CORRECTION: MULTIPLE SCLEROSIS DRUG (TYSABRI) MAY HAVE BEEN RESPONSIBLE FOR FOURTH CASE OF RARE BRAIN DISEASE
Jun 4, 2005 | www.Newsinferno.com Yesterday, we reported that the FDA had been informed by Biogen Idec Inc. that a fourth person may have died from a rare and often fatal brain disease known as progressive multifocal leukoencephalopathy (PML) after short-term treatment with its embattled multiple sclerosis drug Tysabri. Actually, that person remains alive and is currently being treated for the disease.