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ClinicalTrials.gov public records Last synced Oct 10, 2026, 6:06 PM EDT

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Showing 97–120 of 478 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Disorder of Vitamin D Clear all
Completed Not applicable Interventional

Vitamin D, Cardiovascular Disease, and African Americans

NCT01655810
View directory record Official record
Conditions
Vitamin D Deficiency, Type 2 Diabetes Mellitus, Cardiovascular Disease
Interventions
Vitamin D3, Calcium carbonate
Dietary Supplement
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years to 70 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 5, 2020 · Synced Oct 10, 2026, 6:06 PM EDT
Terminated Phase 2 Interventional Results available

High-Dose Cholecalciferol in Treating Patients Receiving Combination Chemotherapy and Bevacizumab as First-Line Therapy For Metastatic Colorectal Cancer

NCT01198548
View directory record Official record
Conditions
Stage IV Colon Cancer, Stage IV Rectal Cancer
Interventions
leucovorin calcium, bevacizumab, cholecalciferol, fluorouracil, oxaliplatin, pharmacological study
Drug · Biological · Dietary Supplement + 1 more
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 79 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 4 Interventional

A Randomized Phase IV Control Trial of Single High Dose Oral Vitamin D3 in Pediatric Patients Undergoing HSCT

NCT03176849
View directory record Official record
Conditions
Vitamin D Deficiency, Stem Cell Transplant Complications, Pediatric Cancer, Blood Disorder, Pediatric Acute Myeloid Leukemia, Pediatric Acute Lymphoid Leukemia, Myelodysplastic Syndromes, Sickle Cell Anemia in Children, Aplastic Anemia, Thalassemia in Children
Interventions
Vitamin D3, Standard Vitamin D3 Supplementation
Dietary Supplement
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
1 Year to 25 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced Oct 10, 2026, 6:06 PM EDT
Terminated Phase 2 Interventional

Arsenic Trioxide and Cholecalciferol (Vitamin D) in Treating Patients With Myelodysplastic Syndromes

NCT00104806
View directory record Official record
Conditions
Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms
Interventions
cholecalciferol, arsenic trioxide
Dietary Supplement · Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Up to 120 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2018 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 3 Interventional Results available

The Effects of Vitamin D Repletion in Vitamin D Deficient Patients With Stage 3 and 4 Chronic Kidney Disease

NCT01029002
View directory record Official record
Conditions
Chronic Renal Insufficiency, Proteinuria
Interventions
Vitamin D, Placebo
Drug · Other
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2023 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 2 Interventional Results available

Burosumab for Fibroblast Growth Factor-23 Mediated Hypophosphatemia in Fibrous Dysplasia

NCT05509595
View directory record Official record
Conditions
Fibrous Dysplasia Of Bone
Interventions
Burosumab
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
1 Year to 99 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 10, 2026, 6:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Strength and Balance in Gender- and Age-Matched Controls

NCT02110875
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
60 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 20, 2014 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 3 Interventional Results available

Cholecalciferol Supplementation for Sepsis in the ICU

NCT01896544
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 13, 2016 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Ga-DOTATATE PET for Phosphaturic Mesenchymal Tumors in Patients With Tumor Induced Osteomalacia

NCT03736564
View directory record Official record
Conditions
Osteomalacia
Interventions
68Ga-DOTATATE PET/CT
Combination Product
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 30, 2025 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Vitamin D and Calcium Homeostasis for Prevention of Type 2 Diabetes

NCT00436475
View directory record Official record
Conditions
Glucose Intolerance, Type 2 Diabetes Mellitus, Metabolic Syndrome
Interventions
Vitamin D3 2,000 IU orally once daily, Calcium Carbonate 400 mg orally twice daily, Vitamin D3-Placebo, Calcium-Placebo
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
40 Years and older
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Not applicable Interventional

Vitamin D Effect on Calcium Absorption on Persons on Hemodialysis

NCT01325610
View directory record Official record
Conditions
Chronic Kidney Disease, End Stage Renal Disease, Vitamin D Deficiency
Interventions
cholecalciferol
Dietary Supplement
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 4, 2012 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Not applicable Interventional

The Effect of Vitamin D Repletion on Small Low Density Lipoprotein (LDL) Particle Number in Subjects at Elevated Cardiovascular Risk

