[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100570491":3},{"organization":4,"armGroups":7,"interventions":25,"overallOfficials":38,"centralContacts":42,"locations":51,"responsibleParty":64,"collaborators":67,"id":70,"slug":30,"hasResults":71,"nctId":72,"briefTitle":73,"officialTitle":74,"acronym":30,"eligibilityCriteria":75,"healthyVolunteers":76,"sex":77,"minAge":78,"maxAge":30,"enrollmentInfo":79,"targetDuration":30,"studyType":82,"phases":83,"briefSummary":85,"conditions":86,"keywords":88,"overallStatus":53,"whyStopped":30,"lastUpdateSubmitDate":94,"lastUpdatePostDateStruct":95,"startDateStruct":98,"completionDateStruct":100,"leadSponsor":102,"locationsCount":103},{"fullName":5,"class":6},"The Hong Kong Polytechnic University","OTHER",[8,14,19],{"label":9,"type":10,"description":11,"interventionNames":12},"Descriptive social norm nudges","EXPERIMENTAL","Participants receive messages with social norm nudges presented in the word form.",[13],"Behavioral: Descriptive social norm nudges",{"label":15,"type":10,"description":16,"interventionNames":17},"Pictorial social norm nudges","Participants receive messages with social norm nudges presented in graphic form.",[18],"Behavioral: Pictorial social norm nudges",{"label":20,"type":21,"description":22,"interventionNames":23},"Active control","ACTIVE_COMPARATOR","Participants receive messages with generic mental health knowledge or information.",[24],"Behavioral: Service as usual",[26,31,34],{"type":27,"name":9,"description":28,"armGroupLabels":29,"otherNames":30},"BEHAVIORAL","A set of messages with descriptive social norm nudges sent to participants.",[9],null,{"type":27,"name":15,"description":32,"armGroupLabels":33,"otherNames":30},"A set of messages with pictorial social norm nudges sent to participants.",[15],{"type":27,"name":35,"description":36,"armGroupLabels":37,"otherNames":30},"Service as usual","Traditional mental health education information disseminated to participants.",[20],[39],{"name":40,"affiliation":5,"role":41},"Tianyin Liu, PhD","PRINCIPAL_INVESTIGATOR",[43,48],{"name":40,"role":44,"phone":45,"phoneExt":46,"email":47},"CONTACT","2766","5015","tianliu@polyu.edu.hk",{"name":49,"role":44,"phone":30,"phoneExt":30,"email":50},"Ken Liu, MSc","ho-kan-ken.liu@polyu.edu.hk",[52],{"facility":5,"status":53,"city":54,"state":30,"zip":30,"country":54,"countryCode":55,"cosmosGeoPoint":56,"geoPoint":61,"contacts":62},"RECRUITING","Hong Kong","HK",{"type":57,"coordinates":58},"Point",[59,60],114.17469,22.27832,{"lat":60,"lon":59},[63],{"name":40,"role":44,"phone":45,"phoneExt":46,"email":47},{"type":41,"investigatorFullName":65,"investigatorTitle":66,"investigatorAffiliation":5,"oldNameTitle":30,"oldOrganization":30},"LIU Tianyin Bridget","Assistant Professor",[68],{"name":69,"class":6},"The University of Hong Kong","100570491",false,"NCT06707935","Mental Health Help-seeking Promotion in Older Adults","Is a Picture Worth a Thousand Words: A Participatory Approach to Codesign Descriptive and Pictorial Social Norm Nudges and a Randomised Controlled Trial (RCT) to Examine Their Effectiveness in Improving Mental Health Help-seeking Intention","Inclusion Criteria:\n\n* aged 60 years or above at the time of the baseline assessment\n* have no severe mental disorder or cognitive impairment\n* have no severe visual impairment\n* be able to read Chinese\n* have a smartphone with an instant communication application to receive text and images\n\nExclusion Criteria:\n\n* have severe difficulty in reading and communication\n* show imminent suicidal risk at any stage of the study",true,"ALL","60 Years",{"count":80,"type":81},540,"ESTIMATED","INTERVENTIONAL",[84],"NA","The present study aims to examine the effectiveness of descriptive social norm nudges and pictorial social norm nudges in improving mental health help-seeking intention compared to educational information.",[87],"Mental Health Help-seeking",[89,90,91,92,93],"co-design","nudge","behavioural economics","mental health","help-seeking","2026-02-05",{"date":96,"type":97},"2026-02-06","ACTUAL",{"date":99,"type":97},"2024-12-01",{"date":101,"type":81},"2026-12-31",{"name":5,"class":6},1]