By multivariate analysis, baseline cytogenetics independently associated with worse survival included Ho-Tr [HR= 18.262 (95% CI= 5.935–56.196); p<0.001], and KMT2A [HR= 3.744 (95% CI= 1.256–11.165); p=0.018]....Our analysis identified baseline KMT2A rearrangements and Ho-Tr as independent predictive of poor outcome in pts with R-R ALL treated with the combination therapy of INO with mini-hyper-CVD with or without blinatumomab.