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Study of Smith-Lemli-Opitz Syndrome
NCT00001721 · View on ClinicalTrials.gov ↗
Study Summary
Smith-Lemli-Opitz Syndrome (SLOS) is a genetic disorder (autosomal recessive) caused by an abnormality in the production of cholesterol. The disorder can occur in both a "mild" or "severe" form. SLOS is associated with multiple birth defects and mental retardation. Some of the birth defects include; abnormal facial features, poor muscle tone, poor growth, shortened life span, and abnormalities of the heart, lungs, brain, gastrointestinal tract, limbs, genitalia, and kidneys. There is no known cure for SLOS but recently patients have been treated with increased amounts of cholesterol in their diet. The cholesterol in a persons diet is unable to correct the abnormalities in the patient's organs, but researchers hope it will improve growth failure and mental retardation. This study was developed to answer questions about the causes and complications of SLOS, as well as the effectiveness of cholesterol treatment. The study will enroll patients diagnosed with SLOS, and their mothers. The objectives of the study will be to address the following questions: 1. \<TAB\> What is the prognosis / natural history of the demyelination in the nervous system of patients with SLOS? 2. \<TAB\> Do patients with SLOS have other problems concerning the function of their endocrine systems? 3. \<TAB\>What are the genetic make-ups of patients with SLOS? 4. \<TAB\>Can further studies of cholesterol metabolism and genetic testing, using SLOS fibroblasts, increase the understanding of SLOS?\<TAB\>
Conditions Studied
Interventions
- DRUG Cholesterol
- DRUG Cholesterol Suspension
- DRUG CRH
Study Locations (1)
Maryland
- National Institutes of Health Clinical Center — Bethesda
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 130 participants |
| Start Date | 1998-09-13 |
Sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)237 total trials
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00001721
The ClinicalTrials.gov registry entry for NCT00001721 describes a study currently listed as completed. It is categorized as an unspecified phase, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 130 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), which has 237 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Smith-Lemli-Opitz Syndrome appearing as the primary indexed condition, and to 3 interventions — of which Cholesterol is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT00001721 reports 1 study location spanning 1 distinct geographic area — top geographies include Maryland. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT00001721 about?
NCT00001721 is a clinical study titled "Study of Smith-Lemli-Opitz Syndrome". Smith-Lemli-Opitz Syndrome (SLOS) is a genetic disorder (autosomal recessive) caused by an abnormality in the production of cholesterol. The disorder can occur in both a "mild" or "severe" form. SLOS is associated with multiple birth defects and mental retardation. Some of the birth defects include;...
What is the current status of trial NCT00001721?
This trial is currently completed. The enrollment target is 130 participants. The study started on 1998-09-13.
What conditions does trial NCT00001721 study?
This clinical trial studies the following conditions: Smith-Lemli-Opitz Syndrome. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT00001721?
The interventions under investigation include: Cholesterol (DRUG), Cholesterol Suspension (DRUG), CRH (DRUG). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT00001721?
This trial is sponsored by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), which has 237 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT00001721 being conducted?
This trial has 1 study location across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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