{"type":"trials","record":{"id":43740,"source_id":"clinicaltrials-gov","external_id":"NCT07698366","title":"Ultrasound Screening for Early Detection of Breast Cancer in Elderly Women: A Mixed Cluster-Individual RCT","brief_summary":"This multicenter study aims to evaluate whether active breast ultrasound screening can improve the early diagnosis rate of breast cancer in women aged 65 to 80 years, compared with routine elderly health management. The study uses a mixed cluster-individual randomized design based on community implementation capacity. A subgroup of pilot communities will simultaneously collect ultrasound AI data for research performance analysis only, without affecting clinical diagnosis.","overall_status":"Not Yet Recruiting","phases":[],"study_type":"INTERVENTIONAL","sponsor":"The First Affiliated Hospital with Nanjing Medical University","enrollment":82440,"countries":["China"],"start_date":"2026-07-10","completion_date":"2029-12-31","last_update_date":"2026-07-14","source_url":"https://clinicaltrials.gov/study/NCT07698366","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Not Yet Recruiting. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-25T01:25:40.376869+00:00","last_seen_at":"2026-09-25T03:15:05.717+00:00","metadata":{"acronym":null,"organization":"The First Affiliated Hospital with Nanjing Medical University","source_has_results":false},"controlled_terms":["Breast Neoplasms","Early Detection of Cancer","Standardized Breast Ultrasound Screening"],"relevance_confidence":100,"source_quality_score":100,"freshness_score":100,"publication_state":"published","match_explanation":"Title contains controlled term: cancer.","quality_checked_at":"2026-09-25T03:15:14.669058+00:00","duplicate_cluster_key":"id:nct07698366","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2026-07-10 to 2029-12-31","comparator":null,"confidence":"structured-source","population":null,"provenance":{"duration":"start_date and completion_date","comparator":"registry arm fields","population":"registry eligibility fields","intervention":"registry intervention fields","participants":"enrollment","study_design":"study_type and registry design fields","evidence_stage":"phases","reported_outcome":"not available","outcomes_measured":"registry outcome-measure fields"},"generated_at":"2026-09-25T03:38:00.457301+00:00","intervention":[],"participants":82440,"study_design":"INTERVENTIONAL","subject_scope":"Human clinical study registration","evidence_stage":"Phase not reported","safety_context":"Eligibility, adverse-event details, and clinical decisions must be checked in the official registry and with qualified clinicians.","source_support":"Structured registry protocol metadata; no finding-level conclusion is generated.","main_limitation":"This is a study registration. No reusable structured result is available here, so it cannot show whether the intervention worked or was safe.","reported_outcome":null,"outcomes_measured":[],"regulatory_context":"Trial registration is not regulatory approval and does not establish that an intervention is available."},"clinical_trial_topics":[{"topic_slug":"cancer-and-aging","is_published":true,"match_reasons":["Title contains controlled term: cancer.","Abstract contains controlled term: cancer.","Source terminology contains: cancer.","Title supplies longevity context: elderly.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["title","abstract","controlled terminology","title context","study type"],"relevance_score":100,"intelligence_topics":{"name":"Cancer and ageing","slug":"cancer-and-aging"}}],"content_sources":{"name":"ClinicalTrials.gov","homepage_url":"https://clinicaltrials.gov/"}},"canonical_url":"https://www.immortal.life/trials/43740","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}