Age ≥ 65 years, preoperative KPS ≥ 80, post-concomitant CRT KPS ≥ 80, laterality, tumor location, IDH-1 mutant tumors, pMGMT methylated tumors or duration from resection-to-AEF and from CRT-to-AEF were not predictors for survival (Table 3). The gene discussed is IDH1; the disease is neoplasm.