[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"upper-urinary-tract-stones\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:upper-urinary-tract-stones":40},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":4,"hasResults":10,"nctId":11,"briefTitle":12,"officialTitle":13,"acronym":4,"eligibilityCriteria":14,"healthyVolunteers":10,"sex":15,"minAge":16,"maxAge":4,"enrollmentInfo":17,"targetDuration":4,"studyType":20,"phases":21,"briefSummary":23,"conditions":24,"keywords":4,"overallStatus":28,"whyStopped":4,"lastUpdateSubmitDate":29,"lastUpdatePostDateStruct":30,"startDateStruct":33,"completionDateStruct":35,"leadSponsor":37,"locationsCount":5},"100611979",false,"NCT07247617","Flexible vs Semi-rigid URS","Semi-rigid Ureteroscopy Versus Flexible Ureteroscopy in Upper Third Ureteric Stones Management: a Prospective Randomized Trial","Inclusion Criteria:\n\n* Patients ≥18 years\n* upper ureteric stone\n* ≤20 mm\n\nExclusion Criteria:\n\n* Associated renal stones\n* Any contraindications to Anesthesia","ALL","18 Years",{"count":18,"type":19},100,"ESTIMATED","INTERVENTIONAL",[22],"NA","To compare the efficacy, safety, success rate, operative time, and cost-effectiveness of flexible ureteroscopy versus semirigid ureteroscopy in the management of upper ureteric stones smaller than 2 cm.\n\nThe investigators' main concern in this study is Upper third ureteric stones to determine which cases can be treated with Semi-Rigid Ureteroscopy, and which one needs flexible ureteroscopy. This depends on several factors:\n\n1. Division of the upper third of the ureter\n2. Stone size\n3. Stone impaction\n4. Surgeon experience\n5. Anesthesia\n6. Ureteric dilatation above the stone\n7. Mini endoscopy",[25,26,27],"Ureteric Stone","Flexible Ureteroscopy","Upper Urinary Tract Stones","RECRUITING","2025-11-22",{"date":31,"type":32},"2025-11-25","ACTUAL",{"date":34,"type":32},"2025-10-01",{"date":36,"type":19},"2027-01-01",{"name":38,"class":39},"Assiut University","OTHER",""]