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Brain surgeons pinpoint the 'Arrival Time' region during awake operations

NCT ID NCT04128306

Knowledge-focused Sponsor: University Hospital, Toulouse 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study investigates which parts of the brain help us judge when a moving object will reach us, a skill used in daily life. Researchers test patients during awake brain surgery for tumor removal, using a simple task where they estimate when a disappearing object would have made contact. By stimulating different brain areas during the task, the team aims to create a map of the regions responsible for time-to-contact perception.

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 reveal which brain areas are essential for timing everyday actions like catching a ball or crossing a street.
What could go wrong
This is a small, early-stage mapping study, not a treatment trial. Results may not apply to all people or lead to direct clinical changes.

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

120 people

The number who actually took part.

Started

Sep 2019

Finished

Jan 2025

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 to 70 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: For the patients: * Brain tumor that does not affect the dominant hand motricity. The patient that have a tumor in an area targeted for a cortical stimulation will be automatically enrolled within the Pre-End group. * Who will agree with all terms and sign the experimental agreement * Correct or corrected vision, as allowed by the surgery constraints * With no known oculomotor abnormalities (list of exclusion in Annexe) * Affiliated to a social security system For the control group: * Who will agree with all terms and sign the experimental agreement * Correct or corrected vision * With no known oculomotor abnormalities. * Affiliated to a social security system Exclusion Criteria: For the patients: * Brain tumor located in the occipital area * Legally protected patient, or with unknown ability to sign the experimental agreement, as determined by the medical team. * Medical background of neurological diseases of the central nervous system, as Parkinson, Alzheimer, stroke * Pregnancy For the control group: * Legally protected patient, or with unknown ability to sign the experimental agreement, as determined by the medical team. * Medical background of neurological diseases of the central nervous system, as Parkinson, Alzheimer, stroke * Pregnancy

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Conditions

The condition(s) this trial relates to.

brain cancer brain neoplasm

As listed by the trial registrant

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

Brain tumors

Contacts and locations

Locations

  • University Hospital

    Toulouse, 31000, France

More trials for these conditions

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