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MRI-Guided Focused Ultrasound Feasibility Study for Brain Tumors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00147056
Recruitment Status : Active, not recruiting
First Posted : September 7, 2005
Last Update Posted : September 8, 2021
Information provided by (Responsible Party):

Brief Summary:
The purpose of this study is to evaluate the safety of MRI-guided focused ultrasound thermal ablation of brain tumors performed through intact human skull using the ExAblate transcranial system. We will collect data to establish the basic safety of this type of treatment as the basis for later studies that will evaluate its clinical efficacy.

Condition or disease Intervention/treatment Phase
Brain Tumor Device: ExAblate transcranial system Not Applicable

Detailed Description:

In this non-randomized feasibility study, FUS under MRI-guidance and thermometry will be given through intact human skull to brain tumor in up to ten (10) subjects. These subjects will be followed over a 3-month period with contrast MRI and clinical exams.

The objectives are:

  1. To evaluate the safety of ExAblate TcMRgFUS treatment delivered through intact human skull to the brain, during the treatment, and during the follow-up period of 3 months.
  2. To evaluate the effect of thermal ablation in the target tumor with contrast MR imaging to identify viable tumor, and non-viable thermally ablated tissue.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 10 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Study to Evaluate the Safety and Feasibility of Transcranial MRI-Guided Focused Ultrasound Surgery in the Treatment of Brain Tumors
Study Start Date : August 2012
Estimated Primary Completion Date : December 2022
Estimated Study Completion Date : December 2022

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Brain Tumors

Arm Intervention/treatment
Experimental: ExAblate transcranial system
MR Guided Focused Ultrasound
Device: ExAblate transcranial system
MRI-Guided Focused Ultrasound Feasibility Study for Brain

Primary Outcome Measures :
  1. Number of subjects with Serious and Non-Serious Adverse Events after MRI Guided Focused ultrasound treatment for brain tumors [ Time Frame: Up to 3 months ]
    To evaluate the safety of ExAblate TcMRgFUS treatment delivered through intact human skull to the brain, during the treatment and during the follow-up period of 3 months.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Men or women.
  2. Age between 18 and 70 years, inclusive.
  3. Able and willing to give informed consent.
  4. Subjects with (newly diagnosed or recurrent) metastatic cancer for whom surgery, radiation, or radiosurgery has not been advised by the treating physician.
  5. The targeted tumor tissue is located in the cerebral hemispheres, > 2.5 cm from the inner table of the skull. Non-targeted parts of the tumor may extend outside the treated tumor limits.
  6. Tumor(s) are clearly defined on pre-therapy contrast enhanced MRI scans.
  7. Size of the targeted portion of the tumor (i.e. prescribed Region Of Treatment) is less than 2.5 cm in diameter or 8 cm3 in volume. The non-targeted tumor tissue may exceed the targeted volume.
  8. Karnofsky rating 70-100 (See Appendix A).
  9. ASA score 1-2.
  10. Able to communicate sensations during the ExAblate MRGFUS procedure.
  11. Able to attend all study visits (i.e. life expectancy of at least 3 months).
  12. At least 14 days passed since last brain surgery, or intracranial radiation therapy/radiosurgery

Exclusion Criteria:

  1. The subject presents with:

    - Symptoms and signs of increased intracranial pressure (e.g., headache, nausea, vomiting, lethargy, and papaedema).

    - Unstable hemodynamic status including: i. Documented myocardial infarction within six months of enrollment. ii.Symptomatic coronary artery stenosis. iii. Congestive heart disease requiring medication. iv. Anti-arrhythmic drug medication. v. Cardiac pacemaker. vi. Severe hypertension (diastolic BP > 100 on medication).

  2. Anti-coagulant therapy, on medications known to increase risk of hemorrhage, (e.g.: non-steroidal anti-inflammatory drugs (NSAIDs), statins
  3. TIA or stroke in the last 1 month
  4. Insulin-dependent diabetes mellitus
  5. Immunosuppression (corticosteroids to prevent brain edema are permitted)
  6. Known sensitivity to gadolinium-DTPA
  7. Contraindications to MRI such as non-MRI-compatible implanted devices
  8. Large subjects not fitting comfortably into the MRI scanner
  9. Difficulty laying supine and still for up to 4 hours in the MRI unit or claustrophobia
  10. Untreated, uncontrolled Sleep apnea
  11. Positive pregnancy test (for pre-menopausal women)
  12. Known life-threatening systemic disease
  13. More than 3 metastatic tumors
  14. History of abnormal bleeding and coagulopathy
  15. Use of Avastin in the preceding two weeks or planned use in the forthcoming two weeks and VEGF inhibitors within + 30 days of treatment
  16. Patients with a history of uncontrolled seizures or who are not on anti seizure medication (e.g., Phenytoin 100 mg PO t.i.d. or Keppra 500 mg po bid) before the procedure

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00147056

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United States, Massachusetts
Brigham and Women's Hospital
Boston, Massachusetts, United States, 02115
United States, Washington
Swedish Medical Center
Seattle, Washington, United States, 98122
Sponsors and Collaborators
Additional Information:
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Responsible Party: InSightec Identifier: NCT00147056    
Other Study ID Numbers: BT002
First Posted: September 7, 2005    Key Record Dates
Last Update Posted: September 8, 2021
Last Verified: August 2021
Keywords provided by InSightec:
Brain tumor
Brain Lesions
Brain Cancer
Additional relevant MeSH terms:
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Brain Neoplasms
Central Nervous System Neoplasms
Nervous System Neoplasms
Neoplasms by Site
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases