Sunday, May 11

Biogen discloses four more PML cases

[Posted by Shirley Richardson]

Biogen Idec officials say that four more patients have contracted a rare brain infection associated with the company’s blockbuster multiple sclerosis drug, Tysabri.

This brings the total number of cases of the infection, known as PML, to 35 since July report in The Journal of New England Technology

Labels: Tysabri, Biogen