Zoledronic Acid in the Prevention of Skeletal-related Events in Hormone Refractory and Hormone-sensitive Prostate Cancer Patients With Bone Metastases

Inclusion Criteria Patients aged ≥18 years Written informed consent Histologically-proven prostate carcinoma ECOG performance status ≤ 2 Life expectancy > 6 months Newly diagnosed (≤ 6 months prior to visit 1) bone metastases evidenced by bone scan or radiograph. Patients on androgen deprivation therapy (medical therapy with LHRH analogues + antiandrogens or surgical castration) or going to start it Patients with partners of childbearing potential should use a barrier method of contraception throughout the study Exclusion Criteria Patients without a history of metastatic disease to the bone Prior treatment with bisphosphonates SREs prior to visit 2 Prior treatment with calcitonin, mithramycin, or gallium nitrate within 2 weeks prior to baseline Corrected (adjusted for serum albumin - see Appendix 5 for the calculation) serum calcium concentration < 8.0 mg/dl (2.00 mmol/l) Serum creatinine concentration > 265 micromol/l (3.0 mg/dl) or a calculated creatinine clearance < 30 ml/minute or serious underlying renal disease or prior renal transplantation History of other malignant neoplasm within previous five years with exception of non-melanomatous skin cancer which has been satisfactorily treated Other known concurrent, severe medical disorder jeopardizing the life of the patient in the immediate future Patients treated with systemic investigational drug(s) and/or device(s) within the past 30 days or topical investigational drugs within the past 7 days Known hypersensitivity to zoledronic acid or other bisphosphonates History of noncompliance to medical regimens and patients who are considered potentially unreliable (for example drug or alchohol abusers) or incapable of giving informed consent as judged by the investigator