CClinicalTrials.gg
TerminatedNCT02820740Updated Jul 12, 2024Results posted

Feasibility Study on LITT for Medical Refractory Epilepsy

An interventional study of NeuroBlate System in Epilepsy, sponsored by Monteris Medical. Terminated at 5 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-12.

Sponsored by Monteris Medical · Not applicable, Interventional, and Treatment

Why this study was terminated
Terminated (failure to enroll)
Phase
Not applicable
Study type
Interventional
Enrollment
4
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Multicenter, open-label, prospective designed study to characterize the performance of brain laser interstitial thermal therapy (LITT) ablation using the Monteris NeuroBlate System for the treatment of drug-refractory medial temporal lobe epilepsy in subjects who are candidates for LITT surgery.

Read the detailed description

Monteris is sponsoring this multicenter, open-label, prospective feasibility study to characterize the performance of laser interstitial thermal therapy (LITT) using the Monteris NeuroBlate System for the treatment of drug-refractory medial temporal lobe epilepsy in subjects who are candidates for LITT surgery.

The NeuroBlate System uses precise, high-intensity laser light to initiate necrosis of abnormal brain tissue through thermal ablation while limiting injury to healthy tissue. Unlike traditional brain surgery, LITT does not require a large opening in the skull.

Subjects who meet the study eligibility criteria and sign the informed consent form will undergo the LITT procedure. Subjects, or their caregivers, are required to keep a seizure diary throughout the study, beginning after surgery. The study will monitor and record subjects' seizure frequency, antiepileptic medications, and physical and emotional health.

Subjects treated with NeuroBlate will have 2 years of follow-up. Throughout study participation, the study investigator will continuously monitor and document both effectiveness and safety data at study appointments.

02

Conditions studied

  • Epilepsy

Keywords

  • Epilepsy
  • Medial Temporal Lobe Epilepsy
  • Seizure
  • NeuroBlate
  • LITT
  • Quality of Life
03

In context

Epilepsy

1,804 studies on the registry are indexed under Epilepsy; 417 are open to participants now.

This study's enrollment of 4 is below the median of 50 across 1,205 interventional studies indexed under Epilepsy.

Browse Epilepsy studies →

Lead sponsor

Monteris Medical is the lead sponsor of 8 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Relevant Inclusion Criteria are listed below

  • Diagnosis of unilateral medial temporal lobe epilepsy (MTLE) confirmed clinically and with either (1) ictal scalp recording and MRI evidence of mesial temporal sclerosis or (2) intracranial ictal onset consistent with hippocampal origin
  • Averages 1 or more complex partial seizures or secondary generalized seizures compatible with MTLE per month
  • On stable antiepileptic medications
  • Meets the criteria for a medial temporal lobe resection and is a candidate for LITT
  • 18 years or older at the time of consent

Relevant Exclusion Criteria are listed below

  • Previous diagnosis of psychogenic/non-epileptic seizures
  • Previous diagnosis of primary generalized seizures
  • IQ less than 70
  • Subject has a MRI-incompatible implanted electronic device or any metallic prosthesis or implant for which brain MRI is contraindicated
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
4 participants (actual)

Study arms

  • Other
    NeuroBlate LITT Treatment

    This is a single arm study. All eligible study subjects will undergo LITT with the NeuroBlate System.

    Device: NeuroBlate System

Interventions

  • DeviceNeuroBlate System

    Laser Interstitial Thermal Therapy

06

What researchers measure

Primary outcomes

  1. Number of Participants With Adverse Events

    Characterize adverse events experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Adverse events will be collected based on subject reports and subject examination/testing.

    Time frame: 2 Years

  2. Changes in Neuropsychological Functioning

    Characterize changes to neuropsychological functioning experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Descriptive statistics (via neuropsychological assessment tools) will be reported for the measured score at baseline and each follow-up visit.

    Time frame: 1 Year

Secondary outcomes

  1. Changes in Seizure Frequency

    Characterize changes in seizure frequency experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System by utilizing patient diary to evaluate seizure occurrences.

    Time frame: 2 Years

  2. Surgical Outcome Classification

    Characterize the Engel and ILAE surgical outcome classification in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Classifications will be determined by the Investigator. Engel Scale Class I: Free of disabling seizures Class II: Rare disabling seizures Class III: Worthwhile improvement Class IV: No worthwhile improvement ILAE Outcome Scale Class 1: Completely seizure free; no auras Class 2: Only auras; no other seizures Class 3: 1 to 3 seizure days per year; ± auras Class 4: 4 seizure days per year to 50% reduction of baseline seizure days; ± auras Class 5: Less than 50% reduction of baseline seizure days; ± auras Class 6: More than 100% increase of baseline seizure days; ± auras

    Time frame: 2 Years

  3. Changes in Quality of Life

    Characterize the changes in quality of life in subjects with medical temporal lobe epilepsy undergoing LITT using the NeuroBlate System. Quality of life will be measured using the QOLIE-31 (Quality of Life in Epilepsy) questionnaire. Score scale 0-100 with 100 indicating a higher reported quality of life across seven different categories (seizure worry, overall quality of life, social functioning, emotional wellbeing, medication effects, energy/fatigue, and cognitive functioning).

