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Scientists probe Brain's time cells with scopolamine in epilepsy patients

NCT ID NCT05594017

Knowledge-focused Sponsor: University of Texas Southwestern Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Updated 1 time

Summary

This early-phase study investigates how scopolamine, a drug known to affect memory, changes brain activity in people with epilepsy who are already undergoing brain monitoring for seizures. Sixty participants will receive either scopolamine or a placebo and perform memory tasks while their brain signals are recorded. The goal is to understand when and how the drug impacts memory formation and recall, which could shed light on memory disorders.

What this could mean

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

Active substance
Scopolamine
What this could lead to
If successful, this study could reveal how certain drugs affect memory processes in the brain, potentially guiding future treatments for memory loss.
What could go wrong
This is a very early, small study (60 participants) focused on understanding brain activity, not testing a treatment. Results may not apply to the general population.

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

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 60 people

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

Started

Aug 2019

Expected to finish

May 2027

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.

Ages

18 to 55 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.

Patient inclusion criteria: 1. Age 18 - 55 years, all races/ethnicities, and both genders are eligible. 2. Candidates for pre-operative evaluation using stereo intracranial electrodes and admission to the Epilepsy Monitoring Unit (EMU) as determined independently by the patient's treating physician as part of the patient's routine medical care. 3. Able to read, understand, and provide written, dated informed consent prior to screening. 4. In good general health, aside from a history of epilepsy, as ascertained by medical history, physical examination (PE), clinical laboratory evaluations, and ECG. 5. Body mass index between 18-35 kg/m2. Patient exclusion criteria: 1. Has a clinically significant abnormality on the screening physical examination that might affect safety, study participation, or confound interpretation of study results according to the study physician. 2. Female that is pregnant, breastfeeding, or has a positive pregnancy test at screening or baseline. Note that pregnant patients are excluded from undergoing iEEG generally and all patients undergo a positive screening urine test for drugs of abuse at screening: cannabinoids, cocaine, amphetamines, barbiturates, opiates not otherwise explained by their prescribed medications. 3. History of renal insufficiency. 4. Unstable cardiac syndrome or active cardiac symptoms. 5. Patients with liver failure. 6. Patients with BPH. 7. Patients with autoimmune neuropathy. 8. Patients with uncontrolled hyperthyroidism. 9. Patients with a history of dementia. 10. Patient with a history of delirium after using transdermal scopolamine. 11. History of narrow-angle glaucoma. 12. History of pyloric obstruction or paralytic ileus. 13. History of myasthenia gravis, obstructive uropathy, porphyria, or myasthenia gravis.

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Conditions

The condition(s) this trial relates to.

cognitive disorder Cognitive Dysfunction epilepsy Memory Disorders visual epilepsy

As listed by the trial registrant

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

Cognitive impairment, mild Epilepsy Memory disorders Memory loss Seizures

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 of Texas Southwestern Medical Center

    RECRUITING

    Dallas, Texas, 75390, United States

More trials for these conditions

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