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ClinicalTrials.gov public records Last synced Nov 15, 2026, 3:02 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 97–120 of 121 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Vitamin D3 - high dose Clear all

Conditions: Urticaria, Angioedema, Hives, Swelling
Interventions: High Dose Vitamin D3, Low Dose Vitamin D3; Drug
Lead sponsor: University of Nebraska; Other
Eligibility: 19 Years and older
Enrollment: 42 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2013
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Adult Acute Megakaryoblastic Leukemia (M7), Adult Acute Monoblastic Leukemia (M5a), Adult Acute Monocytic Leukemia (M5b), Adult Acute Myeloblastic Leukemia With Maturation (M2), Adult Acute Myeloblastic Leukemia Without Maturation (M1), Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Del(5q), Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Adult Acute Myelomonocytic Leukemia (M4), Adult Erythroleukemia (M6a), Adult Pure Erythroid Leukemia (M6b), Untreated Adult Acute Myeloid Leukemia
Interventions: cholecalciferol, pharmacological study, laboratory biomarker analysis; Dietary Supplement · Other
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years and older
Enrollment: 4 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Buffalo, New York

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 – 2026
U.S. locations: 1
States / cities: New Hyde Park, New York

Conditions: Breast Cancer
Interventions: Celecoxib, Placebo, Cholecalciferol; Drug
Lead sponsor: Hartford Hospital; Other
Eligibility: 18 Years and older · Female only
Enrollment: 45 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2016
U.S. locations: 1
States / cities: Grand Forks, North Dakota

Conditions: Osteogenesis Imperfecta
Interventions: Setrusumab, Placebo; Biological · Other
Lead sponsor: Ultragenyx Pharmaceutical Inc; Industry
Eligibility: 5 Years to 25 Years
Enrollment: 183 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2027
U.S. locations: 22
States / cities: Little Rock, Arkansas • Los Angeles, California • Sacramento, California + 19 more

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

Conditions: Rheumatoid Arthritis, Crohn's Disease
Interventions: calcitriol; Drug
Lead sponsor: Atlanta VA Medical Center; Federal
Eligibility: 18 Years to 50 Years · Male only
Enrollment: 9 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2007 – 2009
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Cutaneous Lupus Erythematosus
Interventions: vitamin D; Dietary Supplement
Lead sponsor: Emory University; Other
Eligibility: 18 Years and older
Enrollment: 3 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2013
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Systemic Lupus Erythematosus
Interventions: Vitamin D3 6000 IU, Vitamin D3 400 IU; Drug
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 5 Years to 20 Years
Enrollment: 7 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2014
U.S. locations: 13
States / cities: Los Angeles, California • Palo Alto, California • San Francisco, California + 9 more

Conditions: Vitamin D Deficiency, Burns
Interventions: Ergocalciferol Capsules; Drug
Lead sponsor: University of Texas Southwestern Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 48 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2025
U.S. locations: 1
States / cities: Dallas, Texas

Conditions: Biomarker Change Linked to Breast Cancer
Interventions: placebo/celecoxib 400 mg and cholecalciferol 400 IU/cholecalciferol 2,000 IU; Drug
Lead sponsor: Hartford Hospital; Other
Eligibility: 18 Years and older · Female only
Enrollment: 31 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2016
U.S. locations: 1
States / cities: Grand Forks, North Dakota

Conditions: Breast Cancer
Interventions: Cholecalciferol, Placebo capsule; Drug
Lead sponsor: Columbia University; Other
Eligibility: 21 Years and older · Female only
Enrollment: 20 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2015
U.S. locations: 1
States / cities: New York, New York

Conditions: Breast Cancer
Interventions: 800 IU Vitamin D Supplement, 50,000 IU Vitamin D supplement; Drug
Lead sponsor: Mothaffar Rimawi; Other
Eligibility: 18 Years and older · Female only
Enrollment: 93 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2018
U.S. locations: 2
States / cities: St Louis, Missouri • Houston, Texas

Conditions: Kidney Transplantation, Vitamin D Deficiency
Interventions: Standard vitamin D3 treatment, High dose vitamin D3 treatment; Dietary Supplement
Lead sponsor: University of Nebraska; Other
Eligibility: 19 Years and older
Enrollment: 116 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2023
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Vitamin D Deficiency
Interventions: High Dose Vitamin D3, Low Dose Vitamin D3, Placebo; Dietary Supplement
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: Up to 75 Years · Female only
Enrollment: 230 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2014
U.S. locations: 1
States / cities: Madison, Wisconsin

