- COHORT 2 PH-POSITIVE AND PH-LIKE DSMKF PATIENTS ONLY: Newly diagnosed Ph+, newly-diagnosed Ph-like DSMKF, and relapsed/refractory Ph+ patients without prior dasatinib or other 2nd or 3rd generation TKI therapy, must have achieved CR or CRi within 1 cycle of induction with dasatinib/prednisone, or within 2 cycles of re-induction with blinatumomab; relapsed/refractory Ph+ or Ph-like DSMKF patients with prior dasatinib or other 2nd or 3rd generation TKI therapy must have achieved CR or CRi within 2 cycles of re-induction therapy with blinatumomab