Study of Heritable Connective Tissue Disorders
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Purpose
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.
| Condition |
|---|
|
Connective Tissue Disease Dissecting Aneurysm Ehlers Danlos Syndrome Marfan Syndrome Nail Patella Syndrome |
| Study Type: | Observational |
| Official Title: | Clinical and Molecular Manifestations of Heritable Connective Tissue Disorders |
| Estimated Enrollment: | 900 |
| Study Start Date: | March 1997 |
| Estimated Study Completion Date: | June 2002 |
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| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
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.
Contacts and Locations More Information
Publications:
| ClinicalTrials.gov Identifier: | NCT00001641 History of Changes |
| Other Study ID Numbers: | 970089, 97-HG-0089 |
| Study First Received: | November 3, 1999 |
| Last Updated: | March 3, 2008 |
| Health Authority: | United States: Federal Government |
Keywords provided by National Institutes of Health Clinical Center (CC):
|
Fibrillin Collagen Marfan Syndrome Stickler Syndrome Aortic Dissection |
Ehlers-Danlos Connective Tissue Disorders Ehlers-Danlos Syndrome Nail-Patella Syndrome |
Additional relevant MeSH terms:
|
Nail-Patella Syndrome Aneurysm Aneurysm, Dissecting Marfan Syndrome Arachnodactyly Connective Tissue Diseases Ehlers-Danlos Syndrome Skin Abnormalities Vascular Diseases Cardiovascular Diseases Bone Diseases, Developmental Bone Diseases Musculoskeletal Diseases Heart Defects, Congenital Cardiovascular Abnormalities |
Heart Diseases Abnormalities, Multiple Congenital Abnormalities Genetic Diseases, Inborn Limb Deformities, Congenital Musculoskeletal Abnormalities Hemostatic Disorders Hemorrhagic Disorders Hematologic Diseases Skin Diseases, Genetic Collagen Diseases Skin Diseases Joint Diseases Nail Diseases |
ClinicalTrials.gov processed this record on May 19, 2013