Please sign in to follow a disease.

Mucopolysaccharidosis type 9

MONDO:0011093

An autosomal recessive lysosomal storage disease caused by mutation(s) in the HYAL1 gene, encoding hyaluronidase-1. It is characterized by short stature and hyaluronidase deficiency.

Also known as: MPS9, MPSIX, mucopolysaccharidosis type 9, mucopolysaccharidosis type IX, MPS 9, hyaluronidase deficiency, mucopolysaccharidosis IX, mucopolysaccharidosis, type 9

4 clinical trials for this condition and its sub-types, 1 tagged with Mucopolysaccharidosis type 9 itself.

Follow this condition to get notified about new trials

Where it sits in the disease tree

Browse by category →

Part of

↑ Bone disorder (6305) ↑ Mucopolysaccharidosis (62)

Including sub-types (4) Tagged with Mucopolysaccharidosis type 9 (1)

Trials to join now! 2 Not yet recruiting 1 Not yet finished but already full! 1

New study monitors heart risks in rare genetic disease

Knowledge-focused Ongoing

This study follows 30 people with mucopolysaccharidoses (MPS) over three years to see how their heart and arteries change. Researchers use neck ultrasounds and blood tests to measure artery thickness, stiffness, and signs of inflammation. The goal is to better understand cardiova…

Sponsor: Children's Hospital of Orange County • Aim: Knowledge-focused

Last updated Jun 27, 2026 08:09 UTC

Mucopolysaccharidosis type 9

Where it sits in the disease tree

New study monitors heart risks in rare genetic disease