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March 06, 2026   
Health Law Weekly

U.S. Court in Massachusetts Allows Regeneron’s Recoupment Counterclaims Against States in FCA Litigation

  • March 06, 2026

Eleven states waived their sovereign immunity by suing Regeneron Pharmaceuticals, Inc. for allegedly causing their Medicaid programs to overpay for the company’s age-related macular degeneration treatment Eylea, a federal court in Massachusetts held March 2. The ruling allows Regeneron to assert counterclaims against the states alleging the company overpaid rebates for Eylea to their Medicaid programs.

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