About Careers Internship MedBlog Contact us
Medindia LOGIN REGISTER
New Treatment Option for X-linked Hypophosphatemia
Advertisement

New Treatment Option for X-linked Hypophosphatemia

Font : A-A+

Highlights:
  • Burosumab is a monoclonal antibody that acts against the fibroblast growth factor 23 (FGF23)
  • It has been granted conditional approval for the treatment of X-linked hypophosphatemia from the European Union
  • Further studies are required before its use can be established for the condition

The European Medicines Agency's (EMA) Committee for Medicinal Products for Human Use (CHMP) has granted conditional marketing authorization for burosumab for the treatment of a rare bone disease called X-linked hypophosphatemia (XLH). Burosumab can now be used in the European Union in children over 1 year of age and in adolescents with growing skeletons and with radiological evidence of the presence of the condition. Currently, the US Food and Drug Administration (FDA) is also reviewing the drug for its use in the rare condition.

Advertisement


Burosumab is a monoclonal antibody directed against the hormone fibroblast growth factor 23 (FGF23). FGF23 prevents the reabsorption of phosphate by the kidney. It also plays a role in the regulation of vitamin D. An excess of FGF23 results in excess loss of phosphate and reduces its blood level. Burosumab increases the reabsorption of phosphate from the kidney thereby increasing the blood phosphate levels. It also increases the production of vitamin D, which in turn increases the absorption of calcium and phosphate from the intestine, thereby increasing their blood levels.

The benefits of burosumab in X-linked hypophosphatemia in increasing blood phosphate levels and improving rickets have been demonstrated in two small studies. One study was conducted on 53 children in the age group of 5 to 12 years with the disorder, while the second study was conducted on 13 children between the ages of 1 to 4 years. Side effects noted were reactions at the site of the injection, headache and pain in the extremities.
Advertisement

Burosumab is also being evaluated for the treatment of tumor-induced osteomalacia, another condition that weakens bones. Tumor-induced osteomalacia occurs in patients with benign tumors and is associated with high FGF23 levels.

About X-linked Hypophosphatemia (XLH)

X-linked hypophosphatemia (XLH) is a rare inherited bone disorder that arises due loss of excess phosphate through the urine. This results in low levels of phosphate in the blood, which in turn draws phosphate from the bone, thereby weakening it and resulting in rickets. The patient has a high level of the FGF23 hormone.

Children with XLH suffer from bone and teeth pain, along with bone deformities that include bent legs and short stature. Other features include a waddling gait, muscle weakness, pseudofractures, narrowing of the spinal cord, abnormal bone growth at the attachment of tendons or ligaments to bone (enthesopathy) and osteoarthritis. Treatment includes the intake of oral phosphate and vitamin D, which treat the symptoms but do not address the underlying problem.

References :
  1. Hereditary hypophosphatemic rickets - (https://ghr.nlm.nih.gov/condition/hereditary-hypophosphatemic-rickets)
  2. FGF23 Gene - (https://ghr.nlm.nih.gov/gene/FGF23)
Source: Medindia

Citations   close

Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Top 10 Foods for Decreasing DHT Production and Preventing Hair Fall
Alarming Cesarean Section Trends in India - Convenience or Compulsion of Corporate Healthcare
Quiz on Low-Calorie Diet for Diabetes
View all
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

Most Popular on Medindia

Drug - Food Interactions Nutam (400mg) (Piracetam) Turmeric Powder - Health Benefits, Uses & Side Effects A-Z Drug Brands in India Indian Medical Journals Sanatogen Find a Doctor Calculate Ideal Weight for Infants Daily Calorie Requirements Color Blindness Calculator
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

New Treatment Option for X-linked Hypophosphatemia Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests