Ignite Creation Date:
2025-12-25 @ 3:52 AM
Ignite Modification Date:
2026-03-04 @ 1:59 PM
Study NCT ID:
NCT01965002
Status:
TERMINATED
Last Update Posted:
2018-05-23
First Post:
2013-10-15
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Feasibility of ExAblate MRI Guided High Intensity Focused Ultrasound Tx of Soft Tissue Tumors
Sponsor:
Organization:
Raw JSON
{'hasResults': True, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D012983', 'term': 'Soft Tissue Neoplasms'}], 'ancestors': [{'id': 'D009371', 'term': 'Neoplasms by Site'}, {'id': 'D009369', 'term': 'Neoplasms'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'D001241', 'term': 'Aspirin'}, {'id': 'D017984', 'term': 'Enoxaparin'}], 'ancestors': [{'id': 'D012459', 'term': 'Salicylates'}, {'id': 'D062385', 'term': 'Hydroxybenzoates'}, {'id': 'D010636', 'term': 'Phenols'}, {'id': 'D001555', 'term': 'Benzene Derivatives'}, {'id': 'D006841', 'term': 'Hydrocarbons, Aromatic'}, {'id': 'D006844', 'term': 'Hydrocarbons, Cyclic'}, {'id': 'D006838', 'term': 'Hydrocarbons'}, {'id': 'D009930', 'term': 'Organic Chemicals'}, {'id': 'D006495', 'term': 'Heparin, Low-Molecular-Weight'}, {'id': 'D006493', 'term': 'Heparin'}, {'id': 'D006025', 'term': 'Glycosaminoglycans'}, {'id': 'D011134', 'term': 'Polysaccharides'}, {'id': 'D002241', 'term': 'Carbohydrates'}]}}, 'resultsSection': {'moreInfoModule': {'pointOfContact': {'email': 'ghanouni@stanford.edu', 'phone': '650-498-4485', 'title': 'Pejman Ghanouni, MD, PhD', 'organization': 'Stanford Univeristy Medical Center'}, 'certainAgreement': {'piSponsorEmployee': False, 'restrictiveAgreement': False}}, 'adverseEventsModule': {'timeFrame': 'up to 10 months', 'eventGroups': [{'id': 'EG000', 'title': 'MRgHIFU', 'description': 'The InSightec ExAblate 2000 MRgHIFU system is a non-invasive thermal ablation device fully integrated with an MR imaging system being used for the ablation of tumor tissue', 'otherNumAtRisk': 5, 'deathsNumAtRisk': 5, 'otherNumAffected': 4, 'seriousNumAtRisk': 5, 'deathsNumAffected': 0, 'seriousNumAffected': 0}], 'otherEvents': [{'term': 'Pain at tumor site', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'General disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Edema at right distal thigh', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Mild backache from positioning', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Diminished sensation along medial thigh', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Mild erythema', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Slight numbness along distal aspect of the incision', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Mild pain at tumor site', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}, {'term': 'Reduced range of motion in right knee', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'CTCAE (4.0)'}], 'frequencyThreshold': '0'}, 'outcomeMeasuresModule': {'outcomeMeasures': [{'type': 'PRIMARY', 'title': 'Overall Safety - Incidence of Any Device-related Adverse Events', 'denoms': [{'units': 'Participants', 'counts': [{'value': '5', 'groupId': 'OG000'}]}], 'groups': [{'id': 'OG000', 'title': 'MRgHIFU', 'description': 'The InSightec ExAblate 2000 MRgHIFU system is a non-invasive thermal ablation device fully integrated with an MR imaging system being used for the ablation of tumor tissue'}], 'classes': [{'categories': [{'measurements': [{'value': '8', 'groupId': 'OG000'}]}]}], 'paramType': 'NUMBER', 'timeFrame': '1 week', 'description': '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.', 'unitOfMeasure': 'device-related adverse events', 'reportingStatus': 'POSTED', 'populationDescription': 'All participants were evaluated for adverse events.'}, {'type': 'SECONDARY', 'title': 'Adverse Event Severity', 'denoms': [{'units': 'Participants', 'counts': [{'value': '5', 'groupId': 'OG000'}]}], 'groups': [{'id': 'OG000', 'title': 'MRgHIFU', 'description': '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.'}], 'classes': [{'title': 'CTCAE Grade 1', 'categories': [{'measurements': [{'value': '8', 'groupId': 'OG000'}]}]}, {'title': 'CTCAE Grade 2', 'categories': [{'measurements': [{'value': '0', 'groupId': 'OG000'}]}]}, {'title': 'CTCAE Grade 3', 'categories': [{'measurements': [{'value': '0', 'groupId': 'OG000'}]}]}, {'title': 'CTCAE Grade 4', 'categories': [{'measurements': [{'value': '0', 'groupId': 'OG000'}]}]}, {'title': 'CTCAE Grade 5', 'categories': [{'measurements': [{'value': '0', 'groupId': 'OG000'}]}]}], 'paramType': 'NUMBER', 'timeFrame': '6 months', 'description': '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.\n\nCTCAE Severity:\n\n1. mild\n2. moderate\n3. severe\n4. life-threatening\n5. fatal', 'unitOfMeasure': 'Treatment-related adverse events', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Percent Successful Tumor Ablation', 'denoms': [{'units': 'Participants', 'counts': [{'value': '1', 'groupId': 'OG000'}]}], 'groups': [{'id': 'OG000', 'title': 'MRgHIFU', 'description': 'The InSightec ExAblate 2000 MRgHIFU system is a non-invasive thermal ablation device fully integrated with an MR imaging system being used for the ablation of tumor tissue.'