%0 Randomized Controlled Trial %T Cancer stem cell assay-guided chemotherapy improves survival of patients with recurrent glioblastoma in a randomized trial. %A Ranjan T %A Sengupta S %A Glantz MJ %A Green RM %A Yu A %A Aregawi D %A Chaudhary R %A Chen R %A Zuccarello M %A Lu-Emerson C %A Moulding HD %A Belman N %A Glass J %A Mammoser A %A Anderson M %A Valluri J %A Marko N %A Schroeder J %A Jubelirer S %A Chow F %A Claudio PP %A Alberico AM %A Lirette ST %A Denning KL %A Howard CM %J Cell Rep Med %V 4 %N 5 %D 2023 05 16 %M 37137304 %F 16.988 %R 10.1016/j.xcrm.2023.101025 %X Therapy-resistant cancer stem cells (CSCs) contribute to the poor clinical outcomes of patients with recurrent glioblastoma (rGBM) who fail standard of care (SOC) therapy. ChemoID is a clinically validated assay for identifying CSC-targeted cytotoxic therapies in solid tumors. In a randomized clinical trial (NCT03632135), the ChemoID assay, a personalized approach for selecting the most effective treatment from FDA-approved chemotherapies, improves the survival of patients with rGBM (2016 WHO classification) over physician-chosen chemotherapy. In the ChemoID assay-guided group, median survival is 12.5 months (95% confidence interval [CI], 10.2-14.7) compared with 9 months (95% CI, 4.2-13.8) in the physician-choice group (p = 0.010) as per interim efficacy analysis. The ChemoID assay-guided group has a significantly lower risk of death (hazard ratio [HR] = 0.44; 95% CI, 0.24-0.81; p = 0.008). Results of this study offer a promising way to provide more affordable treatment for patients with rGBM in lower socioeconomic groups in the US and around the world.