Below is a summary for the CHD3 gene observed in research publications. This is not meant to take the place of medical advice.

Click here for our full CHD3 Gene Guide

The online Gene Guide includes more information about CHD3 such as the chance of having another child with this condition, behavior and development concerns linked to CHD3-related syndrome or specialists to consider for people with this condition. Share this resource with family members or your clinical providers.

What is CHD3-related syndrome?

CHD3-related syndrome happens when there are changes to the CHD3 gene. These changes can keep the gene from working as it should.

CHD3-related syndrome is also called Snijders Blok-Campeau Syndrome.

Key Role

CHD3 plays a key role in the growth of the brain.


Many people who have CHD3-related syndrome have:

  • Intellectual disability
  • Developmental delays
  • Impaired language and speech skills
  • Large heads and facial features that are similar to others with the syndrome

How many people have CHD3-related syndrome?

As of 2019, about 35 people in the world with changes in the CHD3 gene had been described in the medical literature. The first case of CHD3– related syndrome was described in 2018. Scientists expect to find more people who have the syndrome as access to genetic testing improves.


Support Resources



GeneReviews are a great resource to bring to your child’s clinicians. These publications provide a summary of current research on genetic conditions and information on ongoing care.

There is currently no GeneReviews for CHD3.


Research Article Summaries

We currently do not have any article summaries for CHD3, but we add resources to our website as they become available.

The information available about CHD3 is limited, and families and doctors share a critical need for more information. As we learn more from children who have this gene change, we expect our list of resources and information to grow.

Full versions of published research articles can be found on PubMed. PubMed is a National Institutes of Health (NIH) online database that is free. It has a collection of both medical and scientific research articles. A PubMed search for CHD3 articles can be found here.

You can also visit the Simons Foundation’s SFARI Gene website to see information for researchers about this gene.


Research Opportunities

Simons Searchlight

Help the Simons Searchlight team learn more about CHD3 genetic changes by taking part in our research. You can learn more about the project and sign up here.

External Research Opportunity: FaceMatch

FaceMatch is a platform that helps parents and doctors contribute to an international secure image database of both undiagnosed and diagnosed children across the globe. *This study is not affiliated with Simons Searchlight. Learn more about FaceMatch.


Family Stories

We do not currently have any stories from CHD3 families.

Click here to share your family’s story!