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Found 394 studies with search of: calcium or vitamin d
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Rank Status Study
1 Recruiting Primary Hyperparathyroidism: Does a Systematic Treatment Improve the Calcium and Bone Metabolism After Surgery?
Conditions: Primary Hyperparathyroidism;   Bone Metabolism
Intervention: Drug: Calcium and vitamin D
2 Active, not recruiting The Interaction Between Calcium and Vitamin D Intake
Condition: Osteoporosis
Intervention: Dietary Supplement: Calcium and vitamin D supplementation
3 Active, not recruiting Comparison of the Efficacy of Calcium-Cholecalciferol Foodstuffs and Calcium-Cholecalciferol Supplement
Conditions: Vitamin D Status;   Healthy
Interventions: Dietary Supplement: fortified milk;   Dietary Supplement: plain milk;   Dietary Supplement: fortified orange juice;   Dietary Supplement: plain orange juice;   Dietary Supplement: calcium-vitamin D supplement;   Dietary Supplement: Placebo
4 Completed Vitamin D and Genetics in Nutritional Rickets
Condition: Nutritional Rickets
Interventions: Dietary Supplement: Vitamin D + Calcium;   Dietary Supplement: Calcium;   Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
5 Completed Does Treatment of Hypovitaminosis D Increase Calcium Absorption?
Conditions: Osteoporosis;   Osteopenia;   Vitamin D Deficiency;   Hypoparathyroidism;   Hypercalciuria;   Hypercalcemia
Intervention: Drug: Vitamin D
6 Enrolling by invitation Vitamin D and Calcium Study
Condition: Spinal Cord Injury
Intervention: Dietary Supplement: Vitamin D and Calcium
7 Not yet recruiting The Effect of Vitamin D Repletion on Urinary Calcium Excretion in Kidney Stone Formers With Vitamin D Deficiency and High Urinary Calcium
Conditions: Vitamin D Deficiency;   Nephrolithiasis
Intervention: Drug: vitamin D (ergocalciferol)
8 Completed Calcium and Vitamin D Malnutrition in Elderly Women
Conditions: Osteoporosis;   Secondary Hyperparathyroidism
Interventions: Dietary Supplement: calcium supplementation;   Dietary Supplement: calcium and vitamin D3 supplementation;   Dietary Supplement: Placebo
9 Completed The Effect of Vitamin D and Calcium on Bone in Pediatric HIV
Conditions: HIV Infection;   Bone Mass
Intervention: Dietary Supplement: cholecalciferol plus calcium carbonate
10 Completed Effect of Calcium Supplement Particle Size and Vitamin D Supplement on Calcium Retention in Adolescent Girls
Condition: Osteoporosis
Interventions: Dietary Supplement: Small Particle Size Calcium Carbonate Supplement;   Dietary Supplement: Large Particle Size Calcium Carbonate Supplement;   Dietary Supplement: Vitamin D;   Dietary Supplement: Calcium Placebo
11 Active, not recruiting Calcium, Vitamin D, and Colon Cancer Risk Biomarkers
Conditions: Colonic Polyps;   Adenomatous Polyps
Interventions: Drug: Calcium (as calcium carbonate);   Drug: Vitamin D;   Drug: Calcium and Vitamin D in combination;   Drug: Placebo
12 Recruiting Vitamin D and Calcium Homeostasis for Prevention of Type 2 Diabetes
Conditions: Glucose Intolerance;   Type 2 Diabetes Mellitus;   Metabolic Syndrome
Interventions: Drug: Vitamin D3 2,000 IU orally once daily;   Drug: Calcium Carbonate 400 mg orally twice daily;   Drug: Vitamin D3-Placebo;   Drug: Calcium-Placebo
13 Recruiting Study of Vitamin D Supplementation to Male HIV Sero-positive Patients
Condition: HIV Seropositive
Interventions: Drug: Rocaltrol;   Drug: Vitamin D;   Drug: Calcium
14 Recruiting Vitamin D, Insulin Resistance, and Cardiovascular Disease
Conditions: Vitamin D Deficiency;   Insulin Resistance;   Type 2 Diabetes Mellitus;   Cardiovascular Disease;   Hypertension
Interventions: Drug: Cholecalciferol and Calcium Carbonate;   Drug: Placebo and Calcium Carbonate
15 Completed Prevention of Hypocalcemia in Patients Undergoing Total Thyroidectomy Plus Central Neck Dissection
Condition: Hypocalcemia
Interventions: Dietary Supplement: Oral calcium plus vitamin D;   Dietary Supplement: Oral calcium alone
16 Recruiting Evaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in Children
Condition: Mineral Absorption
Intervention: Dietary Supplement: Vitamin D
17 Active, not recruiting Pamidronate, Vitamin D, and Calcium for the Bone Disease of Kidney and Heart Transplantation
Condition: Transplant Bone Disease
Interventions: Drug: Pamidronate;   Drug: vitamin D;   Drug: calcium supplement
18 Recruiting Calcium/Vitamin D, Biomarkers,& Colon Polyp Prevention
Condition: Adenomatous Colon Polyps
Intervention: Drug: Calcium and/or Vitamin D
19 Active, not recruiting Vitamin D/Calcium Polyp Prevention Study
Conditions: Colorectal Cancer;   Polyps;   Adenomas
Interventions: Dietary Supplement: Calcium Carbonate;   Dietary Supplement: Vitamin D3;   Dietary Supplement: placebo
20 Recruiting Zoledronate, Vitamin D, and Calcium With or Without Strontium 89 or Samarium 153 in Preventing or Delaying Bone Problems in Patients With Bone Metastases From Prostate Cancer, Lung Cancer, or Breast Cancer
Conditions: Breast Cancer;   Lung Cancer;   Metastatic Cancer;   Pain;   Prostate Cancer
Interventions: Dietary Supplement: calcium carbonate;   Dietary Supplement: calcium citrate;   Dietary Supplement: calcium glucarate;   Dietary Supplement: vitamin D;   Drug: calcium gluconate;   Drug: zoledronic acid;   Radiation: samarium Sm 153 lexidronam pentasodium;   Radiation: strontium chloride Sr 89

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