RE-INDUCTION (WEEKS 10-12): Patients receive vincristine sulfate IV over 1 minute on days 1, 8, and 15; daunorubicin hydrochloride IV over 30 minutes on days 1 and 2; cyclophosphamide IV over 30 minutes every 12 hours on days 3 and 4; pegaspargase or asparaginase IM on day 4; dexamethasone IV or PO twice daily (BID) on days 1-7 and 15-21; triple IT chemotherapy comprising methotrexate, cytarabine, and hydrocortisone on days 1 and 15; and filgrastim IV or SC beginning on day 5 and continuing until blood counts recover.