- Regimen A: Patients receive consolidation chemotherapy comprising etoposide IV over 1 hour on days 1-3, ifosfamide IV continuously over 24 hours on day 2, carboplatin IV on day 2, and G-CSF SC once daily on days 5-12 or PEG-filgrastim once at least 24 hours after infusion. Treatment repeats every 14 days for a total of 3 courses in the absence of disease progression or unacceptable toxicity.