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Brain zaps and motor drills: a new hope for dyslexia?

NCT ID NCT07781761

Disease control Sponsor: Shahid Beheshti University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 24, 2026 · Last updated Aug 26, 2026 · Updated 2 times

Summary

This trial tests whether combining a gentle brain stimulation technique called tDCS with reading and fine motor training can improve reading skills in 9-year-old boys with developmental dyslexia. The study targets two brain areas involved in reading and hand movements, and participants will receive either active or sham stimulation along with different types of training. Reading and motor skills will be measured before, right after, and at 3 and 6 months after the treatment to see if the combined approach works better than single treatments.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
transcranial direct current stimulation (tDCS) combined with phonological and fine motor training
What this could lead to
If effective, this combined approach could offer a new, non-invasive way to improve reading and phonological skills in children with dyslexia.
What could go wrong
This is an early-stage trial, and results may not show a clear benefit over existing methods. Brain stimulation in children also carries unknown risks and may not be widely accessible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 160 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Aug 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

108 to 119 months

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male children aged 9 years (9 years 0 months to 9 years 11 months) with developmental dyslexia diagnosed according to DSM-5 criteria by a clinical team. * Reading and Dyslexia Test (NAMA) T score ≤ 30 (at least 2 standard deviations below the mean). * Full Scale IQ ≥ 85 on the Wechsler Intelligence Scale for Children, Fifth Edition (WISC-V). * Score below 88 on the Spence Children's Anxiety Scale (SCAS). * Fine motor deficits defined as standard score ≤ 40 on Bruininks-Oseretsky Test of Motor Proficiency, Second Edition (BOT-2) manual dexterity and upper-limb coordination subtests. * Normal or corrected-to-normal vision and hearing. * No history of seizure or epilepsy, no scalp skin disease, no cochlear implant, cardiac pacemaker, or metal implants in the skull. * Written informed consent from parents or legal guardian and verbal assent from the child. Exclusion Criteria: * Intellectual disability (Full Scale IQ \< 85). * Personal history of epilepsy or seizure disorder, or epilepsy in a first-degree relative. * Presence of cochlear implant, cardiac pacemaker, or metal implants in the skull. * Skin diseases or open lesions on the scalp at electrode sites. * Uncorrected visual or hearing impairments. * Other primary psychiatric or neurodevelopmental disorders requiring ongoing treatment (e.g., ADHD, autism spectrum disorder, severe anxiety disorder).

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Conditions

The condition(s) this trial relates to.

dyslexia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Developmental dyslexia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Consultation, Psychological, Research and Specialized Services Center of Isfahan Province General Department of Education

    Isfahan, Isfahan, 8155113853, Iran