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.
Ipi/nivo/relatlimab and then a peptide vaccine that they haven't written up yet.
https://clinicaltrials.gov/study/NCT06816927
It will be interesting to follow its progress.
https://www.smh.com.au/lifestyle/health-and-wellness/former-...