Study of Inborn Errors of Cholesterol Synthesis and Related Disorders

This study is currently recruiting participants. (see Contacts and Locations)
Verified March 2014 by National Institutes of Health Clinical Center (CC)
Sponsor:
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT00046202
First received: September 21, 2002
Last updated: April 3, 2014
Last verified: March 2014

September 21, 2002
April 3, 2014
September 2002
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Complete list of historical versions of study NCT00046202 on ClinicalTrials.gov Archive Site
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Study of Inborn Errors of Cholesterol Synthesis and Related Disorders
Investigations Into Inborn Errors of Cholesterol Synthesis and Related Disorders

This study will investigate the cause and medical problems associated with a group of genetic disorders known as inborn errors of cholesterol synthesis, in which the body does not produce cholesterol. People with this disorder may have birth defects and learning and behavioral problems.

People with an inborn error of cholesterol synthesis and related disorders, including Smith-Lemli-Opitz syndrome, lathosterolosis, desmosterolosis, X-linked dominant chondrodysplasia, CHILD syndrome, Greenberg dysplasia, and some cases of Antley-Bixler syndrome, may be eligible for this study. People who are carriers of the disorders also may enroll.

Participants and family members will provide blood and urine samples, as well as other tissue samples collected during medically indicated procedures such as biopsy or surgery. These tissues may include, for example, gallstones, cataracts, cerebrospinal fluid, amniotic fluid, lymph tissue, and DNA samples. In rare instances, a skin biopsy may be requested to aid in establishing a diagnosis.

Medical information will also be gathered from medical records, photographs, and X-rays.

Over the past 15 years, it has become clear that inborn errors of cholesterol synthesis give rise to human malformation/mental retardation syndromes. Smith-Lemli-Opitz syndrome is the prototypical example of a post-squalene inborn error of metabolism; however, this group of disorders now includes lathosterolosis, desmosterolosis, X-linked dominant chondrodysplasia (CDPX2), CHILD syndrome, HEM dysplasia, and some cases of Antley-Bixler syndrome. Due to the extremely rare occurrence of some of these disorders, the full phenotypic spectrum has yet to be defined. The purpose of this protocol is two-fold. First, this protocol will allow for the collection and analysis of clinical specimens and medical information from individuals who have or may have a disorder of cholesterol synthesis. Second, this protocol will allow for collection of DNA and medical information from individuals who have a phenotypic resemblance to known disorders of cholesterol synthesis, or individuals who may be carriers of these disorders.

Observational
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Lipoidosis
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
500
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  • INCLUSION CRITERIA:

Subjects will be eligible for this study if they have or are suspected to have an inborn error of cholesterol synthesis or if they are related to a proband with a suspected inborn error of cholesterol synthesis. No exclusions will be made based on gender, ethnicity or age.

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Contact: Margarita J Raygada, Ph.D. (301) 451-8822 mr346j@nih.gov
Contact: Forbes D Porter, M.D. (301) 435-4432 fdporter@mail.nih.gov
United States
 
NCT00046202
020311, 02-CH-0311
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Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
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Principal Investigator: Forbes D Porter, M.D. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
National Institutes of Health Clinical Center (CC)
March 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP