Key Takeaways MRK gets positive CHMP opinion for expanded Winrevair use in adult PAH patients with WHO FC II, III and IV.The recommendation is based on phase III ZENITH data showing a 76% reduction in morbidity and mortality risk.The opinion will be reviewed by the European Commission, with a final decision expected in Q1 2026.Merck (MRK) announced that the European Medicines Agency’s Committee for Medicinal Products for Human Use (“CHMP”) has rendered a positive opinion recommending approval of an expanded ...