- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02509338
Validation of the Implantation of a New Electrode for the Treatment of Dystonia (MONOCONTACT)
Validation of an Electrode Internal Globus Pallidum Deep Brain Stimulation Lead Implantation for Treatment of Dystonia
Study Overview
Status
Intervention / Treatment
Detailed Description
Deep brain stimulation (DBS) is a validated therapy for treating dystonia and other movement disorders. The main therapeutical target used for treating dystonic syndromes is the internal globus pallidum (GPi). Given the morphology and the topography of this nucleus and, based on the experience of an efficient therapy by using only one or two contacts out of the available four contacts of the standard DBS lead, we designed two new electrodes, one one contact-electrode and one two contact-electrodes, with the aim to limit side effects related to internal globus pallidum DBS and to provide a more homogeneous electric field around the electrode within the GPi and maintaining the same therapeutical outcome.
The main objective of the trial is to study the technical feasibility of the implantation of a new one contact-electrode (Monopolar DBS Lead Model 09064-40cm) for treating isolated generalized/segmental dystonia or tardive dystonia.
The second main objective of the study is to assess the safety of the implantation of the new device.
The secondary objective is to explore the therapeutical effect of DBS using the new monocontact electrode and to study the electrical field generated around the monocontact electrode within the GPi.
The study is prospective and patients are recruited from a Tertiary Movement Disorders Clinic. Seven subjects will be recruited for the study.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Montpellier, France, 34295
- CHRU Montpellier
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age superior to 18 years and inferior to 65 years
- Generalized or segmental isolated dystonia or tardive dystonia
- Diagnosis is based on history, clinical examination, check-up without abnormalities and normal brain MRI allowing exclusion of secondary and degenerative dystonias
- Unsufficient response to pharmacological treatment (improvement < 30/% on clinical dystonia scales)
- No comorbidity interfering with general anesthesia, or representing contraindication for neurosurgical procedure or with the follow-up during the trial
- Consent of the patient
- Insurance affiliation
- Follow-up possible for 12 months
- Available insurance for the operated patient
Exclusion Criteria:
- No possibility for clinical follow-up
- Acquired dystonia except for tardive dystonia
- MRI or generalized anesthesia contraindicated
- Anticoagulant treatment or antiaggregant treatment
- Pregnancy
- Ongoing participation to another clinical trial
- Guardianship or Trusteeship
- Person deprived of liberty
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Electrode deep brain stimulation
Monocontact electrode deep brain stimulation
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Deep brain stimulation surgery with implantation of one contact-electrode deep brain stimulation electrodes bilaterally in the internal globus pallidum for treating dystonia
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Technical feasibility of new electrode implantation
Time Frame: One year
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The feasibility of the implantation is evaluated by stereotaxic frame placement, site of incision, burr hole size and location, technique for insertion, connection with the extension cables to the neurostimulator, measure of the impedances, duration of the surgery, MRI control for lead position, comparison of the artefacts of the leads with the artefacts of the standard electrodes.
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One year
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Safety of new electrode implantation (evaluated by the occurence of side effects)
Time Frame: One year
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The safety of the implantation is evaluated by the occurence of side effects after the implatation and along the follow-up.
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One year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
clinical effect of deep brain stimulation using one contact-electrodes (Burke Fahn Marsden's dystonia rating scale and the Toronto Western Spasmodic Torticollis Rating Scale)
Time Frame: One year
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Clinical change as measured by the decrease of the motor and disability of the patient (Burke Fahn Marsden's dystonia rating scale and the Toronto Western Spasmodic Torticollis Rating Scale).
|
One year
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Laura A CIF, MD, PhD, CHRU Montpellier
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
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
- 9053
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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