1.	Vitamin D/Calcium Polyp Prevention Study Phase: Phase III, Phase II Type: Prevention Status: Closed Age: 45 to 75 Sponsor: NCI, Other Protocol IDs: 5 R01 CA098286-03, NCT00153816
2.	Phase III Randomized, Double-Blind Study of Nasal Spray Calcitonin vs Placebo to Prevent Osteoporosis in Breast Cancer Patients with Chemotherapy-Induced Ovarian Failure (Summary Last Modified 03/98) Phase: Phase III Type: Supportive care Status: Closed Age: premenopausal Sponsor: Other Protocol IDs: DFCI-92044, NCI-V96-0801
3.	Phase III Randomized Study of Zoledronate in Patients With Bone Metastases Secondary to Prostate Cancer (Summary Last Modified 12/1999) Phase: Phase III Type: Treatment Status: Closed Age: 18 and over Sponsor: Pharmaceutical / Industry Protocol IDs: NOVARTIS-4244603039
4.	Phase III Randomized Study of Zoledronate, Calcium, and Cholecalciferol (Vitamin D) to Prevent Bone Loss in Women With Breast Cancer Receiving Adjuvant Chemotherapy Phase: Phase III Type: Supportive care, Treatment Status: Closed Age: 40 and over Sponsor: NCI Protocol IDs: CALGB-79809, NCI-P01-0184, NCT00022087
5.	Phase III Randomized Study of Calcium and Cholecalciferol With or Without Conjugated Estrogens and With or Without Risedronate for the Prevention of Osteoporosis in Patients With Prostate Cancer Receiving Androgen-Ablation Therapy Phase: Phase III Type: Supportive care Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: NCCTG-N01C8, NCI-P02-0229, N01C8, NCT00043069
6.	Phase III Hormone Therapy with FXM Plus Calcium Carbonate/Vitamin D and Calcitonin for Recurrent Breast Carcinoma with Osseous Metastases Phase: Phase III Type: Supportive care, Treatment Status: Closed Age: postmenopausal Sponsor: Protocol IDs: CBCG-4400
7.	Phase III Randomized Study of Risedronate For Prevention of Bone Loss in Premenopausal Women Undergoing Chemotherapy For Primary Breast Cancer Phase: Phase III Type: Supportive care Status: Completed Age: 18 and over Sponsor: NCI Protocol IDs: NCCTG-N02C1, N02C1, NCT00054418
8.	Phase III Randomized Study of Zoledronate For the Prevention of Bone Loss Due to Long-Term Androgen Deprivation Therapy in Patients With Stage III or IV Prostate Cancer Phase: Phase III Type: Supportive care Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: NU-02U1, NCT00058188
9.	A Severity-Adapted Clinical Trial of Diminished Bone Mineral Density in Acute Lymphoblastic Leukemia Survivors Phase: Phase III Type: Supportive care Status: Closed Age: Not specified Sponsor: Other Protocol IDs: BONEII, NCT00186901
10.	Phase III Randomized Study of Zoledronate in Preventing Osteoporosis and Associated Bone Fractures in Patients With Locally Advanced Nonmetastatic Prostate Cancer Undergoing Radiotherapy and Luteinizing Hormone-Releasing Hormone Agonist Therapy Phase: Phase III Type: Supportive care, Treatment Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: RTOG-0518, 0518, NCT00329797
11.	Phase III Companion Study of Bone Mineral Density in Postmenopausal Women With Primary Breast Cancer Treated on Protocol CAN-NCIC-MA27 Phase: Phase III Type: Natural history/Epidemiology, Supportive care Status: Closed Age: 45 and over Sponsor: NCI Protocol IDs: CAN-NCIC-MA27B, NCIC-MA.27B, SWOG-NCIC-MA27B, NCCTG-NCIC-MA27B, CAN-NCIC-BONE, NCT00354302, MA27B
