[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100588463":3},{"organization":4,"armGroups":7,"interventions":8,"overallOfficials":13,"centralContacts":18,"locations":23,"responsibleParty":38,"collaborators":7,"id":40,"slug":41,"hasResults":42,"nctId":43,"briefTitle":44,"officialTitle":45,"acronym":7,"eligibilityCriteria":46,"healthyVolunteers":42,"sex":47,"minAge":48,"maxAge":49,"enrollmentInfo":50,"targetDuration":53,"studyType":54,"phases":7,"briefSummary":55,"conditions":56,"keywords":58,"overallStatus":26,"whyStopped":7,"lastUpdateSubmitDate":63,"lastUpdatePostDateStruct":64,"startDateStruct":67,"completionDateStruct":69,"leadSponsor":71,"locationsCount":72},{"fullName":5,"class":6},"National Taiwan University Hospital","OTHER",null,[9],{"type":10,"name":11,"description":12,"armGroupLabels":7,"otherNames":7},"DIAGNOSTIC_TEST","ultrasonographic imaging","masseter muscle elasticity",[14],{"name":15,"affiliation":16,"role":17},"Yueh-Hsia Chen, PhD","National Taiwan University, College of Medicine","PRINCIPAL_INVESTIGATOR",[19],{"name":15,"role":20,"phone":21,"phoneExt":7,"email":22},"CONTACT","+886-2-33668133","yuehhsiachen@ntu.edu.tw",[24],{"facility":25,"status":26,"city":27,"state":7,"zip":7,"country":28,"countryCode":29,"cosmosGeoPoint":30,"geoPoint":35,"contacts":36},"National Taiwan University","RECRUITING","Taipei","Taiwan","TW",{"type":31,"coordinates":32},"Point",[33,34],121.52639,25.05306,{"lat":34,"lon":33},[37],{"name":15,"role":20,"phone":7,"phoneExt":7,"email":7},{"type":39,"investigatorFullName":7,"investigatorTitle":7,"investigatorAffiliation":7,"oldNameTitle":7,"oldOrganization":7},"SPONSOR","100588463","relationship-between-mouth-opening-and-masseter-elasticity-in-oral-cancer-100588463",false,"NCT06941727","Relationship Between Mouth Opening and Masseter Elasticity in Oral Cancer","Association Between Maximum Mouth Opening and Masseter Muscle Elasticity in Oral Cancer Patients: A Study Using Sonographic Elastography","Inclusion Criteria:\n\n1. Newly diagnosed oral cancer patients who are scheduled to receive cancer-related treatments (e.g., oral cancer surgery, radiotherapy, chemotherapy, or chemoradiotherapy).\n2. Age between 20 and 65 years.\n\nExclusion Criteria:\n\n1. Could not communicate.\n2. Had any disorder that could influence movement performance.","ALL","20 Years","65 Years",{"count":51,"type":52},10,"ESTIMATED","8 Weeks","OBSERVATIONAL","The study aims to assess the hardness of masticatory muscles in post-surgical oral cancer patients using strain elastography ultrasound, calculating the masseter elasticity index and exploring its association with maximum interincisal mouth opening. Furthermore, the study incorporates exercise training to analyze whether changes in masseter hardness can serve as an objective indicator for predicting the improvement of trismus.",[57],"Oral Cancer",[59,60,61,62],"Maximum interincisal opening","Elastography","Masseter muscle","Elasticity","2026-05-14",{"date":65,"type":66},"2026-05-18","ACTUAL",{"date":68,"type":66},"2025-05-16",{"date":70,"type":52},"2026-12-31",{"name":5,"class":6},1]