Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D003930', 'term': 'Diabetic Retinopathy'}], 'ancestors': [{'id': 'D012164', 'term': 'Retinal Diseases'}, {'id': 'D005128', 'term': 'Eye Diseases'}, {'id': 'D003925', 'term': 'Diabetic Angiopathies'}, {'id': 'D014652', 'term': 'Vascular Diseases'}, {'id': 'D002318', 'term': 'Cardiovascular Diseases'}, {'id': 'D048909', 'term': 'Diabetes Complications'}, {'id': 'D003920', 'term': 'Diabetes Mellitus'}, {'id': 'D004700', 'term': 'Endocrine System Diseases'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'D000068258', 'term': 'Bevacizumab'}], 'ancestors': [{'id': 'D061067', 'term': 'Antibodies, Monoclonal, Humanized'}, {'id': 'D000911', 'term': 'Antibodies, Monoclonal'}, {'id': 'D000906', 'term': 'Antibodies'}, {'id': 'D007136', 'term': 'Immunoglobulins'}, {'id': 'D007162', 'term': 'Immunoproteins'}, {'id': 'D001798', 'term': 'Blood Proteins'}, {'id': 'D011506', 'term': 'Proteins'}, {'id': 'D000602', 'term': 'Amino Acids, Peptides, and Proteins'}, {'id': 'D012712', 'term': 'Serum Globulins'}, {'id': 'D005916', 'term': 'Globulins'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'count': 20}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2006-12'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2007-01', 'completionDateStruct': {'date': '2007-03'}, 'lastUpdateSubmitDate': '2007-03-12', 'studyFirstSubmitDate': '2007-01-16', 'studyFirstSubmitQcDate': '2007-01-16', 'lastUpdatePostDateStruct': {'date': '2007-03-13', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2007-01-17', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'expression level of VEFG'}, {'measure': 'PEDG'}, {'measure': 'Factor VIII'}], 'secondaryOutcomes': [{'measure': 'complication rate'}]}, 'conditionsModule': {'keywords': ['intravitreal bevacizumab', 'proliferative diabetic retinopathy', 'VEGF', 'PEDF'], 'conditions': ['Diabetic Retinopathy']}, 'referencesModule': {'references': [{'pmid': '16829817', 'type': 'BACKGROUND', 'citation': 'Chen E, Park CH. Use of intravitreal bevacizumab as a preoperative adjunct for tractional retinal detachment repair in severe proliferative diabetic retinopathy. Retina. 2006 Jul-Aug;26(6):699-700. doi: 10.1097/01.iae.0000225351.87205.69. No abstract available.'}, {'pmid': '17011869', 'type': 'BACKGROUND', 'citation': 'Mason JO 3rd, Nixon PA, White MF. Intravitreal injection of bevacizumab (Avastin) as adjunctive treatment of proliferative diabetic retinopathy. Am J Ophthalmol. 2006 Oct;142(4):685-8. doi: 10.1016/j.ajo.2006.04.058.'}, {'pmid': '16604386', 'type': 'BACKGROUND', 'citation': 'Matsuoka M, Ogata N, Minamino K, Matsumura M. Expression of pigment epithelium-derived factor and vascular endothelial growth factor in fibrovascular membranes from patients with proliferative diabetic retinopathy. Jpn J Ophthalmol. 2006 Mar-Apr;50(2):116-20. doi: 10.1007/s10384-005-0294-9.'}, {'pmid': '17011951', 'type': 'BACKGROUND', 'citation': 'Avery RL, Pearlman J, Pieramici DJ, Rabena MD, Castellarin AA, Nasir MA, Giust MJ, Wendel R, Patel A. Intravitreal bevacizumab (Avastin) in the treatment of proliferative diabetic retinopathy. Ophthalmology. 2006 Oct;113(10):1695.e1-15. doi: 10.1016/j.ophtha.2006.05.064.'}, {'pmid': '16815267', 'type': 'BACKGROUND', 'citation': 'Oshima Y, Sakaguchi H, Gomi F, Tano Y. Regression of iris neovascularization after intravitreal injection of bevacizumab in patients with proliferative diabetic retinopathy. Am J Ophthalmol. 2006 Jul;142(1):155-8. doi: 10.1016/j.ajo.2006.02.015.'}, {'pmid': '16680105', 'type': 'BACKGROUND', 'citation': 'Bakri SJ, Donaldson MJ, Link TP. Rapid regression of disc neovascularization in a patient with proliferative diabetic retinopathy following adjunctive intravitreal bevacizumab. Eye (Lond). 2006 Dec;20(12):1474-5. doi: 10.1038/sj.eye.6702364. Epub 2006 May 5. No abstract available.'}, {'pmid': '16508426', 'type': 'BACKGROUND', 'citation': 'Spaide RF, Fisher YL. Intravitreal bevacizumab (Avastin) treatment of proliferative diabetic retinopathy complicated by vitreous hemorrhage. Retina. 2006 Mar;26(3):275-8. doi: 10.1097/00006982-200603000-00004.'}]}, 'descriptionModule': {'briefSummary': 'Recently, intravitreal bevacizumab (Avastin) injection has gained popularity as a potential treatment of intraocular neovascularization (CNV) associated with age related macular degeneration and diabetic retinopathy. The efficacy of the drug is thought to be related with its pharmacologic blockade of VEGF.\n\nThe purpose of this study is to determine the effect of the intravitreal bevacizumab on the fibrovascular membrane associated with proliferative diabetic retinopathy by objective histologic evaluation.\n\nThe patients scheduled for vitrectomy for tractional fibrovascular membrane due to proliferative diabetic retinopathy will be randomized into two treatment groups. The one will receive conventional vitrectomy and the other group will receive intravitreal bevacizumab injection one week before the scheduled vitrectomy. The fibrovascular membrane will be excised during surgery and fixated for histologic examinations. The expression of VEGF and PEDF, a potent inhibitor of angiogenesis, will be evaluated in the fibrovascular membrane by immunohistochemistry. The results will be compared between two treatment groups.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Tractional retinal detachment recently involving the macula with fibrovascular membrane due to proliferative diabetic retinopathy\n* Severe fibrovascular proliferation progressing after appropriate panretinal photocoagulation\n\nExclusion Criteria:\n\n* Uncontrolled systemic hypertension\n* Recent history of myocardiac infarction within 6 months\n* Recent history of cerebrovascular accident within 6 months'}, 'identificationModule': {'nctId': 'NCT00423059', 'briefTitle': 'Intravitreal Bevacizumab for Proliferative Diabetic Retinopathy', 'organization': {'class': 'OTHER', 'fullName': 'Yonsei University'}, 'officialTitle': 'Histologic Changes of Fibrovascular Membrane Associated With Proliferative Diabetic Retinopathy After Intravitreal Bevacizumab (AvastinĀ®)', 'orgStudyIdInfo': {'id': 'koh01'}}, 'armsInterventionsModule': {'interventions': [{'name': 'bevacizumab', 'type': 'DRUG'}]}, 'contactsLocationsModule': {'locations': [{'zip': '120-752', 'city': 'Seoul', 'country': 'South Korea', 'facility': 'Department of Ophthalmology, Yonsei University College of Medicine', 'geoPoint': {'lat': 37.566, 'lon': 126.9784}}], 'overallOfficials': [{'name': 'Hyoung Jun Koh', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Department of Ophthalmology, Yonsei University College of Medicine'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Yonsei University', 'class': 'OTHER'}}}}