Quote:
Originally Posted by komokazi
6 of these 8 cases all started Tysabri from Sep 06 through Feb 07 (relatively small window with a small number of Ex-US patients).
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As comparison, 6 out of about 1100 Ex-US patients who started Tysabri during the Sep 06 to Feb 07 period have developed PML. 0 out of the 3300 patients who started Tysabrio during this period developed PML. Seems to be a problem not just in Europe but maybe with this 1100 patient group.