1 - Intra-venous Methylprednisolone: |
• day 1 to day 2 (48 hours) 5 mg/kg/d divided in 2 doses |
• day 3 to day 4 (48 hours) 3 mg/kg/d divided in 2 doses |
• day 4 2 mg/kg/d till disease control and serum levels of ciclosporine A of ~200-300 ng/ml, then taper to full stop previous to stem cell transplantation. |
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2 - Rabbit anti-thymocyte globulins (ATG) |
• Day1 to day 5 (5 days) 10 mg/kg/d IV infusion over 6-12 hours |
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3 - Cyclosporine A |
• begin 48-72 hours after initiating ATG |
• 3 mg/kg/d in continuous or in 1 hour BID infusion |
• aim is to have serum levels within 200-300 ng/ml |
• give oral treatment whenever disease is controlled and maintain until the beginning of the conditioning regimen for stem cell transplantation. |
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4 - Intrathecal Methotrexate (MTX) |
Doses: as per acute lymphoblastic leukemia protocols, |
6 mg |
age 0-1 year |
8 mg |
age 1-2 years |
10 mg |
age 2-3 years |
12 mg |
age >3 years |
Regimen: DO NOT EXCEED 8 IT treatments |
Presence of Central Nervous system involvement on imaging or lumbar tap |
2 LPs/week for 2 weeks |
1 LP/week optimally up to Stem Cell Transplant |
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Absence of Central Nervous Involvement at diagnosis |
1 LP/week optimally up to Stem Cell Transplant |