Acer Therapeutics ‘Complete Response’ on Edsivo NDA
FDA has issued Acer Therapeutics a complete response letter on its NDA for Edsivo (celiprolol) for treating vascular Ehlers-Danlos syndrome (vEDS). The agency letter says it will be necessary to conduct an adequate and well-controlled trial to “determine whether celiprolol reduces the risk of clinical events in patients with vEDS,” according to the company. Acer says it will request a meeting to discuss this.
vEDS is a collagen production disorder. Collagen is the main protein in connective tissue such as skin, bones, blood vessels, and many other organs and tissues. Eliprolol is a chemical entity originally developed to treat hypertension, and the company says it is thought to provide clinical benefit for people with vEDS by promoting normal collagen synthesis in the blood vessels, and by shifting the pressure load away from the vessels most prone to dissection and rupture. Although it can also be used to treat mild to moderate hypertension, celiprolol does not lower blood pressure in people with normal blood pressure, Acer adds.