[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100635384":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":29,"centralContacts":33,"locations":25,"responsibleParty":41,"collaborators":25,"id":43,"slug":25,"hasResults":44,"nctId":45,"briefTitle":46,"officialTitle":47,"acronym":25,"eligibilityCriteria":48,"healthyVolunteers":49,"sex":50,"minAge":51,"maxAge":25,"enrollmentInfo":52,"targetDuration":25,"studyType":55,"phases":56,"briefSummary":58,"conditions":59,"keywords":61,"overallStatus":66,"whyStopped":25,"lastUpdateSubmitDate":67,"lastUpdatePostDateStruct":68,"startDateStruct":71,"completionDateStruct":73,"leadSponsor":74,"locationsCount":25},{"fullName":5,"class":6},"London School of Hygiene and Tropical Medicine","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"AI-driven chatbot","EXPERIMENTAL","An interactive, web-based, AI-driven chatbot intervention designed to counter vaccine misinformation. It can be accessed via a personal computer, tablet, or mobile device through a web- browser link.",[13],"Behavioral: AI-driven chatbot",{"label":15,"type":16,"description":17,"interventionNames":18},"Social media infographic","ACTIVE_COMPARATOR","A UNICEF social media infographic with three \"myth vs. fact\" statements on vaccination that correspond to the same misinformation tactics explained by the MindShield chatbot.",[19],"Behavioral: Social media infographic",[21,26],{"type":22,"name":9,"description":23,"armGroupLabels":24,"otherNames":25},"BEHAVIORAL","A tailored AI-driven chatbot designed to counter vaccine misinformation.",[9],null,{"type":22,"name":15,"description":27,"armGroupLabels":28,"otherNames":25},"A UNICEF social media infographic with three \"myth vs. fact\" statements on vaccination.",[15],[30],{"name":31,"affiliation":5,"role":32},"Leesa Lin, PhD","PRINCIPAL_INVESTIGATOR",[34,38],{"name":31,"role":35,"phone":36,"phoneExt":25,"email":37},"CONTACT","+44 (0)20 7636 8636","Leesa.Lin@lshtm.ac.uk",{"name":39,"role":35,"phone":25,"phoneExt":25,"email":40},"Kana Kobayashi, MSPH","Kana.Kobayashi@lshtm.ac.uk",{"type":42,"investigatorFullName":25,"investigatorTitle":25,"investigatorAffiliation":25,"oldNameTitle":25,"oldOrganization":25},"SPONSOR","100635384",false,"NCT07551986","Building Cognitive Resilience to Vaccine Misinformation Using AI in Europe","Building Cognitive Resilience to Vaccine Misinformation Using Conversational AI: Evidence From a Multi-Country European Randomised Trial","Inclusion Criteria:\n\n* Parents or caregivers with children under 18 years old in the five target countries (UK, Netherlands, Croatia, Latvia, and Slovakia); and\n* Those who have regular access to a digital device and the internet\n\nExclusion Criteria:\n\n* Participants who do not meet the inclusion criteria.",true,"ALL","20 Years",{"count":53,"type":54},5000,"ESTIMATED","INTERVENTIONAL",[57],"NA","This multi-country trial evaluates an AI chatbot designed to counter cognitive biases and inoculate parents against vaccine misinformation, embedded within a large survey across five European countries (n=5,000). Scaled from a 2026 single-country study, outcomes compare behavioural and attitudinal responses against standard-of-care materials (e.g., UNICEF infographics) to identify effective, scalable misinformation interventions.",[60],"Healthy",[62,63,64,65],"childhood vaccine","AI","chatbot","randomized controlled trial","NOT_YET_RECRUITING","2026-04-27",{"date":69,"type":70},"2026-05-01","ACTUAL",{"date":72,"type":54},"2026-04",{"date":72,"type":54},{"name":5,"class":6}]