PETHEMA LAL-RI/96: Treatment for Patients With Standard Risk Acute Lymphoblastic Leukemia

Overview

The objective of current protocol is try improve the results of chemotherapy treatment in patients with ALL wich is not indicated the peripheral stem cell transplant in first remission, with an intensive consolidation follow by re-inductions.

Induction therapy: Patients with standard risk receive vincristine (1,5 mg/m2)IV on days 1, 8, 15 and 22;daunorubicin (30 mg/m2)IV on days 1, 8, 15 and 22; oral or IV prednisone 60 mg/m2/day, days 1 to 27 and 30 mg/m2/day, days 28 to 35;asparaginase 10.000 UI/m2 IM or IV, days 10 to 12, 17 to 19 and 24 to 26;cyclophosphamide (500 mg/m2)IV days 1, 2 and 29; methotrexate, cytosine arabinoside and hydrocortisone, days 1 to 22. Patients older than 55 years are not treated with asparaginase and cyclophosphamide. Consolidation therapy (1): Standard risk: Mercaptopurine 50 mg/m2, PO, days 1 to 7, 28-35 and 56-63; methotrexate (3g/m2)IV/24 hours, day 1, 28 and 56; VM-26 (150 mg/m2)/12 hours, IV, days 14 and 42; ARA-C (500 mg/m2)/12 hours, IV days 14-15 and 42-43; intrathecally treatment, days 1, 28 and 56. Patients over 50 years: Mercaptopurine (50 mg/m2), PO, days 1 to 7, 28-35 and 56-63;methotrexate (1,5 g/m2) IV/24 hours, day 1, 28 and 56; VM-26 (150 mg/m2)/12 hours, IV days 14 and 42; ARA-C (500 mg/m2)/12 hours, IV days 14-15 and 42-43; intrathecally treatment, days 1, 28 and 56. Consolidation therapy (2)/Reinduction: one cycle similar to induction. It starts one week after last dose of mercaptopurine.Dexamethasone 10 mg/m2/day,PO or IV, days 1-14 and 5 mg/m2/day, PO or IV days 15-21; VCR: 1,5 mg/m2 IV, days 1, 8 and 15; Daunorubicin 30 mg/m2 IV, days 1, 2, 8 and 9; cyclophosphamide 600 mg/m2/day IV, days 1 and 15; Asparaginase: 10.000 UI/m2 IM or IV, days 1-3 and 15-17;intrathecally treatment days 1 and 15 Maintenance therapy 1:administration of continuous chemotherapy (mercaptopurine and methotrexate) and reinductions until one year from diagnosis. * Continuous chemotherapy: * MP 50 mg/m2/day PO * MTX 20 mg/m2/week IM * Reinductions * VCR: 1,5 mg/m2 IV, day 1. * PDN: 60 mg/m2/day, IV or PO days 1 to 7 * L-ASA: 20.000 UI/m2, IM or IV day 1. * Intrathecally day 1 Seven cycles, weeks 25, 29, 33, 37, 41, 45 and 49. Maintenance therapy 2:administration of continuous chemotherapy (mercaptopurine and methotrexate) while second year from diagnosis (weeks 53 to 104). * MP 50 mg/m2/day, PO * MTX 20 mg/m2/week, IM.

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