Raw JSON
{'hasResults': True, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24', 'submissionTracking': {'firstMcpInfo': {'postDateStruct': {'date': '2021-10-28', 'type': 'ACTUAL'}}}}, 'interventionBrowseModule': {'meshes': [{'id': 'D010208', 'term': 'Papaverine'}, {'id': 'D006493', 'term': 'Heparin'}], 'ancestors': [{'id': 'D044182', 'term': 'Benzylisoquinolines'}, {'id': 'D000470', 'term': 'Alkaloids'}, {'id': 'D006571', 'term': 'Heterocyclic Compounds'}, {'id': 'D053610', 'term': 'Opiate Alkaloids'}, {'id': 'D007546', 'term': 'Isoquinolines'}, {'id': 'D006574', 'term': 'Heterocyclic Compounds, 2-Ring'}, {'id': 'D000072471', 'term': 'Heterocyclic Compounds, Fused-Ring'}, {'id': 'D006025', 'term': 'Glycosaminoglycans'}, {'id': 'D011134', 'term': 'Polysaccharides'}, {'id': 'D002241', 'term': 'Carbohydrates'}]}}, 'resultsSection': {'moreInfoModule': {'pointOfContact': {'email': 'Nischal.K.Gautam@uth.tmc.edu', 'phone': '(713) 500-6200', 'title': 'Nischal K. Gautam, MD', 'organization': 'The University of Texas Health Science Center at Houston'}, 'certainAgreement': {'piSponsorEmployee': True}}, 'adverseEventsModule': {'timeFrame': 'about 6 hours', 'eventGroups': [{'id': 'EG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.', 'otherNumAtRisk': 42, 'deathsNumAtRisk': 42, 'otherNumAffected': 0, 'seriousNumAtRisk': 42, 'deathsNumAffected': 0, 'seriousNumAffected': 0}, {'id': 'EG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.', 'otherNumAtRisk': 46, 'deathsNumAtRisk': 46, 'otherNumAffected': 0, 'seriousNumAtRisk': 46, 'deathsNumAffected': 0, 'seriousNumAffected': 0}], 'frequencyThreshold': '0'}, 'outcomeMeasuresModule': {'outcomeMeasures': [{'type': 'PRIMARY', 'title': 'Number of Participants With Optimal Arterial Waveform', 'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'OG000'}, {'value': '46', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'OG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}], 'classes': [{'categories': [{'measurements': [{'value': '27', 'groupId': 'OG000'}, {'value': '18', 'groupId': 'OG001'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'timeFrame': '5 minutes after first dose', 'description': 'Optimal waveform was defined as easy aspiration of a blood sample (negative aspiration is easy and draws back freely without cavitation, and takes no more than 30 seconds to draw 1 mL), absence of color change at the catheter insertion site, and presence of a dicrotic notch in the arterial pressure waveform (a distinct dicrotic notch implies system has good resolution at higher frequencies and is not overdamped).', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'These data were not collected for 2 participants in the Papaverine plus Heparin arm and 1 in the Heparin arm.'}, {'type': 'SECONDARY', 'title': 'Number of Participants With Optimal Arterial Waveform', 'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'OG000'}, {'value': '46', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'OG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}], 'classes': [{'categories': [{'measurements': [{'value': '30', 'groupId': 'OG000'}, {'value': '28', 'groupId': 'OG001'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'timeFrame': '60 minutes after first dose', 'description': 'Optimal waveform was defined as easy aspiration of a blood sample (negative aspiration is easy and draws back freely without cavitation, and takes no more than 30 seconds to draw 1 mL), absence of color change at the catheter insertion site, and presence of a dicrotic notch in the arterial pressure waveform (a distinct dicrotic notch implies system has good resolution at higher frequencies and is not overdamped).', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'These data were not collected for 2 participants in the Papaverine plus Heparin arm and 1 in the Heparin arm.'}, {'type': 'SECONDARY', 'title': 'Number of Participants With Suboptimal Waveforms Who Received Rescue Papaverine and for Whom Papaverine Rescued Suboptimal Waveforms', 'denoms': [{'units': 'Participants', 'counts': [{'value': '7', 'groupId': 'OG000'}, {'value': '17', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'OG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}], 'classes': [{'categories': [{'measurements': [{'value': '3', 'groupId': 'OG000'}, {'value': '13', 'groupId': 'OG001'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'timeFrame': '5 minutes after injection of rescue papaverine (about 70 minutes after first study drug dose and about 10 minutes after second study drug dose)', 'description': 'These data were collected only from participants who received rescue papaverine. 