Ignite Creation Date:
2025-12-26 @ 11:13 PM
Ignite Modification Date:
2025-12-26 @ 11:13 PM
Study NCT ID:
NCT05547412
Status:
TERMINATED
Last Update Posted:
2024-04-09
First Post:
2022-09-15
Is NOT Gene Therapy:
False
Has Adverse Events:
True
Brief Title:
Validation of Velocity Curvature Index as a Diagnostic Biomarker Tool for Assessment of Large Vessel Stroke
Sponsor:
Organization:
Raw JSON
{'hasResults': True, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D020521', 'term': 'Stroke'}, {'id': 'D000083242', 'term': 'Ischemic Stroke'}], 'ancestors': [{'id': 'D002561', 'term': 'Cerebrovascular Disorders'}, {'id': 'D001927', 'term': 'Brain Diseases'}, {'id': 'D002493', 'term': 'Central Nervous System Diseases'}, {'id': 'D009422', 'term': 'Nervous System Diseases'}, {'id': 'D014652', 'term': 'Vascular Diseases'}, {'id': 'D002318', 'term': 'Cardiovascular Diseases'}]}}, 'resultsSection': {'moreInfoModule': {'pointOfContact': {'email': 'manja.lenkin@novasignal.com', 'phone': '8776387251', 'title': 'Manja Lenkin', 'organization': 'NovaSignal'}, 'certainAgreement': {'piSponsorEmployee': False, 'restrictiveAgreement': False}}, 'adverseEventsModule': {'timeFrame': '1 day', 'description': 'Device and procedure related adverse events collected only', 'eventGroups': [{'id': 'EG000', 'title': 'Cohort X', 'description': "Phase 0 will include up to 20 subjects in Cohort X (TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows.", 'otherNumAtRisk': 10, 'deathsNumAtRisk': 10, 'otherNumAffected': 0, 'seriousNumAtRisk': 10, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG001', 'title': 'Cohort Y', 'description': 'Phase 0 will include up to 20 subjects in Cohort Y (No TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.', 'otherNumAtRisk': 17, 'deathsNumAtRisk': 17, 'otherNumAffected': 0, 'seriousNumAtRisk': 17, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG002', 'title': 'Cohort A', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort A (LVO TCD). Cohort A will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows.", 'otherNumAtRisk': 0, 'deathsNumAtRisk': 0, 'otherNumAffected': 0, 'seriousNumAtRisk': 0, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG003', 'title': 'Cohort B', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort B (Non-LVO TCD). Cohort B will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows.", 'otherNumAtRisk': 0, 'deathsNumAtRisk': 0, 'otherNumAffected': 0, 'seriousNumAtRisk': 0, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG004', 'title': 'Cohort C', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort C (LVO No-TCD). Cohort C will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2', 'otherNumAtRisk': 0, 'deathsNumAtRisk': 0, 'otherNumAffected': 0, 'seriousNumAtRisk': 0, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG005', 'title': 'Cohort D', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort D (Non-LVO No-TCD). Cohort D will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2', 'otherNumAtRisk': 0, 'deathsNumAtRisk': 0, 'otherNumAffected': 0, 'seriousNumAtRisk': 0, 'deathsNumAffected': 0, 'seriousNumAffected': 0}], 'frequencyThreshold': '0'}, 'outcomeMeasuresModule': {'outcomeMeasures': [{'type': 'PRIMARY', 'title': 'Primary Endpoint: Area Under the Curve (AUC), Sensitivity, and Specificity of VCI When Compared Against Standard of Care Imaging.', 'denoms': [{'units': 'Participants', 'counts': [{'value': '0', 'groupId': 'OG000'}, {'value': '0', 'groupId': 'OG001'}, {'value': '0', 'groupId': 'OG002'}, {'value': '0', 'groupId': 'OG003'}, {'value': '0', 'groupId': 'OG004'}, {'value': '0', 'groupId': 'OG005'}]}], 'groups': [{'id': 'OG000', 'title': 'Cohort X', 'description': "Phase 0 will include up to 20 subjects in Cohort X (TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'OG001', 'title': 'Cohort Y', 'description': 'Phase 0 will include up to 20 subjects in Cohort Y (No TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.'