[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100557942":3},{"organization":4,"armGroups":7,"interventions":17,"overallOfficials":10,"centralContacts":10,"locations":23,"responsibleParty":37,"collaborators":10,"id":41,"slug":10,"hasResults":42,"nctId":43,"briefTitle":44,"officialTitle":45,"acronym":10,"eligibilityCriteria":46,"healthyVolunteers":42,"sex":47,"minAge":48,"maxAge":49,"enrollmentInfo":50,"targetDuration":10,"studyType":53,"phases":10,"briefSummary":54,"conditions":55,"keywords":10,"overallStatus":58,"whyStopped":10,"lastUpdateSubmitDate":59,"lastUpdatePostDateStruct":60,"startDateStruct":63,"completionDateStruct":65,"leadSponsor":67,"locationsCount":68},{"fullName":5,"class":6},"Cancer Institute and Hospital, Chinese Academy of Medical Sciences","OTHER",[8,13],{"label":9,"type":10,"description":10,"interventionNames":11},"Breast cancer patients with bone metastasis",null,[12],"Other: Breast cancer patients with bone metastasis",{"label":14,"type":10,"description":10,"interventionNames":15},"Breast cancer patients without bone metastasis",[16],"Other: Breast cancer patients without bone metastasis",[18,21],{"type":6,"name":9,"description":19,"armGroupLabels":20,"otherNames":10},"This study is an observational study",[9],{"type":6,"name":14,"description":19,"armGroupLabels":22,"otherNames":10},[14],[24],{"facility":25,"status":10,"city":26,"state":27,"zip":28,"country":29,"countryCode":30,"cosmosGeoPoint":31,"geoPoint":36,"contacts":10},"National Cancer Center\u002FNational Clinical Research Center for Cancer\u002FCancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College","Beijing","Beijing Municipality","100021","China","CN",{"type":32,"coordinates":33},"Point",[34,35],116.39723,39.9075,{"lat":35,"lon":34},{"type":38,"investigatorFullName":39,"investigatorTitle":40,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Ma Fei，MD","Chief physician","100557942",false,"NCT06544668","A Study for Dynamic Prediction Model of Breast Cancer Bone Metastases","A Clinical Study to Establish a Dynamic Prediction Model for Bone Metastases Based on Breast Cancer Real-world Data","Inclusion Criteria:\n\n1. Patients diagnosed with breast cancer by histopathology;\n2. Age between 20 and 70 years old;\n3. The first diagnosis time is between 2010 and 2020;\n4. Complete diagnosis and treatment information, including basic information, breast cancer diagnosis, surgery, recurrence diagnosis data (including the diagnosis of the metastasis sites), anti-tumor treatment data, bone health and bone metastasis-related diagnosis and treatment data, etc.;\n5. Sufficient available follow-up information.\n\nExclusion Criteria:\n\n1. Missing important basic information (including initial and recurrent pathology, stage, pathological grade and time, surgery time, and drug treatment);\n2. With distant metastasis at the initial diagnosis;\n3. Patients with autoimmune diseases or aggressive viral infections (such as HIV or hepatitis);\n4. Other malignant tumors;\n5. Unclear information about distant metastasis.","FEMALE","20 Years","70 Years",{"count":51,"type":52},3500,"ESTIMATED","OBSERVATIONAL","The purpose of this study is to identify the risk factors of bone metastasis in breast cancer patients so as to develop a dynamic prediction model using real world clinical data. The multicenter data will be retrospectively collected, and the clinical characteristics related to bone metastasis will be analyzed.",[56,57],"Breast Cancer","Bone Metastases","NOT_YET_RECRUITING","2024-08-05",{"date":61,"type":62},"2024-08-09","ACTUAL",{"date":64,"type":52},"2024-08-06",{"date":66,"type":52},"2025-01-20",{"name":5,"class":6},1]