Stereotactic Laser Ablation for Temporal Lobe Epilepsy (Slate)

NCT ID: NCT02844465

Last Updated: 2025-01-17

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

167 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-12-31

Study Completion Date

2023-12-11

Brief Summary

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The study is designed to evaluate the safety and efficacy of the Visualase MRI-guided laser ablation system for mesial temporal epilepsy (MTLE).

Detailed Description

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The purpose of the study is to evaluate the safety and efficacy of the Visualase MRI-guided laser ablation system for necrotization or coagulation of epileptogenic foci in patients with intractable mesial temporal lobe epilepsy.

The study will include approximately 150 adult patients with drug-resistant MTLE treated at selected epilepsy centers across the United States. After the Visualase procedure, patients will be followed for 12 months and evaluated for freedom from seizures, quality of life, adverse events, and neuropsychological outcomes.

Conditions

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Temporal Lobe Epilepsy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment

Visualase MRI-guided laser ablation procedure

Group Type EXPERIMENTAL

Visualase MRI-Guided Laser Ablation

Intervention Type DEVICE

All subjects will undergo MRI-guided laser ablation of the amygdala and hippocampus with the Visualase System.

Interventions

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Visualase MRI-Guided Laser Ablation

All subjects will undergo MRI-guided laser ablation of the amygdala and hippocampus with the Visualase System.

Intervention Type DEVICE

Other Intervention Names

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Visualase System Visualase procedure Laser interstitial thermal therapy Stereotactic laser ablation

Eligibility Criteria

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Inclusion Criteria

* History of drug-resistant mesial temporal lobe epilepsy (MTLE)
* If the subject has a vagus nerve stimulator (VNS), must have failed to achieve sustained seizure freedom with the VNS implanted for at least 6 months
* On stable antiepileptic drugs (AEDs) (and/or stable VNS setting, if applicable) and compliant with medication use
* An average of at least 1 complex partial or secondarily generalized seizure compatible with MTLE per month
* Seizure symptoms and/or auras compatible with MTLE
* Video EEG shows evidence of seizures from one temporal lobe consistent with MTLE
* MRI has evidence consistent with mesial temporal lobe sclerosis
* Willing and able to remain on stable AEDs (and stable VNS setting, if applicable) for 12 months following the Visualase procedure
* Willing and able to comply with protocol requirements
* Able to complete study assessments in English or Spanish language

Exclusion Criteria

* Unwilling or unable to sign the study informed consent form
* Pregnant or intends to become pregnant during the course of the study
* Currently implanted with a device contraindicating MRI
* Progressive brain lesions and/or tumors not associated with epileptic disease state
* History of previous intracranial surgery for treatment of epileptic seizures
* Persistent extra-temporal or predominant contralateral focal interictal spikes or slowing, or generalized interictal spikes on EEG
* Seizures with contralateral or extra-temporal ictal onset on EEG
* Aura and/or ictal behavior suggest an extra-temporal focus
* MRI evidence of epileptogenic, extra-temporal lesions, dual pathology in the temporal lobe, or contralateral hippocampal MRI increased signal and/or loss of architecture
* If additional testing has been performed, results are discordant with the seizure focus scheduled for ablation
* Non-compliance with AED requirements
* IQ \< 70
* Dementia or other progressive neurological disease
* Unstable major psychiatric illness, psychogenic non-epileptic seizures, or medical illness that would contraindicate the Visualase procedure or affect the neuropsychological assessments
* Participation in other research that may potentially interfere with SLATE endpoint(s)
* Allergy to gadolinium
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MedtronicNeuro

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Robert Gross, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Emory University

Michael Sperling, MD

Role: PRINCIPAL_INVESTIGATOR

Thomas Jefferson University

Locations

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Hoag Memorial Hospital Presbyterian

Newport Beach, California, United States

Site Status

Stanford University

Palo Alto, California, United States

Site Status

University of California, San Francisco

San Francisco, California, United States

Site Status

University of Colorado Anschutz Medical Campus

Aurora, Colorado, United States

Site Status

University of Miami

Miami, Florida, United States

Site Status

Emory University

Atlanta, Georgia, United States

Site Status

University of Chicago

Chicago, Illinois, United States

Site Status

Indiana University

Indianapolis, Indiana, United States

Site Status

University of Louisville Hospital

Louisville, Kentucky, United States

Site Status

Johns Hopkins University

Baltimore, Maryland, United States

Site Status

Henry Ford Health System

Detroit, Michigan, United States

Site Status

Mayo Clinic

Rochester, Minnesota, United States

Site Status

Dartmouth-Hitchcock Medical Center

Lebanon, New Hampshire, United States

Site Status

Rutgers University - Robert Wood Johnson Medical School

New Brunswick, New Jersey, United States

Site Status

Northwell Health

Great Neck, New York, United States

Site Status

Columbia University Medical Center

New York, New York, United States

Site Status

Wake Forest Baptist Health

Winston-Salem, North Carolina, United States

Site Status

Ohio Health Research Institute

Columbus, Ohio, United States

Site Status

Oregon Health & University Science

Portland, Oregon, United States

Site Status

Thomas Jefferson University

Philadelphia, Pennsylvania, United States

Site Status

The University of Texas Health Science Center at Houston

Houston, Texas, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

University of Washington Harborview

Seattle, Washington, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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CS-05000

Identifier Type: -

Identifier Source: org_study_id

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