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Tysabri PML Update

Oct 29 2009

A brain viral infection called PML (progressive multifocal leukencephalopathy) has now been reported in 24 people with MS since being available again in 2006.   Since September 30, 2009,  approximately 46, 200 patients are currently being treated with Tysabri including about 13,400 on treatment for more than 2 years.  Although no known cure exists for PML,  plasmapheresis (a procedure like kidney dialysis)  can be used to help remove the Tysabri antibody from one’s circulation.  Four of the 24 patients have died from the infection.

BY: Barry Singer, MD DATE: October 29, 2009 TOPIC: MS Research News