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Brain chemical clues found in kids with learning disabilities

NCT ID NCT07240142

Knowledge-focused Sponsor: Dilara Ulger Ozbek 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study measured levels of certain brain chemicals (glutamate, nitric oxide, and L-arginine) in 40 children—some with specific learning disorder and some without. Researchers also gave neuropsychological tests to see if chemical levels relate to learning and thinking skills. The goal was to better understand how brain chemistry may differ in children with learning disorders.

What this could mean

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

What this could lead to
If successful, this could help identify biological markers for specific learning disorder, potentially leading to earlier diagnosis or new treatment targets.
What could go wrong
This is a small, completed observational study with only 40 participants. The findings are preliminary and may not apply to all children with learning disorders. No treatment is being tested.

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

40 people

The number who actually took part.

Started

Oct 2019

Finished

Apr 2021

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

7 to 14 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Study group: no additional mental disorder except a specific learning disability, * The control group had no mental illness. * Having no head injury or neurological illness for all groups. * There is no drug that might possibly alter cognitive functions for all populations. Exclusion Criteria: * The study group had a mental disease other than a specific learning disability and ADHD. * The control group had any mental condition. * Having a head injury or neurological illness in all categories. * Using drugs that may impair cognitive functioning in all groups those with additional diseases

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Conditions

The condition(s) this trial relates to.

specific learning disability

As listed by the trial registrant

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

Healthy controls Specific learning disability

Contacts and locations

Locations

  • Sivas Cumhuriyet University

    Sivas, Central, 58146, Turkey (Türkiye)

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Other studies related to the condition(s) this trial covers.