- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03738072
Intracerebral Electrical Stimulation and the Optimisation of Presurgical Planning in Drug-refractory Partial Epilepsy (StiMiC)
A Study of the Effect of Intracerebral Electrical Stimulation on the Optimisation of Presurgical Planning in Drug-refractory Partial Epilepsy (StiMiC)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Patients with drug-refractory epilepsy sometimes need to be implanted with intracerebral electrodes in order to identify their seizure onset zone. During this procedure, direct brain electrical stimulations is a standard clinical practice to assess seizure sensitivity and for functional mapping. However the efficiency of these stimulations can be questioned and could potentially be improved. Indeed, only two typical frequencies are commonly used in our epilepsy centre, 1Hz and 50Hz, without clear clinical or scientific justification for these specific frequencies.
This study aims at assessing if extending the range of stimulation frequencies of the usual clinical frequencies could improve the definition of the seizure onset zone and hence the presurgical planning. We will maintain the usual stimulation frequencies (standard clinical stimulations condition) and add new frequencies to the protocol (research stimulations condition). The choice of these new frequencies will be based either on the spontaneous frequency of the onset of the patients' typical seizures or on physiological frequencies depending on the brain structures stimulated (i.e., theta in the medial temporal lobe).
The protocol will be proposed to all patients undergoing a stereo-electro-encephalography (SEEG) in our epilepsy center and the efficiency of the two conditions (standard clinical stimulations condition vs research stimulations condition) will be compared. The efficiency will be assessed as any epileptic event, recorded in the intracerebral EEG or symptom induced by the stimulations. This project will last 36 months. 20 patients will be included.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Jonathan Curot, MD
- Phone Number: 33 05 61 77 56 08
- Email: curot.j@chu-toulouse.fr
Study Locations
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Toulouse, France, 3100
- Recruiting
- CHU de Toulouse
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Contact:
- Jonathan Curot, MD
- Email: curot.j@chu-toulouse.fr
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Contact:
- Marie Denuelle, MD
- Email: denuelle.m@chu-toulouse.fr
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- all patients undergoing a stereo-electro-encephalography (SEEG), age 12 to 65 years old.
Exclusion Criteria:
- usual excluding criteria for a SEEG.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: StiMic stimulation condition
StiMic stimulation condition will be evaluate during stereo-electro-encephalography and this condition will be compare to standard stimulation condition
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This new condition of stimulation of electrical Brain Stimulation will be evaluate to determine if this stimulation is more efficient that standard stimulation condition
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparison of the index of efficient stimulation between standard clinical stimulation condition and StiMic stimulation condition
Time Frame: 22 days after implantation of electrode
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Comparison for each patient of the index of efficient stimulations (assessed as any stimulation having yielded an electrical or clinical effect over the total number of stimulations) for each condition (standard clinical stimulations condition vs research stimulations condition).
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22 days after implantation of electrode
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
efficient stimulation for each frequency of stimulation
Time Frame: 22 days after implantation of electrode
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Distribution of efficient stimulations (assessed as any stimulation having yielded an electrical or clinical effect) for each frequency of stimulation.
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22 days after implantation of electrode
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efficient stimulation for each type of brain area stimulated
Time Frame: 22 days after implantation of electrode
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Distribution of efficient stimulations (assessed as any stimulation having yielded an electrical or clinical effect) for each type of brain area stimulated (i.e, anatomical brain area, seizure onset zone, primary seizure propagation zone, healthy brain area or lesion).
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22 days after implantation of electrode
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percentage change in the neuronal discharge rate
Time Frame: 30 second after stimulation
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Percentage change in the neuronal discharge rate 30 seconds after the stimulation compared to the 30 seconds before the stimulation, depending on the frequency of stimulations.
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30 second after stimulation
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percentage change in the neuronal discharge rate for stimic stimulation condition
Time Frame: 30 second after stimulation
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Percentage change in the neuronal discharge rate 30 seconds after the stimulation compared to the 30 seconds before the stimulation, depending on the effect of the stimulation (electrical or clinical as defined in the primary outcome)
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30 second after stimulation
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jonathan Curot, MD, CHU of Toulouse
Study record dates
Study Major Dates
Study Start (Actual)
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- RC31/17/0345
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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