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, 3:39 AM EDT

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

Showing 1–24 of 41 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Maintenance Vitamin D Clear all
Completed Phase 1 Interventional

Vitamin D as a Nutritional Neoadjuvant During Photodynamic Therapy of Basal Cell Carcinoma

NCT03467789
View directory record Official record
Conditions
Basal Cell Carcinoma, Basal Cell Nevus Syndrome
Interventions
Dietary Vitamin D3 pre-treatment, Photodynamic therapy, Serum Maintenance Vitamin D3
Drug · Radiation
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Phoenix, Arizona • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional Results available

Vitamin D Levels in Stage IV Colorectal Cancer Patients

NCT01074216
View directory record Official record
Conditions
Colorectal Cancer
Interventions
vitamin D repletion with Cholecalciferol (vitamin D3 50,000 International Units)
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
5
States / cities
Basking Ridge, New Jersey • Commack, New York • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional Results available

S0535, Gemtuzumab and Combination Chemotherapy in Treating Patients With Previously Untreated Acute Promyelocytic Leukemia

NCT00551460
View directory record Official record
Conditions
Leukemia
Interventions
arsenic trioxide, gemtuzumab ozogamicin, mercaptopurine, methotrexate, tretinoin
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years to 120 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
192
States / cities
Roseville, California • Sacramento, California • Stanford, California + 139 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional

Phase II Randomized Study of the Effects of Growth Hormone on Children and Adolescents on Maintenance Dialysis

NCT00004340
View directory record Official record
Conditions
Renal Osteodystrophy, End Stage Renal Disease
Interventions
calcitriol, growth hormone
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
1 Year to 18 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1995
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Not applicable Interventional Results available

Vitamin D in HIV-Infected Patients on HAART

NCT01250899
View directory record Official record
Conditions
Vitamin D Deficiency, HIV
Interventions
Vitamin D
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 90 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2014 · Synced Oct 23, 2026, 3:39 AM EDT
Terminated Not applicable Interventional

Using Cinacalcet to Treat the Hypophosphatemia of Early Kidney Transplant

NCT01011114
View directory record Official record
Conditions
Hypophosphatemia, Renal Transplant
Interventions
Cinacalcet, Placebo
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2021 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Fat Malabsorption in Chronic Pancreatitis

NCT02849704
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
Creon36™
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
30 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2019 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 3 Interventional Results available

Chemotherapy and Radiation Therapy in Treating Young Patients With Newly Diagnosed, Previously Untreated, High-Risk Medulloblastoma/PNET

NCT00392327
View directory record Official record
Conditions
Anaplastic Medulloblastoma, Medulloblastoma
Interventions
Biospecimen Collection, Carboplatin, Cisplatin, Cyclophosphamide, Filgrastim, Isotretinoin, Lumbar Puncture, Magnetic Resonance Imaging, Quality-of-Life Assessment, Radiation Therapy, Vincristine Sulfate
Procedure · Drug · Biological + 2 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
3 Years to 22 Years
Enrollment
379 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2026
U.S. locations
170
States / cities
Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 126 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Early Phase 1 Interventional

Vitamin D, Leptin, Vitamin D Receptor Polymorphism, and Treatment-Related Morbidity in Ovarian Cancer

NCT03028519
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Vitamin D3
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Oct 23, 2026, 3:39 AM 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 23, 2026, 3:39 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Vitamin D Supplementation and Metabolism in Vitamin D Deficient Elderly

NCT01145703
View directory record Official record
Conditions
Vitamin D Deficiency, Metabolic Syndrome
Interventions
RDA Vitamin D3 only, Vitamin D2/3 Repletion only, Vitamin D2/3 Repletion + AEX, Vitamin D2/3 Repletion + RT
Dietary Supplement · Other
Lead sponsor
Baltimore VA Medical Center
Federal
Eligibility
40 Years to 85 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 5, 2014 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Rayaldee for Treating Mild to Moderate COVID-19

NCT04551911
View directory record Official record
Conditions
COVID-19, Coronavirus, SARS-CoV2 Infection
Interventions
Rayaldee, Placebo
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
10
States / cities
San Francisco, California • Miami, Florida • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 2 Interventional Results available

