Study of ExAblate Focused Ultrasound Ablation of Breast Cancer

Study of ExAblate Focused Ultrasound Ablation of Breast Cancer Under MR Guidance (MRgFUS) and MRI Evaluation of Ablation

The goal of this prospective, non-randomized, single-arm, multi site, international study is to develop data to evaluate the safety and effectiveness of the ExAblate MRgFUS system in the ablation of breast cancer and of MRI.

The goal of MRgFUS ablation of breast cancer is to plan and ablate the entire tumor volume in a treatable and device accessible location.

Study Overview

• Status: Completed
• Conditions: Breast Cancer
• Intervention / Treatment: Device: ExAblate MRgFUS

Detailed Description

In this international, non-randomized, single-arm study, a total of 200 patients with a positive diagnosis of invasive breast cancer with a scheduled surgical resection will be enrolled into the trial. Eligible participants will be evaluated and treated with ExAblate breast ablation prior to their planned definitive surgical treatment. After the 10 to 21 days post ExAblate therapy, study participants will have another contrast-enhanced MR imaging examination. Their planned tumor excision will then be completed no later than 14 days from the contrast-enhanced, post ExAblate procedure MR imaging examination. Additionally, the end points of the study will be compared against the CORE Pathology Lab results.

• Study Type: Interventional
• Enrollment (Actual): 14
• Phase: Phase 2

Contacts and Locations

Study Locations

• Germany
  • Bottrop, Germany, 46236
    • Marienhospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

1. Women age 18 years with invasive breast cancer
2. Patient with contrast-enhanced MR imaging confirming a single focal breast lesion less than 2 cm in diameter
3. Lesion clearly seen on contrast-enhanced MR and in a treatable location
4. Patient who is willing to undergo and be scheduled for sentinel lymph node biopsy
5. Patient scheduled and consented to surgical (lumpectomy or mastectomy) resection of the breast cancer
6. Patient with clinical Stage I disease: T1 M0 N0
7. Patient who signs an informed consent form for screening, SLNB, ablation, and follow-up visits.

Exclusion Criteria:

1. Invasive lobular carcinoma;
2. DCIS without invasive components on core biopsy;
3. Tamoxifen, Aromatase Inhibitors, and Neoadjuvant chemotherapy within 30 days prior to ExAblate.
4. Prior XRT or ablative therapy to the target breast;
5. Patients currently receiving anticoagulation therapy within the previous 14 days;
6. Lesions difficult to target (<1 cm from skin, nipple or the rib cage), as visualized on pre-therapy MRI;
7. Microcalcifications as the only sign of breast cancer on imaging studies;
8. Extensive intraductal components (EIC) on core biopsy.
9. Patients with breast implants;
10. Patients with prior surgical clips or other markers at the site of the breast tumor;
11. Patients with severe cerebrovascular disease (multiple CVA or CVA within 6 months);
12. hemolytic anemia (hematocrit < 30);
13. Pregnant or lactating, post-partum women;
14. Patient overall health status of ASA >2
15. Patient with active and ongoing infection at any body site;
16. Poor blood glucose control.
17. Severe hypertension
18. Patients with unstable cardiac status
19. Contraindication to MR or ExAblate ablation therapy
20. Patient with history of deep vein thrombosis
21. With history of pulmonary embolism;
22. Patient with sleep apnea;
23. Patient with airway problems;
24. Patient with severe claustrophobia;
25. Patient with non-MRI compatible implanted metal devices;
26. Patient with difficulty lying prone and still for up to 3 hours (180 minutes) in the MR unit;
27. Patient who cannot fit comfortably in the magnet or patients >250 lbs;
28. Patient with prior reaction to contrast agent;
29. Patient with history of grand mal seizures;
30. Patient with severely impaired renal function with estimated glomerular filtration rate <30 mL/min/1.73m2 and/or who is on dialysis;

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: ExAblate	Device: ExAblate MRgFUS; 100% ablation of an up-to-2-cm breast cancer visible on an contrast-enhanced MRI with 5-10 mm margins around the primary tumor

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Adverse Events	To evaluate the incidence and severity of the ExAblate MRgFUS device-related complications to establish the safety profile of the ExAblate ablation of breast cancer visible on contrast-enhanced MRI with 5-10 mm margins around the primary tumor	5 weeks post treatment
Histopathological analyses	To estimate the effectiveness of ExAblate MRgFUS to ablate 100% of an up-to-2-cm breast cancer visible on an contrast-enhanced MRI with 5-10 mm margins around the primary tumor.	5 weeks post treatment

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
MR imaging	To estimate the sensitivity of post-ablation MRI in identifying residual disease following ablation.	5 weeks post treatment

Collaborators and Investigators

• Sponsor: InSightec
• Investigators: Principal Investigator: Hans Kolberg, MD, FUS BOTTROP

Publications and helpful links

Helpful Links

• Sponsor's website

Study record dates

Study Major Dates

• Study Start: June 1, 2011
• Primary Completion (Actual): July 1, 2016
• Study Completion (Actual): July 1, 2016

Study Registration Dates

• First Submitted: June 13, 2012
• First Submitted That Met QC Criteria: June 14, 2012
• First Posted (Estimate): June 15, 2012

Study Record Updates

• Last Update Posted (Estimate): August 31, 2016
• Last Update Submitted That Met QC Criteria: August 29, 2016
• Last Verified: August 1, 2016

More Information

Terms related to this study

• Keywords: Breast cancer; Breast tumor; stage 1 disease; T1 M0 N0
• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms; Neoplasms by Site; Breast Diseases; Breast Neoplasms
• Other Study ID Numbers: BC006