New study sheds light on rare genetic cause of intellectual disability
NCT ID NCT03718910
First seen Apr 20, 2026 · Last updated Jun 19, 2026 · Updated 12 times
Summary
This study looked at 15 people with changes in the DDX3X gene, a known cause of intellectual disability and sometimes autism. Researchers used interviews, play-based assessments, and genetic tests to better understand the condition. The goal was to describe the range of symptoms, not to test a treatment.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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The Seaver Autism Center for Research and Treatment
New York, New York, 10029, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could provide a clearer understanding of DDX3X syndrome and its link to autism and intellectual disability.
What could go wrong
This is a small, observational study with only 15 participants, so findings may not apply to everyone with DDX3X variants. It aims to describe, not treat, the condition.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.