Table 2.

Age-adjusted dosages for intrathecal therapy

<1 y1 y2 y3-8 y>9 y
HC (mg) 7.5 10 12 15  
MTX (mg) 7.5 10 12 15  
ARA-C (mg) 15 16 20 24 30 
<1 y1 y2 y3-8 y>9 y
HC (mg) 7.5 10 12 15  
MTX (mg) 7.5 10 12 15  
ARA-C (mg) 15 16 20 24 30 

HC = hydrocortisone; MTX = methotrexate; ARA-C = cytosine arabinoside; CNS = central nervous system.

CNS disease at diagnosis: weekly IT therapy for a total of 5 doses.