7 in the Papaverine plus Heparin arm received rescue papaverine. 17 in the Heparin arm received rescue papaverine.', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'These data were collected only from participants who received rescue papaverine. 7 in the Papaverine plus Heparin arm received rescue papaverine. 17 in the Heparin arm received rescue papaverine.'}]}, 'participantFlowModule': {'groups': [{'id': 'FG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'FG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}], 'periods': [{'title': 'Randomized Dosing (Doses 1 and 2)', 'milestones': [{'type': 'STARTED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '46'}, {'groupId': 'FG001', 'numSubjects': '50'}]}, {'type': 'Received Dose 1', 'achievements': [{'groupId': 'FG000', 'numSubjects': '44'}, {'groupId': 'FG001', 'numSubjects': '47'}]}, {'type': 'Received Dose 2', 'achievements': [{'groupId': 'FG000', 'numSubjects': '42'}, {'groupId': 'FG001', 'numSubjects': '46'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '42'}, {'groupId': 'FG001', 'numSubjects': '46'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '4'}, {'groupId': 'FG001', 'numSubjects': '4'}]}], 'dropWithdraws': [{'type': 'Did not receive intervention because peripheral arterial line (PAL) was replaced due to spasm', 'reasons': [{'groupId': 'FG000', 'numSubjects': '2'}, {'groupId': 'FG001', 'numSubjects': '3'}]}, {'type': 'Did not receive second dose', 'reasons': [{'groupId': 'FG000', 'numSubjects': '2'}, {'groupId': 'FG001', 'numSubjects': '1'}]}]}, {'title': 'Rescue Papaverine (Optional Dose 3)', 'milestones': [{'type': 'STARTED', 'comment': 'Only participants who had suboptimal waveforms after the first 2 randomized doses in the previous period went on to receive rescue papaverine in this period. 7 in the Papaverine plus Heparin arm received rescue papaverine. 17 in the Heparin arm received rescue papaverine.', 'achievements': [{'groupId': 'FG000', 'numSubjects': '7'}, {'groupId': 'FG001', 'numSubjects': '17'}]}, {'type': 'Received Rescue Papaverine', 'achievements': [{'groupId': 'FG000', 'numSubjects': '7'}, {'groupId': 'FG001', 'numSubjects': '17'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '7'}, {'groupId': 'FG001', 'numSubjects': '17'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '0'}, {'groupId': 'FG001', 'numSubjects': '0'}]}]}], 'preAssignmentDetails': '4 enrolled participants declined to participate before being assigned to an intervention and therefore did not receive the intervention.'}, 'baselineCharacteristicsModule': {'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'BG000'}, {'value': '46', 'groupId': 'BG001'}, {'value': '88', 'groupId': 'BG002'}]}], 'groups': [{'id': 'BG000', 'title': 'Papaverine Plus Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nPapaverine: 0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'BG001', 'title': 'Heparin During Procedure, With Rescue Papaverine as Needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.\n\nHeparin: 2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose\n\nRescue papaverine, as needed: If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, {'id': 'BG002', 'title': 'Total', 'description': 'Total of all reporting groups'}], 'measures': [{'title': 'Age, Continuous', 'classes': [{'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'BG000'}, {'value': '46', 'groupId': 'BG001'}, {'value': '88', 'groupId': 'BG002'}]}], 'categories': [{'measurements': [{'value': '24.1', 'spread': '46.9', 'groupId': 'BG000'}, {'value': '24.7', 'spread': '39.5', 'groupId': 'BG001'}, {'value': '24.5', 'spread': '43.0', 'groupId': 'BG002'}]}]}], 'paramType': 'MEAN', 'unitOfMeasure': 'months', 'dispersionType': 'STANDARD_DEVIATION'}, {'title': 'Sex: Female, Male', 'classes': [{'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'BG000'}, {'value': '46', 'groupId': 'BG001'}, {'value': '88', 'groupId': 'BG002'}]}], 'categories': [{'title': 'Female', 'measurements': [{'value': '20', 'groupId': 'BG000'}, {'value': '20', 'groupId': 'BG001'}, {'value': '40', 'groupId': 'BG002'}]}, {'title': 'Male', 'measurements': [{'value': '22', 'groupId': 'BG000'}, {'value': '26', 'groupId': 'BG001'}, {'value': '48', 'groupId': 'BG002'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Race and Ethnicity Not Collected', 'classes': [{'denoms': [{'units': 'Participants', 'counts': [{'value': '0', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '0', 'groupId': 'BG002'}]}], 'categories': [{'measurements': [{'value': '0', 'groupId': 'BG002'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants', 'populationDescription': 'Race and Ethnicity were not collected from any participant.'