Neuropsychological Evaluation in Intellectual Disability (ENDI)

NCT07047963 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2025-07-02

No results posted yet for this study

Summary

The goal of this observational study is to evaluate the acceptability ofpatients with trisomy 21 (T21) to perform the full battery of ENDI neurospychological tests and each of the subsets.

In this study, three types of population will be recruted : normotypic volunteers, patients with Intellectual Disability and patients T21carriers.

This study is separated into 2 phases :

* A the preliminary phase : this phase will be used to evaluate subtest design, ergonomics and understanding of instructions, and to identify any malfunctions. The observations gathered will enable the principal investigator to refine the digital design of the battery in collaboration with the publishing company. In this phase, normotypical volunteers and patients with intellectual disabilities will be recruted to perform ENDI test battery.
* A main phase : this phase will enable to answer to the main objective. in this phase, patients with Trisomy 21 aged between 25 and 65 will be recruted to perform ENDI test battery.

Conditions

  • Down Syndrome (Trisomy 21)
  • Neuropsychology
  • Cognitive Aging
  • Alzheimer Disease
  • Alzheimer Disease, Early Onset

Interventions

DIAGNOSTIC_TEST

ENDI (Neuropsychological Evaluation in Intellectual Disability)

This neuropsychological battery comprises 15 subtests designed to assess language, memory, attention and executive skills. By analyzing changes in Trisomy 21 patients performance over time, the neuropsychologist can detect early signs of Alzheimer's disease.

Sponsors & Collaborators

  • Central Hospital, Nancy, France

    lead OTHER

Eligibility

Min Age
25 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-07-01
Primary Completion
2026-08-31
Completion
2026-11-01

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07047963 on ClinicalTrials.gov