}], 'classes': [{'categories': [{'measurements': [{'value': '40', 'groupId': 'OG000'}]}]}], 'paramType': 'NUMBER', 'timeFrame': 'Up to 1 week', 'description': '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.', 'unitOfMeasure': 'percent ablated volume', 'reportingStatus': 'POSTED', 'populationDescription': 'Due to the complexity of 3-dimensional mapping of tumors in soft tissues, the precision necessary to capture baseline tumor volume exceeded the capability of the equipment. Baseline data per protocol for the outcome calculation was only obtained from a single participant, resulting in an inability to conduct a robust per protocol analysis.'}]}, 'participantFlowModule': {'groups': [{'id': 'FG000', 'title': 'MRgHIFU', 'description': '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.'}], 'periods': [{'title': 'Overall Study', 'milestones': [{'type': 'STARTED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '5'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '5'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '0'}]}]}]}, 'baselineCharacteristicsModule': {'denoms': [{'units': 'Participants', 'counts': [{'value': '5', 'groupId': 'BG000'}]}], 'groups': [{'id': 'BG000', 'title': 'MRgHIFU', 'description': 'The InSightec ExAblate 2000 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 one or more 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. Approximately 100 individual sonications can be delivered over a 3-hour period to complete a treatment.'}], 'measures': [{'title': 'Age, Categorical', 'classes': [{'categories': [{'title': '<=18 years', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'Between 18 and 65 years', 'measurements': [{'value': '3', 'groupId': 'BG000'}]}, {'title': '>=65 years', 'measurements': [{'value': '2', 'groupId': 'BG000'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Sex: Female, Male', 'classes': [{'categories': [{'title': 'Female', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'Male', 'measurements': [{'value': '5', 'groupId': 'BG000'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Ethnicity (NIH/OMB)', 'classes': [{'categories': [{'title': 'Hispanic or Latino', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'Not Hispanic or Latino', 'measurements': [{'value': '5', 'groupId': 'BG000'}]}, {'title': 'Unknown or Not Reported', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Race (NIH/OMB)', 'classes': [{'categories': [{'title': 'American Indian or Alaska Native', 'measurements': [{'value': '1', 'groupId': 'BG000'}]}, {'title': 'Asian', 'measurements': [{'value': '1', 'groupId': 'BG000'}]}, {'title': 'Native Hawaiian or Other Pacific Islander', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'Black or African American', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'White', 'measurements': [{'value': '3', 'groupId': 'BG000'}]}, {'title': 'More than one race', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}, {'title': 'Unknown or Not Reported', 'measurements': [{'value': '0', 'groupId': 'BG000'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NA', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'SINGLE_GROUP'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 5}}, 'statusModule': {'whyStopped': 'Accrual factor', 'overallStatus': 'TERMINATED', 'startDateStruct': {'date': '2014-05'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2018-04', 'completionDateStruct': {'date': '2015-03-24', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2018-04-28', 'studyFirstSubmitDate': '2013-10-15', 'resultsFirstSubmitDate': '2018-03-26', 'studyFirstSubmitQcDate': '2013-10-15', 'lastUpdatePostDateStruct': {'date': '2018-05-23', 'type': 'ACTUAL'}, 'resultsFirstSubmitQcDate': '2018-04-28', 'studyFirstPostDateStruct': {'date': '2013-10-17', 'type': 'ESTIMATED'}, 'resultsFirstPostDateStruct': {'date': '2018-05-23', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2015-03-24', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Overall Safety - Incidence of Any Device-related Adverse Events', 'timeFrame': '1 week', 'description': '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.'}], 'secondaryOutcomes': [{'measure': 'Adverse Event Severity', 'timeFrame': '6 months', 'description': '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.\n\nCTCAE Severity:\n\n1. mild\n2. moderate\n3. severe\n4. life-threatening\n5. fatal'}, {'measure': 'Percent Successful Tumor Ablation', 'timeFrame': 'Up to 1 week', 'description': '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.'}]}, 'oversightModule': {'oversightHasDmc': False, 'isFdaRegulatedDevice': True}, 'conditionsModule': {'conditions': ['Soft Tissue Neoplasms']}, 'descriptionModule': {'briefSummary': '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.', 'detailedDescription': '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.