[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"ureter\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:ureter":26},{"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":13,"acronym":4,"eligibilityCriteria":14,"healthyVolunteers":11,"sex":15,"minAge":16,"maxAge":4,"enrollmentInfo":17,"targetDuration":4,"studyType":20,"phases":21,"briefSummary":23,"conditions":24,"keywords":27,"overallStatus":33,"whyStopped":4,"lastUpdateSubmitDate":34,"lastUpdatePostDateStruct":35,"startDateStruct":38,"completionDateStruct":40,"leadSponsor":42,"locationsCount":5},"100657294","phase-4-randomised-controlled-trial-of-fluorescent-urography-using-intravenous-methylene-blue-compared-to-white-light-alone-in-left-sided-colorectal-surgery-100657294",false,"NCT07835932","Randomised Controlled Trial of Fluorescent Urography Using Intravenous Methylene Blue Compared to White Light Alone in Left-sided Colorectal Surgery","Inclusion Criteria:\n\n* Aged ≥18 years\n* Scheduled to undergo open, laparoscopic or robotic left-sided colorectal surgery, including left colectomy, high anterior resection, low anterior resection, abdominoperineal resection, subtotal colectomy and total colectomy.\n\nExclusion Criteria:\n\n* Unable to understand the aims and objectives of this study and unable to give consent for participation\n* Known allergy to methylene blue\n* Pregnant\n* Taking selective serotonin reuptake inhibitors, serotonin and norepinephrine reuptake inhibitors, monoamine oxidase inhibitors, or tricyclic antidepressants (risk of serotonin syndrome)\n* Significant renal or hepatic impairment\n* Presence of renal or ureteric obstruction\n* History of G6PD deficiency (risk of hemolytic anemia)","ALL","18 Years",{"count":18,"type":19},108,"ESTIMATED","INTERVENTIONAL",[22],"PHASE4","This study will see if a blue dye (methylene blue) given into a vein, together with a special camera light, helps surgeons find the left ureter (the tube from the kidney to the bladder) faster during left-sided bowel surgery. Adults having open, laparoscopic, or robotic left-sided colorectal surgery will be randomly assigned to either the blue dye with special light or standard white light alone. The main question is whether the blue dye method finds the ureter more quickly, which could make the operation safer.",[25,26],"Colorectal Surgery","Ureter",[28,29,30,31,32],"Methylene Blue","Fluorescence imaging","Ureter identification","Colorectal surgery","Image-guided surgery","NOT_YET_RECRUITING","2026-09-17",{"date":36,"type":37},"2026-09-23","ACTUAL",{"date":39,"type":19},"2026-10-01",{"date":41,"type":19},"2029-10-01",{"name":43,"class":44},"Chinese University of Hong Kong","OTHER"]