Ignite Creation Date:
2025-12-25 @ 1:11 AM
Ignite Modification Date:
2025-12-25 @ 11:22 PM
Study NCT ID:
NCT00006393
Status:
UNKNOWN
Last Update Posted:
2005-06-24
First Post:
2000-10-04
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Genetic Study of the FBN1 Gene and Fibrillin-1 Abnormalities in Choctaw Native Americans and Other Patients With Systemic Sclerosis
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D012595', 'term': 'Scleroderma, Systemic'}, {'id': 'D001168', 'term': 'Arthritis'}, {'id': 'D003240', 'term': 'Connective Tissue Diseases'}, {'id': 'D035583', 'term': 'Rare Diseases'}], 'ancestors': [{'id': 'D017437', 'term': 'Skin and Connective Tissue Diseases'}, {'id': 'D012871', 'term': 'Skin Diseases'}, {'id': 'D007592', 'term': 'Joint Diseases'}, {'id': 'D009140', 'term': 'Musculoskeletal Diseases'}, {'id': 'D020969', 'term': 'Disease Attributes'}, {'id': 'D010335', 'term': 'Pathologic Processes'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'studyType': 'OBSERVATIONAL', 'enrollmentInfo': {'count': 80}}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'RECRUITING', 'startDateStruct': {'date': '1998-07'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2003-12', 'lastUpdateSubmitDate': '2005-06-23', 'studyFirstSubmitDate': '2000-10-04', 'studyFirstSubmitQcDate': '2000-10-04', 'lastUpdatePostDateStruct': {'date': '2005-06-24', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2000-10-05', 'type': 'ESTIMATED'}}, 'conditionsModule': {'keywords': ['arthritis & connective tissue diseases', 'rare disease', 'systemic sclerosis'], 'conditions': ['Systemic Sclerosis']}, 'descriptionModule': {'briefSummary': 'OBJECTIVES: I. Determine whether defects in fibrillin-1 cellular processing are present in the tsk1 mouse model that carries a known FBN1 gene rearrangement and in a population of Choctaw Native American patients with systemic sclerosis who have a strong genetic predisposition to the disease.\n\nII. Determine the ultrastructural features of fibrillin-1 in these patients. III. Screen the FBN1 gene for mutations beginning at the regions homologous to the tsk1 duplication and latent transforming growth factor binding proteins in these patients and in an unaffected Choctaw control group.\n\nIV. Determine the correlation between fibrillin-1 abnormalities and clinical presentation, autoantibodies, and ethnicity.', 'detailedDescription': 'PROTOCOL OUTLINE:\n\nPatients undergo punch skin biopsy obtained from the upper arm or back. Studies of fibrillin-1 synthesis and cellular processing, and FBN1 mutational analysis, linkage analysis, and genetic mapping are performed on the tissue samples. Patients from all major US ethnic groups (Caucasian, Hispanic, African Americans) will be recruited for the study in the next 2 years.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'minimumAge': '0 Years', 'healthyVolunteers': True, 'eligibilityCriteria': 'PROTOCOL ENTRY CRITERIA:\n\n--Disease Characteristics--\n\nDiagnosis of systemic sclerosis in accordance with the American College of Rheumatology preliminary criteria\n\nPositive for systemic sclerosis antibodies (e.g., anticentromere, antitopo, antifibrillarin, or antiRNA polymerase)'}, 'identificationModule': {'nctId': 'NCT00006393', 'briefTitle': 'Genetic Study of the FBN1 Gene and Fibrillin-1 Abnormalities in Choctaw Native Americans and Other Patients With Systemic Sclerosis', 'organization': {'class': 'NIH', 'fullName': 'National Center for Research Resources (NCRR)'}, 'officialTitle': 'Genetic Study of the FBN1 Gene and Fibrillin-1 Abnormalities in Choctaw Native Americans and Other Patients With Systemic Sclerosis', 'orgStudyIdInfo': {'id': 'NCRR-M01RR02558-0104'}, 'secondaryIdInfos': [{'id': 'UT-H-HSC-MS-96-206'}]}, 'contactsLocationsModule': {'locations': [{'zip': '77030', 'city': 'Houston', 'state': 'Texas', 'status': 'RECRUITING', 'country': 'United States', 'contacts': [{'name': 'Filemon K. Tan', 'role': 'CONTACT', 'phone': '713-500-6892'}], 'facility': 'University of Texas- Houston Medical School', 'geoPoint': {'lat': 29.76328, 'lon': -95.36327}}], 'overallOfficials': [{'name': 'Filemon Tan, M.D.', 'role': 'STUDY_CHAIR', 'affiliation': 'University of Texas'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'National Center for Research Resources (NCRR)', 'class': 'NIH'}, 'collaborators': [{'name': 'University of Texas', 'class': 'OTHER'}]}}}