- In December 2020, Amgen had received United States Food and Drug Administration (USFDA) approval of RIABNI (rituximab-arrx). RIABNI (rituximab-arrx) is a biosimilar to rituximab which is used for the treatment of adult patients suffering from non-Hodgkin’s lymphoma, chronic lymphocytic leukemia, Wegener's granulomatosis and microscopic polyangiitis (MPA)
