One heavily pre-treated patient with relapsed AML with mutated NPM1, DNMT3A, and FLT3-ITD who had previously progressed after chemotherapy, alloSCT, and two FLT3 inhibitors (gilteritinib, crenolanib) demonstrated clinical anti-leukemic activity with a decrease in peripheral blood blasts from 93% to 10% during Cycle 1....Luxeptinib has been well tolerated at the starting dose level of 450mg Q12 hours.