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Home » Tysabri Patient Screening Finds No PML Cases, Says Biogen, Elan
Tysabri Patient Screening Finds No PML Cases, Says Biogen, Elan
August 12, 2005
Elan and Biogen Idec 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.