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Soft Tissue NeoplasmsNCT01965002

Feasibility of ExAblate MRI Guided High Intensity Focused Ultrasound Tx of Soft Tissue Tumors

A study testing MRgHIFU, Aspirin and Enoxaparin in people with Soft Tissue Neoplasms, run by Pejman Ghanouni at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The goal of this project is to evaluate the safety and preliminary efficacy of ExAblate magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) surgery in the treatment of soft tissue tumors of the extremities. Read more about this study

Who is it for?
Ages 10 years and older
Conditions the study is for
Soft Tissue Neoplasms
What is being tested?
MRgHIFU, Aspirin and Enoxaparin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
5 participants
Where
1 siteUnited States
Study dates
May 2014to 24 Mar 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 10 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • ≥ 10 years of age.
  • Benign or malignant soft tissue tumors of the extremities, flanks, pelvis, or shoulders requiring surgical intervention.
  • Tumor must not have been treated previously with radiation.
  • Targeted tumor(s) are accessible to the ExAblate device
  • Targeted volume within the tumor is located deeper than 1 cm from the skin
  • Targeted tumor is clearly visible by non-contrast magnetic resonance imaging (MRI)
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  • Karnofsky Performance Status > 60
  • Normal platelet count and coagulation profile
  • Glomerular filtration rate > 60 mL/min
  • Able to safely undergo MRI exam and receive mild sedation for the treatment.
  • Able to tolerate being in the MRI scanner for the duration of the study.
  • Able and willing to give consent (or consent + assent where applicable), and able to attend all study visits.

Who cannot join

  • Previous radiation treatment to the tumor.
  • Currently receiving dialysis.
  • Acute medical condition (eg, pneumonia, sepsis) expected to hinder completion of the study
  • Unstable cardiac status including:
  • Unstable angina pectoris on medication
  • Patients with documented myocardial infarction within six months of protocol entry
Show all 23Show fewer
  • Congestive heart failure requiring medication (other than diuretic)
  • Patients on anti-arrhythmic drugs
  • Severe hypertension (diastolic BP > 100 on medication)
  • Contraindication for MR imaging such as implanted metallic devices that are not MRI-safe, size limitations, etc
  • Severe hematologic, neurologic, or other uncontrolled disease
  • Known intolerance or allergy to medications used for sedation (midazolam), analgesia (fentanyl), and local and regional anesthesia (lidocaine, bupivacaine, and ropivacaine)
  • Known intolerance or allergy to MR contrast agent (gadolinium chelates) including advanced kidney disease
  • Pregnant and nursing
  • Karnofsky Performance Score < 60
  • Severe cerebrovascular disease [cardiovascular accident (CVA) within 6 months]
  • Not able or not willing to tolerate the required prolonged stationary position during treatment (up to 5 hrs of total table time)
  • Target volume in tumor is less than 1 cm from neurovascular bundles, major blood vessels, bowel, or bladder.
  • Targeted tumors:
  • NOT visible by non-contrast MRI, OR
  • NOT accessible to ExAblate device
  • Not a candidate for either regional anesthesia or mild sedation
  • Not be participating in another trial testing other investigational agents or devices

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stanford University School of Medicine

    Stanford, California, 94305

Other trials in United States

About this study

Official title: A Feasibility Study to Evaluate the Safety and Effectiveness of ExAblate Magnetic Resonance Imaging Guided High Intensity Focused Ultrasound Treatment of Soft Tissue Tumors of the Extremities

The goal of this project is to evaluate the safety and preliminary efficacy of ExAblate magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) surgery in the treatment of soft tissue tumors of the extremities.

