@positibilitarian1, thanks for bringing this early trial results to my attention. Here's more info for anyone else interested:
- Preliminary Clinical Trial Results Show ‘Dramatic and Rapid’ Regression of Glioblastoma after Next Generation CAR-T Therapy https://www.massgeneral.org/news/press-release/clinical-trial-results-show-dramatic-regression-of-glioblastoma-after-next-generation-car-t-therapy

It's early days and shows data for 3 patients only, but hopeful.

Here's further information from Mayo Clinic advances as well:
New approaches to immunotherapy for glioblastoma https://www.mayoclinic.org/medical-professionals/neurology-neurosurgery/news/new-approaches-to-immunotherapy-for-glioblastoma/mac-20488153

@positibilitarian1, have you inquired if your daughter may be eligible for a current or future clinical trial?