LAL-AR-N-2005:Study Treatment for Children High Risk Acute Lymphoblastic Leukemia

Induction: 60 mg/m2/day, oral or i.v x 21 days and 30 mg/m2/day oral or iv x 7 days Reinduction-Intensification Treatment: 60 mg/m2/d x 14 days and 30 mg/m2/day oral x 7 days

Induction: 30 mg/m2, i.v, days 1, 8, 15, 22 Consolidation (Bloc II)30 mg/m2, i.v, day 1

Induction: 1,5 mg/m2 iv, days 1, 8, 15, 22 Consolidation (Bloc I):1,5 mg/m2 iv, days 1, 8 Consolidation (Bloc II):1,5 mg/m2 iv, days 1, 8 Reinduction: 1,5 mg/m2 iv, days 1, 8 Maintenance:1,5 mg/m2 iv, day 22

Induction: 10.000 U/m2 im or iv, days 9,11,13,16,18,20,23,25,27 Consolidation (Bloc II): 20.000 U/m2 im or iv, day 7 Maintenance: 20.000 U/m2 im or iv, day 22

Induction: 500 mg/m2 iv, days 1, 2, 29 Consolidation (Bloc I): 500 mg/m2 iv, day 8 Reinduction:500 mg/m2 iv, day 15

Consolidation (Bloc I): 5 g/m2 24 hours infusion Consolidation (Bloc II): 5 g/m2 24 hours infusion Reinduction: 3 g/m2 24 hours infusion Maintenance: 20 mg/m2/d, IM/week x 3 (1, 7, 14)

Consolidation (Bloc I): 1 g/m2/12 h iv, days 5, 6 Consolidation (Bloc II): 1 g/m2/12 h iv, days 5, 6 Reinduction: 1 g/m2/12 h iv, days 43, 44