- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06105645
Contribution of Fast-ripples to the Improvement of the Neurosurgical Management of Drug-refractory Epilepsy (NENUFAR)
The main aim of this study is to evaluate the contribution of fast-ripples (FR) information on the neurosurgery management of patients with drug-refractory epilepsy investigated by Stereo-ElectroEncephaloGraphy (SEEG), as measured by freedom from disabling seizures one-year post-surgery.
220 patients (for whom 4-6 usual clinical macro-electrodes will be replaced by hybrid micro-macro electrodes and for whom fast-ripples will be assessed) distributed over 5 centres and 220 control patients(who will undergo an SEEG with the usual electrodes and for whom fast-ripples will not be assessed) distributed over 6 centres. This is a controlled, non-randomized, parallel plan, prospective, multicentre exploratory study.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Luc VALTON, MD
- Phone Number: +33 0561775608
- Email: valton.l@chu-toulouse.fr
Study Contact Backup
- Name: Yoan HERADES
- Email: yoan.herades@inserm.fr
Study Locations
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-
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Toulouse, France, 31059
- University Hospital of Toulouse
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Principal Investigator:
- Luc VALTON, MD
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Contact:
- Luc VALTON, MD
- Phone Number: 0561775608
- Email: valton.l@chu-toulouse.fr
-
Contact:
- Yoan HERADES
- Email: yoan.herades@inserm.fr
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Patient suffering from drug-resistant focal epilepsy (DRFE), as defined by the International League Against Epilepsy, undergoing SEEG, the indication of which was selected during a multidisciplinary epilepsy meeting
- Patient who has given written informed consent to allow the study data collection procedures
- Patient covered by the French healthcare system.
Exclusion Criteria:
- Patients under juridical protection (authorship, curators or safeguarding of justice).
- Patient deprived of liberty by a judicial or administrative decision
- Patient with a cardiac defibrillator
- Thermocoagulation planned on one of the potential hybrid electrodes .
- Patient in exclusion period of another study.
- No other non-inclusion criteria since the study will only be proposed to patients who already meet the criteria for a SEEG
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Arm with fast-ripples information
Patients for whom 4-6 usual clinical macro-electrodes will be replaced by hybrid micro-macro electrodes and for whom fast-ripples will be assessed
|
It is a deep intracerebral electrode used in the pre-surgical diagnosis of certain drug-resistant epilepsies.
It consists of micro- and macro-contacts and is designed for Stereo-ElectroEncephalography (SEEG) recording via the macro-contacts or micro-contacts and brief stimulation via the macro-contacts.
|
Active Comparator: Arm without fast-ripples information
Patients who will undergo an SEEG with the usual electrodes and for whom fast-ripples will not be assessed.
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Standard electrodes used usually during the SEEG
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Contribution of fast-ripples information on freedom seizures
Time Frame: 12 months after epilepsy surgery
|
Proportion of patients with Engel class I after one-year post-surgery in the group of patients with information of fast-ripples compared to patients without.
|
12 months after epilepsy surgery
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Contribution of fast-ripples information on improvement of epilepsy
Time Frame: 12 months after epilepsy surgery
|
Proportion of patients with Engel classes I to III one-year post-surgery of patients with information of fast-ripples compared to patients without.
|
12 months after epilepsy surgery
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Contribution of fast-ripples information on patients addressed to neurosurgery
Time Frame: 12 months after epilepsy surgery
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Proportion of patients operated for their epilepsy in the group of patients with information of fast-ripples compared to patients without.
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12 months after epilepsy surgery
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Adverse effects related to Stereo-electroencephalography
Time Frame: Day 0 (SEEG visit)
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Quantitative and qualitative description of adverse effects related to the Stereo-electroencephalography (SEEG) in the group of patients with information of fast-ripples compared to patients without.
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Day 0 (SEEG visit)
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Adverse effects of epilepsy surgery
Time Frame: 6 months after surgical decision
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Quantitative and qualitative description of adverse effects related to epilepsy surgery in the group of patients with information of fast-ripples compared to patients without.
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6 months after surgical decision
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Adverse effects of hybrid electrodes
Time Frame: Day 0 (SEEG visit)
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Quantitative and qualitative description of adverse effects related to the hybrid electrodes.
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Day 0 (SEEG visit)
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Post-operative neurological deficit
Time Frame: 12 months after epilepsy surgery
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Number of patients suffering from disabling post-operative neurological deficit, anxiety or depression in the group of patients with information of fast-ripples versus patients without
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12 months after epilepsy surgery
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Evolution of quality of life using the score of Quality of life Epilepsy Inventory Epilepsy Inventory
Time Frame: 12 months after epilepsy surgery
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Delta of quality of life using the score of Quality of life Epilepsy Inventory (QOLIE-31) between baseline and 12 months related to epilepsy surgery in the group of patients with information of fast-ripples compared to patients without. QOLIE-31 is a 31-item questionnaire with different proposal scores. The maximal total score is 100 : the higher the score, the better the quality of life |
12 months after epilepsy surgery
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Level of satisfaction
Time Frame: 12 months after epilepsy surgery
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Mean of level of satisfaction with the outcome of epilepsy surgery assessed using the Evaluation of changes in daily life after epilepsy surgery (EVOCQUE) self-questionnaire, 12 months after surgery, related to epilepsy surgery in the group of patients with information of fast-ripples compared to patients without. EVOCQUE is a self-questionnaire with ten different questions and proposal scores. |
12 months after epilepsy surgery
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Recording of fast-ripples
Time Frame: Day 0 (SEEG visit)
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Number of fast-ripples recorded on the hybrid electrodes, on the one hand on the micro- contacts and on the other hand on the adjacent macro-contacts of the same hybrid electrode.
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Day 0 (SEEG visit)
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Distribution of the fast-ripples
Time Frame: Day 0 (SEEG visit)
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Number of fast-ripples in the Epileptogenic Zone, Irritative Zone and healthy zone
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Day 0 (SEEG visit)
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Number of fast-ripples recorded according to the period
Time Frame: Day 0 (SEEG visit)
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Number of fast-ripples recorded during one period of sleep, an equivalent period of nap and an equivalent period of sitcom watching.
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Day 0 (SEEG visit)
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Luc VALTON, MD, University Hospital, Toulouse
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- RC31/22/0260
- 2022-A02552-41 (Other Identifier: ID-RCB)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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