U.S., April 17 -- ClinicalTrials.gov registry received information related to the study (NCT06930417) titled 'Characterization and Natural History of Williams Syndrome and Other Chromosome 7q11.23 Variants' on March 17.

Brief Summary: The goal of this observational natural history study is to better characterize development, transition to adulthood, health and behavior of individuals diagnosed with Williams syndrome (WS) or carrying other variants of 7q11.23 chromosome and to build a DNA and tissue biobank with samples donated by affected individuals. The study has multiple arms focused on different aspects of WS. Participants with genetic diagnosis of WS or other variants of 7q11.23 and their family members are eligible to participate. St...