The national prenatal exome sequencing (pES) service launched in October 2020. This service is now offered as part of antenatal NHS care when scan findings suggest that a baby may have a genetic condition unlikely to be diagnosed by standard tests. Because pES has not been offered in this way before, it is important that we evaluate how it is being delivered. This is the purpose of the EXPRESS study.
Over the next two years, the EXPRESS research team will evaluate the pES service. They will provide feedback about how it is being delivered across England so that we can ensure a service that both benefits and supports parents and families, and can be accessed equally by everyone.