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Laser Ablation of Abnormal Neurological Tissue Using Robotic NeuroBlate System

Laser Ablation of Abnormal Neurological Tissue Using Robotic NeuroBlate System (LAANTERN) Prospective Registry

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02392078
Acronym
LAANTERN
Enrollment
1153
Registered
2015-03-18
Start date
2015-10-31
Completion date
2023-09-30
Last updated
2025-04-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epileptic/Seizure Foci, Metastatic Brain Tumor, Movement Disorders, Primary Brain Tumor

Keywords

Procedural Success, Progression, Quality of Life, Seizure Freedom, Progression Free Survival, Overall Survival

Brief summary

The NeuroBlate® System (NBS) is a minimally invasive robotic laser thermotherapy tool that is being manufactured by Monteris Medical. Since it received FDA clearance in May 2009, the NBS has been used in over 2600 procedures conducted at over 70 leading institutions across United States. This is a prospective, multi-center registry that will include data collection up to 5 years to evaluate safety, QoL, and procedural outcomes including local control failure rate, progression free survival, overall survival, and seizure freedom in up to 3,000 patients and up to 50 sites.

Interventions

Sponsors

Monteris Medical
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Subject or legally authorized representative provides written authorization and/or consent 2. Subject who is to undergo thermal therapy by the NeuroBlate® System for treatment of their neurological disorder

Exclusion criteria

1. Subject who is, or is expected to be inaccessible for follow-up 2. Other concurrent medical or other condition (chronic or acute in nature) that in the opinion of the investigator, may prevent participation or otherwise render subject ineligibility for the study

Design outcomes

Primary

MeasureTime frameDescription
Safety (Reportable Adverse Events)up to 5 years or last follow upSafety profile described by the NBS and surgical-related AEs
Reason for NeuroBlateIndex procedureTo identify the primary reason the NeuroBlate system was chosen for subject
Number of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)up to 5 years or last follow upCollected for all subjects by disease etiology. Seizure freedom assessed for all subjects with epilepsy at time of last follow-up. The ENGEL surgical outcome scale is composed of four classes of epilepsy (Class I (best), Class II, Class III, Class IV (worst)) categorized by severity. The ILAE outcome scale contains six classes (Class 1 (best), 2, 3, 4, 5, 6 (worst)) categorized by severity.
Change in Quality of Lifeup to 5 years or last follow-upAssessed with following questionnaires: 1. KPS (malignancy subjects only) Scale range 0-100 measuring the ability of patients with cancer to perform ordinary daily activities. Score 0 is dead, 100 is no disease symptoms 2. FACT-Br (malignancy subjects only) Measure general quality of life across 5 scales- physical well-being, social/family well-being, emotional well-being, functional well-being & other. Higher score, better quality of life. Range 0-200 3. EQ-5D (tumor/epilepsy subjects only) Measure of health consisting of the descriptive system & the visual analogue scale (VAS). The system assesses subject mobility, self-care, usual activities, pain/discomfort & anxiety/depression. Higher score, better quality of life. Range 0-100 4. QOLIE-31 (epilepsy subjects only) 7 scales assessing emotional well-being, social functioning, energy/fatigue, cognitive functioning, seizure worry, medication effects, & overall quality of life. Higher score, better quality of life. Range 0-100
Number of Patients Demonstrating Local Control and Overall Survivalup to 5 years or last follow upCollected for all subjects by disease etiology. Local control as measured by time to local tumor recurrence. Overall survival assessed by Kaplan-Meier method.

Countries

United States

Participant flow

Participants by arm

ArmCount
Metastatic Tumor
All eligible study subjects who presented with a metastatic brain tumor.
342
Primary Tumor
All eligible study subjects who presented with a primary brain tumor.
445
Epilepsy
All eligible study subjects who presented with epilepsy or seizure foci.
268
Movement Disorder
All eligible study subjects who presented with a movement disorder.
2
Total1,057

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyDid not have procedure3243201

Baseline characteristics

CharacteristicMetastatic TumorPrimary TumorEpilepsyMovement DisorderTotal
Age, Customized61.9 years53.7 years33.9 years66.9 years54.7 years
Ethnicity (NIH/OMB)
Hispanic or Latino
14 Participants23 Participants37 Participants0 Participants74 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
325 Participants416 Participants225 Participants2 Participants968 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants6 Participants6 Participants0 Participants15 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Asian
4 Participants9 Participants5 Participants0 Participants18 Participants
Race (NIH/OMB)
Black or African American
39 Participants19 Participants21 Participants0 Participants79 Participants
Race (NIH/OMB)
More than one race
2 Participants1 Participants5 Participants0 Participants8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
8 Participants9 Participants15 Participants0 Participants32 Participants
Race (NIH/OMB)
White
288 Participants406 Participants222 Participants2 Participants918 Participants
Region of Enrollment
United States
342 participants445 participants268 participants2 participants1057 participants
Sex: Female, Male
Female
205 Participants191 Participants139 Participants1 Participants536 Participants
Sex: Female, Male
Male
137 Participants254 Participants129 Participants1 Participants521 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
367 / 1,057
other
Total, other adverse events
169 / 1,057
serious
Total, serious adverse events
31 / 1,057

Outcome results

Primary

Change in Quality of Life

Assessed with following questionnaires: 1. KPS (malignancy subjects only) Scale range 0-100 measuring the ability of patients with cancer to perform ordinary daily activities. Score 0 is dead, 100 is no disease symptoms 2. FACT-Br (malignancy subjects only) Measure general quality of life across 5 scales- physical well-being, social/family well-being, emotional well-being, functional well-being & other. Higher score, better quality of life. Range 0-200 3. EQ-5D (tumor/epilepsy subjects only) Measure of health consisting of the descriptive system & the visual analogue scale (VAS). The system assesses subject mobility, self-care, usual activities, pain/discomfort & anxiety/depression. Higher score, better quality of life. Range 0-100 4. QOLIE-31 (epilepsy subjects only) 7 scales assessing emotional well-being, social functioning, energy/fatigue, cognitive functioning, seizure worry, medication effects, & overall quality of life. Higher score, better quality of life. Range 0-100

Time frame: up to 5 years or last follow-up

Population: The questionnaires are only applicable to certain cohorts in the study population and were not collected or analyzed for subjects who were not in that cohort.

