N/A N=222 Association Between Vitamin D Receptor Polymorphism and Serum Vitamin D Levels in Children With Low-Energy Fractures
Vitamin D Receptor Defect
Primary: Vitamin D Status; VDR Status — 13.81; 17.49 ng/ml
Clinical Trial Search
Completed trials with posted results — search by concept, filter by the parameters that matter at the bedside.
N/A N=20 Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism
Secondary Hyperparathyroidism
Primary: The Level of Activated Vitamin D (1,25-dihydroxyvitamin D) After Parathyroid Hormone Infusion at Baseline, 4 and 8 Hours — 40.6; 46.2; 39.8; 58.8 pg/ml — p=0.1
N/A N=96 Impact of Vitamin D Repletion in Hemodialysis Patients
Vitamin D Deficiency · End-stage Renal Disease
Primary: Change in 25OH-Vitamin D Level — 15.8; 40.9 ng/dL
N/A N=90 Vitamin D Replacement After Kidney Transplant
Kidney Transplantation · Vitamin D Deficiency
Primary: Compare Efficacy and Safety of Two Vitamin D Supplements of These Doses in Normalizing Vitamin D Concentrations. — 8; 29 ng/ml
Phase 4 N=79 Vitamin D Increases Serum Levels of the Soluble Receptor for Advanced Glycation End Products in Women With PCOS
Polycystic Ovary Syndrome · Vitamin D Deficiency
Primary: AMH Levels in Women With PCOS — 1.4; 0 ng/mL
N/A N=125 Vitamin D, Insulin Resistance, and Cardiovascular Disease
Vitamin D Deficiency · Insulin Resistance · Type 2 Diabetes Mellitus
Primary: Hypertension (24h Blood Pressure, Central Blood Pressure, and Office BP) — 126.6; 131.1; 79.2; 78.9 mm Hg
N/A N=96 Vitamin D Repletion in Coronary Artery Disease
Vitamin D Deficiency · Coronary Artery Disease · Endothelial Dysfunction
Primary: Endothelial Function — 0.13; -0.04 reactive hypermia index
N/A N=83 Treatment of Vitamin D Deficiency in Patients With Rheumatoid Arthritis
Rheumatoid Arthritis · Vitamin D Deficiency
Primary: Disease Activity Score (DAS) 28 — 3.4; 2.8; 3.5; 3.1 composite score
N/A N=666 Individualized Response to Vitamin D Treatment Study
Characteristics That Modify the Response to Cholecalciferol Treatment
Primary: Change in Serum 1,25(OH)2D Concentration — 2; -1 pg/mL
N/A N=92 Vitamin D Deficiency, Insulin Resistance and FGF-23
Vitamin D Deficiency
Primary: Fibroblast Growth Factor 23 (FGF23) After 12 Weeks of Weekly Ergocalciferol 50000 Units — 74; 39 pg/mL — p=<0.05
Phase 4 N=29 Vitamin D Repletion in Stone Formers With Hypercalciuria
Nephrolithiasis · Urolithiasis · Idiopathic Hypercalciuria
Primary: Change in 24 Hour Urine Calcium — 2 mg/day
N/A N=19 Ultraviolet Light And Vitamin D In Subjects With Fat Malabsorption Or After Gastric Bypass Surgery
Vitamin D Deficiency · Gastrointestinal Diseases
Primary: # of Pts w/ Enhanced Vitamin D Status — 3; 3 Participants
Phase 2 N=55 Supplementation With Cholecalciferol in Dialysis Patients
Chronic Kidney Disease
Primary: Change From Baseline in Interleukin-6 at 12 Weeks. — 9.0; 8.1; 9.6; 4.6 pg/mL
N/A N=11 Treatment of Vitamin D Deficiency in Intestinal Rehabilitation Clinic Patients With a Portable Ultraviolet B Lamp
Vitamin D Deficiency · Short Bowel Syndrome
