Biotechnology The European Commission (EC) has approved Enspryng (satralizumab), from Swiss pharma giant Roche, for the treatment of adults and adolescents from 12 years of age living with anti-aquaporin-4 antibody (AQP4-IgG) seropositive neuromyelitis optica spectrum disorder (NMOSD), as a monotherapy or in combination with immunosuppressive therapy (IST). 28 June 2021