Ignite Creation Date:
2025-12-24 @ 6:50 PM
Ignite Modification Date:
2026-01-02 @ 2:24 AM
Study NCT ID:
NCT00005657
Status:
COMPLETED
Last Update Posted:
2017-07-02
First Post:
2000-05-06
Is Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Genetics of Hepatitis C Virus Infection
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D006526', 'term': 'Hepatitis C'}, {'id': 'D008107', 'term': 'Liver Diseases'}, {'id': 'D019698', 'term': 'Hepatitis C, Chronic'}], 'ancestors': [{'id': 'D000086982', 'term': 'Blood-Borne Infections'}, {'id': 'D003141', 'term': 'Communicable Diseases'}, {'id': 'D007239', 'term': 'Infections'}, {'id': 'D006525', 'term': 'Hepatitis, Viral, Human'}, {'id': 'D014777', 'term': 'Virus Diseases'}, {'id': 'D018178', 'term': 'Flaviviridae Infections'}, {'id': 'D012327', 'term': 'RNA Virus Infections'}, {'id': 'D006505', 'term': 'Hepatitis'}, {'id': 'D004066', 'term': 'Digestive System Diseases'}, {'id': 'D006521', 'term': 'Hepatitis, Chronic'}, {'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': {'studyType': 'OBSERVATIONAL', 'enrollmentInfo': {'type': 'ACTUAL', 'count': 870}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2000-05-04'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2011-04-19', 'completionDateStruct': {'date': '2011-04-19'}, 'lastUpdateSubmitDate': '2017-06-30', 'studyFirstSubmitDate': '2000-05-06', 'studyFirstSubmitQcDate': '2000-05-06', 'lastUpdatePostDateStruct': {'date': '2017-07-02', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2000-05-08', 'type': 'ESTIMATED'}}, 'conditionsModule': {'keywords': ['Cytokines', 'Treatment', 'Genetic Polymorphism', 'Chronic Hepatitis C', 'Mononuclear Cells'], 'conditions': ['Hepatitis C', 'Liver Disease']}, 'referencesModule': {'references': [{'pmid': '2300741', 'type': 'BACKGROUND', 'citation': 'Todd JR, West BC, McDonald JC. Human leukocyte antigen and leprosy: study in northern Louisiana and review. Rev Infect Dis. 1990 Jan-Feb;12(1):63-74. doi: 10.1093/clinids/12.1.63.'}, {'pmid': '1865923', 'type': 'BACKGROUND', 'citation': 'Hill AV, Allsopp CE, Kwiatkowski D, Anstey NM, Twumasi P, Rowe PA, Bennett S, Brewster D, McMichael AJ, Greenwood BM. Common west African HLA antigens are associated with protection from severe malaria. Nature. 1991 Aug 15;352(6336):595-600. doi: 10.1038/352595a0.'}, {'pmid': '9597143', 'type': 'BACKGROUND', 'citation': 'Hill AV. The immunogenetics of human infectious diseases. Annu Rev Immunol. 1998;16:593-617. doi: 10.1146/annurev.immunol.16.1.593.'}]}, 'descriptionModule': {'briefSummary': 'The diverse clinical syndromes associated with hepatitis C underscore the multifactorial and polygenic nature of HCV infection. Both viral and host factors likely contribute to variations in infection outcome, disease susceptibility and progression, and treatment response. This protocol will focus on the immunogenetics of HCV infection. Various candidate genes, most of them related to host immune response in microbial infection, have defined genetic polymorphisms that have been associated with variable manifestations of infections including malaria, tuberculosis, leprosy, AIDS and hepatitis B. In this proposal, we plan to collect peripheral blood mononuclear cells as a source of DNA from approximately 1500 patients with HCV infection, analyze genetic polymorphisms of various candidate genes in association with viral clearance, disease progression or treatment response, and characterize the functional consequences of these polymorphisms in patients with well-defined clinical sequelae of HCV infection. We will also collect blood from patients with other forms of liver diseases (approximately 300) or normal volunteers (approximately 200) as controls. By identifying relevant host factors genetically and investigating their molecular interactions with HCV, we may gain additional insights into HCV pathogenesis and uncover new potential targets for vaccine development and treatment intervention.', 'detailedDescription': 'The diverse clinical syndromes associated with hepatitis C underscore the multifactorial and polygenic nature of HCV infection. Both viral and host factors likely contribute to variations in infection outcome, disease susceptibility and progression, and treatment response. This protocol will focus on the immunogenetics of HCV infection. Various candidate genes, most of them related to host immune response in microbial infection, have defined genetic polymorphisms that have been associated with variable manifestations of infections including malaria, tuberculosis, leprosy, AIDS and hepatitis B. In this proposal, we plan to collect peripheral blood mononuclear cells as a source of DNA from approximately 1500 patients with HCV infection, analyze genetic polymorphisms of various candidate genes in association with viral clearance, disease progression or treatment response, and characterize the functional consequences of these polymorphisms in patients with well-defined clinical sequelae of HCV infection. We will also collect blood from patients with other forms of liver diseases (approximately 300) or normal volunteers (approximately 200) as controls. By identifying relevant host factors genetically and investigating their molecular interactions with HCV, we may gain additional insights into HCV pathogenesis and uncover new potential targets for vaccine development and treatment intervention.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'minimumAge': '2 Years', 'healthyVolunteers': False, 'eligibilityCriteria': "* INCLUSION CRITERIA:\n\nPatients who have recovered from past HCV exposure (positive anti-HCV but negative HCV viremia and absent liver disease).\n\nPatients with asymptomatic HCV infection (positive anti-HCV and HCV viremia, but persistently normal or minimally elevated ALT and normal or mild disease on liver biopsy).\n\nPatients with active liver disease (positive anti-HCV and HCV viremia, persistently elevated ALT and/or moderate disease on liver biopsy).\n\nPatients with active extrahepatic manifestations of HCV infection (cryoglobulinemia, glomerulonephritis, vasculitis, etc.).\n\nPatients with rapidly progressive, severe liver disease and/or hepatocellular carcinoma.\n\nPatients who have undergone or are undergoing treatment.\n\nPatients from a single-source outbreak of HCV infections (in which the viral factors should be identical and the patients are often from a homogeneous population with less genetic variability).\n\nHCV infected family members and twins.\n\nPatients with other forms of liver disease including HBV infection, primary biliary cirrhosis, autoimmune hepatitis, nonalcoholic steatohepatitis, hemochromatosis, and Wilson's Disease, as well as normal volunteers.\n\nEXCLUSION CRITERIA:\n\nAdult subjects with a Hct of less than 30 or pediatric subjects less than 25 will be excluded.\n\nChildren with HCV infection younger than 2 years of age will be excluded.\n\nUnaffected healthy volunteers who are minors are not eligible for this study."}, 'identificationModule': {'nctId': 'NCT00005657', 'briefTitle': 'Genetics of Hepatitis C Virus Infection', 'organization': {'class': 'NIH', 'fullName': 'National Institutes of Health Clinical Center (CC)'}, 'officialTitle': 'Immunogenetics of Hepatitis C Virus Infection', 'orgStudyIdInfo': {'id': '000125'}, 'secondaryIdInfos': [{'id': '00-DK-0125'}]}, 'contactsLocationsModule': {'locations': [{'zip': '20892', 'city': 'Bethesda', 'state': 'Maryland', 'country': 'United States', 'facility': 'National Institutes of Health Clinical Center, 9000 Rockville Pike', 'geoPoint': {'lat': 38.98067, 'lon': -77.10026}}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)', 'class': 'NIH'}}}}