[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100645458":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":21,"centralContacts":25,"locations":30,"responsibleParty":48,"collaborators":50,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":20,"eligibilityCriteria":60,"healthyVolunteers":56,"sex":61,"minAge":62,"maxAge":20,"enrollmentInfo":63,"targetDuration":20,"studyType":66,"phases":67,"briefSummary":69,"conditions":70,"keywords":74,"overallStatus":33,"whyStopped":20,"lastUpdateSubmitDate":80,"lastUpdatePostDateStruct":81,"startDateStruct":84,"completionDateStruct":86,"leadSponsor":88,"locationsCount":89},{"fullName":5,"class":6},"University of Oklahoma","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Discrete choice experiment (DCE) cohort","EXPERIMENTAL","Adult participants (21+) enrolled in this single-arm cohort will complete a computer-based discrete choice experiment during a single study visit (conducted online). They will review a series of hypothetical cannabis products and select their preferred options.",[13],"Behavioral: Discrete choice experiment (DCE) survey-experiment",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":20},"BEHAVIORAL","Discrete choice experiment (DCE) survey-experiment","A discrete choice experiment (DCE) consisting of 16 distinct choice sets. Each choice set presents combinations of the following attributes: 1) Cannabis package style: 1) \"Standardized\" plain package, 2) plain package with brand logo and fonts, 3) brand color background with brand logo and fonts, and 4) fully branded with brand imagery, brand logo, and brand descriptors and fonts. Branding type: 1) Adventure brand vs. 2) Earthy brand. Health warning size: 1) Small (20% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions vs. 2) Large (40% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions. Product THC content: 1) Low THC vs. 2) High THC. Product type: 1) Joints, 2) Vape, 3) Edibles, and 4) Drinks. Participants will rate all combinations of product attributes.",[9],null,[22],{"name":23,"affiliation":5,"role":24},"Zachary Massey, PhD","PRINCIPAL_INVESTIGATOR",[26],{"name":23,"role":27,"phone":28,"phoneExt":20,"email":29},"CONTACT","405-271-6872","Zachary-Massey@ou.edu",[31],{"facility":32,"status":33,"city":34,"state":35,"zip":36,"country":37,"countryCode":38,"cosmosGeoPoint":39,"geoPoint":44,"contacts":45},"University of OKlahoma","RECRUITING","Oklahoma City","Oklahoma","73104","United States","US",{"type":40,"coordinates":41},"Point",[42,43],-97.51643,35.46756,{"lat":43,"lon":42},[46],{"name":23,"role":27,"phone":28,"phoneExt":20,"email":47},"zachary-massey@ou.edu",{"type":49,"investigatorFullName":20,"investigatorTitle":20,"investigatorAffiliation":20,"oldNameTitle":20,"oldOrganization":20},"SPONSOR",[51],{"name":52,"class":53},"National Institute on Drug Abuse (NIDA)","NIH","100645458","testing-warning-labels-for-retail-cannabis-products-using-a-discrete-choice-experiment-100645458",false,"NCT07701304","Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment","Developing and Testing Warning Labels for Retail Cannabis Products","Eligibility for participation includes: 1) being 21 years of age or older, 2) being able to speak and understand English, 3) self-reported having consumed cannabis in the last 30 days (any mode, e.g., flower, vape, edible, etc.), and 4) residing in a U.S. state or jurisdiction where retail (i.e., non-medical) cannabis use is legal.","ALL","21 Years",{"count":64,"type":65},450,"ESTIMATED","INTERVENTIONAL",[68],"NA","This discrete choice experiment (DCE) study aims to address gaps in cannabis packaging regulatory research by testing how variations in cannabis packaging and health warning design impact reactions to packaging and intentions about cannabis use. The goal of this work is to identify the most effective combination of health warning features to improve consumer awareness of cannabis health risks. Establishing criteria for cannabis products in the US is critical because inconsistent state guidelines have resulted in contradictory policies in legal retail states, arguably leading to increased hazardous use and failure to meet public health standards. The contributions of this study's outcomes are expected to be significant because they will benefit public health as cannabis becomes available in legal retail markets and regulatory and governmental agencies seek effective ways to communicate cannabis risks to the public.",[71,72,73],"Cannabis Use","Risk Perception","Decision Making",[75,76,77,78,79],"Cannabis warning labels","Discrete choice experiment","Risk perception","Cannabis use","Health communication","2026-07-24",{"date":82,"type":83},"2026-07-27","ACTUAL",{"date":85,"type":83},"2026-05-19",{"date":87,"type":65},"2026-12-31",{"name":5,"class":6},1]