NCT00245804

Brief Summary

Developmental dyslexia is a frequent learning disability. The aim of this study is to compare auditory evoked cortical responses to syllables and tones in developmental dyslexia and controls (paired with age, gender). The study is conducted in 3 groups of subjects :8-10 years ; 11-17 years and 18-25 years. We suppose that cortical responses should be different in developmental dyslexia and controls.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Mar 2003

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2003

Completed
1.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2005

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

October 26, 2005

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 28, 2005

Completed
Last Updated

June 30, 2010

Status Verified

January 1, 2005

First QC Date

October 26, 2005

Last Update Submit

June 29, 2010

Conditions

Developmental Reading DisorderDyslexia

Study Arms (4)

Adult dyslexia

Adult dyslexia

Minor-Dyslexia

Minor-Dyslexia

Adult-Control

Adult-Control

Minor-Control

Minor-Control

Eligibility Criteria

Age8 Years - 25 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

Patients with developmental reading disorders from 8 to 25 jears. Control groupes with healthy people in de same age

You may qualify if:

  • Age (8-10 years ; 11-17 years ; 18-25 years developmental reading disorders (developmental dyslexia) criteria according to Critchley (1970) PIQ \> 85 No auditory deficit No psychosis -

You may not qualify if:

  • PIQ \< 85 Epilepsy ADHD Stroke, head injury

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital of Tours

Tours, 37044, France

Location

MeSH Terms

Conditions

Dyslexia

Condition Hierarchy (Ancestors)

Language DisordersCommunication DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSpecific Learning DisorderLearning DisabilitiesSigns and SymptomsPathological Conditions, Signs and SymptomsNeurodevelopmental DisordersMental Disorders

Study Officials

  • Caroline Hommet

    University Hospital of Tours

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER

Study Record Dates

First Submitted

October 26, 2005

First Posted

October 28, 2005

Study Start

March 1, 2003

Study Completion

February 1, 2005

Last Updated

June 30, 2010

Record last verified: 2005-01

Locations

FR(1)