In this podcast hosted by Dr. Sanjay Juneja (the OncDoc on social media), Dr Ely Benaim from SonAlAsense talks about Sonodynamic therapy. This is one of the most promising treatments for not only brain tumors but possibly for any type of cancer. There are clinical trials going on now for recurrent GBM and DIPG. For details go to https://www.sonalasense.com/
There is a different trial going on now with a similiar technology that can also treat patients with multifocal GBM.