Cerebrotendinous Xanthomatosis (CTX) Prevalence Study
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ClinicalTrials.gov Identifier: NCT02638220 |
Recruitment Status : Unknown
Verified November 2018 by Travere Therapeutics, Inc..
Recruitment status was: Recruiting
First Posted : December 23, 2015
Last Update Posted : November 9, 2018
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Condition or disease |
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Cerebrotendinous Xanthomatosis (CTX) |
Study Type : | Observational |
Estimated Enrollment : | 500 participants |
Observational Model: | Cohort |
Time Perspective: | Other |
Official Title: | An Observational, Multicenter Study of the Prevalence of Cerebrotendinous Xanthomatosis (CTX) in Patient Populations Diagnosed With Early-Onset Idiopathic Bilateral Cataracts |
Study Start Date : | September 2015 |
Estimated Primary Completion Date : | December 2018 |
Estimated Study Completion Date : | December 2018 |

- To calculate the prevalence of Cerebrotendinous Xanthomatosis (CTX) in a patient population diagnosed up to age 21 with early-onset idiopathic bilateral cataracts [ Time Frame: 8 weeks ](by blood draw where plasma cholenstanol levels and/or urine bile alcohol results will be used to determine whether genetic testing is indicated. Genetic Testing, if indicated, will be used to determine the prevalence of CTX)
- To assess other manifestations of CTX within patients presenting with idiopathic bilateral cataracts. [ Time Frame: 8 weeks ]Based on a patient reported, CTX disease-specific medical history for the patients diagnosed with CTX, the manifestations and symptoms related to the disease will be presented by body system.

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Ages Eligible for Study: | 2 Years to 21 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Probability Sample |
Inclusion Criteria:
- The patient has a diagnosis of idiopathic bilateral cataracts.
- Between the ages of 2 to 21 years at the time of diagnosis
Exclusion Criteria:
- The patient has a diagnosis of cataracts with known etiology other than CTX.
- The patient has a diagnosis of CTX.
- The patient has cataracts caused by cataractogenic treatments.
- The patient has taken or is currently taking cholic acid or chenodeoxycholic acid.
- The patient has participated in an interventional clinical trial in the past 30 days.
- The patient and/or their parent/legal guardian, in the opinion of the Investigator, is unable to adhere to the requirements of the study.

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): NCT02638220
Contact: Retrophin Medical Information | 1-877-659-5518 | medinfo@retrophin.com |

Responsible Party: | Travere Therapeutics, Inc. |
ClinicalTrials.gov Identifier: | NCT02638220 |
Other Study ID Numbers: |
018CTXX15001 |
First Posted: | December 23, 2015 Key Record Dates |
Last Update Posted: | November 9, 2018 |
Last Verified: | November 2018 |
Cerebrotendinous Xanthomatosis CTX Prevalence Study CTX Idiopathic Bilateral Cataracts Cataracts |
Bilateral Cataracts Early-Onset Idiopathic Bilateral Cataracts Observational Study Ophthalmology |
Xanthomatosis, Cerebrotendinous Xanthomatosis Lipid Metabolism Disorders Metabolic Diseases |
Lipid Metabolism, Inborn Errors Metabolism, Inborn Errors Genetic Diseases, Inborn |