[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100628769":3},{"organization":4,"armGroups":7,"interventions":29,"overallOfficials":12,"centralContacts":12,"locations":40,"responsibleParty":60,"collaborators":12,"id":62,"slug":12,"hasResults":63,"nctId":64,"briefTitle":65,"officialTitle":65,"acronym":12,"eligibilityCriteria":66,"healthyVolunteers":63,"sex":67,"minAge":68,"maxAge":69,"enrollmentInfo":70,"targetDuration":12,"studyType":73,"phases":74,"briefSummary":76,"conditions":77,"keywords":79,"overallStatus":43,"whyStopped":12,"lastUpdateSubmitDate":83,"lastUpdatePostDateStruct":84,"startDateStruct":87,"completionDateStruct":89,"leadSponsor":91,"locationsCount":92},{"fullName":5,"class":6},"University of Chile","OTHER",[8,13,19,24],{"label":9,"type":10,"description":11,"interventionNames":12},"Holdout","NO_INTERVENTION","Patients do not receive a Whatsapp message",null,{"label":14,"type":15,"description":16,"interventionNames":17},"$9,990","EXPERIMENTAL","Dental appointment message with intermediate price discount",[18],"Behavioral: Dental appointment message with intermediate price discount",{"label":20,"type":15,"description":21,"interventionNames":22},"$4,990","Dental appointment message with large price discount",[23],"Behavioral: Dental appointment message with large price discount",{"label":25,"type":15,"description":26,"interventionNames":27},"$9990 plus coupon","Dental appointment message with intermediate price discount and coupon",[28],"Behavioral: Dental appointment message with intermediate price discount and coupon",[30,34,37],{"type":31,"name":16,"description":32,"armGroupLabels":33,"otherNames":12},"BEHAVIORAL","Patients receive a WhatsApp message offering a preventive dental check-up for $9,990.",[14],{"type":31,"name":21,"description":35,"armGroupLabels":36,"otherNames":12},"Patients receive a WhatsApp message offering a preventive dental check-up for $4,990.",[20],{"type":31,"name":26,"description":38,"armGroupLabels":39,"otherNames":12},"Patients receive a WhatsApp message offering a preventive dental check-up for $9990, plus a coupon for future treatments.",[25],[41],{"facility":42,"status":43,"city":44,"state":12,"zip":12,"country":45,"countryCode":46,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"Partnering clinic network","RECRUITING","Santiago","Chile","CL",{"type":48,"coordinates":49},"Point",[50,51],-70.64827,-33.45694,{"lat":51,"lon":50},[54],{"name":55,"role":56,"phone":57,"phoneExt":58,"email":59},"Daniel Schwartz","CONTACT","979984165","56","daschwar@dii.uchile.cl",{"type":61,"investigatorFullName":12,"investigatorTitle":12,"investigatorAffiliation":12,"oldNameTitle":12,"oldOrganization":12},"SPONSOR","100628769",false,"NCT07465952","The Effects of Price Reductions on Uptake of Preventive Dental Care","Two groups are considered for this experiment, each defined by the following criteria:\n\nGroup 1:\n\n* Patients who have an appointment scheduled within the next 1 to 7 days\n* The appointment must be scheduled in the medical area only\n* The appointment must be at a center that also offers dental services\n* Patients who have not received a preventive dental message in the last month\n* Patients over 18 years old\n* Patients with a valid phone number to receive WhatsApp messages\n* Patients who have not attended a dental appointment in the last 6 months\n* Patients who do not have a future dental appointment scheduled\n\nGroup 2:\n\n* Patients who do not meet the criteria for Group 1 and who have an appointment the following day or attended an appointment the previous day\n* The appointment may be in the Medical, Laboratory, Imaging, Telemedicine, Kinesiology, Vaccination, or Procedures areas\n* Patients who have not received a preventive dental message in the last month\n* Patients over 18 years old\n* Patients with a valid phone number to receive WhatsApp messages\n* Patients who have not attended a dental appointment in the last 6 months\n* Patients who do not have a future dental appointment scheduled\n\n58.33% of the participants will be allocated to the large discount condition, 27.78% allocated to the intermediate discount condition, and 13.89% allocated to the intermediate discount + voucher condition.","ALL","18 Years","70 Years",{"count":71,"type":72},172800,"ESTIMATED","INTERVENTIONAL",[75],"NA","This study evaluates the effectiveness of price discounts in encouraging patients to schedule dental check-ups. Patients will be randomized to receive WhatsApp messages offering a preventive dental check-up at different price levels with or without a discount coupon for future dental treatments.",[78],"Preventive Oral Health",[80,81,82],"behavioral science","text messages","patient outreach","2026-05-06",{"date":85,"type":86},"2026-05-11","ACTUAL",{"date":88,"type":86},"2026-03-02",{"date":90,"type":72},"2026-06",{"name":5,"class":6},1]