The FDA has accepted Mustang Bio Inc.’s IND application of MB-109 for the treatment of recurrent glioblastoma (GBM) and high-grade astrocytoma. MB-109 is a treatment regimen combining MB-101 (City of Hope-developed IL13Rα2‐targeted CAR T-cell therapy) and MB-108 (Nationwide Children’s Hospital-developed HSV-1 oncolytic virus).