NCT07360353

Comparison Between Different Types of Flexible Ureteroscopes

A Comparative Study of Performance and Cost-effectiveness of Three Different Single-Use Flexible Ureteroscopes in the Management of Renal Stones: A Randomized Clinical Trial

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 180 (estimated)
• Sponsor: Ain Shams University · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

The current study aims to compare the performance of three distinct single-use digital flexible ureteroscope types in terms of cost-effectiveness, postoperative complications, operating time, and stone-free rates (SFRs).

Detailed description

Retrograde intrarenal surgery (RIRS) is the preferred treatment modality for renal stones measuring less than 20 millimeters (mm). Several types of flexible ureteroscopes are currently available on the market from different manufacturers. However, there is a shortage of comparative studies evaluating the performance of different single-use flexible ureteroscopes. This study aims to compare the performance of three different single-use digital flexible ureteroscopes in terms of cost-effectiveness, postoperative complications, operative time, and stone-free rates (SFRs).

Conditions

• Renal Calculi
• Nephrolithiasis

Interventions

Type	Name	Description
DEVICE	LithoVue™ (Boston Scientific Corporation)	Participants randomized to this arm will undergo retrograde intrarenal surgery (RIRS) for renal stone management using the LithoVue™ single-use digital flexible ureteroscope.
DEVICE	WiScope® (OTU Medical Inc. (Silicon Valley, USA))	Participants randomized to this arm will undergo retrograde intrarenal surgery (RIRS) for renal stone management using the WiScope single-use digital flexible ureteroscope.
DEVICE	Single-Use Ureterorenoscope (Scivita Medical Technology Co., Ltd.)	Participants randomized to this arm will undergo retrograde intrarenal surgery (RIRS) for renal stone management using the single-use digital flexible ureterorenoscope manufactured by Scivita Medical Technology Co., Ltd.

Timeline

• Start date: 2026-01-25
• Primary completion: 2026-08-01
• Completion: 2026-09-01
• First posted: 2026-01-22
• Last updated: 2026-01-27

Locations

1 site across 1 country: Egypt