WESTON, Mass. & DUBLIN--(BUSINESS WIRE)--Biogen Idec (NASDAQ: BIIB) and Elan Corporation, plc (NYSE: ELN) today announced findings from several studies of TYSABRI® (natalizumab) evaluating its long-term safety and efficacy in the treatment of multiple sclerosis (MS) across the course of disease and impact on MS-related symptoms such as fatigue. These data, as well as data relating to the companies’ risk stratification algorithm as a way to help enable individual benefit risk assessment for patients with MS, were accepted for presentation at the 64th Annual Meeting of the American Academy of Neurology (AAN).
