The earlier use of natalizumab!

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Biogen-Idec and Elan have announced the eminent start of a clinical trial, called Surpass, to assess the effectiveness of switching to natalizumab (Tysabri) in patients that have experienced disease breakthrough with either glatiramer acetate or interferon beta.

I interpret this as a show of confidence by the companies that we can overcome the PML problem; there are now 31 confirmed cases of post-marketing PML in patients with MS receiving natalizumab.

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Prof G

Professor of Neurology, Barts & The London. MS & Preventive Neurology thinker, blogger, runner, vegetable gardener, husband, father, cook and wine & food lover.

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