I'm sure each case is different, but my husband has same type cancer, but was able to have surgery, then temodar and radiation, then had regrowth 8 mos. after surgery, went on avastin and irinotecan IV. He had nausea with both - took prochlorper and zofran for that- helped somewhat. Some treatments he had more nausea than others- not sure why, except maybe the buildup of the chemos in his system. Ask about med changes, ativan caused my hubby to act strangely, so then had a change in meds. Good Luck!!!