Read the detailed description

Given that the incidence of cancer increases with age, the number of elderly patients diagnosed and treated for soft tissue sarcomas (STS) will increase. The dilemma is that surgeons and medical oncologists may be hesitant to treat elderly patients in a comparably intensive manner as is used in the treatment of younger patients; factors such as decreased performance status, significant comorbidities, and disease natural history may erode enthusiasm for aggressive STS resection. To this end, a less invasive way of treating soft tissue tumors would be helpful in younger patients to minimize morbidity and in the elderly to provide less aggressive treatment options. The InSightec ExAblate 2000 magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) system is a non-invasive thermal ablation device fully integrated with an MR imaging system and used for the ablation of soft tissue (5-10). The ExAblate combines a focused ultrasound surgery (FUS) delivery system and a conventional diagnostic 1.5 T or 3 T MRI scanner. It provides a real-time therapy planning algorithm, thermal dosimetry, and closed-loop therapy control.

Being tested
MRgHIFU, Aspirin, Enoxaparin
Medical subject headings
Soft Tissue Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MRgHIFUDevice

    Also called ExAblate Magnetic Resonance Imaging Guided High Intensity Focused Ultrasound

    The InSightec ExAblate 2000 magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) system is a non-invasive thermal ablation device fully integrated with an MR imaging system and used for the ablation of soft tissue

  • AspirinDrug

    Also called Ecotrin

    325 mg PO for deep venous thrombosis (DVT) prophylaxis initiated 2 hours prior to magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) treatment

  • EnoxaparinDrug

    Also called Lovenox

    40 mg by subcutaneous (SC) administration, for deep venous thrombosis (DVT) prophylaxis initiated 2 hours prior to magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) treatment

Study groups in NCT01965002
Study groupRoleWhat they receive
MRgHIFUExperimentalThe InSightec ExAblate 2000 magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) system is a non-invasive device that is fully integrated with an MR imaging system and used for the ablation of soft tissue. The treatment process begins with the physician acquiring a set of MR images, identifying 1+ target volume(s) of fibroid tissue to be ablated, and drawing the treatment contours. The therapy planning software computes the type and number of sonications required to treat the defined volume while minimizing total treatment time. MR images taken during the sonication provide a diagnostic quality image of the target tissue and a quantitative, real-time temperature map overlay to confirm the therapeutic effect of the treatment. The transducer is then automatically moved to the succeeding treatment point and the process is repeated until the entire volume has been treated. About 100 individual sonications can be delivered over a 3-hour period to complete a treatment.
Receives: Device: MRgHIFU; Drug: Aspirin; Drug: Enoxaparin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Safety - Incidence of Any Device-related Adverse Events

    Safety determined by evaluating for the incidence of any device-related adverse events. Patients will be assessed for pain and limb function, and by clinical examination before and after treatment to collect adverse events related to the treatment. Safety is reported as the total incidence of device-related adverse events.

    Measured: 1 week

Secondary outcomes (2)
  1. Adverse Event Severity

    Safety is further assessed by an evaluation of severity for the treatment-related adverse events, reported as the number of adverse events for each of the Common Terminology Criteria for Adverse Events (CTCAE) v4.0 grades.

    CTCAE Severity:

    1. mild
    2. moderate
    3. severe
    4. life-threatening
    5. fatal

    Measured: 6 months

  2. Percent Successful Tumor Ablation

    In the resected tumor specimen, the volume of the ablated area will be determined by obtaining a digital photograph of each pathology slice. The region of interest corresponding to the ablated area will be traced, and the ablated area will be calculated for each slice and summed. Accuracy is assessed as the percent ablated volume relative to pre-treatment tumor volume.

    Measured: Up to 1 week

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Oct 2013 (estimated)
  2. Study startMay 2014
  3. Primary completion24 Mar 2015
  4. Study completion24 Mar 2015

Why it stopped: Accrual factor

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01965002
Sponsor's protocol ID
IRB-26667
Other IDs
VAR0095
Status last verified
Apr 2018
First submitted
15 Oct 2013
Last updated
23 May 2018
Data monitoring committee
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing MRgHIFU, Aspirin and Enoxaparin in people with Soft Tissue Neoplasms, run by Pejman Ghanouni at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 23 May 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 May 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Safety - Incidence of Any Device-related Adverse Events (time frame: 1 week). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 May 2018.

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