Ultragenyx Announces First Patient Dosed in Phase 1/2 Clinical Study of UX053, an mRNA Therapy for the Treatment of Glycogen Storage Disease Type III NOVATO, Calif., Dec. 01, 2021 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE), a biopharmaceutical company focused on the development and commercialization of novel products for...