On June 6, 2022, Amgen announced that the U.S. Food and Drug Administration has approved Amgen’s RIABNI (rituximab-arrx), a biosimilar to Genentech’s RITUXAN®, in combination with methotrexate for treatment of moderate to severely active rheumatoid arthritis (RA). RIABNI has been approved since December 2020 for treatment of adult patients with…