Capturing high-frequency brain oscillations to prevent seizures

Acute Recording of Stereotyped High-Frequency Oscillations with a Closed-Loop Brain Interchange System in Drug-Resistant Epilepsy

Not applicable Interventional Mayo Clinic · NCT05439655

This study is testing a new device that aims to prevent seizures in people with drug-resistant epilepsy by capturing brain signals and delivering targeted stimulation before seizures happen.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment12 (estimated)
Ages3 Years to 70 Years
SexAll
SponsorMayo Clinic Academic / other
Locations2 sites (Rochester, Minnesota and 1 other locations)
Trial IDNCT05439655 on ClinicalTrials.gov

What this trial studies

This study investigates the use of a new implantable system called Brain Interchange (BIC) to capture high-frequency oscillations (HFOs) in patients with drug-resistant epilepsy. The BIC system samples neural data at rates of 1kHz or higher and delivers targeted electrical stimulation to areas generating stereotyped HFOs, aiming to prevent seizures before they occur. Unlike existing systems that respond to seizures after they start, this approach seeks to proactively manage seizure activity by identifying and stimulating specific brain regions. If successful in this acute setting, the methods will be further tested in a chronic ambulatory clinical trial.

Who should consider this trial

Good fit: Ideal candidates include adults and children with medically refractory epilepsy who are suitable for intracranial EEG monitoring.

Not a fit: Patients whose conditions prevent them from continuing with recordings may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve seizure control for patients with drug-resistant epilepsy.

How similar studies have performed: While the concept of using HFOs for seizure control is promising, this specific approach with the BIC system is novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* patients with medically refractory epilepsy, who have been deemed appropriate candidates for intracranial EEG monitoring
* Adult men and women (18≤ age \<70 years)
* children (3≤ age \<18 years)
* includes women and minorities

Exclusion Criteria:

* Subjects will be excluded if their condition makes them unable to continue with recordings.

Where this trial is running

Rochester, Minnesota and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions EpilepsyNeuromodulationHFOMachine LearningClosed-Loop
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.