Feasibility of ExAblate MRI Guided High Intensity Focused Ultrasound Tx of Soft Tissue Tumors
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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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California
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Stanford, California, Vereinigte Staaten, 94305
- Stanford University School of Medicine
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
INCLUSION CRITERIA
- ≥ 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)
- 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.
EXCLUSION CRITERIA
- 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
- 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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: MRgHIFU
The 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.
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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
Andere Namen:
325 mg PO for deep venous thrombosis (DVT) prophylaxis initiated 2 hours prior to magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) treatment
Andere Namen:
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
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Overall Safety - Incidence of Any Device-related Adverse Events
Zeitfenster: 1 week
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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.
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1 week
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Adverse Event Severity
Zeitfenster: 6 months
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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:
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6 months
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Percent Successful Tumor Ablation
Zeitfenster: Up to 1 week
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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.
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Up to 1 week
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Pejman Ghanouni, MD, PhD, Stanford University
- Hauptermittler: Raffi Avedian, MD, Stanford University
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
- Neubildungen
- Neubildungen nach Standort
- Weichteilneoplasmen
- Physiologische Wirkungen von Arzneimitteln
- Molekulare Mechanismen der pharmakologischen Wirkung
- Agenten des peripheren Nervensystems
- Enzym-Inhibitoren
- Analgetika
- Agenten des sensorischen Systems
- Entzündungshemmende Mittel, nichtsteroidal
- Analgetika, nicht narkotisch
- Entzündungshemmende Mittel
- Antirheumatika
- Fibrinolytische Mittel
- Fibrinmodulierende Mittel
- Thrombozytenaggregationshemmer
- Cyclooxygenase-Inhibitoren
- Antipyretika
- Antikoagulanzien
- Aspirin
- Enoxaparin
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- IRB-26667
- VAR0095 (Andere Kennung: OnCore)
Plan für individuelle Teilnehmerdaten (IPD)
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Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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