Not applicableUnknownNCT03827525What this trial is testingCognitive and Behavioral Therapy of Anxiety in Williams SyndromeWho this might be right forWilliams SyndromeAnxiety University Hospital, Montpellier 5
Not applicableLooking for participantsNCT07285720What this trial is testingPhonological Constraints on Language Development in Individuals With Williams SyndromeWho this might be right forWilliams SyndromeLanguagePhonological Short-Term Memory+1 more Centre Hospitalier Universitaire, Amiens 130
Large-scale testing (Phase 3)Looking for participantsNCT06087757What this trial is testingClemastine Treatment in Individuals With Williams SyndromeWho this might be right forWilliams Syndrome Sheba Medical Center 30
Not applicableStudy completedNCT01864304What this trial is testingFat Distribution and Glucose Metabolism in Williams SyndromeWho this might be right forWilliams Syndrome Massachusetts General Hospital 24
Not applicableStudy completedNCT02692846What this trial is testingWS-SAVE Study (Williams Syndrome Skin and Vessel Elasticity Study)Who this might be right forWilliams SyndromeCardiovascular DiseaseMultisystem Developmental Disorder+2 more National Heart, Lung, and Blood Institute (NHLBI) 43
Not applicableStudy completedNCT02840448What this trial is testingImpact of Elastin Mediated Vascular Stiffness on End OrgansWho this might be right forWilliams SyndromeSupravalvular Aortic StenosisCardiovascular Disease National Heart, Lung, and Blood Institute (NHLBI) 159
Not applicableStudy completedNCT02212314What this trial is testingResponse Inhibition Training for Children With Williams SyndromeWho this might be right forWilliams Syndrome University of Wisconsin, Milwaukee 25
Not applicableStudy completedNCT04095585What this trial is testingMolecular Characterization of Patients Affected by Williams Syndrome and Autism.Who this might be right forWilliams Beuren SyndromeAutism Spectrum Disorder Hospices Civils de Lyon 6
Not applicableLooking for participantsNCT04463316What this trial is testingGROWing Up With Rare GENEtic SyndromesWho this might be right forPrader-Willi SyndromePWS-like SyndromeSilver Russel Syndrome+30 more dr. Laura C. G. de Graaff-Herder 600
Not applicableLooking for participantsNCT06930417What this trial is testingCharacterization and Natural History of Williams Syndrome and Other Chromosome 7q11.23 VariantsWho this might be right forWilliams Beuren SyndromeWilliams SyndromeWilliams Beuren Region Duplication+1 more University of Pennsylvania 2,000
Not applicableLooking for participantsNCT06740162What this trial is testingPhysical Activity and Community EmPOWERment ProjectWho this might be right forIntellectual DisabilityNeurodevelopmental DisordersAutism Spectrum Disorder+10 more University of North Carolina, Chapel Hill 376
Not applicableUnknownNCT04610424What this trial is testingCooperative Parent Mediated Therapy in Children With Fragile X Syndrome and Williams SyndromeWho this might be right forFragile X SyndromeWilliams Syndrome Bambino Gesù Hospital and Research Institute 14
Testing effectiveness (Phase 2)Study completedNCT00876200What this trial is testingEfficacy of Minoxidil in Children With Williams-Beuren SyndromeWho this might be right forWilliams Beuren Syndrome Hospices Civils de Lyon 21
Not applicableWithdrawnNCT05430763What this trial is testingMotor Deficits and Signal Conduction in Individuals With Williams SyndromeWho this might be right forWilliams Syndrome Sheba Medical Center
Large-scale testing (Phase 3)Looking for participantsNCT06315699What this trial is testingClemastine Fumarate in the Treatment of Neurodevelopmental Delays in Williams SyndromeWho this might be right forWilliams SyndromeChildNeurodevelopmental Delay Qilu Hospital of Shandong University 50
Not applicableUnknownNCT04051086What this trial is testingQuantification of Elastin Markers Synthesis in Williams-Beuren Syndrome and 7q11.23 Micro-duplication SyndromeWho this might be right forWilliams-Beuren SyndromeMicro-duplication 7q11.23 SyndromeVasculopathy Hospices Civils de Lyon 90
Not applicableStudy completedNCT00004351What this trial is testingStudy of Phenotype and Genotype Correlations in Patients With Contiguous Gene Deletion SyndromesWho this might be right forWilliams SyndromeAngelman SyndromePrader-Willi Syndrome+4 more National Institute of Neurological Disorders and Stroke (NINDS) 20
Not applicableLooking for participantsNCT01132885What this trial is testingDefining the Brain Phenotype of Children With Williams SyndromeWho this might be right forWilliams SyndromeDuplication National Institute of Mental Health (NIMH) 415
Not applicableEnrolling By InvitationNCT03836300What this trial is testingParent and Infant Inter(X)Action Intervention (PIXI)Who this might be right forFragile X SyndromeAngelman SyndromePrader-Willi Syndrome+11 more RTI International 120
Post-approval studies (Phase 4)Study completedNCT04807517What this trial is testingBuspirone Treatment of Anxiety in Williams SyndromeWho this might be right forWilliams SyndromeAnxiety Massachusetts General Hospital 20