This might be related with the case of Richard Scolyer, the Australian pathologist diagnosed with Glioblastoma. He was receiving some kind of experimental treatment for it.
I believe he got just got either Ipilimumab and Nivolumab as a combo therapy or Pembrolizumab. He's a researcher who focuses on neo-adjuvant (use therapy before resection) therapy in melanomas. It was a good gamble to try the same paradigm in Glioblastomas