
Biogen Idec Inc. disclosed three more cases of a rare brain infection in multiple sclerosis patients on Tysabri, which it sells with Elan Corp., bringing the total number of cases to 58 as of July 2.
The Cambridge, Mass., biotech company reported an additional death among patients that have developed progressive multifocal leukoencephalopathy, or PML, bringing the total to 12.
Tysabri is considered a highly effective therapy for MS, and its growth is important to the future of both Elan and Biogen. But its sales have been slower than originally hoped due to concerns about the risk of PML that led to its temporary withdrawal beginning in 2005. The infection re-emerged in mid-2008, and Biogen provides regular updates about the number cases....Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1905