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Evaluation of the Performance and Safety of a Medical Device Developed to Improve the Reading of Dyslexic Patients

Evaluation of the Performance and Safety of a Scintillating Lamp Developed to Improve the Reading of Dyslexic Patients

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04157829
Acronym
DysLight
Enrollment
33
Registered
2019-11-08
Start date
2019-12-18
Completion date
2021-01-08
Last updated
2021-04-29

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

Conditions

Dyslexia

Keywords

Dyslexia, Reading disorder

Brief summary

The aim of this study is to evaluate the efficacy and safety of a new medical device on the improvement of reading skills of dyslexic patients.

Detailed description

Dyslexia is defined as a specific learning disability that is characterized by reading difficulties, in the absence of intellectual disability, neurological or psychiatric disorder, uncorrected sensory disturbance (sight, hearing) or an educational deficiency. Dyslexia appears in the child from the earliest stages of learning in the form of a difficulty in mastering the learning of reading. This disorder is manifested by a generally hesitant reading, slowed down, full of errors, requiring a lot of effort for the child and may impact his reading comprehension. The dyslexia-related deficiency is of variable intensity depending on the individual; it may be accompanied by calculus disorders (dyscalculia), oral language (dysphasia), motor coordination (dyspraxia) or attention disorders with or without hyperactivity. In nearly 40% of cases, a child affected by Dys disorders presents several learning disorders. To date, the causes of dyslexia are not yet clearly established. The wide variety of symptoms and disorders associated with dyslexia does not facilitate the identification of precise neurobiological / psycho cognitive mechanisms. There are therefore several theories: phonological, visual, temporal, cerebellar or proprioceptive auditory processing. Recently, following work published in 2017, an anatomical cause based on Maxwell's spots could also be a cause of dyslexia. The aim of this study is to evaluate a new medical device to compensate this probable anatomical cause.

Interventions

DEVICEScintilling lamp

Lamp with a standardized scintilling

DEVICEClassic lamp

Lamp without a scintilling

Sponsors

Slb Pharma
CollaboratorOTHER
SATT Ouest Valorisation
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
8 Years to 11 Years
Healthy volunteers
No

Inclusion criteria

* Schooled in CE2, CM1 or CM2, * French mother tongue, * For whom developmental dyslexia has been diagnosed by a health professional who specializes in this learning disorder, * Presenting an IQ ≥ 80 and ≤130 according to the WISC-V test performed by a psychologist, * For which a written consent was obtained regarding his study participation.

Exclusion criteria

* With medical history or presenting a neurological pathology, * Presenting a developmental disorder (autism, ADHD, ...), * Presenting hearing disorders, * Presenting visual disorders, * Any other condition that, in the opinion of health professionals, could impair its ability to complete the study or could pose a significant risk.

Design outcomes

Primary

MeasureTime frameDescription
Reading performance aloud of a text with french E.L.FE Test1 dayE.L.FE Test (=Evaluation de la Lecture en FluencE) - Monsieur Petit and Le Géant égoïste texts : percentile

Secondary

MeasureTime frameDescription
Reading performance aloud of isolated words with french BALE Test1 dayBALE test (=Batterie Analytique de Langage Ecrit): percentile
Security: incidence of Adverse Events1 dayBy questioning the patient & the speech therapist - evaluation of adverse effects due to scintilling lamp (Yes/ No): headache, nausea, dizziness, fatigue and eye fatigue. Accotding to patient questioning and clinical exam, the Adverse Event Table will be completed (description, dates, severity, imputability, action,...).
Patient's satisfaction regarding reading fluency1 daypatient interview with VAS (Visual Analogue Scale): 0 - 100 mm
Speech therapist's satisfaction regarding Securirty, Performance and usability of scintilling lamp1 dayspeech therapist interview with 4 points - Likert scale (Very good, Good, Moderate, Bad)

Countries

France

Outcome results

None listed

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