Study of Vitamin D in Untreated Metastatic Colorectal Cancer

NCT01516216
View directory record Official record
Conditions
Metastatic Colorectal Cancer
Interventions
FOLFOX + bevacizumab, Vitamin D
Drug · Dietary Supplement
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
18
States / cities
Boise, Idaho • Fruitland, Idaho • Meridian, Idaho + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 1 Interventional

Two Vitamin D Dosing Strategies in Children With Chronic Kidney Disease

NCT01909115
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
1000 IU of Vitamin D3, 4000 IU of Vitamin D3
Drug
Lead sponsor
Emory University
Other
Eligibility
9 Years to 21 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 19, 2020 · Synced Oct 23, 2026, 3:39 AM EDT
Withdrawn Not applicable Interventional

Vitamin D Repletion and Maintenance in IBD: How Much and How Often

NCT03053414
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Vitamin D Deficiency
Interventions
Vitamin D (ergocalciferol and/ or cholecalciferol)
Dietary Supplement
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 21, 2018 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Does Treatment of Hypovitaminosis D Increase Calcium Absorption?

NCT00581828
View directory record Official record
Conditions
Osteoporosis, Osteopenia, Vitamin D Deficiency, Hypoparathyroidism, Hypercalciuria, Hypercalcemia
Interventions
Vitamin D
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
50 Years to 66 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Oct 23, 2026, 3:39 AM EDT
Not yet recruiting Phase 3 Interventional

A Study of PLS240 in Pediatric Participants With Secondary Hyperparathyroidism and Chronic Kidney Disease on Hemodialysis

NCT07890584
View directory record Official record
Conditions
Chronic Kidney Disease (CKD), Secondary Hyperparathyroidism
Interventions
PLS240, Standard of Care
Drug · Combination Product
Lead sponsor
Pathalys Pharma
Industry
Eligibility
1 Month to 17 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2026 · Synced Oct 23, 2026, 3:39 AM EDT
Recruiting Early Phase 1 Interventional

VitD3 Supplementation in Patients With Multiple Myeloma

NCT05846880
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Lenalidomide, Maintenance Vitamin D, No maintenance Vitamin D
Drug
Lead sponsor
Amany Keruakous, MD, MS.
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Caloric Restriction and Protein Intake on Metabolism and Anabolic Sensitivity

NCT02945410
View directory record Official record
Conditions
Weight Loss, Starvation
Interventions
Caloric Restriction, Protein, Exercise, Calcium and Vitamin D, Maltodextrin
Other · Dietary Supplement
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
19 Years to 30 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 19, 2019 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Not applicable Interventional Results available

Oral Paricalcitol in Kidney Transplant Recipients

NCT00587158
View directory record Official record
Conditions
Transplant; Failure, Kidney, Renal Disease, End Stage, Hyperparathyroidism, Secondary
Interventions
Paricalcitol, Corticosteroid Avoidance Immune Suppression Protocol
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 13, 2013 · Synced Oct 23, 2026, 3:39 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Study of Parental Ratings of Quality of Life and Body Composition in 5-19 Year Olds While Participating in the Good NEWS 4 Kids Program

NCT01855009
View directory record Official record
Conditions
Quality of Life, Body Mass Index
Interventions
MannaBears, AlgaeCal Calcium, Calcium carbonate, Vitamin D3
Dietary Supplement
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
5 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2013 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A New Paradigm for Vitamin D Sufficiency

NCT02969850
View directory record Official record
Conditions
New Biomarkers for Measuring Vitamin D Level
Interventions
Vitamin D Supplementation, Placebo, Calcium
Dietary Supplement · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
60 Years to 90 Years · Female only
Enrollment
444 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2021 · Synced Oct 23, 2026, 3:39 AM EDT
Not listed No phase listed Observational

Emulated Study of Vitamin D Correction Vs Non-Correction

NCT06366776
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
9,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Camden, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 23, 2026, 3:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Introduction and Maintenance of Still Eating Protein Blends in Support of Infant Nutritional Goals

NCT03667118
View directory record Official record
Conditions
Food Allergy
Interventions
Food Supplement
Dietary Supplement
Lead sponsor
Northwestern University
Other
Eligibility
5 Months to 11 Months
Enrollment
705 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 13, 2019 · Synced Oct 23, 2026, 3:39 AM EDT