NCT07546253

Brief Summary

This is a multi-site registry study that aims to collect real-world clinical outcomes and device performance of the OneRF Ablation System. The study focuses on patients with refractory epilepsy who undergo, or are being considered for, sEEG-guided RF ablation using the OneRF Ablation System, as part of routine seizure diagnosis and treatment.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
24mo left

Started Jul 2026

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 6, 2026

Completed
16 days until next milestone

First Posted

Study publicly available on registry

April 22, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2026

Expected
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2028

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2028

Last Updated

April 22, 2026

Status Verified

April 1, 2026

Enrollment Period

2 years

First QC Date

April 6, 2026

Last Update Submit

April 16, 2026

Conditions

Keywords

radiofrequency ablationsEEGepilepsy

Outcome Measures

Primary Outcomes (5)

  • Evaluate seizure outcomes

    Percentage of seizure-free patients and responders (seizure reduction \>50%) at longitudinal time points

    baseline to up to one (1) year

  • Evaluate changes in seizure frequency

    Change is seizure frequency at longitudinal time points

    baseline to up to one (1) year

  • Evaluate changes in seizure severity

    Change is seizure severity at longitudinal time points

    baseline to up to one (1) year

  • Evaluate antiseizure medication

    Changes in the antiseizure medication (ASM) dosage

    baseline to up to one (1) year

  • Gather product deficiency and patient safety events

    Number and description of adverse events related to the device, user, RF ablation procedure, therapy, and others

    From enrollment through the completion of follow-up visits (approximately a one-year period)

Other Outcomes (8)

  • Evaluate seizure related hospitalizations

    baseline to up to one (1) year

  • Evaluate device use

    During the ablation procedure

  • RF ablation parameters

    During RF ablation procedure

  • +5 more other outcomes

Study Arms (1)

Patients who have received or will receive an RF ablation procedure using the OneRF Ablation System

This registry collects both retrospective data from patients diagnosed with drug resistant epilepsy (DRE) who previously underwent a RF ablation procedure and prospective data from DRE patients who are considered for a RF ablation procedure using the OneRF Ablation System.

Other: Participants are not assigned an intervention as part of the study.

Interventions

For observational studies, participants are not assigned an intervention as part of the study.

Patients who have received or will receive an RF ablation procedure using the OneRF Ablation System

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients diagnosed with drug resistant epilepsy (DRE)

You may qualify if:

  • Patients diagnosed with drug resistant epilepsy (DRE)
  • Patients who have received or will receive EVO® sEEG-RF implants
  • Patients who have undergone or may undergo an RF ablation procedure using the OneRF Ablation System.
  • Patient, or legal guardian, understands study procedures and voluntarily signs informed consent in accordance with institutional policies. In the event that the patient is under the age of 18, the patient may also be required (per IRB) to sign an assent affirming their agreement to participate.

You may not qualify if:

  • \. Any condition that, in the judgement of the clinician, would make the participant inappropriate for registry participation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Zavala B, Kondylis E, Bulacio J, Chisholm J, Harasimchuk S, Rammo R, Bingaman W, Serletis D. Initial clinical experience with the first FDA-approved sEEG-guided radiofrequency ablation system featuring real-time temperature monitoring: A case series. Stereotact Funct Neurosurg. 2026 Mar 5:1-14. doi: 10.1159/000551390. Online ahead of print.

    PMID: 41785222BACKGROUND

MeSH Terms

Conditions

Drug Resistant EpilepsyEpilepsy

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Target Duration
1 Year
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 6, 2026

First Posted

April 22, 2026

Study Start (Estimated)

July 1, 2026

Primary Completion (Estimated)

July 1, 2028

Study Completion (Estimated)

July 1, 2028

Last Updated

April 22, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share