Williams Syndrome (WS) and Supravalvular Aortic Stenosis (SVAS) DNA and Tissue Bank
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT02706639|
Recruitment Status : Recruiting
First Posted : March 11, 2016
Last Update Posted : September 3, 2018
DNA tells the body how to grow and function. Williams-Beuren syndrome (WS) and Supravalvular Aortic Stenosis (SVAS) are rare diseases caused by changes in a part of a person s DNA. Symptoms of both conditions include vascular problems including narrow blood vessels and supravalvular aortic stenosis (SVAS) or supravalvular pulmonary stenosis. Individuals with WS may also have developmental challenges and personality differences. Researchers at the NIH want to find out why only some people with WS and SVAS have severe symptoms. They want to collect samples and data to see what DNA or environmental changes affect the severity of the disease.
To identify the DNA differences or environmental changes that change the severity of WS and SVAS from person to person.
People ages 0 85 with either WS, SVAS, and/or an SVAS-like condition
Children and people with WS must have a parent or legal guardian to consent or help answer questions.
Participants will be screened with questions and medical history.
Participants will have a 60-minute visit. They will provide blood or saliva samples.
They or their parent/guardian will:
Answer questions about how WS and SVAS affect them.
Sign a form releasing their medical records for the study.
If participant s regular doctor recommends surgery, researchers will ask the surgeon for skin or tissue samples that they might otherwise discard. These will be used to create stem cells to study in a lab.
For up to 20 years, participants will have annual questionnaires by phone, email, or mail about their WS or SVAS.
Participants may also be contacted if:
They need to provide a new blood or saliva sample.
Researchers need any other data.
There is a follow-up study.
|Condition or disease|
|Williams Syndrome Supravalvular Aortic Stenosis Cardiovascular Disease|
Our goal with the Williams syndrome (WS) and Supravalvular Aortic Stenosis (SVAS), deoxyribonucleic acid (DNA) and Tissue Bank is to collect enough samples from individuals with this rare condition to ask questions about the genes that cause the many WS and SVAS related phenotypes, and to determine the genetic and environmental changes that modify the severity of disease from person to person. In addition, we would like to learn more about the natural history of these conditions and if there are environmental or genetic signatures that are associated with symptom presence.
The protocol detailed here will provide for the collection of historical information, laboratory and imaging data, DNA and tissue to perform these studies now and in the future. Because technology changes rapidly and because this is a rare condition, our goal is to generate a collection that will be available for analysis for many years.
In addition to DNA and tissue collection proposed, we would like to begin to use the specimens collected here to continue to ask questions about modifiers of vascular disease severity as well as effects on other organ systems in WS and SVAS.
|Study Type :||Observational|
|Estimated Enrollment :||1000 participants|
|Official Title:||Williams Syndrome (WS) and Supravalvular Aortic Stenosis (SVAS) DNA and Tissue Bank|
|Study Start Date :||March 8, 2016|
|Estimated Primary Completion Date :||September 25, 2025|
|Estimated Study Completion Date :||September 25, 2025|
- The overall objective of this study is to collect historical information and to bank DNA, cells and tissue from individuals with Williamssyndrome and SVAS to facilitate future research into the many phenotypes seen in these individuals. [ Time Frame: ongoing ]
- To identify genetic and environmental factors that contribute to the variability in different phenotypes in individuals with WS, SVAS, andSVAS-like conditions [ Time Frame: ongoing ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02706639
|Contact: Sharon Osgood, R.N.||(301) firstname.lastname@example.org|
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike||Recruiting|
|Bethesda, Maryland, United States, 20892|
|Contact: For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR) 800-411-1222 ext TTY8664111010 email@example.com|
|Principal Investigator:||Beth A Kozel, M.D.||National Heart, Lung, and Blood Institute (NHLBI)|