[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100611979":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":11,"centralContacts":27,"locations":37,"responsibleParty":51,"collaborators":11,"id":54,"slug":11,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":11,"eligibilityCriteria":59,"healthyVolunteers":55,"sex":60,"minAge":61,"maxAge":11,"enrollmentInfo":62,"targetDuration":11,"studyType":65,"phases":66,"briefSummary":68,"conditions":69,"keywords":11,"overallStatus":40,"whyStopped":11,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":76,"completionDateStruct":78,"leadSponsor":80,"locationsCount":81},{"fullName":5,"class":6},"Assiut University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Flexible Ureteroscopy","ACTIVE_COMPARATOR",null,[13],"Procedure: Flexible URS",{"label":15,"type":16,"description":11,"interventionNames":17},"Semi-Rigid Ureteroscopy","EXPERIMENTAL",[18],"Procedure: Semi-Rigid URS",[20,24],{"type":21,"name":22,"description":22,"armGroupLabels":23,"otherNames":11},"PROCEDURE","Flexible URS",[9],{"type":21,"name":25,"description":25,"armGroupLabels":26,"otherNames":11},"Semi-Rigid URS",[15],[28,33],{"name":29,"role":30,"phone":31,"phoneExt":11,"email":32},"Omar Ahmed Hamada Ali","CONTACT","+201092868286","omarahmedhamada74@gmail.com",{"name":34,"role":30,"phone":35,"phoneExt":11,"email":36},"Mohamed Ragab Abdallah, Doctor","+201066237580","mohammedurology1290@gmail.com",[38],{"facility":39,"status":40,"city":41,"state":42,"zip":11,"country":43,"countryCode":44,"cosmosGeoPoint":45,"geoPoint":50,"contacts":11},"Assiut Hospital","RECRUITING","Asyut","Asyut Governorate","Egypt","EG",{"type":46,"coordinates":47},"Point",[48,49],31.18368,27.18096,{"lat":49,"lon":48},{"type":52,"investigatorFullName":29,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":11,"oldOrganization":11},"PRINCIPAL_INVESTIGATOR","Urology Resident","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":63,"type":64},100,"ESTIMATED","INTERVENTIONAL",[67],"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",[70,9,71],"Ureteric Stone","Upper Urinary Tract Stones","2025-11-22",{"date":74,"type":75},"2025-11-25","ACTUAL",{"date":77,"type":75},"2025-10-01",{"date":79,"type":64},"2027-01-01",{"name":5,"class":6},1]