}, {'title': 'Region of Enrollment', 'classes': [{'title': 'United States', 'denoms': [{'units': 'Participants', 'counts': [{'value': '42', 'groupId': 'BG000'}, {'value': '46', 'groupId': 'BG001'}, {'value': '88', 'groupId': 'BG002'}]}], 'categories': [{'measurements': [{'value': '42', 'groupId': 'BG000'}, {'value': '46', 'groupId': 'BG001'}, {'value': '88', 'groupId': 'BG002'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}], 'populationDescription': 'Baseline data are reported for all participants who completed the study.'}}, 'documentSection': {'largeDocumentModule': {'noSap': True, 'largeDocs': [{'date': '2019-08-05', 'size': 469846, 'label': 'Study Protocol', 'hasIcf': False, 'hasSap': False, 'filename': 'Prot_001.pdf', 'typeAbbrev': 'Prot', 'uploadDate': '2022-10-17T15:31', 'hasProtocol': True}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE4'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'TRIPLE', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR']}, 'primaryPurpose': 'PREVENTION', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 100}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2019-04-01', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2022-10', 'completionDateStruct': {'date': '2020-10-10', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2022-10-26', 'studyFirstSubmitDate': '2019-03-27', 'resultsFirstSubmitDate': '2021-09-29', 'studyFirstSubmitQcDate': '2019-03-27', 'lastUpdatePostDateStruct': {'date': '2022-10-27', 'type': 'ACTUAL'}, 'resultsFirstSubmitQcDate': '2022-10-26', 'studyFirstPostDateStruct': {'date': '2019-03-29', 'type': 'ACTUAL'}, 'resultsFirstPostDateStruct': {'date': '2022-10-27', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2020-10-10', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Number of Participants With Optimal Arterial Waveform', 'timeFrame': '5 minutes after first dose', 'description': 'Optimal waveform was defined as easy aspiration of a blood sample (negative aspiration is easy and draws back freely without cavitation, and takes no more than 30 seconds to draw 1 mL), absence of color change at the catheter insertion site, and presence of a dicrotic notch in the arterial pressure waveform (a distinct dicrotic notch implies system has good resolution at higher frequencies and is not overdamped).'}], 'secondaryOutcomes': [{'measure': 'Number of Participants With Optimal Arterial Waveform', 'timeFrame': '60 minutes after first dose', 'description': 'Optimal waveform was defined as easy aspiration of a blood sample (negative aspiration is easy and draws back freely without cavitation, and takes no more than 30 seconds to draw 1 mL), absence of color change at the catheter insertion site, and presence of a dicrotic notch in the arterial pressure waveform (a distinct dicrotic notch implies system has good resolution at higher frequencies and is not overdamped).'}, {'measure': 'Number of Participants With Suboptimal Waveforms Who Received Rescue Papaverine and for Whom Papaverine Rescued Suboptimal Waveforms', 'timeFrame': '5 minutes after injection of rescue papaverine (about 70 minutes after first study drug dose and about 10 minutes after second study drug dose)', 'description': 'These data were collected only from participants who received rescue papaverine. 7 in the Papaverine plus Heparin arm received rescue papaverine. 17 in the Heparin arm received rescue papaverine.'}]}, 'oversightModule': {'isUsExport': False, 'oversightHasDmc': False, 'isFdaRegulatedDrug': True, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['Heparin', 'Papaverine'], 'conditions': ['Pediatrics', 'Anesthesia', 'Vasospasm']}, 'descriptionModule': {'briefSummary': 'The purpose of this study is to compare intraoperative papaverine plus heparin to heparin alone for prevention of arterial spasm and maintenance of patency of peripheral arterial catheters during surgery in pediatric patients. The hypothesis is that periodic, intraoperative small-volume boluses of diluted papaverine plus heparin in peripheral arterial catheters of pediatric patients will prevent arterial spasm and help maintain patency of arterial catheters during general anesthesia.', 'detailedDescription': 'Peripheral arterial catheters measure blood pressure with every heartbeat and provide valuable information regarding the status of the heart and the overall well being. It is of utmost importance to maintain the utility and patency of these catheters throughout the procedure. As standard procedure, heparin, a blood thinner, is used routinely during the surgical procedure to keep these catheters from clotting, and papaverine, an arterial relaxation agent, is used after surgery to maintain patency of these catheters.