Conditions: Metastatic Melanoma
Interventions: Calcitriol, Temozolomide; Dietary Supplement · Drug
Lead sponsor: Northwestern University; Other
Eligibility: 18 Years and older
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2012
U.S. locations: 1
States / cities: Chicago, Illinois

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

Conditions: Obesity, Insulin Resistance, Vitamin D Deficiency
Interventions: Vitamin D3; Drug
Lead sponsor: Perrin C White, MD; Other
Eligibility: 6 Years to 17 Years
Enrollment: 109 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Dallas, Texas

Conditions: HIV-1 Infection
Interventions: EFV/FTC/TDF, Calcium Carbonate, Vitamin D3, Placebo for calcium carbonate, Placebo for vitamin D3; Drug
Lead sponsor: Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections; Network
Eligibility: 18 Years and older
Enrollment: 167 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2013
U.S. locations: 38
States / cities: Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 27 more

Conditions: Inflammatory Bowel Disease, Crohn Disease, Ulcerative Colitis, Vitamin D Deficiency
Interventions: vitamin D3; Dietary Supplement
Lead sponsor: Boston Children's Hospital; Other
Eligibility: 5 Years to 25 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2020 – 2025
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Colorectal Adenocarcinoma
Interventions: Bevacizumab, Oxaliplatin, Leucovorin Calcium, Fluorouracil, Irinotecan Hydrochloride, Irinotecan, Cholecalciferol, Quality-of-Life Assessment, Questionnaire Administration; Drug · Dietary Supplement · Other
Lead sponsor: Alliance for Clinical Trials in Oncology; Other
Eligibility: 18 Years and older
Enrollment: 455 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2027
U.S. locations: 1027
States / cities: Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 676 more

Conditions: Magnesium Deficiency, Calcium Metabolism Disorders
Interventions: vitamin D3; Dietary Supplement
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 30 Years to 75 Years · Female only
Enrollment: 39 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2014
U.S. locations: 1
States / cities: Madison, Wisconsin

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

Conditions: Vitamin D Deficiency, Rotator Cuff Tears
Interventions: Vitamin D3 supplementation, Placebo; Dietary Supplement · Other
Lead sponsor: Community Memorial Health System; Other
Eligibility: 18 Years to 65 Years
Enrollment: 240 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2024
U.S. locations: 2
States / cities: Ventura, California

Search by objective public record fields.

The Role of Vitamin D in Chronic Urticaria and Angioedema Treatment

Cholecalciferol in Treating Patients With Acute Myeloid Leukemia Undergoing Intensive Induction Chemotherapy

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

Changes in Breast Cancer Biomarkers Using Synergistic Prostaglandin Inhibitors

Setrusumab vs Placebo for Osteogenesis Imperfecta

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

Tumor Necrosis Factor Decreases Vitamin D Dependant Calcium Absorption

Vitamin D Status, Disease Specific and Quality of Life Outcomes in Patients With Cutaneous Lupus

Vitamin D3 Treatment in Pediatric Systemic Lupus Erythematosus

Vitamin D Deficiency in Adults Following a Major Burn Injury

Changes in Biomarkers Using Prostaglandin Inhibitors

Vitamin D in Postmenopausal Women at High Risk for Breast Cancer

High Dose Vitamin D vs Standard Dose Vitamin D Study

Vitamin D Replacement After Kidney Transplant

Treatment of Vitamin D Insufficiency

Phase I/II Study of High-Dose Calcitriol Plus Temodar for Patients With Metastatic Melanoma

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

Correction of Vitamin D Levels and Its Effect on Insulin Resistance and Weight Gain in Obese Youth

High Dose Vitamin D and Calcium for Bone Health in Individuals Initiating HAART

High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Biologic Therapy

Vitamin D3 With Chemotherapy and Bevacizumab in Treating Patients With Advanced or Metastatic Colorectal Cancer

How Does Magnesium Status Influence Calcium Homeostasis?

Vitamin D and Microbiota in Cystic Fibrosis

Vitamin D3 Supplementation for Vitamin D Deficiency in Rotator Cuff Repair Surgery