Patients with newly diagnosed MGMT-unmethylated glioblastoma were randomized to receive...standard radiochemotherapy followed by adjuvant abemaciclib (150-200 mg orally BID)....PFS was significantly longer (HR 0.67; p = 0.03, logrank test) with abemaciclib (median 6.54 months) compared to the control arm (median 5.88 months). For patients with activation of the CDK4 pathway the PFS HR was 0.64 (p-value = 0.04).