Patient characteristics and outcome. (A) ABL-class fusion gene in the whole cohort (N = 24). On the circos plot, the names of ABL-class genes are in blue; partner genes are in red. (B) MRD response in patients treated frontline at different time points (N = 19, 1 patient not evaluated after TKI exposure). EFS (C) and OS (D) from diagnosis in patients exposed frontline to TKI (N = 19).