7q11.23 microduplication syndrome
MONDO:00123427q11.23 microduplication syndrome is a rare chromosomal anomaly syndrome resulting from the partial duplication of the long arm of chromosome 7 characterized by a highly variable phenotype that typically manifests with mild-moderate intellectual delay (patients could be in the normal range), speech disorders (particularly of expressive language), and distinctive craniofacial features (brachycephaly, broad forehead, straight eyebows, broad nasal tip, short piltrum, thin upper lip and facial asymmetry). hypotonia, developmental coordination disordes, behavioral problems (such as anxiety, ADHD and oppositional disorders) and various congenital anomalies, such as heart defects, diaphragmatic hernia, renal malformations and cryptorchidism, are frequently presented. Neurological abnormalities (visible on MRI) have been reported.
Also known as: dup(7)(q11.23), trisomy 7q11.23, 7q11.23 duplication syndrome, Somerville-Van Der Aa syndrome, Wbs Duplication syndrome, Wbs triplication syndrome, Williams-Beuren region DUPLICATION syndrome, chromosome 7Q11.23 Duplication syndrome
5 clinical trials for this condition and its sub-types.
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NIH launches study to map brain changes in kids with rare genetic disorders
Knowledge-focused Recruiting nowThis study aims to understand how the brain develops in children with Williams syndrome or 7q11.23 duplication syndrome, compared to healthy children. Researchers will use MRI scans and cognitive tests to track changes over time. The goal is to learn how these genetic variations …
Sponsor: National Institute of Mental Health (NIMH) • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:00 UTC
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Massive study aims to unlock the mysteries of williams syndrome
Knowledge-focused Recruiting nowThis observational study follows up to 2,000 people with Williams syndrome or related chromosome changes, along with their family members. Researchers will track health, development, behavior, and quality of life from childhood through adulthood. They are also building a biobank …
Sponsor: University of Pennsylvania • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:04 UTC