A Phase IV Post Approval Clinical Study of ExAblate Treatment of Metastatic Bone Tumors for the Palliation of Pain
ExAblate treatment works by focusing ultrasound to heat a small spot much like a magnifying glass can be used to focus light on a spot. Unlike light, ultrasound passes through the skin into the body to a spot your doctor wants to destroy, such as a spot in a tumor. The goal of this clinical research study is to learn more about how effective the ExAblate device is at treating pain due to bone metastases or MM. The safety of this device will also continue to be studied.
Disease Group: Bone
Treatment Agent: MRI
Treatment Location: Both at MDACC & and Other Sites
The primary objective of the study is to evaluate the safety and efficacy of the ExAblate palliative treatment of painful bone metastases.
IRB Review and Approval Date: 02/18/2015
Recruitment Status: Not Accepting
Projected Accrual: 70
1) Men and women age 18 and older.
2) Patients who are able and willing to give consent and able to attend all study visits.
3) Patients who are suffering from symptoms of bone metastases or multiple myeloma bone lesions: *Patients who have received radiation without adequate relief from metastatic bone pain as determined by the patient and treating physician, those for whom their treating physician would not prescribe radiation or additional radiation treatments, and those patients who refuse additional radiation therapy. *That appears to be metastatic disease or multiple myeloma by clinical and or imaging techniques with known history of malignancy. *Who have persistent intractable pain from a well defined tumor site. *Who have a fracture risk score </= 7.
4) Patient with NRS (0-10 scale) pain score >/= 4 irrespective of medication.
5) Targeted bone/tumor interface are ExAblate device accessible and are located in ribs, extremities (excluding joints), pelvis, shoulders and in the posterior aspects of the following spinal vertebra: Lumbar vertebra (L3 – L5), Sacral vertebra (S1 – S5).
6) Targeted bone/tumor interface (most painful lesion) size up to 55 cm2 in surface area.
7) Patient whose targeted (treated) lesion is on bone and the interface between the bone and lesion is deeper than 10-mm from the skin.
8) Targeted (treated) tumor clearly visible by non-contrast MRI, and ExAblate MRgFUS device accessible.
9) Able to communicate sensations during the ExAblate treatment.
10) Patients on ongoing chemotherapy regimen at the time of eligibility: 1.) with same chemotherapy regime (as documented from patient medical dossier), 2.) Worst pain NRS still >/= 4. 3.) do NOT plan to initiate a new chemotherapy for pain palliation should be eligible for the study. (Note: Planned multiple courses of chemotherapy are not considered New Chemotherapy).
11) No radiation therapy to targeted (most painful) lesion in the past two weeks.
12) Bisphosphonate intake should remain stable throughout the study duration.
13) Patients will have from 1 to 5 painful lesions and only the most painful lesion will be treated.
14) Patients with persistent distinguishable pain associated with 1 site to be treated (if patient has pain from additional sites, the pain from the additional sites must be evaluated as being less intense by at least 2 points on the NRS compared to the site to be treated).
1) Patients who either *Need surgical stabilization of the affected bony
structure (>7 fracture risk score or *Targeted tumor is at an
impending fracture site (>7 on fracture risk score) or *Patients with
surgical stabilization of tumor site with metallic hardware.
2) More than 5 painful lesions, or more than 1 requiring immediate localized treatment.
3) Targeted (treated) tumor is in the skull.
4) Patients on dialysis.
5) Patients with life expectancy < 3-Months.
6) Patients with an acute medical condition (e.g., pneumonia, sepsis) that is expected to hinder them from completing this study.
7) Patients with unstable cardiac status including: *Unstable angina pectoris on medication, *Patients with documented myocardial infarction within six months of protocol entry, *Congestive heart failure requiring medication (other than diuretic), *Patients on anti-arrhythmic drugs.
8) Severe hypertension (diastolic BP > 100 on medication).
9) Patients with standard contraindications for MR imaging such as non-MRI compatible implanted metallic devices including cardiac pacemakers, size limitations, etc.
10) Patients with an active infection or severe hematological, neurological, or other uncontrolled disease.
11) Known intolerance or allergies to the MRI contrast agent (e.g. Gadolinium or Magnevist) including advanced kidney disease.
12) KPS Score < 60.
13) Severe cerebrovascular disease (multiple CVA or CVA within 6 months).
14) Individuals who are not able or willing to tolerate the required prolonged stationary position during treatment (approximately 2 hrs.)
15) Target (treated) tumor is less than 1cm from nerve bundles, bowels or bladder.
16) Patients initiating a new chemotherapy regime for pain purposes only, or radiation (for the targeted most painful lesion) within the last 2 weeks. (Note: Planned multiple courses of chemotherapy are not considered New Chemotherapy.)
17) Patients unable to communicate with the investigator and staff.
18) Patients with persistent undistinguishable pain (pain source unidentifiable of the targeted lesion).
19) Patient whose bone-lesion interface is < 10-mm from the skin.
20) Targeted (most painful) tumor NOT visible by non-contrast MRI.
21) Targeted (most painful) tumor Not accessible to ExAblate.
22) The targeted tumor is less than 2 points more painful compared to other painful lesions on the site specific NRS.
Information and next steps
For general questions about clinical trials: