Merck & Co. Inc. announced positive topline results from the Phase 2 CADENCE study evaluating WINREVAIR™ (sotatercept-csrk) in adults with combined post- and precapillary pulmonary hypertension (CpcPH) due to heart failure with preserved ejection fraction (HFpEF). The study met its primary endpoint, demonstrating a statistically significant and clinically meaningful reduction in pulmonary vascular resistance (PVR) at 24 weeks compared to placebo. The safety profile observed was generally consistent with the known safety profile for WINREVAIR. Merck plans to present the results at a future scientific congress and intends to proceed with Phase 3 development in this patient population. WINREVAIR is currently approved in over 50 countries for the treatment of adults with pulmonary arterial hypertension (PAH).