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17 Apr, 2018, 20:19 BST Ultragenyx and Kyowa Kirin Announce FDA Approval of Crysvita® (burosumab-twza) for the Treatment of Children and Adults with X-Linked Hypophosphatemia (XLH)

First Approved Therapy for XLH in the U.S.; Only Treatment that Targets the Underlying Cause of this Rare, Hereditary, Lifelong Disease Ultragenyx to ...