Rare disease mystery unraveled: 5-Year study tracks atypical morquio a
NCT ID NCT03204370
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study followed 7 adults with a milder form of Morquio A disease for 5 years to learn how the condition changes over time. Researchers measured walking ability and other health factors to better understand the disease and improve future treatment evaluations. The goal was to gather knowledge, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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7 people
The number who actually took part.
- Started
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Feb 2018
- Finished
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Sep 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
An unique large series of 9 adult patients (aged from 18 to 55 years) followed in a single expert center for metabolic disorders.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Rheumatology department - Bordeaux University Hospital
Bordeaux, Aquitaine, 33076, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.