\n\nIn this study, participants will be randomized to receive two boluses of papaverine with heparin during the procedure (experimental arm) or heparin alone during the procedure (control arm) \\[in both arms, the first bolus will be administered as soon as the arterial catheter is placed and secured and again one hour after initial bolus\\]. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD'], 'maximumAge': '17 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n\\- All patients age 0-17 years who would require elective placements of arterial catheters based on patients clinical complexity (ex. congenital heart disease) or based on the type of surgery (ex. open heart surgery).\n\nExclusion Criteria:\n\n* Patients with a history of significant liver dysfunction.\n* Patients undergoing liver transplants.\n* Patients with Grade 2 or more of intraventricular hemorrhage.\n* All preterm patients with a gestational age less than 37 weeks at the time of surgery.'}, 'identificationModule': {'nctId': 'NCT03894904', 'briefTitle': 'Papaverine vs Heparin for Peripheral Arterial Catheter Patency in Pediatric Patients', 'organization': {'class': 'OTHER', 'fullName': 'The University of Texas Health Science Center, Houston'}, 'officialTitle': 'Double-Blind, Randomized, Controlled Trial, Small Volume Bolus of Papaverine Versus Heparin to Maintain Patency of Peripheral Arterial Catheters in Pediatric Patients Undergoing Surgical Procedures: Pilot Study', 'orgStudyIdInfo': {'id': 'HSC-MS-19-0059'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Papaverine plus heparin during procedure, with rescue papaverine as needed', 'description': '1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of papaverine (0.12 mg/mL) plus heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.', 'interventionNames': ['Drug: Papaverine', 'Drug: Heparin', 'Drug: Rescue papaverine, as needed']}, {'type': 'ACTIVE_COMPARATOR', 'label': 'Heparin during procedure, with rescue papaverine as needed', 'description': '1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered as soon as the arterial catheter is placed and secured, and a 1 mL bolus of heparin (2 units/mL) in saline (NaCl 0.9%) will be administered one hour after initial bolus. If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second bolus, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.', 'interventionNames': ['Drug: Heparin', 'Drug: Rescue papaverine, as needed']}], 'interventions': [{'name': 'Papaverine', 'type': 'DRUG', 'description': '0.12 mg/mL papaverine administered as soon as the arterial catheter is placed and secured, and 0.12 mg/mL papaverine administered one hour after initial dose', 'armGroupLabels': ['Papaverine plus heparin during procedure, with rescue papaverine as needed']}, {'name': 'Heparin', 'type': 'DRUG', 'description': '2 units/mL heparin administered as soon as the arterial catheter is placed and secured, and 2 units/mL heparin administered one hour after initial dose', 'armGroupLabels': ['Heparin during procedure, with rescue papaverine as needed', 'Papaverine plus heparin during procedure, with rescue papaverine as needed']}, {'name': 'Rescue papaverine, as needed', 'type': 'DRUG', 'description': 'If the arterial catheter spasm/patency or waveform does not improve 10 minutes after the second papaverine plus heparin or heparin only dose, then the anesthesiology care team will consider treating clinically with 0.3 mg of papaverine.', 'armGroupLabels': ['Heparin during procedure, with rescue papaverine as needed', 'Papaverine plus heparin during procedure, with rescue papaverine as needed']}]}, 'contactsLocationsModule': {'locations': [{'zip': '77030', 'city': 'Houston', 'state': 'Texas', 'country': 'United States', 'facility': 'UT Health', 'geoPoint': {'lat': 29.76328, 'lon': -95.36327}}], 'overallOfficials': [{'name': 'Nischal K Gautam, MD', 'role': 'STUDY_DIRECTOR', 'affiliation': 'UTHealth'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'NO'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'The University of Texas Health Science Center, Houston', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Associate Professor', 'investigatorFullName': 'Nischal Krishamurthy Gautam', 'investigatorAffiliation': 'The University of Texas Health Science Center, Houston'}}}}