G-PCNSL-SG1-Trial (whole-brain radiation in the primary therapy of primary CNS lymphomas with high-dose methotrexate) G-PCNSL-SG1-Trial (whole-brain radiation in the primary therapy of primary CNS lymphomas with high-dose methotrexate) Previous Study EORTC-26052-Trial Next Study GLARIUS-Trial (randomized phase 2 study of bevacizumab/irinotecan therapy versus standard therapy in the primary treatment of newly diagnosed MGMT-unmethylated glioblastoma)