What do patients really know about their rare eye disease?
NCT ID NCT05390801
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study uses a one-time survey to learn about the eye and body symptoms of people with congenital aniridia, a rare genetic condition that affects the iris. Researchers want to see how much patients understand about their own disease. About 100 patients of all ages will take part, answering questions that will be compared with their medical records.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2023
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- 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
Patients followed in Necker Enfants Malades hospital, the referral center in France for congenital aniridia.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- 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: * Any patient ≥ 18 years old with congenital aniridia and able to respond independently to the study survey, * or patients under 18 years old with congenital aniridia, whose parents can answer the study survey, * adult patients or holders of parental authority and minor patients informed and not opposed to participation in the study. Exclusion Criteria: \- Patients with neurological disorders preventing them from answering the survey, except in the case of minor patients, if the parents can answer for the patient.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hôpital Necker-Enfants Malades
RECRUITINGParis, 75015, France
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