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{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D013274', 'term': 'Stomach Neoplasms'}], 'ancestors': [{'id': 'D005770', 'term': 'Gastrointestinal Neoplasms'}, {'id': 'D004067', 'term': 'Digestive System Neoplasms'}, {'id': 'D009371', 'term': 'Neoplasms by Site'}, {'id': 'D009369', 'term': 'Neoplasms'}, {'id': 'D004066', 'term': 'Digestive System Diseases'}, {'id': 'D005767', 'term': 'Gastrointestinal Diseases'}, {'id': 'D013272', 'term': 'Stomach Diseases'}]}}, 'protocolSection': {'designModule': {'bioSpec': {'retention': 'SAMPLES_WITHOUT_DNA', 'description': 'Samples after biopsy or resection are to be retained.'}, 'studyType': 'OBSERVATIONAL', 'designInfo': {'timePerspective': 'PROSPECTIVE', 'observationalModel': 'CASE_ONLY'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 146}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2009-12'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2012-01', 'completionDateStruct': {'date': '2011-12', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2012-01-11', 'studyFirstSubmitDate': '2012-01-08', 'studyFirstSubmitQcDate': '2012-01-11', 'lastUpdatePostDateStruct': {'date': '2012-01-12', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2012-01-12', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2011-10', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'diagnosis accuracy of ME-NBI', 'timeFrame': 'in 2 weeks after ME-NBI examination', 'description': 'ME-NBI diagnosis was made during real-time endoscopy procedure and reviewed in two weeks after ME-NBI examination. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of ME-NBI diagnosis compared with histology were measured.'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ['early gastric cancer', 'stomach neoplasms', 'magnifying endoscopy', 'narrow band imaging'], 'conditions': ['Stomach Neoplasms']}, 'descriptionModule': {'briefSummary': 'Magnifying endoscopy with narrow-band imaging (ME-NBI) can emphasize surface pattern and microvascular architecture of the gastric mucosa.However,the usefulness and criteria of NBI for differential diagnosis among early gastric cancers (EGC) have not been fully established.The study is based on the hypothesis:\n\n1. ME-NBI is useful in distinguishing EGC from other gastric lesions\n2. ME-NBI is useful in further differential diagnosis among EGCs.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'samplingMethod': 'NON_PROBABILITY_SAMPLE', 'studyPopulation': 'patients with gastric lesions suspected of early gastric malignancy', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* patients with gastric lesions which were detected by conventional screening endoscopy and suspected of early malignancy.\n\nExclusion Criteria:\n\n* advanced gastric cancer or any other malignancy;\n* patients under unsuitable conditions for examination or treatment, such as acute upper gastrointestinal bleeding, noncorrectable coagulopathy, severe systemic disease, etc;\n* inability to provide informed consent;\n* inability to provide histology of resected specimens after endoscopic treatment or surgery.'}, 'identificationModule': {'nctId': 'NCT01508520', 'briefTitle': 'a Prospective Study on the Efficacy of Magnifying Endoscopy With Narrow-band Imaging in Diagnosing Gastric Lesions', 'organization': {'class': 'OTHER', 'fullName': 'Shanghai Jiao Tong University School of Medicine'}, 'officialTitle': 'a Prospective Study on the Efficacy of Magnifying Endoscopy With Narrow-band Imaging in Diagnosing Gastric Lesions', 'orgStudyIdInfo': {'id': 'rjyyxhk6056'}}, 'contactsLocationsModule': {'overallOfficials': [{'name': 'Xiaobo Li, MD. Ph.D', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Shanghai Ren Ji Hospital'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Xiaobo Li', 'class': 'OTHER'}, 'responsibleParty': {'type': 'SPONSOR_INVESTIGATOR', 'investigatorTitle': 'Shanghai Institute of Digestive Disease,Renji Hospital, Shanghai Jiao Tong University School of Medicine', 'investigatorFullName': 'Xiaobo Li', 'investigatorAffiliation': 'Shanghai Jiao Tong University School of Medicine'}}}}