- Arm II (Rapid COJEC): Patients receive vincristine IV and carboplatin IV over 1 hour on day 1 and etoposide IV over 4 hours on days 1 and 2 (regimen 1). Ten days later, patients receive vincristine IV followed by cisplatin IV continuously over 24 hours on day 1 (regimen 2). Ten days later, patients receive vincristine IV on day 1 and etoposide IV over 4 hours and cyclophosphamide IV on days 1 and 2 (regimen 3). Treatment continues for 10 weeks (with a 10-day interval between regimens in this order: regimen 2, regimen 1, regimen 2, regimen 3, and regimen 2) in the absence of disease progression or unacceptable toxicity.