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Merck’s Investigational Activin Signaling Inhibitor Sotatercept Improved Six-Minute Walk Distance by 40.8 Meters at Week 24 Versus Placebo in Adults with Pulmonary Arterial Hypertension on Background Therapy

Published: 2023-03-06 17:01:00 ET
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Sotatercept demonstrated statistically significant improvements in 8 of 9 secondary measures, including reduction in risk of clinical worsening or death

Results presented today at ACC.23/WCC and published in The New England Journal of Medicine

RAHWAY, N.J.--(BUSINESS WIRE)-- Merck (NYSE: MRK), known as MSD outside of the United States and Canada, today announced full results from the Phase 3 STELLAR trial, which evaluated sotatercept, Merck’s novel investigational activin signaling inhibitor biologic, in combination with stable background therapy for the treatment of adult patients with pulmonary arterial hypertension (PAH) (WHO Group 1). Sotatercept significantly improved exercise capacity, increasing 6-minute walk distance (6MWD) by 40.8 meters (95% CI, 27.5-54.1; p