The FDA has approved sotatercept-csrk (Winrevair – Merck), a first-in-class activin signaling inhibitor, to increase exercise capacity, improve WHO functional class, and reduce the risk of clinical worsening events in adults with WHO Group 1 pulmonary arterial hypertension (PAH).

Yutrepia (Liquidia), a dry powder inhaler formulation of the prostacyclin analog treprostinil, has been approved by the FDA to improve exercise ability in adults with pulmonary arterial hypertension (PAH; WHO Group 1) or pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3). Tyvaso DPI, another treprostinil dry powder inhaler, was approved earlier for the same indication.