Download the podcast via Apple Podcasts, Google Play or Spotify. Glioblastoma (GBM) is the most complex and aggressive type of cancer that originates in the brain. There hasn’t been a new FDA approved treatment brought to market in 15 years, and survival rates for GBM have not changed in 30 years – 90% of those diagnosed succumbing to the disease within five years. For the 1.4 million people worldwide living with malignant brain tumors, and an estimated 256,000 that will be diagnosed by the end of the year, this is a grim reality.