{"type":"trials","record":{"id":25720,"source_id":"clinicaltrials-gov","external_id":"NCT03721471","title":"Outcome of Very Old Patients Admitted for Elective Major Surgery, the Effect of Frailty","brief_summary":"The aim of the study is to investigate the effect of frailty in patients ≥ 80 years admitted for elective major abdominal surgery.","overall_status":"Completed","phases":[],"study_type":"OBSERVATIONAL","sponsor":"Haukeland University Hospital","enrollment":144,"countries":["Norway"],"start_date":"2018-10-01","completion_date":"2024-10-02","last_update_date":"2026-09-24","source_url":"https://clinicaltrials.gov/study/NCT03721471","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Completed. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-24T13:17:23.424003+00:00","last_seen_at":"2026-09-25T06:10:07.378+00:00","metadata":{"sex":"ALL","acronym":null,"age_range":"80 Years","comparator":null,"organization":"Haukeland University Hospital","interventions":["Scoring of frailty"],"registry_source":"ClinicalTrials.gov","outcome_measures":["Time to death — Up to one year","Postoperative complications — Up to 90 days after surgery","Discharge to institution — Up to 90 days after surgery","Worsening functional status — 1 year postoperatively.","Mortality at 30 days — 30 days after surgery","Mortality at 90 days — 90 days after surgery"],"design_description":null,"source_has_results":false},"controlled_terms":["Frail Elderly Syndrome","Surgery--Complications","Scoring of frailty"],"relevance_confidence":100,"source_quality_score":100,"freshness_score":100,"publication_state":"published","match_explanation":"Title contains controlled term: frailty.","quality_checked_at":"2026-09-25T06:10:20.034853+00:00","duplicate_cluster_key":"id:nct03721471","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2018-10-01 to 2024-10-02","comparator":null,"confidence":"structured-source","population":"ALL · 80 Years","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":"2026-09-25T06:10:07.378Z","intervention":["Scoring of frailty"],"participants":144,"study_design":"OBSERVATIONAL","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":["Time to death — Up to one year","Postoperative complications — Up to 90 days after surgery","Discharge to institution — Up to 90 days after surgery","Worsening functional status — 1 year postoperatively.","Mortality at 30 days — 30 days after surgery","Mortality at 90 days — 90 days after surgery"],"regulatory_context":"Trial registration is not regulatory approval and does not establish that an intervention is available."},"clinical_trial_topics":[{"topic_slug":"frailty","is_published":true,"match_reasons":["Title contains controlled term: frailty.","Abstract contains controlled term: frailty.","Source terminology contains: frailty.","Title supplies longevity context: frailty, frail.","Study type is explicitly identified as OBSERVATIONAL."],"matched_fields":["title","abstract","controlled terminology","title context","study type"],"relevance_score":100,"intelligence_topics":{"name":"Frailty","slug":"frailty"}}],"content_sources":{"name":"ClinicalTrials.gov","homepage_url":"https://clinicaltrials.gov/"}},"canonical_url":"https://www.immortal.life/trials/25720","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}