23. August 2013 um 08:33
As of Aug 6, 2013, there have been 395 confirmed cases of PML worldwide (131) in the US).
92 of 395 (23%) of the patients with PML have died; the patients who
are alive have varying levels of disability, ranging from severe to
moderate to mild. PML usually leads to death or severe disability.
As of June 30, 2013, approximately 118,100 patients received natalizumab in post-marketing setting worldwide.