Six weeks ahead of its PDUFA date, Kadmon Holdings Inc.’s NDA for Rezurock (belumosudil) has been approved to treat chronic graft-vs.-host disease. The selective oral inhibitor of Rho-associated coiled-coil kinase 2, a daily treatment for patients 12 and older after failure of at least two prior lines of systemic therapy, is the New York-based company’s first approved therapy.