INSM - Mergers and acquisitions

—Phase 2b BiRCh Study of Brensocatib in CRSsNP Did Not Meet Primary or Secondary Efficacy Endpoints; Safety Consistent with Previous Studies; Insmed Discontinues CRSsNP Program— —Company Acquires Phase 2 Ready Monoclonal Antibody for Potential Respiratory and Immunological & Inflammatory Indications— BRIDGEWATER, N.J., Dec. 17, 2025 /PRNewswire/ -- Insmed Incorporated (NASDAQ:INSM), a people-first global biopharmaceutical company striving to deliver first- and best-in-class therapies to transform the lives of patients facing serious diseases, announced today that the Phase 2b BiRCh study of brensocatib in patients with chronic rhinosinusitis without nasal polyps (CRSsNP) did not meet its pri