The patient was subsequently treated on a Phase 1 trial of flotetuzumab (MGD006/S80880) (FLZ)....prior to FLZ, BM blasts demonstrated clonal evolution with a complex karyotype (92,XXXX, t(14;21)(q22;q22))....patient received a total of 3 cycles (28 days/cycle) of FLZ. After one FLZ cycle, the patient achieved a (complete response) CR....after 2 additional cycles of FLZ consolidation, the CR was maintained...