The incorporation of PTKi into the standard of care has caused a paradigm shift in the treatment of CML (PTKi: ABL1 and SRC inhibitors), CLL (PTKi: BTK inhibitors), Ph+ B-ALL (PTKi: ABL1 and SRC inhibitors), and AML with FLT3 mutations (PTKi: FLT3 inhibitors)[29,30]. Here, BTK is linked to chronic myelogenous leukemia, BCR-ABL1 positive.