EmblemHealth, Inc. v. Alexion Pharmaceuticals, Inc. et al

  1. April 09, 2026

    Nonprofit Insurer Wants To Seek AstraZeneca Claims Revival

    EmblemHealth asked a Massachusetts federal judge to let it seek First Circuit intervention against a decision that cut in half its proposed class action accusing AstraZeneca unit Alexion of using sham patents to protect blood disorder treatment Soliris from biosimilar rivals.

  2. December 19, 2025

    AstraZeneca Unit Ducks Patent Fraud, Not Sham Suit Claims

    A Massachusetts federal judge spared AstraZeneca unit Alexion on Friday from half of a nonprofit insurer's proposed class action, finding the plaintiff too far removed from anticompetitive patent fraud that allegedly propped up blood disorder treatment Soliris, while preserving accusations that Alexion brought sham infringement allegations against would-be rivals.

  3. April 17, 2025

    AstraZeneca Unit Hit With Antitrust Suit Over Soliris

    Not-for-profit insurance company EmblemHealth Inc. has hit an AstraZeneca unit with a proposed class action claiming the subsidiary defrauded the U.S. Patent and Trademark Office to delay generic competition of its blood disorder product Soliris.