Progressive Multifocal Leukoencephalopathy

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  • Progressive Multifocal Leukoencephalopathy trends
  • Biogen, Elan shares plummet on new Tysabri review

    Oct 23rd, 2009 - Reuters

    * European regulators to review risk, benefit of Tysabri * Review follows reports of 23 cases of PML worldwide * Shares of Biogen down 5.5 pct; Elan shares fall 20 pct (Updates share prices) BOSTON...

  • Europe Take Closer Look at Tysabri Dangers

    Oct 23rd, 2009 - Wall Street Journal

    A European panel has started a review of controversial multiple sclerosis drug Tysabri, sold by Biogen Idec Inc. and Elan Plc, citing a much higher rate of a rare brain infection than previously disclosed. In a statement...

  • FDA confirms 3 new infections linked to Tysabri

    Sep 22nd, 2009 - Boston

    NEW YORK—The Food and Drug Administration says it confirmed three new cases of a potentially lethal brain inflammation linked to the multiple sclerosis drug Tysabri.

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