ProtAb Ltd is focused on the development of therapeutic agents that modulate cytokine regulation, tipping the balance toward anti-inflammatory signaling pathways in the treatment of autoimmune and inflammatory diseases. The companys first product, Prozumab, is a monoclonal antibody with a novel mechanism of action. It is currently in late-stage preclinical development for the treatment of inflammatory bowel disease (IBD), ulcerative colitis (UC), and rheumatoid arthritis (RA). ProtAb operates as a subsidiary of Hadasit Bio-Holdings Ltd (HBL). HBL is a publicly traded subsidiary of Hadasit Ltd, the technology transfer company of the Hadassah University Hospital in Jerusalem, Israel.