Many people question whether cannabis oil can be an effective treatment option for brain cancer moving forward. Researchers are currently experimenting with different ratios of CBD/THC to examine the therapeutic effects on glioma cells in animals and human patients. In future I would like to see this explored further with additional clinical trials for lower grade tumours and radically excised malignant brain tumours. 
Trials are currently underway by GW Pharmaceuticals on glioblastoma brain tumours. Please watch my video recording from ITV News and let me know what you think. In this video Dr. Wai Liu is being interviewed about his research in this area.
Here is some of the research by Dr. Wai Liu and his colleagues. Dr. Liu is based at the teaching hospital where I had my craniotomy- St. George’s University of London.
http://www.sgul.ac.uk/media/latest-news/study-shows-non-hallucinogenic-cannabinoids-are-effective-anti-cancer-drugs
http://m.mct.aacrjournals.org/content/early/2014/11/12/1535-7163.MCT-14-0402.abstract