Overview A Study of KRN23 in X-linked Hypophosphatemia Status: Completed Trial end date: 2013-05-01 Target enrollment: Participant gender: Summary The primary objective of this study is to assess the safety and tolerability of KRN23 after a single intravenous (IV) and subcutaneous (SC) administration in XLH patients. Phase: Phase 1 Details Lead Sponsor: Kyowa Hakko Kirin Pharma, Inc.