News FDA backs second rare disease drug from Ultragenyx in the space of a fortnight Richard Staines fda, LC-FAOD, Rare diseases, Ultragenyx 0 Comment The FDA has approved a second rare disease drug from California-based Ultragenyx in the space of a fortnight, for treatment Share X FDA backs second rare disease drug from Ultragenyx in the space of a fortnight https://pharmaphorum.com/news/fda-backs-ultragenyxs-second-rare-disease-drug-in-the-space-of-a-fortnight/