An interventional study of Flexible Ureteroscopy in Renal Stone, sponsored by Chinese University of Hong Kong. Recruiting at 1 site in Hong Kong. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-06.
Sponsored by Chinese University of Hong Kong · Not applicable, Interventional, and Treatment
This is a prospective randomized clinical trial which aims to compare the clinical outcomes of robotic flexible ureteroscopy and standard flexible ureteroscopy for the treatment of renal stones.
This is a prospective randomized controlled trial comparing robotic flexible ureteroscopy and standard flexible ureteroscopy for patients with treatment of renal stones. All consecutive patients who are scheduled for flexible ureteroscopy for treatment of renal stones would be screened for study eligibility. Patients are randomised to receive either robotic or standard flexible ureteroscopy with an allocation ratio of 1:1. by computer generated random block. The urologist performing the surgery could not be blinded due to the nature of the intervention. Patients receiving the treatment and investigators assessing for any disease recurrence are blinded from the allocated treatment arm.
598 studies on the registry are indexed under Kidney Calculi; 163 are open to participants now.
This study's planned enrollment of 30 is below the median of 90 across 461 interventional studies indexed under Kidney Calculi.
Browse Kidney Calculi studies →Chinese University of Hong Kong is the lead sponsor of 1,419 studies on the registry; 487 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Robotic ILY® is a flexible ureteroscopy holder with multiple degrees of freedom telemanipulated with a wireless controller. This allows the surgeon to work easily at a distance from the patient and prevents them from exposing to the source of ionizing radiation.
Procedure: Flexible Ureteroscopy
Standard flexible ureterscopy
Procedure: Flexible Ureteroscopy
Ureteroscopic lithotripsy
Stone-free rate at 1 month
Stone-free rate at 1 month is defined by non contrast computer tomography (NCCT) performed within 24 hours of surgery without residual stone fragments or residual stone fragments \<2mm
Time frame: Month 1
Stone-free rate at 3 month
If not stone free at 1 month, stone-free rate at 3 month is defined by non contrast computer tomography (NCCT) performed within 24 hours of surgery without residual stone fragments or residual stone fragments \<2mm
Time frame: Month 3
Operative time
the time from insertion of an endoscope into the urethra to the completion of stent placement
Time frame: During operation
Lasing Time
The total lasing time in minutes during operation
Time frame: During operation
Total laser energy used
Total laser energy used during operation
Time frame: During operation
Total radiation dose
Total radiation dose during operation
Time frame: During operation
Total radiation time
total radiation time in minutes during operation
Time frame: during operation
Length of hospital stay
defined from the day of surgery to the day of discharge, counted in days.
Time frame: On Discharge
Postoperative pain
By visual analogue scores from 0-10, the highest score the more pain.
Time frame: Baseline, Week 1 and Week 12
Surgeon radiation exposure
By radiation dosimeter
Time frame: During operation
Plan to share: No
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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Chinese University of Hong Kong