Multidisciplinary patient care in X-linked hypophosphatemic rickets: one challenge, many perspectives

Adalbert Raimann1,2, Gabriel T Mindler3,4, Roland Kocijan5,4

  • 1Comprehensive Center for Pediatrics, Department of Pediatrics and Adolescent Medicine, Division of Pediatric Pulmonology, Allergology and Endocrinology, Medical University of Vienna, Vienna, Austria. adalbert.raimann@meduniwien.ac.at.

Insights

X-linked hypophosphatemia (XLH) is a rare genetic disorder affecting phosphate levels. While burosumab offers targeted treatment for children, multidisciplinary care is crucial for managing remaining symptoms and reducing disease burden.

Area of Science:

  • Genetics
  • Metabolic Disorders
  • Bone Diseases

Background:

  • X-linked hypophosphatemia (XLH) is a rare genetic metabolic disorder.
  • It stems from fibroblast growth factor 23 (FGF23) dysregulation, causing reduced renal phosphate reabsorption.
  • XLH presents with impaired growth, rickets, skeletal deformities in children, and osteoarthritis in adults.

Purpose of the Study:

  • To review perspectives in patient care for XLH.
  • To highlight the importance of multidisciplinary specialist care for rare bone diseases.
  • To optimize treatment and reduce the clinical burden of XLH.

Main Methods:

  • Literature review of XLH patient care.
  • Analysis of multidisciplinary approaches in rare bone disease centers.
  • Synthesis of current treatment strategies and outcomes.

Main Results:

  • Burosumab, an FGF23 antibody, shows promising results in phase III studies for children with XLH.
  • Complete phenotypic rescue is rarely achieved with current treatments.
  • Multisystemic symptoms necessitate ongoing specialist care.

Conclusions:

  • Multidisciplinary care coordination is essential for optimizing XLH patient management.
  • Targeted therapies combined with comprehensive care can reduce disease burden.
  • Expert centers for rare bone diseases play a vital role in managing XLH.

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