Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D007676', 'term': 'Kidney Failure, Chronic'}], 'ancestors': [{'id': 'D051436', 'term': 'Renal Insufficiency, Chronic'}, {'id': 'D051437', 'term': 'Renal Insufficiency'}, {'id': 'D007674', 'term': 'Kidney Diseases'}, {'id': 'D014570', 'term': 'Urologic Diseases'}, {'id': 'D052776', 'term': 'Female Urogenital Diseases'}, {'id': 'D005261', 'term': 'Female Urogenital Diseases and Pregnancy Complications'}, {'id': 'D000091642', 'term': 'Urogenital Diseases'}, {'id': 'D052801', 'term': 'Male Urogenital Diseases'}, {'id': 'D002908', 'term': 'Chronic Disease'}, {'id': 'D020969', 'term': 'Disease Attributes'}, {'id': 'D010335', 'term': 'Pathologic Processes'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'PREVENTION', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 60}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2014-06', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2019-06', 'completionDateStruct': {'date': '2017-09', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2019-06-04', 'studyFirstSubmitDate': '2014-04-10', 'studyFirstSubmitQcDate': '2014-04-10', 'lastUpdatePostDateStruct': {'date': '2019-06-06', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2014-04-14', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2017-09', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Primary safety endpoint: Freedom from severe (i.e. performance of daily activities is compromised) or unanticipated device related adverse events', 'timeFrame': '6 months'}], 'secondaryOutcomes': [{'measure': 'Secondary efficacy endpoint: Percentage of AVF physiologically matured', 'timeFrame': '3 months', 'description': 'Successful physiological maturation was defined by a minimum of 5 mm cephalic vein diameter with volume outflow greater than 500 mL/min confirmed by color duplex spectral analysis'}, {'measure': 'Secondary efficacy endpoint: Primary patency of the study AVF, defined as percentage of patent AVF free from surgical or endovascular interventions', 'timeFrame': '6 months'}, {'measure': 'Secondary efficacy endpoint: Cephalic vein outflow as assess with Doppler ultrasound', 'timeFrame': '1, 3, and 6 months'}, {'measure': 'Secondary efficacy endpoint: Secondary patency of the study AVF, defined as percentage of patent AVF following surgical or endovascular interventions', 'timeFrame': '6 months'}]}, 'conditionsModule': {'conditions': ['Vascular Access', 'End Stage Renal Disease']}, 'referencesModule': {'references': [{'pmid': '31447072', 'type': 'DERIVED', 'citation': 'Karydis N, Bevis P, Beckitt T, Silverberg D, Halak M, Calder F. An Implanted Blood Vessel Support Device for Arteriovenous Fistulas: A Randomized Controlled Trial. Am J Kidney Dis. 2020 Jan;75(1):45-53. doi: 10.1053/j.ajkd.2019.05.023. Epub 2019 Aug 22.'}]}, 'descriptionModule': {'briefSummary': 'This study is a prospective, multi center, randomized, controlled study of the VasQ in arteriovenous fistulas. The VasQ constraints and directs the geometrical parameters of the fistula as well as the vascular diameter and gradient in the vicinity of the AV shunt. These geometrical constraints direct flow and influence hemodynamics, and hence minimize turbulence and promote laminar flow. The device is designed to improve short term maturation and long term patency of the fistula. The VasQ is a permanent implant intended for use as a subcutaneous arteriovenous conduit support for vascular access.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'minimumAge': '50 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Patients referred for creation of a new brachiocephalic fistula who consent to take part in the study.\n* Aged \\> 18\n* Male and female participants\n* Patients willing and able to attend follow up visits over a period of 6 months\n\nExclusion Criteria:\n\n* Patients who require revision surgery.\n* Having had previous arteriovenous fistula surgery is not a contraindication to recruitment provided the new procedure is not revision surgery\n* Target arteries smaller than 3 mm in diameter\n* Target vein smaller than 3 mm in diameter\n* Stenotic veins on the side of surgery as diagnosed on pre-op ultrasound\n* Patients with prior central venous stenosis or obstruction on the side of surgery\n* Depth of vein greater than 8 mm (on US) on side of surgery\n* Known coagulation disorder\n* Prior steal\n* Known allergy to nitinol\n* Life expectancy less than 6 months\n* Inability to give consent and/or comply with the study follow up schedule\n* Women of child bearing age'}, 'identificationModule': {'nctId': 'NCT02112669', 'briefTitle': 'A Multi Center, Study to Evaluate the Safety and Efficacy of the VasQ External Support Device for Arteriovenous Fistulas', 'organization': {'class': 'INDUSTRY', 'fullName': 'Laminate Medical Technologies'}, 'officialTitle': 'A Prospective, Multi Center, Study to Evaluate the Safety and Efficacy of the VasQ External Support Device for Brachiocephalic Arteriovenous Fistula', 'orgStudyIdInfo': {'id': 'Laminate CD0006'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'AV fistula with VasQ', 'description': 'Implant VasQ over AV fistula', 'interventionNames': ['Device: VasQ']}, {'type': 'NO_INTERVENTION', 'label': 'AV fistula', 'description': 'AV fistula without any adjunct device'}], 'interventions': [{'name': 'VasQ', 'type': 'DEVICE', 'armGroupLabels': ['AV fistula with VasQ']}]}, 'contactsLocationsModule': {'locations': [{'zip': '52621', 'city': 'Ramat Gan', 'country': 'Israel', 'facility': 'Sheba Medical Center', 'geoPoint': {'lat': 32.08227, 'lon': 34.81065}}, {'zip': 'BS10 5NB', 'city': 'Bristol', 'country': 'United Kingdom', 'facility': 'Southmead Hospital', 'geoPoint': {'lat': 51.45523, 'lon': -2.59665}}, {'zip': 'SE1 9RT', 'city': 'London', 'country': 'United Kingdom', 'facility': "Guy's Hospital", 'geoPoint': {'lat': 51.50853, 'lon': -0.12574}}, {'city': 'London', 'country': 'United Kingdom', 'facility': "St George's Healthcare", 'geoPoint': {'lat': 51.50853, 'lon': -0.12574}}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Laminate Medical Technologies', 'class': 'INDUSTRY'}, 'responsibleParty': {'type': 'SPONSOR'}}}}