My wife was diagnosed with glioblastoma multiforme IV on September 26, 2010, had the tumor successfully resected on September 20, 2010, went through a course or radiation and Temodar and has been receiving bi-weekely Avastin. I have read that Temodar sensitizes the cancer cells to the effects of radiation but wonder why it is being continued on a 5 day on 25 days off schedule after the radiation has completed its course.