FDA Grants Orphan Drug Status To Acceleron's PAH Candidate

 | Sep 10, 2019 06:00AM ET

Acceleron Pharma Inc. (NASDAQ:XLRN) announced that the FDA has granted an orphan drug designation to its investigational candidate sotatercept for the treatment of patients with pulmonary arterial hypertension (PAH), a rare disease of highly unmet medical need.

Notably, the orphan drug designation is granted to drugs capable of treating rare diseases that affect less than 200,000 people in the United States. This status also makes the company entitled to certain other benefits including tax credits and grant funding related to clinical study expenses. The tag also makes sotatercept eligible for seven years of marketing exclusivity in the United States upon potential approval from the regulatory body.

Sotatercept is currently being evaluated in two phase II studies for treating PAH. In June, Acceleron completed enrolling patients in the PULSAR study and plans to report top-line data from the same in the first quarter of 2020. Also, the company is currently recruiting subjects in the SPECTRA exploratory study to have a better understanding of sotatercept's potential impact on PAH. Preliminary results from this study are expected in 2020.

Shares of Acceleron were up almost 2.2% following this news on Monday. In fact, so far this year, the stock has gained 4.5% against the industry’s decline of 2.5%.