ArmMeasureGroupValue (MEDIAN)
Number of ParticipantsChange in Quality of LifeKPS90 score on a scale
Number of ParticipantsChange in Quality of LifeFACT Br149 score on a scale
Number of ParticipantsChange in Quality of LifeEQ-5D80 score on a scale
Primary Brain TumorChange in Quality of LifeFACT Br149 score on a scale
Primary Brain TumorChange in Quality of LifeEQ-5D80 score on a scale
Primary Brain TumorChange in Quality of LifeKPS80 score on a scale
Epileptic/Seizure FociChange in Quality of LifeQOLIE-3165.3 score on a scale
Epileptic/Seizure FociChange in Quality of LifeEQ-5D80 score on a scale
Primary

Number of Patients Demonstrating Local Control and Overall Survival

Collected for all subjects by disease etiology. Local control as measured by time to local tumor recurrence. Overall survival assessed by Kaplan-Meier method.

Time frame: up to 5 years or last follow up

Population: Data not collected for various cohorts because they were not applicable to the end points associated with those cohorts disease state.

ArmMeasureGroupValue (MEDIAN)
Number of ParticipantsNumber of Patients Demonstrating Local Control and Overall SurvivalLocal Control: Median time from procedure to tumor progression (years)3.44 Median (in years)
Number of ParticipantsNumber of Patients Demonstrating Local Control and Overall SurvivalOverall Survival: Median time from diagnosis to death (years)4.69 Median (in years)
Primary Brain TumorNumber of Patients Demonstrating Local Control and Overall SurvivalLocal Control: Median time from procedure to tumor progression (years)3.26 Median (in years)
Primary Brain TumorNumber of Patients Demonstrating Local Control and Overall SurvivalOverall Survival: Median time from diagnosis to death (years)4.27 Median (in years)
Primary

Number of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)

Collected for all subjects by disease etiology. Seizure freedom assessed for all subjects with epilepsy at time of last follow-up. The ENGEL surgical outcome scale is composed of four classes of epilepsy (Class I (best), Class II, Class III, Class IV (worst)) categorized by severity. The ILAE outcome scale contains six classes (Class 1 (best), 2, 3, 4, 5, 6 (worst)) categorized by severity.

Time frame: up to 5 years or last follow up

Population: Data not collected for various cohorts because they were not applicable to the end points associated with those cohorts disease state.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 225 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ENGEL I88 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ENGEL II34 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ENGEL III29 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ENGEL IV21 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ENGEL Not Provided96 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 158 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 331 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 436 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 516 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE 64 Participants
Epileptic/Seizure FociNumber of Patients Demonstrating Seizure Freedom (ENGEL and ILAE Classifications)ILAE Not Provided98 Participants
Primary

Reason for NeuroBlate

To identify the primary reason the NeuroBlate system was chosen for subject

Time frame: Index procedure

ArmMeasureGroupValue (NUMBER)
Number of ParticipantsReason for NeuroBlateMinimally Invasive Preferred702 participants
Number of ParticipantsReason for NeuroBlateNon-Resectable186 participants
Number of ParticipantsReason for NeuroBlateSubject exceeded max dose or could not tolerate radiation24 participants
Number of ParticipantsReason for NeuroBlateSubject not a candidate for craniotomy31 participants
Number of ParticipantsReason for NeuroBlatePalliative7 participants
Number of ParticipantsReason for NeuroBlateOther139 participants
Number of ParticipantsReason for NeuroBlateUnknown37 participants
Primary

Safety (Reportable Adverse Events)

Safety profile described by the NBS and surgical-related AEs

Time frame: up to 5 years or last follow up

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Number of ParticipantsSafety (Reportable Adverse Events)Anxiety1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Hypertension1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)None888 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Aphasia7 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Ataxia or loss of body coordination2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Bleeding or increased risk of bleeding into or around the brain30 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Blurry vision/visual disturbance/Permanent neuro deficit3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Cerebral edema/Edema21 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Cerebral infarction1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Complete or incomplete hemiparesis2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Deep venous thrombsois2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Difficulty speaking5 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Difficulty walking3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Headache3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Infection or increased risk of infection, local or generalized6 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Injury to brain tissue2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Muscle weakness15 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Nausea/vomiting1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Nerve Paralysis/Paralysis3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Personality or cognitive changes (e.g. mood, memory, attention and thinking ability)3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Pneumonia3 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Pulmonary or other air embolism7 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Seizure/Increased seizures frequency, duration or severity19 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Status epilepticus1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Stroke or transient ischemic attack (TIA)2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Tingling or numb sensations in the body1 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Wound dehiscence2 Participants
Number of ParticipantsSafety (Reportable Adverse Events)Other23 Participants

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026