Mainstay Medical International plc announced the appointment of Matthew Onaitis as Chief Financial Officer, effective August 20, 2018. Mr. Onaitis has worked with dynamic healthcare businesses for 20 years, ranging from global multinationals including Biogen Idec and Elan Pharmaceuticals, to innovative specialty pharmaceutical companies such as Ignyta, Trius Therapeutics, and Somaxon Pharmaceuticals. He most recently served as Chief Financial Officer of Cidara Therapeutics.