Related Experiment Video
Updated: Dec 29, 2025

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
Published on: July 3, 2020
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.
Abstract:
X‑linked hypophosphatemic rickets (XLH, OMIM #307800) is a rare genetic metabolic disorder caused by dysregulation of fibroblast-like growth factor 23 (FGF23) leading to profound reduction in renal phosphate reabsorption. Impaired growth, severe rickets and complex skeletal deformities are direct consequences of hypophosphatemia representing major symptoms of XLH during childhood. In adults, secondary complications including early development of osteoarthritis substantially impair quality of life and cause significant clinical burden. With the global approval of the monoclonal FGF23 antibody burosumab, a targeted treatment with promising results in phase III studies is available for children with XLH. Nevertheless, complete phenotypic rescue is rarely achieved and remaining multisystemic symptoms demand multidisciplinary specialist care. Coordination of patient management within the major medical disciplines is a mainstay to optimize treatment and reduce disease burden. This review aims to depict different perspectives in XLH patient care in the setting of a multidisciplinary centre of expertise for rare bone diseases.
Related Concept Videos
Chronic Kidney Disease III: Interprofessional Care
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Chronic Kidney Disease II: Clinical Manifestations
Chronic Pancreatitis II: Collaborative Care
Assessment:
Introduction to Electrolytes
Role of Sodium
One...
Sex-linked Disorders

