DDX3X Syndrome -The Seaver Autism Center for Research and Treatment is Characterizing DDX3X-related Neurodevelopmental Disorders Using Genetic, Medical, and Neuropsychological Measures.



Status:Recruiting
Conditions:Neurology, Psychiatric, Autism
Therapuetic Areas:Neurology, Psychiatry / Psychology
Healthy:No
Age Range:2 - Any
Updated:10/27/2018
Start Date:May 22, 2018
End Date:May 2020
Contact:Lara Tang, B.A.
Email:lara.tang@mssm.edu
Phone:212-241-2993

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The Seaver Autism Center for Research and Treatment - Assessment Core

DDX3X syndrome is a genetic cause of intellectual disability and other neurologic features
including, in some cases, autism. Variants in the DDX3X gene are thought to account for 1-3%
of unexplained intellectual disability in females, making it one of the more common causes of
intellectual disability.This study seeks to characterize DDX3X-related neurodevelopmental
disorders using a number of genetic, medical and neuropsychological measures.

Subjects with a variant in the DDX3X gene will be asked to complete a battery of
developmental, behavioral and medical assessments to better characterize gene-related
neurodevelopmental deficits. This series of assessments takes place over the course of a
three-day period. It includes the Autism Diagnostic Observation Schedule (ADOS), parent
interviews regarding developmental history and behavior, a psychiatric evaluation, a
neurology assessment, as well as a clinical genetic evaluation that includes a physical and
vitals exam. Affected individuals, as well as biologically related siblings, will also
undergo a series of sensory assessments, including a research EEG, visual evoked potential,
and an eyetracking assessment. Family members present for the visit will also be asked to
provide a blood and/or saliva sample for research genetics.

Inclusion Criteria:

- Eligible participants must have a documented variant affecting the DDX3X gene that the
research team determines to be likely or definitely pathogenic.

- Eligible participants must be at least 2 years of age.

Exclusion Criteria:
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