Hematology: Neutrophil count of > 1500/mm3; Platelet count of >100,000/mm3L; Hemoglobin ≥ 9 g/dL Biochemistry:AST/SGOT and ALT/SGPT ≤ 2.5 x upper limit of normal (ULN) or ≤ 5.0 x ULN if the transaminase elevation is due to disease involvement; Serum bilirubin ≤ 1.5 x ULN; Serum creatinine ≤ 1.5 x ULN or 24-hour creatinine clearance ≥ 50 ml/min; Total serum calcium (corrected for serum albumin) or ionized calcium ≥ LLN; Serum potassium ≥ LLN; Serum sodium ≥ LLN; Serum albumin ≥ LLN or 3g/dl; Patients with any elevated alkaline phosphatase due to bone metastasis can be enrolled