Corpus Callosum Agenesis and Intellectual Disability (NCT02167568) | Clinical Trial Compass
CompletedNot Applicable
Corpus Callosum Agenesis and Intellectual Disability
France360 participantsStarted 2012-01
Plain-language summary
Corpus callosum agenesis or dysgenesis (CCA) is a major brain malformation (˜1/4000 births) presently diagnosed by prenatal ultrasonography. In about half of the cases, CCA is associated with other anomalies (complex CCA), which usually leads to medical abortion. Syndromes including a CCA are many (hundreds), most of which are also associated with intellectual deficiency (ID). Several genes are involved in such complex CCA. On the other hand, several studies pointed to the favorable cognitive outcome of individuals/fetuses with an apparently isolated CCA (ICCA) during pregnancy in about 70% of cases. However, there are still 30% of cases with ID or developmental delay. The precise incidence and severity of these disorders are presently unclear. Therefore, prenatal counseling of couples facing a prenatal diagnosis of ICCA is still elusive.
Our aims are to unravel the genetic causes of CCA by combining phenotypic and genetic analyses in a prospective cohort of patients with CCA and intellectual disability, in order to improve prenatal information.
Who can participate
Age range
3 Months
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria :
* age \> 3 months
* patient with mental retardation
* patient with corpus callosum agenesis (complete or partial) or dysgenesis
Exclusion criteria :
* Patient with corpus callosum agenesis or dysgenesis but without mental retardation
* Patient with mental retardation but with total callosum corpus(cc)
* Patient with corpus callosum agenesis or dysgenesis and mental retardation whose origin is acquired
* Patient does not wish to participate, or whose parents / guardians refuse their participation
* Patient in whom brain MRI cannot be performed
* Patient not affiliated to a social security system (or beneficiaries who right) or CMU
* Patient with at least one of the two parent's inclusion it not possible
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.