If approved, sotatercept would be the first in its class, bringing a novel approach to address a rare and progressive disease of the pulmonary arteries

Merck_office_Upper_Gwynedd_Township_Montgomery_County

The offices of Merck in Montgomery County, Pennsylvania, US. (Credit: Montgomery County Planning Commission from Wikimedia Commons)

Merck, known as MSD outside of the United States and Canada, announced today that the U.S. Food and Drug Administration (FDA) has accepted for priority review a new Biologics License Application (BLA) for sotatercept, Merck’s novel investigational activin signaling inhibitor, for the treatment of adult patients with pulmonary arterial hypertension (PAH) (WHO Group 1). The FDA has set a Prescription Drug User Fee Act (PDUFA), or target action, date of March 26, 2024.

PAH is a rare, progressive and ultimately life-threatening disease characterized by the narrowing of blood vessels in the lungs, causing significant strain on the heart. The application for sotatercept is based on data from the Phase 3 STELLAR trial, in which sotatercept on top of background therapy demonstrated a statistically significant and clinically meaningful improvement in 6-minute walk distance (6MWD) and eight of nine secondary outcome measures. These results were presented at ACC.23/WCC and published in The New England Journal of Medicine.

“Despite advances in the treatment of PAH over the last two decades, there is still a significant need to improve outcomes for patients,” said Dr. Joerg Koglin, senior vice president, global clinical development, Merck Research Laboratories. “The FDA’s acceptance of this application is an exciting milestone in our journey to bring this novel activin signaling inhibitor to patients. Based on the profound improvements across primary and secondary outcome measures in the Phase 3 STELLAR trial, we believe sotatercept has the potential to transform the treatment of patients with PAH. We look forward to working closely with the FDA to bring sotatercept to patients in need.”

Source: Company Press Release