Primary: 25 Hydroxy Vitamin D Levels — 26; 14; 19; 17 ng/mL
N/A N=30 Improving Vitamin D Status In Cystic Fibrosis
Cystic Fibrosis
Primary: 25-hydroxyvitamin D — 21.2; 24.4; 28.2 ng/mL
N/A N=203 The Impact of Vitamin D on Tuberculosis Among Koreans
Tuberculosis
Primary: Prevalence of Vitamin D Deficiency — 36.2; 27.3 participants, %
Phase 3 N=130 Vitamin D in Vulnerable Adults (VIVA-VA)
Frail Elderly · Vitamin d Deficiency
Primary: Change in Short Physical Performance Battery Test Score — 7.3; 7.0 units on a scale
N/A N=99 hCAP18 Levels and Vitamin D Deficiency in Healthy Subjects
Healthy Subjects · Vitamin D Deficiency
Primary: hCAP18 Levels — 762; 639 ng/ml
Phase 1 N=12 Effect of Vitamin D Replacement on Insulin Sensitivity
Insulin Sensitivity
Primary: M Value (Insulin Stimulated Glucose Uptake) — 4.1; 5.6; 4.7; 5.5 mg/kg.min — p=0.4
Phase 2 N=23 Cathelicidin and Vitamin D: Impact on Populations At-Risk and With COPD
Pulmonary Disease, Chronic Obstructive
Primary: Change From Baseline in Lung Cathelicidin Level at 8 Weeks — -65.5 pg/mL — p=0.21
Phase 4 N=44 Vitamin D and Coronary Calcification Study
Chronic Kidney Disease · Vitamin D Deficiency · Coronary Calcification
Primary: Coronary Artery (CAC) Score Progression — 74.38; 106.32 Agatston units
Phase 2 N=67 Randomized Controlled Trial of Calcitriol vs. Placebo Among Critically-ill Patients With Sepsis
Severe Sepsis or Septic Shock
Primary: Plasma Cathelicidin (hCAP18) Protein Levels at 48 Hours — 76; 82 ng/ml — p=0.25
N/A N=9 Tumor Necrosis Factor Decreases Vitamin D Dependant Calcium Absorption
Rheumatoid Arthritis · Crohn's Disease
Primary: Intestinal Absorption of Calcium
Phase 2 N=62 Vitamin D for Sickle-cell Respiratory Complications
Sickle Cell Disease · Vitamin D Deficiency · Acute Chest Syndrome
Primary: Mean Annual Rate of Respiratory Events — 3.91; 4.34; 3.34; 4.28 events per year
Phase 4 N=183 Treatment Study of Vitamin D Deficiency in Adolescents
Vitamin D Deficiency
Primary: Change in 25(OH)D Serum Level After Treatment for Vitamin D Deficiency (Deficiency Defined as 25(OH)D <20 ng/dL) — 6.2; 24.9; 21 ng/mL
Phase 2 N=46 High Dose Vitamin D for Sickle Cell Disease
Sickle Cell Disease
Primary: 25 (OH)D in Nmol/L Between Baseline and 6 Months — 55.2; 50.4 nmol/L — p=0.0507
Phase 3 N=128 Vitamin D and Arterial Function in Patients With Chronic Kidney Disease
Arterial Dysfunction · Chronic Kidney Disease
Primary: Compare the Difference Between the Calcitriol and Cholecalciferol Groups in Conduit Artery Endothelium-dependent Dilation (EDD) in Response to Treatment. — -0.5; 0.3…
N/A N=84 Cord Blood 25(oh)-Vitamin D Level in Preterm Infants and Associated Morbidities
Respiratory Distress Syndrome
Primary: Respiratory Distress Syndrome — 52; 3 participants
Phase 3 N=265 Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina
Vitamin D Deficiency · Pregnancy
Primary: 25-hydroxyvitamin D at Visit 7 — 36.7; 39.8 ng/mL
N/A N=22 Treatment of Hypovitaminosis D in Rheumatoid Arthritis
Rheumatoid Arthritis · Hypovitaminosis D
Primary: Parathyroid Hormone Level — 19; 20 pg/mL