}, {'id': 'OG002', 'title': 'Cohort A', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort A (LVO TCD). Cohort A will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'OG003', 'title': 'Cohort B', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort B (Non-LVO TCD). Cohort B will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'OG004', 'title': 'Cohort C', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort C (LVO No-TCD). Cohort C will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}, {'id': 'OG005', 'title': 'Cohort D', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort D (Non-LVO No-TCD). Cohort D will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}], 'timeFrame': '1 day', 'description': "The primary endpoint for both Phase 1 and Phase 2 of the study is to measure the AUC, Sensitivity, and Specificity of Velocity Curvature Index (VCI) when compared against standard of care CTA imaging for large vessel occlusion assessment. Initial assessment of outcome will be done after 18 months of study start and complete assessment will be done at the end of study's Phase 2.", 'reportingStatus': 'POSTED', 'populationDescription': 'It was pre-specified in "Outcome Measure Description" to report primary endpoint data for Phases 1 and 2 only, which includes subject Cohorts A-D. Phases 1 and 2 were never started due to lack of funding and no data was collected for subjects in Cohorts A-D that would allow data analysis regarding primary and secondary outcome measures.'}]}, 'participantFlowModule': {'groups': [{'id': 'FG000', 'title': 'Cohort X', 'description': "Phase 0 will include up to 20 subjects in Cohort X (TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'FG001', 'title': 'Cohort Y', 'description': 'Phase 0 will include up to 20 subjects in Cohort Y (No TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.'}, {'id': 'FG002', 'title': 'Cohort A', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort A (LVO TCD). Cohort A will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'FG003', 'title': 'Cohort B', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort B (Non-LVO TCD). Cohort B will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'FG004', 'title': 'Cohort C', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort C (LVO No-TCD). Cohort C will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}, {'id': 'FG005', 'title': 'Cohort D', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort D (Non-LVO No-TCD). Cohort D will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}], 'periods': [{'title': 'Overall Study', 'milestones': [{'type': 'STARTED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '10'}, {'groupId': 'FG001', 'numSubjects': '17'}, {'groupId': 'FG002', 'numSubjects': '0'}, {'groupId': 'FG003', 'numSubjects': '0'}, {'groupId': 'FG004', 'numSubjects': '0'}, {'groupId': 'FG005', 'numSubjects': '0'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '10'}, {'groupId': 'FG001', 'numSubjects': '17'}, {'groupId': 'FG002', 'numSubjects': '0'}, {'groupId': 'FG003', 'numSubjects': '0'}, {'groupId': 'FG004', 'numSubjects': '0'}, {'groupId': 'FG005', 'numSubjects': '0'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '0'}, {'groupId': 'FG001', 'numSubjects': '0'}, {'groupId': 'FG002', 'numSubjects': '0'}, {'groupId': 'FG003', 'numSubjects': '0'}, {'groupId': 'FG004', 'numSubjects': '0'}, {'groupId': 'FG005', 'numSubjects': '0'}]}]}]}, 'baselineCharacteristicsModule': {'denoms': [{'units': 'Participants', 'counts': [{'value': '10', 'groupId': 'BG000'}, {'value': '17', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '27', 'groupId': 'BG006'}]}], 'groups': [{'id': 'BG000', 'title': 'Cohort X', 'description': "Phase 0 will include up to 20 subjects in Cohort X (TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'BG001', 'title': 'Cohort Y', 'description': 'Phase 0 will include up to 20 subjects in Cohort Y (No TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.'}, {'id': 'BG002', 'title': 'Cohort A', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort A (LVO TCD). Cohort A will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'BG003', 'title': 'Cohort B', 'description': "Both Phase 1 and Phase 2 of the study will enroll Cohort B (Non-LVO TCD). Cohort B will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2\n\nNovaGuide 2 Intelligent Ultrasound System: The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows."