CAMBRIDGE, Mass. & DUBLIN--(BUSINESS WIRE)--Biogen Idec (NASDAQ: BIIB) and Elan Corporation, plc (NYSE: ELN) today announced new data on the global utilization and safety of TYSABRI® (natalizumab), citing that as of the end of September 2007 approximately 17,000 patients are on commercial and clinical therapy worldwide, and that the safety data to date continue to support a favorable benefit-risk profile for TYSABRI. These data will be presented as part of the companies’ symposia being held on Friday, October 12, 2007 at 6 p.m. CEST at the 23rd Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) in Prague, Czech Republic.
