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Controlled Randomized Stimulation Versus Resection (CoRaStiR)

Not Applicable
Completed
Conditions
Epilepsy
Interventions
Procedure: amygddohyppocampertomy
Device: Implantation of an intracranial electrode
Registration Number
NCT00431457
Lead Sponsor
University Hospital, Ghent
Brief Summary

Patients will be prospectively randomized to 3 different treatment arms:

* Treatment group 1: patients who undergo medial temporal lobe resection

* Treatment group 2: patients who receive immediate hippocampal neurostimulation

* Treatment group 3: patients who are implanted with an intracranial electrode but in whom hippocampal neurostimulation is delayed for 6 months.

Twelve months after inclusion unblinding will occur. Patients in group 2 and 3 will have the option to choose between continuing neurostimulation treatment or resective surgery.

Study visits will occur every 3 months.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
12
Inclusion Criteria
  • Presurgical candidates with pharmacoresistant partial seizures despite optimal medical treatment and history of temporal lobe epilepsy
  • Age above 18 years
  • TIQ > 80
  • Able to give informed consent
  • Average of 2 partial seizures per month during a baseline of 3 months. Recording of seizures must have been done in a prospective manner using standard seizure diaries.
  • Able to adequately report seizure frequencies using standard seizure diaries
  • Video-EEG characteristics showing temporal lobe seizure onset (left-sided or right-sided seizure onset) in at least one recorded habitual seizure
  • Presence of a structural abnormality in the medial temporal lobe, suggestive of hippocampal sclerosis as evidenced by optimum MRI
  • Women of child-bearing age will be required to use a reliable method of contraception during the study duration
Exclusion Criteria
  • Extratemporal epilepsy; multifocal epilepsy; evidence of bilateral medial temporal lobe epilepsy
  • MR evidence of potentially epileptogenic lesions outside the medial temporal lobe such as dysplasias, tumours or cavernomas
  • Prior resective intracranial surgery
  • Patients who are candidates for invasive video-EEG recording or have previously been investigated with invasive video-EEG recording
  • Patients who previously underwent any other type of neurostimulation for treating epilepsy
  • Patients who are unable to fill in questionnaires and comply with protocol requirements
  • Progressive neurological or medical conditions
  • Medical or psychiatric conditions precluding surgery or compliance
  • Patients taking antidepressant medication
  • Pregnancy at study onset
  • Previous (within the last 3 months), ongoing or planned participation in other treatment study protocols for epilepsy
  • Contraindication for intracranial surgery

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Resective surgery: amygddohyppocampertomyamygddohyppocampertomy-
Implantation intracranial electrode without stimulationImplantation of an intracranial electrode-
Implantation intracranial electrode with immediate stimulationImplantation of an intracranial electrode-
Primary Outcome Measures
NameTimeMethod
To assess whether stimulation and/or resection produces a reduction in mean monthly seizure frequency that is greater than in the control group over 6 months of follow-up.6 months
To assess whether stimulation produces a reduction in mean monthly seizure frequency that is comparable to resection at 6 and 12 months of follow-up.at 6 and 12 months of follow-up
Secondary Outcome Measures
NameTimeMethod
To assess whether stimulation yields better neuropsychological outcome compared to resection at 12 months of follow-up.at 12 months of follow-up
mean seizure free interval during 3 month intervals3 month intervals
seizure severity and seizure type during 3-month intervals3-month intervals
quality of life: changes in QOLIE 89 score at 6 and 12 monthsat 6 and 12 months
responder rates during 3 month intervals3 months intervals
Operative and postoperative complications and long-term side effectsduring twelve months after inclusion
Safety Objectives:during twelve months after inclusion
mood assessment: changes in Beck depression scale scores at 6 and 12 monthat 6 and 12 month

Trial Locations

Locations (3)

UKB Universitätsklinikum Bonn

🇩🇪

Bonn, Germany

University Hospital Ghent

🇧🇪

Ghent, Belgium

Universitätsklinikum Freiburg

🇩🇪

Freiburg, Germany

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