This is an exciting finding.. these researchers have shown that Avastin does make the GBM cells more invasive. (A recent article we posted here said that it doesn't), at least in the test tube. They also show that adding dasatinib would stop that invasiveness. They are now about to try it in human trials. WIll watch this one closely. Best part is that both drugs are available now - Avastin is approved for GBMs and dasatinib is approved for leukemia but can be used off label for anything.