Using Silodosin to Improve Ureteral Access for Kidney Stone Surgery

Effect of Preoperative Silodosin on Feasibility of Ureteral Access Sheath Insertion for Flexible Ureteroscope in Treating Renal Stones; A Prospective, Multicentre, Randomized Trial

Not applicable Interventional Al-Azhar University · NCT05833386

This study is testing if a medication called silodosin can make it easier and safer for patients with kidney stones to have surgery by reducing muscle spasms in the ureters.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment2000 (estimated)
Ages18 Years and up
SexAll
SponsorAl-Azhar University Academic / other
Locations1 site (Cairo)
Trial IDNCT05833386 on ClinicalTrials.gov

What this trial studies

This study investigates the effect of preoperative silodosin, an α1A adrenoceptor antagonist, on the feasibility of inserting a ureteral access sheath during flexible ureteroscopy for patients with renal stones. The aim is to determine if silodosin can reduce ureteral spasms and intraureteral pressure, thereby facilitating easier and safer access to the ureters. By potentially replacing the need for preoperative stenting, this approach may enhance surgical outcomes and reduce postoperative pain. The study will involve patients scheduled for flexible ureteroscopy who meet the inclusion criteria.

Who should consider this trial

Good fit: Ideal candidates are adults with renal stones who are scheduled for flexible ureteroscopy and require ureteral access sheath insertion.

Not a fit: Patients under 18 years of age will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to safer and more effective kidney stone surgeries with reduced postoperative complications.

How similar studies have performed: While the use of α1-blockers in urology is established, this specific application of silodosin for ureteral access sheath insertion is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All patients with renal stones who will undergo flexible ureteroscopy and planned for using ureteral access sheath

Exclusion Criteria:

* Paediatric age group (less than 18 year)

Where this trial is running

Cairo

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Renal Stone
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.