12.	Phase I/II Study of Therapy with Vit D3 in Patients with Advanced Indolent Lymphomas and Chronic Lymphocytic Leukemia (Summary Last Modified 04/88) Phase: Phase II, Phase I Type: Treatment Status: Closed Age: 18 and over Sponsor: Protocol IDs: IOWA-V87-0191, NCI-V87-0191
13.	Phase II Chemoprevention Study of Vitamin D3 and Calcium for Colorectal Cancer (Summary Last Modified 01/98) Phase: Phase II Type: Prevention Status: Closed Age: Over 18 Sponsor: NCI Protocol IDs: CPMC-IRB-6850, NCI-P97-0109
14.	Phase II Double Blind, Randomized, Placebo Controlled, Chemoprevention Study of Calcium Carbonate in Combination with Vitamin D versus Placebo in Patients with Colorectal Polyp Growth (Summary Last Modified 02/1999) Phase: Phase II Type: Prevention Status: Completed Age: 18 and over Sponsor: NCI Protocol IDs: CPMC-IRB-94087, NCI-P97-0111
15.	Phase II Randomized Pilot Study of Vitamin Therapy with Retinoic Acid and/or Vitamin D3 in the Treatment of Myelodysplastic Disorders, Myeloproliferative Disorders, and Acute Nonlymphocytic Leukemia (Summary Last Modified 05/89) Phase: Phase II Type: Treatment Status: Closed Age: 15 and older Sponsor: Protocol IDs: UCMC-INT-0056, INT-0056
16.	Phase II Pilot Study of Cholecalciferol in Patients With Low- or Intermediate-Risk Myelodysplastic Syndromes Phase: Phase II Type: Treatment Status: Completed Age: Any age Sponsor: NCI Protocol IDs: CCCWFU-29203, CCCWFU-BG03-117, NCT00068276
17.	Calcifidol Therapy in Men With Cancer Phase: Phase II Type: Treatment Status: Completed Age: Not specified Sponsor: Other Protocol IDs: ONCO-09-99S, NCT00018538
18.	Phase II Study of Arsenic Trioxide and Cholecalciferol (Vitamin D) in Patients With Myelodysplastic Syndromes Phase: Phase II Type: Treatment Status: Closed Age: Any age Sponsor: NCI Protocol IDs: CCCWFU-29304, CCCWFU-BG04-452, NCT00104806
19.	Calcium, Vitamin D, and Colon Cancer Risk Biomarkers Phase: Phase II Type: Prevention Status: Closed Age: 30 to 74 Sponsor: NCI, Other Protocol IDs: 0126-2004, 5 R01 CA104637-02, NCT00208793
20.	Hormonal Therapy with Fluoxymesterone plus Salmon Calcitonin for Breast Cancer Metastatic to Bone and Soft Tissue Phase: No phase specified Type: Supportive care, Treatment Status: Closed Age: postmenopausal Sponsor: Protocol IDs: CBCG-4401
21.	Chemotherapy with BCNU/CTX/PRED vs L-PAM/PRED with FXM/Sodium Fluoride/Calcium Gluconate/Vitamin D for Myeloma Phase: No phase specified Type: Supportive care, Treatment Status: Completed Age: no age specified Sponsor: NCI Protocol IDs: EST-4472, SEG-343
22.	Pilot Randomized Study of Cholecalciferol and Calcium Carbonate in Patients With Resected Colon Cancer Phase: No phase specified Type: Biomarker/Laboratory analysis, Treatment Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: RPCI-I-78706, NCT00470353
23.	Study of 24-Hydroxylase (CYP24) Single Nucleotide Polymorphisms and Splicing Variants That Modulate Vitamin D Metabolism and Serum Pharmacokinetics in Patients With Colorectal Cancer Receiving Cholecalciferol Supplementation Phase: No phase specified Type: Biomarker/Laboratory analysis, Supportive care, Treatment Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: RPCI-I-99207, I 99207, NCT00550563