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DyslexiaDyslexie REMEDNCT05514457

Assessment of Visual Dyslexia Remediation Protocols - Dyslexia REMEDIATION

A study testing visual stimulation with I pad and visual stimulation with lamp in people with Dyslexia, run by Hospices Civils de Lyon at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Dyslexia is first described as a phonological deficit. Several studies report a neurovisual deficit in dyslexics. Some dyslexics have a visual deficit without phonological impairment, others have a pure phonological deficit, and still others have both types of deficits. Read more about this study

Who is it for?
Ages 8 to 12 years
Conditions the study is for
Dyslexia
What is being tested?
visual stimulation with I pad and visual stimulation with lamp
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
1 siteFrance
Study dates
17 Nov 2022to 15 Mar 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 8 to 12 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Male or female
  • Aged 8 to 12
  • Diagnosed dyslexics
  • Normal or corrected to normal vision
  • Legal guardians of children subjects providing their free, informed and written consent to participate in the study; With the child also giving orally his consent to participate.

Who cannot join

  • other neurodevelopmental problem
  • strabismus, amblyopia
  • For the glasses (group 2) : epileptic child are excluded

Trial locations and contacts

1 site in 1 country.

France1 site
  • Centre de Recherche en Neurosciences de Lyon

    Bron, Auvergne-Rhône-Alpes, 69500

Other trials in France

About this study

Dyslexia is first described as a phonological deficit. Several studies report a neurovisual deficit in dyslexics. Some dyslexics have a visual deficit without phonological impairment, others have a pure phonological deficit, and still others have both types of deficits. From this observation the idea emerged to propose specific remediation protocols for people with visual impairments and to assess their effects on reading. At the theoretical level, if visual stimulation is able to improve reading performance, it is the demonstration of the existence of visual origin of dyslexia. At the clinical level, such a result not only opens the prospect of a different and more adapted rehabilitation for these types of dyslexia, but also the prospect, if the visual deficits are pre-existing to the learning of reading, to use them for early diagnosis and management.

Conditions
Dyslexia
Being tested
visual stimulation with I pad, visual stimulation with lamp
Keywords
Dyslexia, Remediation, Visual attention span, Visual search
Medical subject headings
Dyslexia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • visual stimulation with I padBehavioural

    At the beginning of the study, for baseline condition, children will do 4 tests (visuo-spatial perception test, visual attention span, visual research, phonology tests).

    In the first group of the study, the children will do visual research exercises on I pad 10 minutes per day during one month = remediation. They will also do 4 reading aloud tests, once a month, for 3 months. The remediation exercises will be realized during the first, second or third month.

  • visual stimulation with lampBehavioural

    At the beginning of the study, for baseline condition, children will do the 4 tests like group 1.

    In the second group of the study, the children will do reading aloud tests, with lamp adjusted with different parameters = remediation (passive visual stimulation of a specific frequency believed to promote visual processing of written symbols).

Study groups in NCT05514457
Study groupRoleWhat they receive
remediation group 1Experimentaldyslexic children
Receives: Behavioral: visual stimulation with I pad
remediation group 2Experimentaldyslexic children
Receives: Behavioral: visual stimulation with lamp

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. reading performance

    change in reading time

    Measured: for arm 1: at baseline at 1 month at 2 month at 3 month For arm 2: 4 times in the same day, 4 consecutive reading sessions with a break in-between of minimum 5 minutes

  2. reading performance

    change in number of errors

    Measured: for arm 1: at baseline at 1 month at 2 month at 3 month For arm 2: 4 times in the same day, 4 consecutive reading sessions with a break in-between of minimum 5 minutes

Secondary outcomes (4)
  1. score of Elementary Visuo-Spatial Perception test

    comparisons of score of (lengths, sizes, angles and relative positions within and between objects). Minimum score = 36 and maximum (better) score = 72

    Measured: one time at baseline

  2. visual attention span

    number of letters identified in a single ocular fixation (200 ms)

    Measured: one time at baseline

  3. Visual search time

    average visual search time of symbols versus colored objects

    Measured: one time at baseline

  4. performance score on the phonology tests (EVALéo 6-15 = Evaluation of written language and oral language 6-15 years)

    metaphonology = removal of phonemes. Minimum score = 0 and maximum (better) score = 20

    Measured: one time at baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Aug 2022
  2. Study start17 Nov 2022
  3. Primary completion15 Mar 2024
  4. Study completion15 Mar 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05514457
Sponsor's protocol ID
69HCL21_0736
Acronym
Dyslexie REMED
Status last verified
Sep 2024
First submitted
5 Aug 2022
Last updated
25 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing visual stimulation with I pad and visual stimulation with lamp in people with Dyslexia, run by Hospices Civils de Lyon at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

reading performance (time frame: for arm 1: at baseline at 1 month at 2 month at 3 month For arm 2: 4 times in the same day, 4 consecutive reading sessions with a break in-between of minimum 5 minutes). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2024.

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