[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100626802":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":19,"centralContacts":23,"locations":10,"responsibleParty":29,"collaborators":10,"id":31,"slug":32,"hasResults":33,"nctId":34,"briefTitle":35,"officialTitle":36,"acronym":10,"eligibilityCriteria":37,"healthyVolunteers":33,"sex":38,"minAge":39,"maxAge":10,"enrollmentInfo":40,"targetDuration":43,"studyType":44,"phases":10,"briefSummary":45,"conditions":46,"keywords":50,"overallStatus":54,"whyStopped":10,"lastUpdateSubmitDate":55,"lastUpdatePostDateStruct":56,"startDateStruct":59,"completionDateStruct":61,"leadSponsor":63,"locationsCount":10},{"fullName":5,"class":6},"The First Hospital of Jilin University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Critically ill adults admitted to the ICU",null,"Consecutive adult critically ill patients (≥18 years) admitted to the ICU will be enrolled if ICU stay is expected to be ≥48 hours. Eligible participants must have paired plasma and urine samples obtainable within 24 hours of ICU admission and be able to undergo daily gastrointestinal function assessment for AGI grading. Exclusion criteria: pre-existing inflammatory bowel disease or short bowel syndrome; chronic intestinal failure requiring long-term parenteral nutrition; pregnancy; refusal or withdrawal of informed consent. Exposure of interest is plasma and urine intestinal fatty acid-binding protein (I-FABP) concentrations measured within 24 hours of ICU admission (continuous variables). Paired plasma and urine are collected within 24 hours and repeated on ICU day 3.",[13],"Other: Plasma and urine I-FABP measurement",[15],{"type":6,"name":16,"description":17,"armGroupLabels":18,"otherNames":10},"Plasma and urine I-FABP measurement","Paired plasma and urine samples will be collected within 24 hours of ICU admission to quantify intestinal fatty acid-binding protein (I-FABP) concentrations (continuous measures) using a standardized laboratory assay. A second paired sampling will be performed on ICU day 3 to assess changes over time. No therapeutic intervention is assigned; this study is observational.",[9],[20],{"name":21,"affiliation":5,"role":22},"Hongxiang Li","STUDY_CHAIR",[24],{"name":25,"role":26,"phone":27,"phoneExt":10,"email":28},"Yanhua Li","CONTACT","86-15804301738","liyanhua@jlu.edu.cn",{"type":30,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100626802","enterocyte-injury-and-acute-gastrointestinal-dysfunction-in-critical-illness-100626802",false,"NCT07440368","Enterocyte Injury and Acute Gastrointestinal Dysfunction in Critical Illness","Enterocyte Injury and Acute Gastrointestinal Dysfunction in Critical Illness: A Prospective Observational Study of Blood and Urinary Intestinal Fatty Acid-Binding Protein(Implications for Sepsis Heterogeneity）","Inclusion Criteria:\n\n* 1、 Age ≥18 years.\n* 2 、Admission to the ICU with an expected ICU stay ≥48 hours.\n* 3 、Availability of paired plasma and urine samples within 24 hours of ICU admission.\n* 4 、Feasible daily gastrointestinal function assessment to complete AGI grading (ESICM definition).\n\nExclusion Criteria:\n\n* 1、 Pre-existing inflammatory bowel disease.\n* 2 、Short bowel syndrome.\n* 3、 Chronic intestinal failure requiring long-term parenteral nutrition.\n* 4、 Pregnancy.\n* 5 、Refusal or withdrawal of informed consent.","ALL","18 Years",{"count":41,"type":42},500,"ESTIMATED","28 Days","OBSERVATIONAL","Acute gastrointestinal injury (AGI) is a common but not fully understood organ dysfunction in critically ill patients. Current AGI grading systems rely primarily on clinical presentation and feeding tolerance, which are inherently subjective and may not accurately reflect the underlying biological severity of intestinal damage.\n\nIntestinal fatty acid-binding protein (I-FABP) is a protein expressed almost exclusively in the cytoplasm of mature small intestinal epithelial cells. In cases of ischemia, inflammation, or mechanical injury, I-FABP is rapidly released into the bloodstream and subsequently excreted in the urine. These characteristics make I-FABP a highly specific biomarker for intestinal epithelial cell injury and intestinal ischemia.\n\nA prospective study combining paired blood and urine I-FABP measurements, standardized AGI assessment, and careful consideration of surgical status was conducted to elucidate the role of intestinal epithelial cell injury in acute gastrointestinal dysfunction.",[47,48,49],"Patients Admitted to the ICU","Expected Hospital Stay ≥48 Hours","Adult",[51,52,53],"Intestinal Fatty Acid-Binding Protein","Acute Gastrointestinal Dysfunction","Critical Illness","NOT_YET_RECRUITING","2026-02-23",{"date":57,"type":58},"2026-02-27","ACTUAL",{"date":60,"type":42},"2026-03-01",{"date":62,"type":42},"2026-12-01",{"name":5,"class":6}]