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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 29, 2026, 9:47 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 54 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Standard of Care Vitamin D Clear all
Suspended Phase 2 Interventional

Vitamin D Supplementation on Reported Rates of Taxane-Induced Neuropathy

NCT05259527
View directory record Official record
Conditions
Neuropathic Pain
Interventions
Ergocalciferol Capsules, Cholecalciferol Capsules
Drug · Dietary Supplement
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Not applicable Interventional Results available

Impact of Vitamin D Repletion in Hemodialysis Patients

NCT01175798
View directory record Official record
Conditions
Vitamin D Deficiency, End-stage Renal Disease
Interventions
Cholecalciferol
Drug
Lead sponsor
Mehrotra, Anita, M.D.
Individual
Eligibility
18 Years and older
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2014 · Synced Sep 29, 2026, 9:47 AM EDT
Recruiting Phase 2 Interventional

Impact of Vitamin D Therapy on Thyroid Function and Antibody Levels in Pediatric Graves' Disease

NCT07369063
View directory record Official record
Conditions
Graves Disease, Graves' Disease, Hyperthyroidism
Interventions
Ergocalciferol 50,000 IU, Methimazole
Drug
Lead sponsor
Northwell Health
Other
Eligibility
9 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Active, not recruiting Phase 3 Interventional

Efficacy and Safety of Encaleret Compared to Standard of Care in Participants With ADH1

NCT05680818
View directory record Official record
Conditions
Autosomal Dominant Hypocalcemia (ADH)
Interventions
Encaleret, Standard of Care
Drug · Dietary Supplement
Lead sponsor
Calcilytix Therapeutics, Inc., a BridgeBio company
Industry
Eligibility
16 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
11
States / cities
Oakland, California • Aurora, Colorado • Indianapolis, Indiana + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Phase 1 Interventional

Vitamin D Supplementation And Varicella Zoster Virus Vaccine Responsiveness In Older Long-Term Care Residents

NCT01262300
View directory record Official record
Conditions
Immunosenescence, Shingles
Interventions
Varicella Zoster Virus Vaccine (Zostavax)
Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
60 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Sep 29, 2026, 9:47 AM EDT
Terminated Not applicable Interventional

Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes

NCT02212652
View directory record Official record
Conditions
Vitamin D Deficiency, Vitamin D Insufficiency
Interventions
Vitamin D, Placebo, Standard of Care
Dietary Supplement · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 64 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 5, 2019 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Phase 2 Interventional Results available

Vitamin D3 for Aromatase Inhibitor Induced Arthralgias

NCT00867217
View directory record Official record
Conditions
Breast Cancer
Interventions
High Dose Vitamin D, Placebo, Standard Dose Vitamin D3, Letrozole 2.5mg
Dietary Supplement · Drug
Lead sponsor
Qamar Khan
Other
Eligibility
18 Years and older · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Westwood, Kansas • Wichita, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 8, 2018 · Synced Sep 29, 2026, 9:47 AM EDT
Active, not recruiting Early Phase 1 Interventional

Temporal Profile of Serum Vitamin D Levels in Foot and Ankle Fusion Surgery

NCT04772196
View directory record Official record
Conditions
Ankle Arthrodesis, MTP Arthrodesis
Interventions
Vitamin D3
Drug
Lead sponsor
Prisma Health-Midlands
Other
Eligibility
18 Years to 99 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
2
States / cities
Charleston, South Carolina • Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Not applicable Interventional

Vitamin D and Microbiota in Cystic Fibrosis

NCT02589444
View directory record Official record
Conditions
Vitamin D Deficiency, Cystic Fibrosis
Interventions
High-Dose Vitamin D3, Stool Sample, Sputum Sample, Sham Comparator, Blood draw
Dietary Supplement · Other · Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 29, 2026, 9:47 AM EDT
Active, not recruiting Phase 4 Interventional

Novel Precision Medicine Approach to Treatment of Osteoporosis Based on Bone Turnover

NCT05151484
View directory record Official record
Conditions
Age-Related Osteoporosis
Interventions
Teriparatide, Alendronate
Drug
Lead sponsor
Madhumathi Rao
Other
Eligibility
40 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Recruiting Phase 3 Interventional

A Trial of Etelcalcetide in Pediatric Participants With Secondary Hyperparathyroidism and Chronic Kidney Disease on Hemodialysis

NCT03633708
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Etelcalcetide, Standard of Care
Drug · Other
Lead sponsor
Amgen
Industry
Eligibility
0 Years to 18 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
10
States / cities
Los Angeles, California • Aurora, Colorado • Kansas City, Missouri + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Phase 1 Interventional

Liposomal Irinotecan Plus 5-FU / LV Combined With Paricalcitol in Patients With Advanced Pancreatic Cancer Progressed on Gemcitabine-based Therapy

NCT03883919
View directory record Official record
Conditions
Pancreatic Cancer, Pancreas Cancer, Cancer of the Pancreas
Interventions
5-FU, Leucovorin, Liposomal Irinotecan, Paricalcitol, Serum and plasma blood samples, Tumor biopsy
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Sep 29, 2026, 9:47 AM EDT
Terminated Phase 3 Interventional Results available

