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Home > "S" Clinical Trials Conditions > Study of Heritable Connective Tissue Disorders  Study of Heritable Connective Tissue Disorders
Study of Heritable Connective Tissue Disorders
For Condition: Connective Tissue Disease,Dissecting Aneurysm,Ehlers Danlos Syndrome,Marfan Syndrome,Nail Patella Syndrome
Status: Completed
Sponsor(s): National Human Genome Research Institute (NHGRI) ,
Synopsis: The purposes of this study are to identify the genes responsible for inherited connective tissue disorders and learn about the range of medical problems they cause. It will investigate whether specific gene changes cause specific medical problems and will establish diagnostic criteria (signs and symptoms) for the individual syndromes. Children and adults with a known or suspected inherited connective tissue disorder (Marfan, Ehlers-Danlos or Stickler syndrome, or other closely related disorders) and their family members may be eligible for this study. Patients enrolled in the study will have a medical history, physical examination and blood tests, as well as other procedures that may include: - Echocardiogram (ultrasound of the heart) - X-rays and other imaging studies, such as magnetic resonance imaging (MRI) or computerized tomography (CT) scans - Lung function studies - Urine tests - Skin biopsy (removal of a small piece of tissue, under local anesthetic, for microscopic examination) - Examination by various specialists (e.g., in ophthalmology, gastroenterology, rehabilitation medicine) as needed - Questionnaires regarding chronic pain and fatigue, quality of life, and the impact of the connective tissue disorder on the patient and family. (Patients who wish to enroll but cannot travel to NIH may have a more limited participation, including review of medical records, telephone interview regarding personal and family history, and collection of a specimen (blood, skin biopsy, or other) for genetic testing. Patients will be notified of genetic testing results that show a change responsible for their connective tissue disorder. If they wish, the information will also be sent to their local health care provider, along with recommendations for additional tests or treatment options. No treatment is offered as part of this study. Participating family members who do not themselves have a connective tissue disorder will provide a small blood sample for gene testing and be interviewed by telephone about their personal and family health history. Those whose blood test results show a gene change associated with a connective tissue disorder will be invited to NIH for a discussion of the findings or referred to a genetic center in their area.
Details: We will investigate the clinical manifestations and molecular genetic defects of heritable connective tissue disorders, concentrating on the Marfan, Stickler, and Ehlers-Danlos syndromes. Although each of these conditions has been known for many years, the full spectrum of the associated phenotypes continues to be expanded and the genetic etiology of these conditions has not been completely elucidated. In addition, many patients have features overlapping two or more of the described syndromes, precluding unequivocal diagnosis. The goals of this study are to further define and characterize the full phenotype and natural history of these disorders, and to perform genetic linkage, gene identification, mutation detection, and genotype/phenotype correlations in affected individuals and families. Individuals suspected to have Marfan, Stickler or Ehlers-Danlos syndrome or a closely related disorder, as well as interested family members, will be enrolled. Participants will undergo genetic analyses and periodic clinical assessment. The expected outcomes will be improved clinical descriptions of the conditions and gene and mutation identification with analysis of genotype/phenotype correlations.
Eligibility:
Study Type: Observational, Natural History
Minimum Age/Maximum Age: /
Genders: Both
Protocol Entry Criteria: INCLUSION CRITERIA: Individuals and their family members will be offered enrollment if they have a suspected or established diagnosis of Marfan, Stickler, Ehlers-Danlos, or a closely related syndrome. Personal or family history of one or more of the following features in a pattern suggestive of a heritable connective tissue disorder: Marfanoid body habitus; Aortic dilatation and/or dissection; Ectopia lentis, detached retina, vitreous degeneration and/or early onset high myopia; Posterior cleft palate; joint laxity and/or dislocation; Premature osteoarthritis; Skin fragility, striae, easy bruisability and/or hyperextensibility; Pectus excavatum or carinatum; Scoliosis, spondylolisthesis, and/or dural ectasia; High frequency sensorineural hearing loss. EXCLUSION CRITERIA: Inability to provide informed consent.
Total Enrollment: 900
Location and Contact Information:
National Human Genome Research Institute (NHGRI)
Bethesda, Maryland, 20892
United States
Additional Information:
Study ID Numbers: 970089; 97-HG-0089
Study Start Date: March 11, 1997
Record last reviewed: June 6, 2002
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00001641
Other Connective Tissue Disease Studies:
1. Study of Heritable Connective Tissue Disorders
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Study of Heritable Connective Tissue Disorders
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