Safety Study Using Transcranial MR Guided Focused Ultrasound in the Treatment of Neuropathic Pain

NCT ID: NCT01699477

Last Updated: 2012-10-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-08-31

Study Completion Date

2013-12-31

Brief Summary

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The aim of this study is to asses the efficacy and the clinical safety of the transcranial magnetic resonance guided high intensity focused ultrasound system ExAblate 4000, InSightec Ltd. for functional neurosurgery. The treatments to be conducted in this study are non-invasive, i.e. without opening the skull, and will create micro-thalamotomies in specific target areas such as thalamus, subthalamus and pallidum. The data obtained in this study will be used to evaluate the basic safety aspects of this new treatment technology and will serve as a basis for the clinical introduction of MR-guided ultrasound-neurosurgery.

Detailed Description

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Conditions

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Functional Brain Disorders /Neuropathic Pain

Keywords

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FUS focused ultrasound functional brain disorders neuropathic pain movement disorders

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Trancranial MRg Focused Ultrasound for Neuropatic Pain

Group Type OTHER

ExAblate 4000 focused ultrasound brain intervention

Intervention Type DEVICE

Non-invasive brain intervention using MR-guided focused ultrasound

Interventions

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ExAblate 4000 focused ultrasound brain intervention

Non-invasive brain intervention using MR-guided focused ultrasound

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Male and female patients 18 years and older
2. Clinical indication for a medial thalamotomy
3. Stereotactic targets within thalamus, subthalamus and pallidum
4. All targets supposedly accessible by TcMRgFUS
5. Physically and mentally able to understand the risks of participating in this study and to give written informed consent based on the patient information provided
6. Sufficient proficiency in one of the languages German, French, Italian or English to al-low for verbal communication during all phases of the study
7. Physically and mentally able to communicate the personal condition and all feelings during the TcMRgFUS treatment
8. Physically and mentally able to undergo the TcMRgFUS treatment

Exclusion Criteria

1. Anomalies of brain anatomy, especially in or around thalamus or pallidum that will in-fluence the atlas-based navigation
2. Existing lesions in close proximity (\<5mm) to planned ablation targets
3. Extended anomalies of scalp such as scars, inflammations, etc.
4. Clips or other implanted objects close to (\< 3cm) target
5. Non-MRI-compatible cardiac pacemaker
6. Previous hemorrhages in the brain
7. Uncontrolled arterial hypertension
8. Any coagulopathy or patient under anticoagulant therapy
9. Sensitivity to MRI contrast agents
10. Contraindications to MRI such as non-MRI-compatible implanted devices
11. Large patients not fitting comfortably into the MRI unit (generally \>110kg)
12. Difficulty to lie supine and still for up to 4 hours in the MRI unit or claustrophobia
13. Other known life-threatening systemic disease
14. Patients currently participating or participated in another clinical trial in the last 30 days
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Children's Hospital, Zurich

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ernst - Martin, MD

Role: PRINCIPAL_INVESTIGATOR

University Children's Hospital, Zurich

Ronald - Bauer, MD

Role: PRINCIPAL_INVESTIGATOR

Neurosurgery, Kantonsspital St. Gallen, Switzerland

Gunther - Landmann, MD

Role: PRINCIPAL_INVESTIGATOR

Center for Pain Medicine, Nottwil, Switzerland

Locations

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MR-Center, University Children's Hospital

Zurich, Canton of Zurich, Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Ernst - Martin, MD

Role: CONTACT

Phone: +41 44 266 7111

Email: [email protected]

Beat - Werner, MSc

Role: CONTACT

Phone: +41 44 266 7111

Email: [email protected]

Facility Contacts

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Ernst - Martin, MD

Role: primary

Ronald - Bauer, MD

Role: backup

Other Identifiers

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E-04/2008

Identifier Type: -

Identifier Source: org_study_id