Pediatric Chronic Kidney Disease Safety and Efficacy

NCT01277510
View directory record Official record
Conditions
Chronic Kidney Disease, Hyperparathyroidism, Hyperparathyroidism, Secondary, Kidney Disease, Secondary Hyperparathyroidism
Interventions
cinacalcet capsule, placebo, Standard of Care
Drug
Lead sponsor
Amgen
Industry
Eligibility
6 Years to 17 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
18
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2020 · Synced Sep 29, 2026, 9:47 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Cinacalcet in Pediatric Patients With Secondary Hyperparathyroidism (SHPT) and Chronic Kidney Disease (CKD) on Dialysis

NCT02138838
View directory record Official record
Conditions
Chronic Kidney Disease, Secondary Hyperparathyroidism
Interventions
Cinacalcet HCl, Standard of Care
Drug · Dietary Supplement
Lead sponsor
Amgen
Industry
Eligibility
6 Years to 17 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
26
States / cities
Los Angeles, California • Wilmington, Delaware • Atlanta, Georgia + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2020 · Synced Sep 29, 2026, 9:47 AM EDT
Terminated Phase 2 Interventional Results available

Safety & Tolerability of Cinacalcet in Pediatric Patients With Chronic Kidney Disease and Secondary Hyperparathyroidism

NCT01439867
View directory record Official record
Conditions
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Interventions
Cinacalcet hydrochloride, Standard of Care
Drug
Lead sponsor
Amgen
Industry
Eligibility
28 Days to 2189 Days
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
17
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2020 · Synced Sep 29, 2026, 9:47 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 28, 2015 · Synced Sep 29, 2026, 9:47 AM EDT
Recruiting Phase 2 Interventional

Assessment of Medrol Dosepak to Reduce Opioid Consumption in Foot and Ankle Surgical Patients

NCT06780202
View directory record Official record
Conditions
Foot Injuries and Disorders, Ankle Injuries and Disorders, Achilles Tendon Injury
Interventions
medrol dosepak, HYDROcodone Oral Tablet
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 95 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Active, not recruiting Phase 4 Interventional

Preoperative Correction of Vitamin D Deficiency in Total Joint Arthroplasty (TJA)

NCT07006714
View directory record Official record
Conditions
Osteoarthritis, Vitamin D Deficiency
Interventions
Vitamin D3
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 96 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Recruiting Phase 2 Interventional

Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients

NCT04677816
View directory record Official record
Conditions
Triple Negative Breast Cancer, Vitamin D Deficiency, Invasive Breast Cancer
Interventions
Standard of Care Neoadjuvant Chemotherapy (NAC), Vitamin D3, Drug Diary
Drug · Dietary Supplement · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Not yet recruiting Phase 2 Interventional

HMB Plus Vitamin D to Preserve Muscle in Older Adults Starting Semaglutide

NCT07760948
View directory record Official record
Conditions
Type 2 Diabetes Mellitus (T2DM), Sarcopenia, Obesity, Muscle Loss, Older Adults
Interventions
Calcium-HMB Plus Vitamin D3, Matching placebo
Dietary Supplement · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
65 Years to 85 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Vitamin D and Physical Activity on Bone Health

NCT01419730
View directory record Official record
Conditions
Bone Metabolism Biomarkers, Bone Mineral Density, Physical Fitness
Interventions
Vitamin D3, Physical Activity
Drug · Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
191 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Not yet recruiting Phase 2 Interventional

Multiple Adjunct Therapies to Improve Immunotherapy Treatment in Patients With Locally Advanced or Metastatic Melanoma or Advanced Hepatocellular Cancer

NCT07836712
View directory record Official record
Conditions
Advanced Hepatocellular Carcinoma, Advanced Melanoma, Locally Advanced Melanoma, Metastatic Melanoma, Stage III Hepatocellular Carcinoma AJCC v8, Stage IV Hepatocellular Carcinoma AJCC v8
Interventions
Biospecimen Collection, Cholecalciferol, Computed Tomography, Desloratadine, Immunotherapy, Infusion Procedure, Magnesium Sulfate, Magnetic Resonance Imaging, Propranolol
Procedure · Dietary Supplement · Drug + 1 more
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 29, 2026, 9:47 AM EDT
Completed Not applicable Interventional

Perianal Maceration in Pediatric Ostomy Closure Patients

NCT04606004
View directory record Official record
Conditions
Perianal Dermatitis, Diaper Dermatitis, Postoperative Complications, Colostomy Site, Ileostomy - Stoma
Interventions
Stool application, Standard of care skincare
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
1 Day to 3 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 31, 2021 · Synced Sep 29, 2026, 9:47 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Relationships Between Vitamin D and Orthopedic Trauma

NCT04564625
View directory record Official record
Conditions
Fracture, Fracture Nonunion, Fractures, Bone, Vitamin D
Interventions
Vitamin D Assessment, Fracture
Other
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years to 25 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 29, 2026, 9:47 AM EDT