[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"leadSponsorName\":\"Michelle Zeller\",\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:":58},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":33,"overallStatus":45,"whyStopped":4,"lastUpdateSubmitDate":46,"lastUpdatePostDateStruct":47,"startDateStruct":50,"completionDateStruct":52,"leadSponsor":54,"locationsCount":57},"100580704","phase-4-effects-of-donor-recipient-sex-matched-blood-transfusion-on-patient-outcomes-100580704",false,"NCT06840756","Effects of Donor-recipient Sex-matched Blood Transfusion on Patient Outcomes","Effects of Donor-recipient Sex-matched Versus Sex-mismatched Red Blood Cell Transfusion on Outcomes in Critically Ill Adult Patients","SexMATTERS RCT","Inclusion Criteria:\n\n* Adults (age ≥18);\n* Admission to a participating ICU;\n* Requiring RBC transfusion.\n\nExclusion Criteria:\n\n* Requirement for a specialized RBC product or unit not readily available in inventory (e.g., rare blood type, washed RBCs, complex RBC antibodies, etc.);\n* Massively bleeding patient (i.e., ≥4 units of blood ordered at one time, or Massive Hemorrhage Protocol initiated, or an urgent blood request made);\n* Sex unknown or sex other than male or female (i.e. intersex);\n* Do not have a valid Ontario Health Insurance Plan (OHIP) health card number.","ALL","18 Years",{"count":20,"type":21},11082,"ESTIMATED","INTERVENTIONAL",[24],"PHASE4","Red blood cell (RBC) transfusions are selected based upon matching donor and recipient blood group: donor and recipient sex are not considered when selecting blood for transfusion. Hence, transfused patients can currently receive sex-matched and\u002For unmatched RBCs when transfusions are given. Sex-matched stem cell transplants, and some solid organ transplants, have shown that sex-matching donor to recipient improves patient outcomes. Recent exploratory studies have also suggested that patient outcomes could be improved by sex-matching for RBC transfusion. There is emerging evidence of underlying biologic mechanism(s) to support these observations. This study is designed as a randomized controlled trial and will explore the impact on patients who receive RBC transfusions from donors of the same sex (\"sex-matched\") compared with donors of the opposite sex (\"sex-mismatched\").\n\nThe trial will study adult patients admitted to the Intensive Care Unit who require an RBC transfusion. Patients will be assigned (through a process called randomization) to receive sex-matched RBCs or sex-mismatched RBCs to determine if there is a difference in mortality between those receiving matched versus mismatched RBCs. The results of this trial could have direct implications on resources, blood inventory, and RBC transfusion ordering practices.",[27,28,29,30,31,32],"Red Blood Cell Transfusions","Sex Differences","Health Services","Critically Ill Intensive Care Unit Patients","Hematology","Cardiovascular",[34,35,36,37,38,39,40,41,42,43,44],"transfusions","red blood cell transfusions","sex-matched","sex-mismatched","intensive care unit","ICU","cardiovascular","circulatory","hematology","mortality","blood donor characteristics","RECRUITING","2026-03-10",{"date":48,"type":49},"2026-03-12","ACTUAL",{"date":51,"type":49},"2025-09-11",{"date":53,"type":21},"2029-03-31",{"name":55,"class":56},"Michelle Zeller","OTHER",8,""]