Disclaimer: Lymphoma News Today is strictly a news and information website about the disease. It does not provide medical advice, diagnosis or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.. Besponsa (inotuzumab ozogamicin, previously CMC-544) is an approved therapy developed by Pfizer to treat adults with B-cell precursor acute lymphoblastic leukemia (ALL) whose disease has relapsed or who did not respond to standard therapy.. The standard treatment for diffuse large B cell lymphoma (DLBCL) is a combination of chemotherapy drugs and a monoclonal antibody called rituximab..