PML

PML Found in Ocrevus-Treated Patient Who Had Used Tysabri for 3 Previous Years

A multiple sclerosis (MS) patient treated in Germany withĀ Ocrevus (ocrelizumab)Ā has developed the dreaded brain infection progressive multifocal leukoencephalopathy (PML).Ā But it is not clear whether the recently approvedĀ Genentech/Roche-developed treatmentĀ is the cause. The patient took the last dose of a three-year course of Tysabri (natalizumab)Ā in February. Tysabri is…