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       #Post#: 594--------------------------------------------------
       514 PML cases in MS patients taking Tysabri as of 12/3/14
       By: agate Date: December 21, 2014, 1:23 pm
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       The total number of PML cases in persons using Tysabri for MS
       and Crohn's disease was 517 as of December 3, 2014. Three of the
       517 cases have been persons with Crohn's disease.
       This means an incidence of PML of 3.78 per 1,000, and 23% have
       died. 77% are alive with varying levels of disability.
       As of 9/30/14, a total of 132,600 patients worldwide have
       received Tysabri in a post-marketing setting.
       This information is from the chefarztfrau Website.
       Since the number of people on Tysabri has been steadily rising
       and the number of PML cases has shown a slight decline recently,
       it seems likely that the measures that have been taken towards
       better early detection have had some effect.
       The total number of PML cases recorded in 2011 was 103, in
       2012--119, in 2013--106, and in 2014--94.
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