Jean wrote:That's not very surprising to me. Many treatments may be linked to liver injury. Even high-dose paracetamol may cause liver damage ! And the interferons too. That's why people treated with Avonex, Betaseron or Rebiff have to make blood draws regularly to check liver function.
(msnbc article)...the liver risk has been debated since at least last year, including at an FDA advisory panel.
In fact, I think the liver problem was already suspected, but with a 1/1000 ratio, it was probably not seen during trials (1/1000, that's difficult to see, even for a phase III trial)
This announcement is probably the "official" warning of Biogen. By doing this, they protect themselves against claims for "hidden side effects" which could be issued.
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