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
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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California
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Stanford, California, Estados Unidos, 94305
- Stanford University School of Medicine
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
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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
Otros nombres:
325 mg PO for deep venous thrombosis (DVT) prophylaxis initiated 2 hours prior to magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) treatment
Otros nombres:
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
Otros nombres:
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¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Overall Safety - Incidence of Any Device-related Adverse Events
Periodo de tiempo: 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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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Adverse Event Severity
Periodo de tiempo: 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
Periodo de tiempo: 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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Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Pejman Ghanouni, MD, PhD, Stanford University
- Investigador principal: Raffi Avedian, MD, Stanford University
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
- Neoplasias
- Neoplasias por sitio
- Neoplasias de Tejidos Blandos
- Efectos fisiológicos de las drogas
- Mecanismos moleculares de acción farmacológica
- Agentes del sistema nervioso periférico
- Inhibidores de enzimas
- Analgésicos
- Agentes del sistema sensorial
- Agentes antiinflamatorios no esteroideos
- Analgésicos no narcóticos
- Agentes antiinflamatorios
- Agentes antirreumáticos
- Agentes fibrinolíticos
- Agentes moduladores de fibrina
- Inhibidores de la agregación plaquetaria
- Inhibidores de la ciclooxigenasa
- Antipiréticos
- Anticoagulantes
- Aspirina
- Enoxaparina
Otros números de identificación del estudio
Otros números de identificación del estudio
- IRB-26667
- VAR0095 (Otro identificador: OnCore)
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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