponsor
Piper Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Altos, California
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 23, 2026, 6:12 AM EDT
Completed No phase listed Observational

Vitamin D3 Supplementation in Pediatric IBD: Weely vs Daily Dosing Regimens

NCT02256605
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD)
Interventions
Vitamin D-3
Dietary Supplement
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
5 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 29, 2015 · Synced Oct 23, 2026, 6:12 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME

NCT02174718
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Transdermal D Patch, Oral vitamin D3, Placebo patch, Oral placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 2, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Single Wintertime Dose of Vitamin D3 to Prevent Winter Decline in Vitamin D Status in Healthy Adults

NCT01924910
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
250,000 IU cholecalciferol as single, oral dose, Placebo
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 13, 2017 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 2 Interventional

Cholecalciferol in Treating Patients With Myelodysplastic Syndrome

NCT00068276
View directory record Official record
Conditions
Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms
Interventions
cholecalciferol
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Up to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Consumption of Post-harvest UV-B Treated Mushrooms on Vitamin D Status of Healthy Adults

NCT01443897
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
1,000 IU vitamin D2, placebo capsule, mushrooms, UVB-treated mushrooms, 400 IU vitamin D2, UVB-treated mushrooms, 1,000 IU vitamin D2
Dietary Supplement · Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
20 Years to 59 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2011 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Can Vitamin D Reduce the Burden of COVID-19?

NCT07128069
View directory record Official record
Conditions
COVID-19
Interventions
Vitamin D 400IU, Vitamin D 4000IU
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
2,093 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Recruiting Early Phase 1 Interventional

Immunological Effects of Vitamin D Replacement Among Black/African American Prostate Cancer Patients

NCT05045066
View directory record Official record
Conditions
Localized Prostate Carcinoma, Stage IV Prostate Cancer AJCC v8, Locally Recurrent Prostate Carcinoma, Metastatic Prostate Carcinoma
Interventions
Cholecalciferol, Quality-of-Life Assessment, Biospecimen Collection
Dietary Supplement · Other · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Male only
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
2
States / cities
Scottsdale, Arizona • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Withdrawn Not applicable Interventional

Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients

NCT01858051
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Oct 23, 2026, 6:12 AM EDT
Not listed Phase 4 Interventional

Vitamin D Augmentation of Tekturna (Aliskiren) in Hypertension

NCT01472796
View directory record Official record
Conditions
Hypertension
Interventions
Vitamin D (cholecalciferol), Tekturna(Aliskiren) plus placebo
Dietary Supplement · Drug
Lead sponsor
Wayne State University
Other
Eligibility
30 Years to 74 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 16, 2011 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Results available

Vitamin D and Prebiotics for Intestinal Health in Cystic Fibrosis

NCT04118010
View directory record Official record
Conditions
Cystic Fibrosis, Dysbiosis
Interventions
Vitamin D3, Placebo vitamin D3, Inulin, Placebo Inulin
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low vs. Moderate to High Dose Vitamin D for Prevention of COVID-19

NCT04868903
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
1,475 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Pharmacokinetic Study of Daily Versus Monthly High-Dose Cholecalciferol Supplementation

NCT01079923
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Single High Dose Cholecalciferol, Daily Dose Cholecalciferol
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 20, 2012 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Results available

PK and PD Study of Calcitriol 3 mcg/g Ointment in Pediatric Subjects With Plaque Psoriasis

NCT01766440
View directory record Official record
Conditions
Plaque Psoriasis
Interventions
Calcitriol 3 mcg/g ointment
Drug
Lead sponsor
Galderma R&D
Industry
Eligibility
2 Years to 12 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
8
States / cities
San Diego, California • Indianapolis, Indiana • Ann Arbor, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2021 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional

Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Prostate Cancer

NCT03290417
View directory record Official record
Conditions
Prostate Cancer
Interventions
Vitamin D, Omega-3, Turmeric
Dietary Supplement
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Male only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 18, 2020 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Results available

Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses

NCT04140292
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Photodynamic therapy (PDT), Vitamin D3
Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 24, 2022 · Synced Oct 23, 2026, 6:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D Deficiency in Elderly African American Women in Central Texas

NCT01971411
View directory record Official record
Conditions
Vitamin D Deficiency, Osteoporosis, Osteopenia
Interventions
Calcium 500mg with 200 IU Vitamin D - 2 tablets daily, Blood levels of Vitamin D, Serum CTX, Mg, Ca++ and iPTH, Usual sun exposure documentation, Dietary intake of calcium, vitamin D, magnesium
Drug · Procedure · Behavioral
Lead sponsor
McLennan County Medical Education and Research Foundation
Other
Eligibility
70 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Oral Sodium Fusidate (CEM-102) for the Treatment of Staphylococcal Bone or Joint Infections

NCT02569541
View directory record Official record
Conditions
Refractory Bone or Joint Infections
Interventions
sodium fusidate
Drug
Lead sponsor
Arrevus Inc.
Industry
Eligibility
12 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
19
States / cities
Fountain Valley, California • San Dimas, California • Sylmar, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2020 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Oral Vitamin D Versus Narrow-Band UV-B Exposure on the Lipid Profile

NCT01688102
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Oral Vitamin D3, Ultraviolet Light
Dietary Supplement · Radiation
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 70 Years
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

DAYLIGHT: Vitamin D Therapy in Individuals at High Risk of Hypertension

NCT01240512
View directory record Official record
Conditions
Hypertension, Vitamin D Deficiency, Pre-Hypertension
Interventions
Cholecalciferol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
534 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
3
States / cities
Hartford, Connecticut • Boston, Massachusetts • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 9, 2017 · Synced Oct 23, 2026, 6:12 AM EDT
Active, not recruiting Phase 2 Interventional

DePTH: De-emphasize PTH

NCT06288451
View directory record Official record
Conditions
Kidney Failure, Chronic, Chronic Kidney Disease-Mineral and Bone Disorder
Interventions
Oral calcitriol with cinacalcet rescue, IV activated vitamin D
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Oct 23, 2026, 6:12 AM EDT
Terminated Phase 2 Interventional Results available

Vitamin D and Breast Cancer: Does Weight Make a Difference?

NCT01472445
View directory record Official record
Conditions
Breast Cancer
Interventions
Vitamin D
Drug
Lead sponsor
Melinda Telli
Other
Eligibility
18 Years and older · Female only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Potential Vitamin D Effects on Muscle: a Pilot Study

NCT00593996
View directory record Official record
Conditions
Dysphagia, Fecal Incontinence, Urinary Incontinence
Interventions
Ergocalciferol (vitamin D2)
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
70 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Oct 23, 2026, 6:12 AM EDT