Michigan Case Against Prime, Express Scripts May Spark New Line of Anti-PBM Suits
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May 08, 2025
Since 2019, Prime Therapeutics has tapped The Cigna Group’s Express Scripts to handle contracting negotiations with retail pharmacies, utilizing the larger PBM’s market power to get better deals for Blue Cross Blue Shield-owned Prime. But in a new lawsuit — which could be the first of many — Michigan’s attorney general argues that the Prime/Express Scripts arrangement is anticompetitive.
Prime argues that its network lease agreement is both legal and helps it manage costs for clients and patients. And Express Scripts says it will “vigorously defend” itself against the allegations.
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