- Regimen E: Myeloablative therapy and autologous PBSC transplantation begin 16-40 days after the administration of etoposide. Patients receive mitoxantrone IV over 1 hour every 2 hours for 3 doses on day 2 and melphalan IV over 30 minutes on day 5. PBSC are reinfused on day 6 beginning at least 24 hours after the administration of melphalan. Patients receive G-CSF SC or by continuous infusion beginning on day 7.