Heron Therapeutics loses patent case for CINVANTI drug

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U.S. District Court Issues Decision Regarding CINVANTIĀ® Patents

June 2, 2026 8:12 AM EDT

CARY, N.C., June 02, 2026 (GLOBE NEWSWIRE) -- Heron Therapeutics, Inc. (Nasdaq: HRTX) (Heron or the Company), a commercial-stage biotechnology company, today announced that the U.S. District Court for the District of Delaware issued a decision in the patent litigation between Heron and Azurity Pharmaceuticals, Inc., Azurity Pharmaceuticals India LLP f/k/a Slayback Pharma India LLP, and Slayback Pharma LLC (Azurity), with respect to CINVANTI® (aprepitant) injectable emulsion, holding that the asserted claims of Companys U.S. Patent Nos. 12,115,255 and 12,290,520 are invalid. This decision has no impact on any prior settlement agreement related to... More