Biosimilar competition in the US to Amgen’s Enbrel (etanercept), the $5bn autoimmune diseases treatment, is at risk of not materializing for nine more years after a US Court of Appeals upheld the validity of two patents covering the drug, at the expense of etanercept biosimilar sponsor Sandoz.
Following the decision, Sandoz said it was “evaluating its options,” including a potential appeal to the US Supreme Court. Carol...






