We evaluated the efficacy and safety of blinatumomab and ponatinib in pts with R/R Ph+ ALL or CML-LBP….Among the 14 pts with R/R Ph+ ALL, 1 was in CR but with detectable BCR::ABL1 at enrollment. The rate of CR/CRiwas 92% (12 of 13 pts), with CR in 11 (85%) pts....Our results show that the combination of blinatumomab and ponatinib represent an effective chemotherapy-free regimen for pts with R/R Ph+ ALL and CML-LBP, with a favorable safety profile.