Oleander extract crosses the blood brain barrier and some of it's earliest successes were against brain cancers. Probably the worst thing one can do is have radiation or chemo. Radiation can cause horrible damage to the brain affecting speech, motor skills and more. I think Sutherlandia OPC (which adds 20% South Africa Cancer Bush to 80% oleander extract) is a good option (and I like the suggestions of the other poster too). Other forms of oleander you could opt for are the patented medicine Anvizel, available from Honduras (which is being used by an increasing number of progressive mainstream oncologists as a CAM treatment), the home remedy version called "oleander soup" which you make yourself at home, and the new Cancema III tonic, which uses oleander as a primary ingrediet and also uses graviola and chaparra) from Greg Caton's new base of operations in Uraguay.
I will add that I do not think anyone should depend on any single supplement or diet or any other element alone. Cancer is literally a fight for life and one should bring as much to bear against it as is possible and compatible.
My suggested protocol is posted more than once here at CureZone and is also available at:
The important considerations, I believe, are that first of all brain cancer is not to be trifled with and often is a very aggressive and hard to treat cancer that should be acted upon quickly and secondly that neither chemo nor radiation will cure brain cancer - at best they may buy a little bit of time at a terrible price.