I am a bit surprised that the trial used Irinotocan (which has relatively high toxicity) instead of Temodar to partner with Avastin.
I found this link to a patient whose onc prescribed this combo off label:
http://64.233.167.104/search?q=cache...n&ct=clnk&cd=5
I noticed among several trials using Irinotocan in combination with an other drug for brain cancer one trial of irinotocan +Temodar ,for children,taking place at Duke university.