Status of MS’ers with PML as of 1st December, 2011:
- 193 PML cases, of which 112 have been in the European Economic Area (EEA), 71 in the US and 10 in rest of world (ROW).
- 39 of the 193 (20%) patients with PML have died.
MS patients who developed PML and in whom serum samples were available 6-187 months prior to the onset of PML, all 45 patients had anti-JCV antibodies detected.
Samples were available from 73 patients at the time of PML diagnosis and all 73 tested positive for anti-JCV antibodies.
CoI: Data in this post has been supplied by Biogen-Idec as part of their “monthly natalizumab safety update and PML risk stratification programme“.