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Can a brain zapping headset restore focus after long COVID?

NCT ID NCT06517706

Symptom relief Sponsor: University of Cyprus 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 01, 2026 · Last updated Sep 02, 2026 · Updated 1 time

Summary

This trial tests whether combining a gentle electrical brain stimulation technique called tDCS with a computer-based cognitive training program can ease the thinking and memory problems that some people experience after COVID-19. About 38 adults with long COVID-related cognitive difficulties will be randomly assigned to receive either active tDCS or a sham (inactive) version during their training sessions. Over five weeks, participants will attend 15 one-hour sessions. The study will measure changes in decision-making, rule-based learning, everyday executive function, and quality of life.

What this could mean

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

Active substance
A combination of transcranial direct current stimulation (tDCS) and cognitive training with the Categorization Program
What this could lead to
If it works, this could point toward a non-drug treatment to help people with long COVID regain clearer thinking and better decision-making.
What could go wrong
The trial is small and early, so results may not apply to everyone. tDCS can cause mild discomfort, and the cognitive training may not help all types of thinking problems.

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

38 people

The number who actually took part.

Started

Nov 2024

Finished

Jun 2026

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

25 to 60 years

Sex

Female 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: * Reported cognitive difficulties due to COVID-19 infection * WHO Long COVID criteria will be used Exclusion Criteria: * Significant history of neuropsychiatric conditions prior to contracting COVID-19; history of neurological conditions such as TBI, CVA, MS prior to contracting COVID-19.

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Conditions

The condition(s) this trial relates to.

long COVID-19

As listed by the trial registrant

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

Cognitive training Transcranial direct current stimulation

Contacts and locations

Locations

  • University of Cyprus

    Nicosia, Cyprus, 1678, Cyprus

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