MGMT and glioblastoma: In this analysis, we used two balanced multicentric newly diagnosed MGMT promoter methylated glioblastoma cohorts uniformly treated under real‐life conditions with maximum‐safe surgical resection, radiotherapy, and either the combination of CCNU and temozolomide according to the CeTeG/NOA‐09 trial [3] or single‐drug temozolomide according to the EORTC‐NCIC‐26981‐22981/CE.3 trial [21].