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Scientists hunt for genes behind rare kidney condition

NCT ID NCT00925379

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how often kidney hypodysplasia (a condition where one or both kidneys are small and underdeveloped) runs in families. Researchers collected DNA from 342 children aged 3 months to 18 years to try to find genes that may cause the condition. The goal was to better understand its genetic basis, not to test a treatment.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help identify genes linked to kidney hypodysplasia, paving the way for future genetic testing or understanding of the condition.
What could go wrong
This is an observational study, not a treatment trial. It may not find clear genetic links, and any findings would need much more research before they could help patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

342 people

The number who actually took part.

Start date

Apr 2009

Finished

Jul 2014

Lead sponsor

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

Children with a bilateral renal hypodysplasia

Ages

3 months to 18 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria : \- Children aged more than 3 months and less than 18 years old with a renal bilateral HYPODYSPLASIA set by renal ultrasound examination : * renal size \< -2DS * with/or hyperechogenicity or lack of cortical-medullary differentiation * with/or renal cysts Exclusion criteria : * Bladder uropathy or sus-bladder uropathy * Recessive or dominant renal polycystic disease * Bardet-Biedl syndrome and other malformative syndromes except renal coloboma syndrome, Renal cysts and diabetes syndrome RCAD * Lack of written informed consent

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Conditions

The condition(s) this trial relates to.

congenital anomalies of kidney and urinary tract 1 renal hypoplasia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Renal hypodysplasia, nonsyndromic, 1

Contacts and locations

Locations

  • Necker Hospital

    Paris, 75015, France