Understanding Atypical Morquio A Disease

Natural History of Atypical Morquio A Disease: a 5-years Prospective Study in a Series of 9 Adult Patients Followed in a Single Expert Center

Association Aquitaine de Recherche Clinique en Rhumatologie · NCT03204370

This study is trying to learn more about Morquio A disease and how it affects people's health and quality of life, whether they are receiving a specific treatment or not.

Quick facts

Study typeObservational
Enrollment10 (estimated)
Ages18 Years and up
SexAll
SponsorAssociation Aquitaine de Recherche Clinique en Rhumatologie (other)
Locations1 site (Bordeaux, Aquitaine)
Trial IDNCT03204370 on ClinicalTrials.gov

What this trial studies

This observational study focuses on Mucopolysaccharidosis IV A (Morquio A disease), a rare genetic disorder caused by a deficiency in the enzyme N-acetylgalactosamine-6-sulfatase. It aims to gather data on the natural history of the disease, including its progression and the impact of enzyme replacement therapy (ERT) with elosulfase alfa. The study will involve patients who are either receiving ERT or not, and will be conducted at an expert center to ensure comprehensive assessment and management. The goal is to better understand the disease's effects on patients' health and quality of life.

Who should consider this trial

Good fit: Ideal candidates include patients diagnosed with MPS IVA who are over 1 meter tall and are either receiving ERT or not.

Not a fit: Patients with other diseases or those who refuse to participate will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of Morquio A disease and improve management strategies for affected patients.

How similar studies have performed: Previous studies on enzyme replacement therapy for Morquio A disease have shown significant improvements, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* MPS4A affected patients
* Height more than 1 m (atypical phenotypes)
* Treatment by ERT or not
* Followed in our expert center
* Having signed an inform consent form
* Being affiliated to a health insurance system

Exclusion Criteria:

* Patients affected by another disease
* Patients refusing to participate to the study

Where this trial is running

Bordeaux, Aquitaine

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Mucopolysaccharidosis IV A

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.