Health knowledge made personal
Join this community!
› Share page:
Go
Search posts:

FDA News: The FDA says there have been 13 confirmed cases of progressive multifocal leukoencephalopathy (PML) in patients taking

Posted Nov 17 2009 10:20pm
Sept. 21, 2009| Vol. 6 No. 183


The FDA says there have been 13 confirmed cases of progressive multifocal leukoencephalopathy (PML) in patients taking Biogen Idec and Elan Pharmaceuticals’ Tysabri for multiple sclerosis (MS) in the past three years.

Biogen and Elan voluntarily suspended the marketing of Tysabri (natalizumab) in 2005 because of two PML brain infections in patients taking the drug.

The drug was reintroduced in July 2006 under a restricted distribution program, and from that point until Sept. 8, 13 PML cases, four of them in the U.S., were confirmed in patients taking the drug as monotherapy for MS, the FDA says in a statement.
============================================
Post a comment
Write a comment:

Related Searches