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Williams Syndrome clinical trials recruiting in the U.S.
5 studies for Williams Syndrome are recruiting participants at sites across the United States.
Recently updated studies
Defining the Brain Phenotype of Children With Williams Syndrome
RecruitingObservational studyHealthy volunteers welcome
Ages 5 and older · All sexes · Updated Sep 22, 2026 · NCT01132885Characterization and Natural History of Williams Syndrome and Other Chromosome 7q11.23 Variants
RecruitingObservational studyHealthy volunteers welcome
All ages · All sexes · Updated Jun 8, 2026 · NCT06930417Intensive Multimodal Neurorehabilitation Targeting Neuroplasticity in Pediatric Neurodevelopmental and Chromosomal Disorders
RecruitingObservational study
Ages 4 to 12 · All sexes · Updated Mar 25, 2026 · NCT07493096Physical Activity and Community EmPOWERment Project
RecruitingHealthy volunteers welcome
Ages 18 and older · All sexes · Updated Feb 23, 2026 · NCT06740162Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
RecruitingObservational study
All ages · All sexes · Updated May 29, 2025 · NCT01793168From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.