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'minimumAge': '10 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'INCLUSION CRITERIA\n\n* ≥ 10 years of age.\n* Benign or malignant soft tissue tumors of the extremities, flanks, pelvis, or shoulders requiring surgical intervention.\n* Tumor must not have been treated previously with radiation.\n* Targeted tumor(s) are accessible to the ExAblate device\n* Targeted volume within the tumor is located deeper than 1 cm from the skin\n* Targeted tumor is clearly visible by non-contrast magnetic resonance imaging (MRI)\n* Karnofsky Performance Status \\> 60\n* Normal platelet count and coagulation profile\n* Glomerular filtration rate \\> 60 mL/min\n* Able to safely undergo MRI exam and receive mild sedation for the treatment.\n* Able to tolerate being in the MRI scanner for the duration of the study.\n* Able and willing to give consent (or consent + assent where applicable), and able to attend all study visits.\n\nEXCLUSION CRITERIA\n\n* Previous radiation treatment to the tumor.\n* Currently receiving dialysis.\n* Acute medical condition (eg, pneumonia, sepsis) expected to hinder completion of the study\n* Unstable cardiac status including:\n\n * Unstable angina pectoris on medication\n * Patients with documented myocardial infarction within six months of protocol entry\n * Congestive heart failure requiring medication (other than diuretic)\n * Patients on anti-arrhythmic drugs\n* Severe hypertension (diastolic BP \\> 100 on medication)\n* Contraindication for MR imaging such as implanted metallic devices that are not MRI-safe, size limitations, etc\n* Severe hematologic, neurologic, or other uncontrolled disease\n* Known intolerance or allergy to medications used for sedation (midazolam), analgesia (fentanyl), and local and regional anesthesia (lidocaine, bupivacaine, and ropivacaine)\n* Known intolerance or allergy to MR contrast agent (gadolinium chelates) including advanced kidney disease\n* Pregnant and nursing\n* Karnofsky Performance Score \\< 60\n* Severe cerebrovascular disease \\[cardiovascular accident (CVA) within 6 months\\]\n* Not able or not willing to tolerate the required prolonged stationary position during treatment (up to 5 hrs of total table time)\n* Target volume in tumor is less than 1 cm from neurovascular bundles, major blood vessels, bowel, or bladder.\n* Targeted tumors:\n\n * NOT visible by non-contrast MRI, OR\n * NOT accessible to ExAblate device\n* Not a candidate for either regional anesthesia or mild sedation\n* Not be participating in another trial testing other investigational agents or devices'}, 'identificationModule': {'nctId': 'NCT01965002', 'briefTitle': 'Feasibility of ExAblate MRI Guided High Intensity Focused Ultrasound Tx of Soft Tissue Tumors', 'organization': {'class': 'OTHER', 'fullName': 'Stanford University'}, 'officialTitle': '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', 'orgStudyIdInfo': {'id': 'IRB-26667'}, 'secondaryIdInfos': [{'id': 'VAR0095', 'type': 'OTHER', 'domain': 'OnCore'}]}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'MRgHIFU', 'description': '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.', 'interventionNames': ['Device: MRgHIFU', 'Drug: Aspirin', 'Drug: Enoxaparin']}], 'interventions': [{'name': 'MRgHIFU', 'type': 'DEVICE', 'otherNames': ['ExAblate Magnetic Resonance Imaging Guided High Intensity Focused Ultrasound'], 'description': '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', 'armGroupLabels': ['MRgHIFU']}, {'name': 'Aspirin', 'type': 'DRUG', 'otherNames': ['Ecotrin'], 'description': '325 mg PO for deep venous thrombosis (DVT) prophylaxis initiated 2 hours prior to magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) treatment', 'armGroupLabels': ['MRgHIFU']}, {'name': 'Enoxaparin', 'type': 'DRUG', 'otherNames': ['Lovenox'], 'description': '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', 'armGroupLabels': ['MRgHIFU']}]}, 'contactsLocationsModule': {'locations': [{'zip': '94305', 'city': 'Stanford', 'state': 'California', 'country': 'United States', 'facility': 'Stanford University School of Medicine', 'geoPoint': {'lat': 37.42411, 'lon': -122.16608}}], 'overallOfficials': [{'name': 'Raffi Avedian, MD', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Stanford University'}, {'name': 'Pejman Ghanouni, MD, PhD', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Stanford University'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'NO'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Pejman Ghanouni', 'class': 'OTHER'}, 'responsibleParty': {'type': 'SPONSOR_INVESTIGATOR', 'investigatorTitle': 'Assistant Professor of Radiology', 'investigatorFullName': 'Pejman Ghanouni', 'investigatorAffiliation': 'Stanford University'}}}}