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Hidden seizures after stroke: EEG may spot them early

NCT ID NCT07190976

Knowledge-focused Sponsor: Attikon Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study will use routine EEG recordings in 100 stroke patients to see if brain activity patterns can predict who will develop epilepsy. Researchers also aim to detect hidden (subclinical) seizures that may affect recovery. The study is observational, meaning no new treatment is being tested—just monitoring and data collection.

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 doctors identify stroke patients at risk of epilepsy earlier, allowing for timely monitoring or treatment.
What could go wrong
This is an observational study, not a treatment trial. It may not lead to any direct changes in care, and results may not apply to all stroke patients.

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.

Participants

About 100 people

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

Started

Mar 2024

Expected to finish

Sep 2026

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.

Who is studied

Patients with acute ischemic or hemorrhagic stroke in whom it is not possible to perform an electroencephalogram within the first 7 days after the event, as well as patients who themselves or their legal representatives do not consent to participation, will be excluded from the study.

Ages

18 years and older

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: Patients over 18 years of age with confirmed acute ischemic or hemorrhagic stroke are eligible for inclusion in the study. Patients whose clinical presentation mimics that of a stroke will be included until the diagnosis of stroke is ruled out, at which point they will be excluded from the study. \- Exclusion Criteria: \-

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Conditions

The condition(s) this trial relates to.

epilepsy hemorrhagic stroke ischemic stroke

As listed by the trial registrant

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

Epilepsy

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

  • University General Hospital "ATTIKON"- General Hospital of West Attica "H AGIA VARVARA" 2nd Neurology Clinic, NKUA

    RECRUITING

    Chaïdári, Athens, 12462, Greece

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