[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100571570":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":31,"locations":41,"responsibleParty":62,"collaborators":65,"id":69,"slug":70,"hasResults":71,"nctId":72,"briefTitle":73,"officialTitle":74,"acronym":26,"eligibilityCriteria":75,"healthyVolunteers":71,"sex":76,"minAge":77,"maxAge":26,"enrollmentInfo":78,"targetDuration":26,"studyType":81,"phases":82,"briefSummary":84,"conditions":85,"keywords":88,"overallStatus":43,"whyStopped":26,"lastUpdateSubmitDate":93,"lastUpdatePostDateStruct":94,"startDateStruct":97,"completionDateStruct":99,"leadSponsor":101,"locationsCount":102},{"fullName":5,"class":6},"University of California, San Diego","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"p-Tm:YAG laser system","EXPERIMENTAL","This is a new laser system developed by Dornier, the Thulio pulsed Thulium:YAG (p-Tm:YAG)",[13],"Device: Thulio pulsed Thulium:YAG (p-Tm:YAG)",{"label":15,"type":16,"description":17,"interventionNames":18},"TFL laser system","ACTIVE_COMPARATOR","The thulium fiber laser (TFL) has demonstrated effectiveness in this procedure.",[19],"Device: Thulium Laser Fiber (TFL)",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DEVICE","Thulio pulsed Thulium:YAG (p-Tm:YAG)","A new laser system developed by Dornier, the Thulio pulsed Thulium:YAG (p-Tm:YAG ) is beginning to be studied in vitro and in vivo. Dornier Thulio p-Tm:YAG may represent an attractive new laser platform, with comparable properties to TFL including decreased retropulsion, smaller dust, and improved ablation efficiency relative to Ho:YAG.",[9],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Thulium Laser Fiber (TFL)","The thulium fiber laser (TFL) has demonstrated effectiveness in this procedure",[15],[32,37],{"name":33,"role":34,"phone":35,"phoneExt":26,"email":36},"Jade McDermott, BS","CONTACT","858-777-9721","j3mcdermott@health.ucsd.edu",{"name":38,"role":34,"phone":39,"phoneExt":26,"email":40},"Roger L Sur, MD","(858) 657-7876","rlsur@health.ucsd.edu",[42],{"facility":5,"status":43,"city":44,"state":45,"zip":46,"country":47,"countryCode":48,"cosmosGeoPoint":49,"geoPoint":54,"contacts":55},"RECRUITING","San Diego","California","92122","United States","US",{"type":50,"coordinates":51},"Point",[52,53],-117.16472,32.71571,{"lat":53,"lon":52},[56,59,60],{"name":57,"role":34,"phone":35,"phoneExt":26,"email":58},"Jamie L Finegan, BA","jlfinegan@health.ucsd.edu",{"name":38,"role":34,"phone":39,"phoneExt":26,"email":40},{"name":38,"role":61,"phone":26,"phoneExt":26,"email":26},"PRINCIPAL_INVESTIGATOR",{"type":61,"investigatorFullName":63,"investigatorTitle":64,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"Roger L Sur, M.D.","Professor of Urology",[66],{"name":67,"class":68},"Dornier MedTech Systems","INDUSTRY","100571570","thulium-fiber-laser-tfl-vs-thulio-pulsed-thuliumyag-p-tmyag-100571570",false,"NCT06721975","Thulium Fiber Laser (TFL) vs Thulio Pulsed Thulium:YAG (p-Tm:YAG)","Prospective Single-center Study Comparing Thulium Fiber Laser to Pulsed Thulium:YAG Laser in the Ureteroscopic Treatment of Nephrolithiasis","Inclusion Criteria:\n\n* Solitary renal stone 7 to 20 mm in size or in the case of multiple stones the conglomerate diameter (additive maximal diameter of all stones on axial imaging of computed tomography) of 7-20 mm is required\n* Must be a suitable operative candidate for flexible ureteroscopy per American Urological Association guidelines\n* Must be able to give consent\n* Bilateral ureteroscopy will be permitted but only the first side (per surgeon discretion) will be included in the study\n* Surgeons participating in the study must be urological attending surgeons or fellows with subspecialty training in Endourology\n\nExclusion Criteria:\n\n* Concomitant stones in the ureter\n* Prior ipsilateral upper urinary tract reconstructive procedures or history of ipsilateral ureteral stricture\n* Prior radiotherapy to the abdomen or pelvis\n* Neurogenic bladder or spinal cord injury\n* Pregnancy\n* Untreated UTI","ALL","18 Years",{"count":79,"type":80},50,"ESTIMATED","INTERVENTIONAL",[83],"NA","This research study is being conducted to assess the ability and efficiency of two laser systems to break up kidney stones during ureteroscopy with laser lithotripsy for kidney stone treatment.",[86,87],"Kidney Stones","Nephrolithiasis",[89,90,91,92],"laser lithotripsy","laser","nephrolithiasis","kidney stone","2025-08-01",{"date":95,"type":96},"2025-08-03","ACTUAL",{"date":98,"type":96},"2024-08-01",{"date":100,"type":80},"2026-12-31",{"name":5,"class":6},1]