To address Antibody-Dependent Cellular Phagocytosis (ADCP) J774A.1 macrophages in co-culture with MYC/Bcl2 Double-hit-lymphoma (hMB) cells or primary chronic lymphocytic leukemia (CLL) patient cell....we used the hMB humanized mouse model of Double-Hit B cell lymphoma and could observe prolonged survival of combination treatment of alemtuzumab and ibrutinib as compared to alemtuzumab monotherapy.