PRIOR CONCURRENT THERAPY: Biologic therapy: Concurrent biologic response modifier therapies allowed Concurrent marketed cytokine or colony stimulating factor therapies allowed Chemotherapy: Concurrent marketed chemotherapy agents allowed (including open label cooperative trials or for supportive care) Endocrine therapy: Concurrent hormonal agents and steroid therapies allowed Concurrent corticosteroid therapy allowed (for chemotherapy induced nausea/vomiting or spinal compression) Radiotherapy: Concurrent radiotherapy to treat extraskeletal and/or skeletal tumor sites allowed Surgery: Prior surgery to treat or prevent pathological fracture or spinal cord compression allowed Other: At least 30 days since other prior investigational drugs No concurrent bisphosphonate agent At least 30 days since prior bisphosphonate agent (single exposure allowed within prior 12 months)