 NEWTON, Mass., Dec. 01, 2020 GLOBE NEWSWIRE -- Allena Pharmaceuticals, Inc. NASDAQ: ALNA, a late-stage, biopharmaceutical company dedicated to developing and commercializing first-in-class, oral enzyme therapeutics to treat patients with rare and severe metabolic and kidney disorders, today announced the appointment of David J. Clark, M.D., M.R.C.P, as Chief Medical Officer, effective immediately. Dr. Clark succeeds Annamaria Kausz, M.D., who will transition to supporting the company in an advisory capacity. 