}, {'id': 'BG004', 'title': 'Cohort C', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort C (LVO No-TCD). Cohort C will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}, {'id': 'BG005', 'title': 'Cohort D', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort D (Non-LVO No-TCD). Cohort D will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}, {'id': 'BG006', 'title': 'Total', 'description': 'Total of all reporting groups'}], 'measures': [{'title': 'Age, Categorical', 'classes': [{'categories': [{'title': '<=18 years', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}, {'title': 'Between 18 and 65 years', 'measurements': [{'value': '4', 'groupId': 'BG000'}, {'value': '11', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '15', 'groupId': 'BG006'}]}, {'title': '>=65 years', 'measurements': [{'value': '6', 'groupId': 'BG000'}, {'value': '6', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '12', 'groupId': 'BG006'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Sex: Female, Male', 'classes': [{'categories': [{'title': 'Female', 'measurements': [{'value': '5', 'groupId': 'BG000'}, {'value': '8', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '13', 'groupId': 'BG006'}]}, {'title': 'Male', 'measurements': [{'value': '5', 'groupId': 'BG000'}, {'value': '9', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '14', 'groupId': 'BG006'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Ethnicity (NIH/OMB)', 'classes': [{'categories': [{'title': 'Hispanic or Latino', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '1', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '1', 'groupId': 'BG006'}]}, {'title': 'Not Hispanic or Latino', 'measurements': [{'value': '10', 'groupId': 'BG000'}, {'value': '16', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '26', 'groupId': 'BG006'}]}, {'title': 'Unknown or Not Reported', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Race (NIH/OMB)', 'classes': [{'categories': [{'title': 'American Indian or Alaska Native', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}, {'title': 'Asian', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}, {'title': 'Native Hawaiian or Other Pacific Islander', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}, {'title': 'Black or African American', 'measurements': [{'value': '1', 'groupId': 'BG000'}, {'value': '5', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '6', 'groupId': 'BG006'}]}, {'title': 'White', 'measurements': [{'value': '9', 'groupId': 'BG000'}, {'value': '12', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '21', 'groupId': 'BG006'}]}, {'title': 'More than one race', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}, {'title': 'Unknown or Not Reported', 'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}, {'value': '0', 'groupId': 'BG003'}, {'value': '0', 'groupId': 'BG004'}, {'value': '0', 'groupId': 'BG005'}, {'value': '0', 'groupId': 'BG006'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}], 'populationDescription': 'Number of participants analyzed for Cohorts A-D is zero because no subjects were enrolled in Cohorts A-D because study was suspended due to lack of funding.'}}, 'documentSection': {'largeDocumentModule': {'largeDocs': [{'date': '2020-11-01', 'size': 832507, 'label': 'Study Protocol and Statistical Analysis Plan', 'hasIcf': False, 'hasSap': True, 'filename': 'Prot_SAP_000.pdf', 'typeAbbrev': 'Prot_SAP', 'uploadDate': '2024-02-06T18:07', 'hasProtocol': True}]}}, 'protocolSection': {'designModule': {'studyType': 'OBSERVATIONAL', 'designInfo': {'timePerspective': 'PROSPECTIVE', 'observationalModel': 'COHORT'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 27}, 'patientRegistry': False}, 'statusModule': {'whyStopped': 'enrollment, administrative/finance', 'overallStatus': 'TERMINATED', 