NCT01008384
View directory record Official record
Conditions
Atherosclerosis
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 85 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2012 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 4 Interventional Results available

Vitamin D Plus Fluticasone Propionate

NCT01103934
View directory record Official record
Conditions
Seasonal Allergic Rhinitis
Interventions
Vitamin D3, Placebo, Fluticasone Propionate
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2014 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Not applicable Interventional Results available

Treatment of Vitamin D Deficiency in Intestinal Rehabilitation Clinic Patients With a Portable Ultraviolet B Lamp

NCT01930539
View directory record Official record
Conditions
Vitamin D Deficiency, Short Bowel Syndrome
Interventions
Ultraviolet B lamp
Device
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 4 Interventional Results available

The Effect of Paricalcitol on Creatinine Filtration, Secretion and Glomerular Filtration Rate

NCT01163162
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Paricalcitol
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 21, 2013 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Evaluate Vectical in Combination With Clobex Spray to Treatment Plaque Psoriasis

NCT01205880
View directory record Official record
Conditions
Psoriasis
Interventions
Calcitriol ointment, Clobetasol spray
Drug
Lead sponsor
Emer, Jason, M.D.
Individual
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2010 · Synced Oct 10, 2026, 6:06 PM EDT
Completed No phase listed Observational

FGF23 and Angiotensin-(1-7) in Hypophosphatemia (GAP)

NCT03489993
View directory record Official record
Conditions
Hypophosphatemia, X-linked Hypophosphatemia, Renin-angiotensin System, Left Ventricular Hypertrophy
Interventions
Ang II and Ang-(1-7), FGF23 and klotho
Diagnostic Test
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
2 Years to 24 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 5, 2022 · Synced Oct 10, 2026, 6:06 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vitamin D and Omega-3 Hypertension Trial (VITAL Hypertension)

NCT01653678
View directory record Official record
Conditions
Hypertension
Interventions
Vitamin D-3 (cholecalciferol), 2000 IU, Omega-3 fatty acids (fish oil), Vitamin D placebo, Fish oil placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years to 99 Years
Enrollment
25,875 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 2 Interventional Results available

A SU2C Catalyst® Trial of a PD1 Inhibitor With or Without a Vitamin D Analog for the Maintenance of Pancreatic Cancer

NCT03331562
View directory record Official record
Conditions
Pancreatic Cancer, Pancreas Adenocarcinoma, Advanced Pancreatic Cancer, Metastatic Pancreatic Cancer, Metastatic Pancreatic Adenocarcinoma
Interventions
Pembrolizumab, paricalcitol, placebo
Drug
Lead sponsor
Translational Genomics Research Institute
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
6
States / cities
Scottsdale, Arizona • Duarte, California • Westwood, Kansas + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 27, 2022 · Synced Oct 10, 2026, 6:06 PM EDT
Terminated Phase 4 Interventional

Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease

NCT00571285
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Vitamin D3, Vitamin D3 - high dose, Placebo
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 89 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 24, 2017 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 4 Interventional

Study of Vitamin D in the Severely Mentally Ill

NCT01169142
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Bronx Psychiatric Center
Government
Eligibility
19 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2018 · Synced Oct 10, 2026, 6:06 PM EDT
Terminated Not applicable Interventional

High Dose Vitamin D Replacement in Patients Undergoing Hematopoietic Stem Cell Transplantation

NCT02876822
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D
Dietary Supplement
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 20, 2020 · Synced Oct 10, 2026, 6:06 PM EDT
Terminated Phase 2 Interventional Results available

Study to Assess Prevention of Oxaliplatin-induced Neurotoxicity Through Vitamin D Pathway

NCT01499940
View directory record Official record
Conditions
Neurotoxicity
Interventions
Vitamin D3
Drug
Lead sponsor
Gerald Higa, PharmD.
Other
Eligibility
18 Years to 90 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Nov 10, 2021 · Synced Oct 10, 2026, 6:06 PM EDT
Completed Phase 3 Interventional Results available

Study of the Effect of Vitamin D as an Add-on Therapy to Corticosteroids in Asthma

NCT01248065
View directory record Official record
Conditions
Asthma
Interventions
Vitamin D3, Ciclesonide
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
408 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
16
States / cities
San Francisco, California • Denver, Colorado • Atlanta, Georgia + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2014 · Synced Oct 10, 2026, 6:06 PM EDT