Glioblastoma Treatment With Irradiation and Olaptesed Pegol (NOX-A12) in MGMT Unmethylated Patients

The purpose of this study is to obtain first, exploratory information on the safety and efficacy of (i) olaptesed pegol in combination with radiation therapy in patients with newly diagnosed glioblastoma of unmethylated MGMT promoter status either not amenable to resection (biopsy only) or after incomplete tumor resection, and (ii) olaptesed pegol in combination with radiation therapy and bevacizumab in patients with newly diagnosed glioblastoma of unmethylated MGMT promoter status either not amenable to resection (biopsy only) or after incomplete or complete tumor resection. Further arms are included (i) to establish safety for the combination of olaptesed pegol at three different doses in addition to radiotherapy and bevacizumab, (ii) to explore the benefit of combining olaptesed pegol at different dose levels with bevacizumab in order to define the doses to move forward into a subsequent randomized dose-finding study, (iii) to explore the contribution of the therapy components olaptesed pegol and bevacizumab to patient benefit and (iv) to put the clinical outcome of these treatment regimens into perspective with the standard of care treatment with temozolomide and radiotherapy.