'startDateStruct': {'date': '2022-09-21', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2024-03', 'completionDateStruct': {'date': '2023-01-31', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2024-03-14', 'studyFirstSubmitDate': '2022-09-15', 'resultsFirstSubmitDate': '2024-02-06', 'studyFirstSubmitQcDate': '2022-09-16', 'lastUpdatePostDateStruct': {'date': '2024-04-09', 'type': 'ACTUAL'}, 'resultsFirstSubmitQcDate': '2024-03-14', 'studyFirstPostDateStruct': {'date': '2022-09-21', 'type': 'ACTUAL'}, 'resultsFirstPostDateStruct': {'date': '2024-04-09', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2023-01-16', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Primary Endpoint: Area Under the Curve (AUC), Sensitivity, and Specificity of VCI When Compared Against Standard of Care Imaging.', 'timeFrame': '1 day', 'description': "The primary endpoint for both Phase 1 and Phase 2 of the study is to measure the AUC, Sensitivity, and Specificity of Velocity Curvature Index (VCI) when compared against standard of care CTA imaging for large vessel occlusion assessment. Initial assessment of outcome will be done after 18 months of study start and complete assessment will be done at the end of study's Phase 2."}]}, 'oversightModule': {'isUsExport': True, 'oversightHasDmc': False, 'isFdaRegulatedDrug': False, 'isUnapprovedDevice': True, 'isFdaRegulatedDevice': True}, 'conditionsModule': {'conditions': ['Stroke', 'Acute Ischemic Stroke']}, 'referencesModule': {'references': [{'pmid': '27272487', 'type': 'BACKGROUND', 'citation': 'Hastrup S, Damgaard D, Johnsen SP, Andersen G. Prehospital Acute Stroke Severity Scale to Predict Large Artery Occlusion: Design and Comparison With Other Scales. Stroke. 2016 Jul;47(7):1772-6. doi: 10.1161/STROKEAHA.115.012482. Epub 2016 Jun 7.'}, {'pmid': '29367333', 'type': 'BACKGROUND', 'citation': 'Smith EE, Kent DM, Bulsara KR, Leung LY, Lichtman JH, Reeves MJ, Towfighi A, Whiteley WN, Zahuranec DB; American Heart Association Stroke Council. Accuracy of Prediction Instruments for Diagnosing Large Vessel Occlusion in Individuals With Suspected Stroke: A Systematic Review for the 2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke. Stroke. 2018 Mar;49(3):e111-e122. doi: 10.1161/STR.0000000000000160. Epub 2018 Jan 24.'}, {'pmid': '30293170', 'type': 'BACKGROUND', 'citation': "Thorpe SG, Thibeault CM, Wilk SJ, O'Brien M, Canac N, Ranjbaran M, Devlin C, Devlin T, Hamilton RB. Velocity Curvature Index: a Novel Diagnostic Biomarker for Large Vessel Occlusion. Transl Stroke Res. 2019 Oct;10(5):475-484. doi: 10.1007/s12975-018-0667-2. Epub 2018 Oct 6."}, {'pmid': '30386287', 'type': 'BACKGROUND', 'citation': 'Thorpe SG, Thibeault CM, Canac N, Wilk SJ, Devlin T, Hamilton RB. Decision Criteria for Large Vessel Occlusion Using Transcranial Doppler Waveform Morphology. Front Neurol. 2018 Oct 17;9:847. doi: 10.3389/fneur.2018.00847. eCollection 2018.'}, {'pmid': '31217091', 'type': 'BACKGROUND', 'citation': "Jalaleddini K, Canac N, Thorpe SG, O'Brien MJ, Ranjbaran M, Delay B, Dorn AY, Scalzo F, Thibeault CM, Wilk SJ, Hamilton RB. Objective Assessment of Beat Quality in Transcranial Doppler Measurement of Blood Flow Velocity in Cerebral Arteries. IEEE Trans Biomed Eng. 2020 Mar;67(3):883-892. doi: 10.1109/TBME.2019.2923146. Epub 2019 Jun 17."}]}, 'descriptionModule': {'briefSummary': 'This study is a multi-center, multi-phase, multi-cohort, prospective, randomized, open, blinded endpoint (PROBE), non-significant risk (NSR) device study including up to 420 evaluable subjects measured with the study device(s) and up to 40 non-evaluable subjects for the training phase.', 'detailedDescription': 'The purpose of this study is to collect robust data from NovaGuide 2 Intelligent Ultrasound System to validate the Velocity Curvature Index (VCI) as a diagnostic biomarker tool to drive clinical decision making for assessing cerebral vascular occlusions confirmed by standard of care Computed Tomography Angiography (CTA) imaging.