Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial

Completed · Not applicable

Conditions studied: Kidney Calculi

In brief

The rationale for this study is to determine if there is a difference in complications among patients undergoing ureteroscopy for renal stones who receive a stent compared to not receiving a stent postoperatively.

Key facts

Study ID

NCT03855787

Run by

Vanderbilt University Medical Center

People needed

103

Starts

2019-11-11

Expected to finish

2026-03-31

Last updated by the study team

2026-05-29

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• nonobstructing renal stone 1.5cm total stone diameter (if multiple stones, then sum of maximum diameters) or less undergoing ureteroscopy

You may not qualify if…

• age < 18 years
• pregnancy status
• ureteral stone
• preoperative hydronephrosis
• indwelling nephrostomy tube
• planning bilateral ureteroscopy or subsequent staged ureteroscopy
• solitary kidney or eGFR <60 mL/min (CKD stage 3 or greater)
• variant anatomy including horseshoe kidney, pelvic kidney, prior urinary tract reconstruction

Where it is running

• University of California Los Angeles — Los Angeles, California, United States
• University of California Davis — Sacramento, California, United States
• University of California San Diego — San Diego, California, United States
• Indiana University Health Physicians Urology — Indianapolis, Indiana, United States
• Brigham and Women's Hospital — Boston, Massachusetts, United States
• Vanderbilt University Medical Center — Nashville, Tennessee, United States
• University of Montreal — Montreal, Canada

Full record on ClinicalTrials.gov

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