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Research and Characterization of New Genes Involved in Intellectual Disability

Recherche et caractérisation de Nouveaux gènes impliqués Dans la déficience Intellectuelle.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01867554
Acronym
GeneDefi
Enrollment
8500
Registered
2013-06-04
Start date
2012-12-31
Completion date
2022-12-31
Last updated
2026-06-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intellectual Disability

Keywords

Intellectual disability, Autism spectrum disorders, gene, Next generation sequencing

Brief summary

Intellectual disability (ID) occurs in 2 to 3 % of the general population but the cause is identified only in 30 to 60% of cases. The purpose of this study is to indentify genes involved in ID with new genetics tools (SNP-arrays, next generation sequencing...) and establish genotype-phenotype correlations.

Interventions

gene analysis

Sponsors

Institut National de la Santé Et de la Recherche Médicale, France
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* for the patients: Clinical diagnosis of intellectual disbility * for the unaffected sibs: to be aged at least 3 years * informed consent

Exclusion criteria

* absence of informed consent

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with genetic cause identified5 yearsNumber of participants for which the causative gene of intellectual disability will be identified and number of genes involved in intellectual disability identified with new technologies including microarray and next generation sequencing

Secondary

MeasureTime frameDescription
genotype-phenotype correlationsgenotype-phenotype correlations (according to the genes identified in a period of 5 years)Explore genotype-phenotype correlations when a new gene involved in intellectual disability will be identified

Countries

France

Contacts

STUDY_DIRECTORAlexis Brice, MD

Institut National de la Santé Et de la Recherche Médicale, France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 4, 2026