- Arm I (0-1 adverse prognostic factors): Patients receive ifosfamide by 24 hour infusion on day 2. Carboplatin is administered on day 2. Etoposide IV is administered once daily on days 1-3. Patients then receive filgrastim (G-CSF) subcutaneously or IV on days 5-12. Patients receive another course of ICE chemotherapy 2-3 weeks after the first course.