Avastin keeps tumors from growing but CPT or Temodar or other chemotherapy drugs are supposed to repress new ones from starting up. Based on the troubles I've heard of from blood clots, if someone's known to be at risk, I wouldn't want them on Avastin. Yes, it's all scary. No guarantees.
Hope and comfort to you ~
Sarah
mom of andy 27 dx gbm/pnet 1/09