[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100579984":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":18,"centralContacts":24,"locations":30,"responsibleParty":46,"collaborators":18,"id":50,"slug":51,"hasResults":52,"nctId":53,"briefTitle":54,"officialTitle":55,"acronym":18,"eligibilityCriteria":56,"healthyVolunteers":52,"sex":57,"minAge":58,"maxAge":59,"enrollmentInfo":60,"targetDuration":18,"studyType":63,"phases":64,"briefSummary":66,"conditions":67,"keywords":69,"overallStatus":33,"whyStopped":18,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"The University of Hong Kong","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Immediate treatment group","EXPERIMENTAL","Ultrasound-aided articulation therapy",[13],"Behavioral: Ultrasound-aided articulation therapy",{"label":15,"type":16,"description":17,"interventionNames":18},"Wait-list Control Group","NO_INTERVENTION","No treatment for 4 weeks, and later having the same ultrasound-aided articulation therapy as immediate treatment group",null,[20],{"type":21,"name":11,"description":22,"armGroupLabels":23,"otherNames":18},"BEHAVIORAL","The intervention under investigation is a motor-phonetic approach to articulation therapy, enhanced with ultrasound visual biofeedback (UVBF). The treatment group will receive the intervention immediately, while the waitlist control group will receive treatment after the initial group completes the study. This design allows for comparative outcome assessments between both groups, ensuring that all participants ultimately receive treatment.",[9],[25],{"name":26,"role":27,"phone":28,"phoneExt":18,"email":29},"Oi Yan Yoyo Yiu","CONTACT","5741 3431","h0501126@connect.hku.hk",[31],{"facility":32,"status":33,"city":34,"state":18,"zip":18,"country":34,"countryCode":35,"cosmosGeoPoint":36,"geoPoint":41,"contacts":42},"Hong Kong Children's Hospital and Child Assessment Centre of The Duchess of Kent Children's Hospital","RECRUITING","Hong Kong","HK",{"type":37,"coordinates":38},"Point",[39,40],114.17469,22.27832,{"lat":40,"lon":39},[43],{"name":44,"role":27,"phone":45,"phoneExt":18,"email":29},"Oi Yan Yoyo Yiu, Speech Therapist","+85257413431",{"type":47,"investigatorFullName":48,"investigatorTitle":49,"investigatorAffiliation":5,"oldNameTitle":18,"oldOrganization":18},"PRINCIPAL_INVESTIGATOR","Yiu Oi Yan","Principal Investigator","100579984","effectiveness-of-ultrasound-aided-articulation-therapy-for-children-with-speech-sound-disorders-100579984",false,"NCT06831396","Effectiveness of Ultrasound-Aided Articulation Therapy for Children With Speech Sound Disorders","Communication in Children With or Without Biomedical Conditions: Speech and Language Profile, Related Outcomes and Articulation Treatment With Ultrasound","Inclusion Criteria:\n\n* Primary diagnosis of speech sound disorder with errors on lingual target sounds\n* Probe accuracy \\\u003C70% on the primary target sound at baseline\n* Cantonese as the first language\n* Hearing thresholds ≤25 dB in at least one ear, with no hearing loss exceeding 50 dB in the other ear\n* No syndromes or obvious dysmorphic features\n* No language disorders associated with biomedical conditions (e.g., cerebral palsy, autism spectrum disorder)\n* No oronasal fistula identified on oral examination or diagnosed velopharyngeal insufficiency\n\nExclusion Criteria:\n\n* Presence of syndromes or dysmorphic features\n* Language disorder associated with biomedical conditions (e.g., cerebral palsy, autism spectrum disorder)\n* Hearing thresholds \\>25 dB in one ear and \\>50 dB in the other ear Planned surgical intervention during the study period","ALL","5 Years","12 Years",{"count":61,"type":62},60,"ESTIMATED","INTERVENTIONAL",[65],"NA","This prospective randomized controlled trial investigates the effect of ultrasound visual biofeedback as an adjunct to articulation therapy in children with speech sound disorders involving lingual targets. The intervention aims to facilitate acquisition of misarticulated sounds by providing real-time visualization of tongue movements. Participants are randomized 1:1 to immediate treatment or wait-list control, with stratification by disorder type, age, and gender where feasible. The wait-list control group continues usual care for 4 weeks before crossing over to receive the same intervention (ethical crossover design).",[68],"Speech Sound Disorder",[70,71,72,73],"Speech and Language","Children","Treatment","Ultrasound","2026-03-07",{"date":76,"type":77},"2026-03-10","ACTUAL",{"date":79,"type":77},"2023-11-11",{"date":81,"type":62},"2026-10-30",{"name":5,"class":6},1]