X-linked hypophosphatemia (XLH)

Progressive, chronic, skeletal1,2

XLH is characterized by renal phosphate wasting, which is caused by excess fibroblast growth factor 23 (FGF23) production1,2

Pediatric skeletal manifestations and  Adult skeletal manifestation Pediatric skeletal manifestations andAdult skeletal manifestation

See the lifelong spectrum of XLH

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Discover how FGF23 impacts phosphate homeostasis

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1. Martin A, Quarles LD. Evidence for FGF23 involvement in a bone-kidney axis regulating bone mineralization and systemic phosphate and vitamin D homeostasis. Adv Exp Med Biol. 2012;728:65-83. 2. Carpenter TO, Imel EA, Holm IA, Jan de Beur SM, Insogna KL. A clinician's guide to X-linked hypophosphatemia. J Bone Miner Res. 2011;26(7):1381-1388. 3. Linglart A, Biosse-Duplan M, Briot K, et al. Therapeutic management of hypophosphatemic rickets from infancy to adulthood. Endocr Connect. 2014;3(1):R13-R30. 4. Zivičnjak M, Schnabel D, Billing H, et al. Age-related stature and linear body segments in children with X-linked hypophosphatemic rickets. Pediatr Nephrol. 2011;26(2):223-231. 5. Che H, Roux C, Etcheto A, et al. Impaired quality of life in adults with X-linked hypophosphatemia and skeletal symptoms. Eur J Endocrinol. 2016;174(3):325-333. 6. Linglart A, Dvorak-Ewell M, Marshall A, et al. Impaired mobility and pain significantly impact the quality of life of children with X-linked hypophosphatemia (XLH). Poster presented at: ICCBH 2015 Salzburg, Austria. 7. Skrinar A, Marshall A, San Martin J, Dvorak-Ewell M. X-linked hypophosphatemia (XLH) impairs skeletal health outcomes and physical function in affected adults. Poster presented at: Endocrine Society’s 97th Annual Meeting and Expo, March 5-8, 2015. San Diego, CA. 8. Data on file. Ultragenyx, Inc. 9. Veilleux LN, Cheung M, Ben Amor M, Rauch F. Abnormalities in muscle density and muscle function in hypophosphatemic rickets. J Clin Endocrinol Metab. 2012;97(8):E1492-E1498. 10. Looser zones. Radiopaedia Web site. https://radiopaedia.org/articles/looser-zones-1. Accessed October 9, 2017.

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