Litigation

BioMarin Pharmaceutical Inc. v. Ascendis Pharma, Inc. et al.

settled/dismissed

337-TA-1447

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Filed
2025-04-02

Patents at issue (2)

Summary

ITC Section 337 investigation titled Certain Drug Products Containing C-Type Natriuretic Peptide Variants, and Components Thereof, brought by BioMarin against Ascendis entities and suppliers regarding TransCon CNP / navepegritide. The asserted patent was U.S. Reissue Patent No. RE48,267; US 8,377,884 was relied on by Ascendis as prior-art Exhibit 32, not asserted. Resolved by a global settlement announced August 30–31, 2026, with the investigation to be dismissed.

Case overview & background

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Plaintiff representatives

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