- Evidence of ≥ Common Toxicity Criteria for Adverse Effects (CTCAE) v.3 grade 2 CNS hemorrhage (CNS hemorrhage when medical intervention indicated), but grade 1 CNS hemorrhage (asymptomatic radiographic findings on the baseline brain CT or MRI only) is allowed. Punctate hemorrhage or the presence of hemosiderin is not considered a Grade 1 event for the purpose of this study. )