[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646868":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":12,"locations":10,"responsibleParty":18,"collaborators":10,"id":20,"slug":21,"hasResults":22,"nctId":23,"briefTitle":24,"officialTitle":25,"acronym":10,"eligibilityCriteria":26,"healthyVolunteers":22,"sex":27,"minAge":10,"maxAge":10,"enrollmentInfo":28,"targetDuration":10,"studyType":31,"phases":10,"briefSummary":32,"conditions":33,"keywords":10,"overallStatus":36,"whyStopped":10,"lastUpdateSubmitDate":37,"lastUpdatePostDateStruct":38,"startDateStruct":41,"completionDateStruct":43,"leadSponsor":45,"locationsCount":10},{"fullName":5,"class":6},"First Affiliated Hospital of Fujian Medical University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":10},"RARP Cohort",null,"Consecutive patients with localized prostate cancer who underwent robot-assisted radical prostatectomy (RARP) at Fujian Medical University Affiliated First Hospital between January 2024 and May 2026. Patients are followed postoperatively for biochemical recurrence (BCR). Clinical, imaging, and pathological data are collected to identify predictors of BCR.",[13],{"name":14,"role":15,"phone":16,"phoneExt":10,"email":17},"ZhongHua Zhu","CONTACT","+8618060692924","drzhuzh@163.com",{"type":19,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100646868","predictors-of-bcr-after-rarp-for-localized-prostate-cancer-a-retrospective-analysis-100646868",false,"NCT07682584","Predictors of BCR After RARP for Localized Prostate Cancer: A Retrospective Analysis","Predictors of Biochemical Recurrence After Robot-Assisted Radical Prostatectomy in Patients With Localized Prostate Cancer: A Retrospective Analysis","Inclusion Criteria:\n\n* Pathologically confirmed prostate adenocarcinoma\n\nClinical stage localized prostate cancer (T1-T2, N0M0)\n\nUnderwent robot-assisted radical prostatectomy (RARP)\n\nAge ≥ 18 years\n\nComplete clinical data including preoperative PSA, Gleason score, pathological T stage, and surgical margin status\n\nAt least one postoperative PSA measurement available to determine biochemical recurrence status\n\nSigned informed consent for surgery and data use (or ethics committee waiver of consent for retrospective analysis)\n\nExclusion Criteria:\n\n* Received neoadjuvant endocrine therapy, radiotherapy, or chemotherapy prior to surgery\n\nConcurrent active malignancy other than non-melanoma skin cancer\n\nPreoperative evidence of lymph node metastasis (N+), distant metastasis (M1), or clinical stage T3-T4\n\nMissing core predictors (e.g., preoperative PSA, Gleason score, pathological T stage) or insufficient postoperative PSA data to determine BCR status\n\nReceived adjuvant radiotherapy or adjuvant endocrine therapy before biochemical recurrence was determined\n\nSevere cardiac, hepatic, or renal dysfunction, or life expectancy \\\u003C 1 year","MALE",{"count":29,"type":30},200,"ESTIMATED","OBSERVATIONAL","This retrospective study aims to identify predictive factors for biochemical recurrence (BCR) in patients with localized prostate cancer who underwent robot-assisted radical prostatectomy (RARP). BCR is defined as a rise in prostate-specific antigen (PSA) levels after surgery, which may indicate residual or recurrent disease.\n\nWe will analyze clinical, imaging, and pathological data from patients treated at Fujian Medical University Affiliated First Hospital between January 2024 and May 2026. Key variables include preoperative PSA, Gleason score, pathological T stage, surgical margin status, perineural invasion, prostate volume, MRI-based parameters (e.g., Pi-RADS score, SUVmax on PSMA PET\u002FCT), and inflammatory markers.\n\nUsing logistic regression and machine learning approaches (random forest, XGBoost, SVM), we will develop and internally validate a predictive model to estimate individual BCR risk. The goal is to improve post-surgical risk stratification, guide personalized monitoring, and support clinical decision-making regarding adjuvant therapy.\n\nThis research has received ethical approval. Data will be anonymized and handled confidentially. Findings will be disseminated to inform clinical practice and future research.",[34,35],"Prostate Cancer","Biochemical Recurrence","NOT_YET_RECRUITING","2026-06-28",{"date":39,"type":40},"2026-07-06","ACTUAL",{"date":42,"type":30},"2026-07-15",{"date":44,"type":30},"2026-09-30",{"name":5,"class":6}]