    Time frame: 2 Years

07

Results

Posted Jul 12, 2024
Limitations and caveats
The per-protocol analysis was not completed because the study was terminated early and data was insufficient for analysis.

Participant flow

Participant flow — Overall Study
MilestoneNeuroBlate LITT Treatment
Started4
Completed2
Not completed2
Withdrew: Did not have procedure2

Outcome measures

PrimaryNumber of Participants With Adverse Events

Characterize adverse events experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Adverse events will be collected based on subject reports and subject examination/testing.

Time frame:
2 Years
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events
ParticipantsNeuroBlate LITT Treatment
Number of Participants With Adverse Events2
PrimaryChanges in Neuropsychological Functioning

Characterize changes to neuropsychological functioning experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Descriptive statistics (via neuropsychological assessment tools) will be reported for the measured score at baseline and each follow-up visit.

Time frame:
1 Year
Reported as:
Mean · Time in seconds
Changes in Neuropsychological Functioning
Time in secondsNeuroBlate LITT Treatment
Baseline Trails Making Trial A29.5 (24 to 35)
Baseline Trails Making Trial B66 (47 to 85)
1 Year Trails Making A32.5 (26 to 39)
1 Year Trails Making B59.5 (43 to 76)
SecondaryChanges in Seizure Frequency

Characterize changes in seizure frequency experienced in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System by utilizing patient diary to evaluate seizure occurrences.

Time frame:
2 Years
Reported as:
Median · Number of seizures/month
Changes in Seizure Frequency
Number of seizures/monthNeuroBlate LITT Treatment
Seizures at baseline22 (8 to 34)
Seizures at 24 Months3 (0 to 6)
SecondarySurgical Outcome Classification

Characterize the Engel and ILAE surgical outcome classification in medial temporal lobe epilepsy subjects undergoing LITT using the NeuroBlate System. Classifications will be determined by the Investigator. Engel Scale Class I: Free of disabling seizures Class II: Rare disabling seizures Class III: Worthwhile improvement Class IV: No worthwhile improvement ILAE Outcome Scale Class 1: Completely seizure free; no auras Class 2: Only auras; no other seizures Class 3: 1 to 3 seizure days per year; ± auras Class 4: 4 seizure days per year to 50% reduction of baseline seizure days; ± auras Class 5: Less than 50% reduction of baseline seizure days; ± auras Class 6: More than 100% increase of baseline seizure days; ± auras

Time frame:
2 Years
Reported as:
Number · participants
Surgical Outcome Classification
participantsNeuroBlate LITT Treatment
Engel Class III at 2 years1
Engel Class I at 2 years1
ILAE Class 4 at 2 years1
ILAE Class 1 at 2 years1
SecondaryChanges in Quality of Life

Characterize the changes in quality of life in subjects with medical temporal lobe epilepsy undergoing LITT using the NeuroBlate System. Quality of life will be measured using the QOLIE-31 (Quality of Life in Epilepsy) questionnaire. Score scale 0-100 with 100 indicating a higher reported quality of life across seven different categories (seizure worry, overall quality of life, social functioning, emotional wellbeing, medication effects, energy/fatigue, and cognitive functioning).

Time frame:
2 Years
Reported as:
Median · QOLIE Score (0-100)
Changes in Quality of Life
QOLIE Score (0-100)NeuroBlate LITT Treatment
Baseline QOLIE53.91 (26.14 to 81.68)
24 Month QOLIE57.88 (34.7 to 81.06)

Adverse events

Collected over Adverse events were collected from the time of patient consent (prior to the surgical procedure) to study withdraw/completion, up to 24 months.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
NeuroBlate LITT Treatment0/2 (0%)2/2 (100%)0/2 (0%)
Most frequent serious events
Most frequent serious events
EventNeuroBlate LITT Treatment
TinnitusNervous system disorders1/2
InfectionGastrointestinal disorders1/2

Baseline characteristics

Age, Customized
Age, Customized(years)NeuroBlate LITT Treatment
Age range55 (53 to 57)
Sex: Female, Male
Sex: Female, Male(Participants)NeuroBlate LITT Treatment
Female1
Male1
Race (NIH/OMB)
Race (NIH/OMB)(Participants)NeuroBlate LITT Treatment
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White2
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)NeuroBlate LITT Treatment
United States2
08

Study locations

5 sites
  • St. Joseph's Hospital and Medical Center
    Phoenix, Arizona 85013, United States
  • Yale University School of Medicine
    New Haven, Connecticut 06520, United States
  • University of Kansas Medical Center
    Kansas City, Kansas 66160, United States
  • Mount Sinai West
    New York, New York 10019, United States
  • Medical University of South Carolina
    Charleston, South Carolina 29425, United States
09

References and documents

Study documents

  • Study protocol · Nov 6, 2017
  • Statistical analysis plan · Aug 11, 2017

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02820740
Lead sponsor
Monteris Medical
Responsible party
Sponsor
First posted
Jul 1, 2016
Start date
Apr 21, 2017
Primary completion
Jun 24, 2019
Completion
Jun 24, 2019
Results posted
Jul 12, 2024
Last update
Jul 12, 2024

Study contacts

Dennis Spencer, MD
principal investigator · Yale University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in May 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion