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Biogen Idec and Elan Corporation, plc announced data further supporting the potential clinical utility of an investigational assay that detects anti-JC virus (JCV) antibodies in human plasma or serum.

The detection of anti-JCV antibodies may provide a means to segment, or stratify, multiple sclerosis (MS) patients considering or receiving treatment with TYSABRI® (natalizumab) and assess their risk for developing progressive multifocal leukoencephalopathy (PML), a rare, but serious, brain infection. These data have been presented at the 26th Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) in Gothenburg, Sweden.... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1768

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