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Home » No New PML Cases Found by Tysabri MS Patient Screening, Says Biogen, Elan
No New PML Cases Found by Tysabri MS Patient Screening, Says Biogen, Elan
August 9, 2005
Biogen Idec and Elan said they may restart clinical trials on their multiple sclerosis (MS) drug Tysabri after a patient safety screening revealed no new cases of a deadly brain disease that had been linked to the once promising product.