Medical Articles

Sotatercept

ActRIIA ligand trap (Activin signaling inhibitor)

Description

First-in-class activin signaling inhibitor (ActRIIA ligand trap) for pulmonary arterial hypertension (PAH). Binds and neutralizes activin A/B ligands to promote right ventricular adaptation.

Mechanism of action

Recombinant ActRIIA receptor ectodomain acts as ligand trap, binding activin A and B ligands, preventing Smad signaling. Reduces TGF-β superfamily pathway activation, promoting RV hypertrophy adaptation and reducing maladaptive remodeling.

This page is restricted. Please Login / Register to view this page.

Mechanism of action

Recombinant ActRIIA receptor ectodomain acts as ligand trap, binding activin A and B ligands, preventing Smad signaling. Reduces TGF-β superfamily pathway activation, promoting RV hypertrophy adaptation and reducing maladaptive remodeling.

This page is restricted. Please Login / Register to view this page.