Convection-Enhanced Delivery (CED) of MDNA55 in Adults With Recurrent or Progressive Glioblastoma

The study drug, MDNA55, is a fusion protein comprising a genetically engineered Interleukin-4 (IL-4) linked to a modified version of the Pseudomonas aeruginosa exotoxin A (PE). MDNA55 binds to the IL-4 receptor (IL4R), over-expressed by cancer cells and non-malignant immunosuppressive cells of the tumor microenvironment (TME), and delivers a potent cell-killing agent, PE. The study will be conducted at up to 10 clinical sites following institutional review board approval and completed informed consent. Subjects that meet the study eligibility criteria will undergo surgery associated with study drug administration. MDNA55 will be administered locally by convection-enhanced delivery (CED). Post-treatment follow-up assessment of safety and efficacy will be performed monthly for the first 6 months and bimonthly thereafter for approximately 1 year after study drug administrations. Subjects will continued to be followed for survival and post-study treatment(s) of GB after study completion or withdrawal.