FDA accepts Biogen aBLA for biosimilar tocilizumab (Genentech’s Actemra®)

Biogen announced that the FDA accepted its aBLA for BIIB800 (biosimilar tocilizumab) referencing Genentech’s Actemra®.  This follows the EMA acceptance of Biogen’s MAA for BIIB800 in September 2022. Tocilizumab is an anti-interleukin-6 receptor monoclonal antibody which is indicated for various health conditions including moderate to severe RA in adults as well as juvenile idiopathic polyarthritis and systemic juvenile idiopathic arthritis.