Abegrin :A substance being studied in the treatment of some types of cancer and other conditions..Abegrin binds to a protein on the surface of blood vessels and may prevent the growth of new blood vessels that tumors need to grow..It may also prevent the spread of cancer..It is a type of antiangiogenesis agent, a type of metastasis inhibitor, and a type of monoclonal antibody..Also called etaracizumab, humanized monoclonal antibody MEDI-522, and MEDI-522..