Important notes:
1) current institutional THC/cannabinoid treatments tested are mainly intratumorial injections of THC - i.e. not smoked.
2) Brain cancer has a typical prognosis of TWO MONTHS, untreated - and only 10 months with Radiation & drugs. If a 40yo or even 50yo brain cancer warrior should be so lucky as to make it to 57, and die from lung cancer, the church would call it a miracle of the heavens. i.e. Lung cancer is very much the least of your worries if you have a Glioma or grade IV brain tumor.
3) virtual trials, that is, the various things that individuals try to combat brain cancer on their own and outside the institutional setting- ARE showing good signs that smoking pot does stabilize and in one case even shrink GBM tumors. I'd have to show you an MRI from UWMC to prove my point, but it's true.