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Observational Study of Males With Creatine Transporter Deficiency (Vigilan)

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. Read our disclaimer for details. Identifier: NCT02931682
Recruitment Status : Terminated (Sponsor decision not related to safety concerns)
First Posted : October 13, 2016
Last Update Posted : November 14, 2022
Information provided by (Responsible Party):
Ultragenyx Pharmaceutical Inc

Brief Summary:
The objectives of this study are to illustrate the clinical, neuro/electrophysiologic, biochemical, and developmental status and progression of patients with Creatine Transporter Deficiency (CTD) and to evaluate the utility of performance-based and other measures in the CTD population.

Condition or disease
Creatine Deficiency, X-linked

Detailed Description:

This is an observational study designed to determine an appropriate clinical assessment battery for males with CTD, and to evaluate Magnetic resonance spectroscopy (MRS) along with other potential biomarkers. It is designed to explore developmental domains of interest and to examine the feasibility and utility of various neuropsychological assessments to measure domains of interest, and to identify possible endpoints for interventional studies. Study will also explore genotype-phenotype correlations.

Clinical adverse events will be monitored throughout the study.

This study was previously posted by Lumos Pharma, which has been transferred to Ultragenyx in June 2019.

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Study Type : Observational
Actual Enrollment : 50 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Observational Study of Males With Creatine Transporter Deficiency
Actual Study Start Date : December 2016
Actual Primary Completion Date : October 24, 2022
Actual Study Completion Date : October 24, 2022

Primary Outcome Measures :
  1. Change Over Time Through Month 48 in the Bayley Scales of Infant and Toddler Development, 4th Edition (Bayley-4) [ Time Frame: Month 48 ]

Biospecimen Retention:   Samples With DNA
Whole blood, cerebrospinal fluid, urine and fibroblasts

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   6 Months to 65 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Community Sample

Inclusion Criteria:

  1. Subject has genomic confirmation of a pathologic mutation in the SLC6A8 gene.
  2. Subject is able to complete study-related procedures.
  3. Subjects' parents/guardians/caregivers must provide written consent (informed consent) to study-related procedures, and if appropriate, the subject will provide an assent.

Exclusion Criteria:

  1. Subject has had status epilepticus within 3 months of screening.
  2. Subject is unable to comply with the study procedures or with a clinical disease or laboratory abnormality that in the opinion of the investigator would potentially increase the risk of participation.

Information from the National Library of Medicine

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 identifier (NCT number): NCT02931682

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United States, California
University of California San Diego
La Jolla, California, United States, 92037
United States, Illinois
Rush University Medical Center
Chicago, Illinois, United States, 60612
United States, Maryland
National Institutes of Health Clinical Center
Bethesda, Maryland, United States, 20814
United States, Massachusetts
Boston Children's Hospital
Boston, Massachusetts, United States, 02115
United States, North Carolina
Duke University Medical Center
Durham, North Carolina, United States, 27710
United States, Ohio
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States, 45229
United States, Pennsylvania
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States, 19104
United States, Texas
Texas Children's Hospital
Houston, Texas, United States, 77030
United States, Utah
University of Utah
Salt Lake City, Utah, United States, 84108
Canada, Ontario
The Hospital for Sick Children
Toronto, Ontario, Canada, M5G 1X8
Sponsors and Collaborators
Ultragenyx Pharmaceutical Inc
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Study Director: Medical Director Ultragenyx Pharmaceutical Inc
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Responsible Party: Ultragenyx Pharmaceutical Inc Identifier: NCT02931682    
Other Study ID Numbers: LUM-001-C-01
UX068-CL001 ( Other Identifier: Ultragenyx Pharmaceutical Inc )
First Posted: October 13, 2016    Key Record Dates
Last Update Posted: November 14, 2022
Last Verified: November 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Ultragenyx Pharmaceutical Inc:
Creatine transporter
developmental delay
intellectual disability
brain spectroscopy