High Dose Sequential Therapy and Autologous Stem Cell Rescue for Multiple Myeloma

Patient will receive Cyclophosphamide(4 g/m2 over 2 hours) and blood progenitor cell collection (day -49). G-CSF (10 mcg/kg/d) will be administered SQ. A six hour leukapheresis will be performed,cells will undergo CD34+ cell selection, patients will receive high dose VP-16 (Etopophos)(day -28)(2 g/m2 over 4 hours)and G-CSF (5 mcg/kg/d) will be administered SQ two days following VP-16. The an IV of sulfamethoxazole-trimethoprim 1 ampule BID for 5 days (Day -5). BCNU 500 mg/m2 IV over 2 hours (Day -4). Melphalan (Day -2) will be administered IV (200 mg/m2 over 20 minutes). The frozen peripheral blood mononuclear cells will be transfused on Day 0. Day +1: G-CSF 5 mcg/kg/d SQ for 3 days.