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'minimumAge': '18 Years', 'samplingMethod': 'PROBABILITY_SAMPLE', 'studyPopulation': 'Subjects will be enrolled from Stroke centers in the U.S.', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n1. Subject aged 18 years and older referred for evaluation of possible stroke.\n2. Subject receives Computed Tomography Angiography (CTA) imaging for the assessment of stroke.\n3. Subject or Legally Authorized Representative has the ability to provide informed consent and comply with the protocol.\n\nExclusion Criteria:\n\n1. Head CT findings consistent with acute primary intracranial hemorrhage (ICH), etc.\n2. Subjects with occlusions in the distal or posterior circulation arteries.\n3. Subjects who underwent partial or full craniotomy\n4. Additional intracranial pathologies present (tumor, hydrocephalus, etc.)\n5. Anticipated insufficient time to acquire a complete TCD scan as described by the protocol\n6. Subjects who have a physical limitation preventing placement of the system.'}, 'identificationModule': {'nctId': 'NCT05547412', 'acronym': 'VOICE', 'briefTitle': 'Validation of Velocity Curvature Index as a Diagnostic Biomarker Tool for Assessment of Large Vessel Stroke', 'organization': {'class': 'INDUSTRY', 'fullName': 'NovaSignal Corp.'}, 'officialTitle': 'Validation of Velocity Curvature Index as a Diagnostic Biomarker Tool for Assessment of Large Vessel Stroke', 'orgStudyIdInfo': {'id': 'NA-01STR-03'}, 'secondaryIdInfos': [{'id': 'U44NS109952', 'link': 'https://reporter.nih.gov/quickSearch/U44NS109952', 'type': 'NIH'}]}, 'armsInterventionsModule': {'armGroups': [{'label': 'Cohort X', 'description': 'Phase 0 will include up to 20 subjects in Cohort X (TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.', 'interventionNames': ['Device: NovaGuide 2 Intelligent Ultrasound System']}, {'label': 'Cohort Y', 'description': 'Phase 0 will include up to 20 subjects in Cohort Y (No TCD). This phase is for training and feasibility purposes only and data collected will not be used in the final analysis.'}, {'label': 'Cohort A', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort A (LVO TCD). Cohort A will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2', 'interventionNames': ['Device: NovaGuide 2 Intelligent Ultrasound System']}, {'label': 'Cohort B', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort B (Non-LVO TCD). Cohort B will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2', 'interventionNames': ['Device: NovaGuide 2 Intelligent Ultrasound System']}, {'label': 'Cohort C', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort C (LVO No-TCD). Cohort C will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}, {'label': 'Cohort D', 'description': 'Both Phase 1 and Phase 2 of the study will enroll Cohort D (Non-LVO No-TCD). Cohort D will enroll 54 subjects in Phase 1 and 156 subjects in Phase 2'}], 'interventions': [{'name': 'NovaGuide 2 Intelligent Ultrasound System', 'type': 'DEVICE', 'description': "The NovaGuide 2 Intelligent Ultrasound system is an adjunctive mobile, non-invasive, non-ionizing radiation transcranial Doppler (TCD) diagnostic ultrasound system. The system contains a transcranial doppler ultrasound equipment combined with robotic mechanisms used to position ultrasound probes, which assist the user in the acquisition of cerebral blood flow velocity (CBFV) data via a patient's temporal acoustic windows.", 'armGroupLabels': ['Cohort A', 'Cohort B', 'Cohort X']}]}, 'contactsLocationsModule': {'locations': [{'zip': '37404', 'city': 'Chattanooga', 'state': 'Tennessee', 'country': 'United States', 'facility': 'CHI Memorial Hospital', 'geoPoint': {'lat': 35.04563, 'lon': -85.30968}}], 'overallOfficials': [{'name': 'Robert Hamilton, Ph.D.', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'NovaSignal Corp.'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'UNDECIDED'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'NovaSignal Corp.', 'class': 'INDUSTRY'}, 'collaborators': [{'name': 'National Institutes of Health (NIH)', 'class': 'NIH'}, {'name': 'National Institute of Neurological Disorders and Stroke (NINDS)', 'class': 'NIH'}], 'responsibleParty': {'type': 'SPONSOR'}}}}