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New EEG method could sharpen brain mapping for epilepsy and tumors

NCT ID NCT04266041

Diagnosis Sponsor: Dartmouth-Hitchcock Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested a high-density EEG (using up to 256 electrodes) to map brain areas involved in movement, sensation, language, and emotion. It included 122 people with epilepsy, brain tumors, or healthy controls. The goal was to see if this technique can more precisely locate seizure sources and brain functions compared to standard EEG.

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 improve how doctors pinpoint seizure origins and map brain functions without invasive procedures.
What could go wrong
This is an observational diagnostic study, not a treatment trial. Results may not directly change patient care and require further validation.

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

122 people

The number who actually took part.

Started

Feb 2018

Finished

Dec 2024

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

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: * Able to perform the tasks * Able to give own consent Exclusion Criteria: * Any neurologic or psychiatric diagnosis such as stroke, tumor, or psychosis judged to interfere with high-density EEG.

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Conditions

The condition(s) this trial relates to.

epilepsy Language neoplasm stroke disorder

As listed by the trial registrant

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

Epilepsy Healthy Tumor

Contacts and locations

Locations

  • Dartmouth-Hitchcock Medical Center

    Lebanon, New Hampshire, 03756, United States

More trials for these conditions

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