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{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D001471', 'term': 'Barrett Esophagus'}, {'id': 'D004938', 'term': 'Esophageal Neoplasms'}, {'id': 'D005764', 'term': 'Gastroesophageal Reflux'}], 'ancestors': [{'id': 'D011230', 'term': 'Precancerous Conditions'}, {'id': 'D009369', 'term': 'Neoplasms'}, {'id': 'D004935', 'term': 'Esophageal Diseases'}, {'id': 'D005767', 'term': 'Gastrointestinal Diseases'}, {'id': 'D004066', 'term': 'Digestive System Diseases'}, {'id': 'D005770', 'term': 'Gastrointestinal Neoplasms'}, {'id': 'D004067', 'term': 'Digestive System Neoplasms'}, {'id': 'D009371', 'term': 'Neoplasms by Site'}, {'id': 'D006258', 'term': 'Head and Neck Neoplasms'}, {'id': 'D015154', 'term': 'Esophageal Motility Disorders'}, {'id': 'D003680', 'term': 'Deglutition Disorders'}]}}, 'protocolSection': {'designModule': {'bioSpec': {'retention': 'SAMPLES_WITH_DNA', 'description': 'approx. 24 ml blood, 1-8 esophageal mucosal pinch specimens and or esophageal brushings'}, 'studyType': 'OBSERVATIONAL', 'designInfo': {'timePerspective': 'PROSPECTIVE', 'observationalModel': 'COHORT'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 600}}, 'statusModule': {'overallStatus': 'ACTIVE_NOT_RECRUITING', 'startDateStruct': {'date': '2002-05-01', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2025-12', 'completionDateStruct': {'date': '2026-06-01', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2025-12-11', 'studyFirstSubmitDate': '2007-02-02', 'studyFirstSubmitQcDate': '2007-02-02', 'lastUpdatePostDateStruct': {'date': '2025-12-16', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2007-02-06', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2023-05-01', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'early predictors of esophageal cancer', 'timeFrame': '3', 'description': 'To see if changes in certain areas of DNA can predict risk for esophageal cancer'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ["Barrett's esophagus", 'gastroesophageal reflux disease (GERD)', 'esophageal cancer', 'DNA methylation'], 'conditions': ['Barrett Esophagus', 'Esophageal Neoplasm', 'Gastroesophageal Reflux']}, 'descriptionModule': {'briefSummary': "The purpose of this study is to determine if there are any early changes in DNA markers of blood and esophageal tissue in people with gastric reflux, Barrett's esophagus or esophageal cancer that can warn of a progression to esophageal cancer.", 'detailedDescription': "Patients with Barrett's esophagus (BE) have an increased risk of esophageal adenocarcinoma which is 40-125 fold higher than in the general population. However, the current techniques of detecting dysplasia and observing abnormal p53 immunohistochemical staining are not accurate or reliable methods for determining which BE patients will progress to cancer. DNA hypermethylation is an epigenetic process that occurs in the promoter region of certain genes, resulting in suppression of gene expression. Inactivation of specific genes via hypermethylation has been highly associated with cancer.\n\nThe primary objective of this research is to determine whether DNA hypermethylation is a biomarker that will predict which patients with BE are likely to progress to adenocarcinoma. Patients with BE and/or esophageal adenocarcinoma who undergo endoscopy at the Johns Hopkins Hospital will comprise the cohort of subjects. Gene hypermethylation will be assessed by performing methylation-specific Polymerase Chain Reaction (PCR) on a panel of 8 cancer-related genes.\n\nSpecific Aim 1: To compare the prevalence of gene hypermethylation in BE patients with different grades of dysplasia and/or adenocarcinoma, using archived specimens.\n\nSpecific Aim 2: To determine whether the presence of gene hypermethylation in initial biopsies of BE patients is associated with progression to adenocarcinoma, using archived specimens. To compare gene hypermethylation with currently available markers for neoplastic progression.\n\nSpecific Aim 3: To determine whether methylated DNA from BE and/or adenocarcinoma can be detected in the peripheral blood of patients, by comparing methylation profiles of esophageal biopsy specimens with peripheral blood samples taken at the same time in prospectively enrolled patients.\n\nIf hypermethylation of one or more genes is detected at an early stage in BE patients who later progress to adenocarcinoma, hypermethylation could be used as an early predictor for adenocarcinoma even before pathologic changes are evident. Furthermore, this research will help determine the specific genetic events that occur in the neoplastic transformation from BE to adenocarcinoma.\n\nThe long-term goal of this project is to determine whether hypermethylation can identify BE patients who are at high risk for neoplastic progression, thus allowing for early intervention in the form of more frequent endoscopic surveillance, chemoprevention, ablative therapy, or surgery."}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '95 Years', 'minimumAge': '18 Years', 'samplingMethod': 'NON_PROBABILITY_SAMPLE', 'studyPopulation': "People scheduled for endoscopy at Johns Hopkins who have esophageal cancer, Barrett's esophagus or gastro-esophageal reflux disease", 'healthyVolunteers': True, 'eligibilityCriteria': "Inclusion Criteria:\n\n* People who are undergoing upper endoscopy as part of their medical care with a history of esophageal cancer, Barrett's esophagus, or upper gastrointestinal symptoms.\n\nExclusion Criteria:\n\n* People who are are currently having chemotherapy, or who have completed chemotherapy within the last 4 weeks.\n* People who have ever had radiation treatments to their chest."}, 'identificationModule': {'nctId': 'NCT00431756', 'acronym': 'BE', 'briefTitle': "Novel Biomarkers in the Neoplastic Progression of Barrett's Esophagus", 'organization': {'class': 'OTHER', 'fullName': 'Johns Hopkins University'}, 'officialTitle': "Novel Biomarkers in the Neoplastic Progression of Barrett's Esophagus (Previously: Methylation in Cancer Progression of Barrett's Esophagus", 'orgStudyIdInfo': {'id': 'IRB00026956'}, 'secondaryIdInfos': [{'id': '1K23DK068149', 'link': 'https://reporter.nih.gov/quickSearch/1K23DK068149', 'type': 'NIH'}]}, 'contactsLocationsModule': {'locations': [{'zip': '21287', 'city': 'Baltimore', 'state': 'Maryland', 'country': 'United States', 'facility': 'Johns Hopkins Hospital', 'geoPoint': {'lat': 39.29038, 'lon': -76.61219}}], 'overallOfficials': [{'name': 'Marcia Canto, M.D.', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Johns Hopkins University'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Johns Hopkins University', 'class': 'OTHER'}, 'collaborators': [{'name': 'National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)', 'class': 'NIH'}, {'name': 'National Cancer Institute (NCI)', 'class': 'NIH'}], 'responsibleParty': {'type': 'SPONSOR'}}}}