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Tundra lists 3 Ureteral Stent clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT06045962
Optimal Stent Duration After Ureteroscopy
The purpose of this study is to determine how soon ureteral stents can be safely removed following surgery.
Gender: All
Ages: 18 Years - Any
Updated: 2026-09-17
10 states
NCT05738304
Ureteral Stenting After Retrograde Intrarenal Surgery for Renal Stones
Several studies evaluated the benefit of a short-term external ureteral catheter (UC) compared to double-J (DJ) ureteral stent after flexible ureteroscopy (URS); the results were controversial. These studies had combined analyses of ureteral and renal stones with a high risk of selection bias. Studies comparing external UC and DJ stent after flexible URS for isolated renal stones are lacking. In the present study, the investigators will compare the outcomes of using a one-day external UC versus a DJ internal ureteral stent for ureteral drainage after retrograde flexible URS (retrograde intrarenal surgery "RIRS") for renal stones. The investigators aim to identify the best ureteral drainage method after RIRS regarding stone clearance, complications, and stent-related symptoms.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-24
NCT04829461
Effectiveness of Ambu® aScope™ 4 Cysto With the aView™ 2 Advance for Flexible Cystoscopy
The purpose of this study is to evaluate the use of the single-use Ambu® aScope™ 4 Cysto for removal of ureteral stents as compared to routine flexible reusable cystoscopes.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-05
3 states