Status:

RECRUITING

Alpha-Blockers Prior to Ureteral Access Sheath Placement in Flexible Ureteroscopy: A Randomized Prospective Study

Lead Sponsor:

Pedro de Figueiredo Buchalla

Conditions:

Nephrolithiasis

Alpha Blocker

Eligibility:

All Genders

18+ years

Phase:

PHASE4

Brief Summary

This study aims to evaluate whether the use of alpha-blockers before flexible ureterorenolithotripsy facilitates the passage of the ureteral access sheath. The trial will enroll adult patients diagnos...

Eligibility Criteria

Inclusion Criteria:

  • Age ≥ 18 years
  • Diagnosis of nephrolithiasis with surgical indication for flexible ureterorenolithotripsy
  • Ability to provide written informed consent

Exclusion Criteria:

  • Age < 18 years
  • Pregnancy
  • History of ureteral stricture, prior ureteral reconstructive surgery, and/or abdominal or pelvic radiotherapy
  • Prior ureteroscopy or ipsilateral double-J stent placement within the past 3 months
  • Chronic use of alpha-blockers for benign prostatic hyperplasia or medical expulsive therapy for ureteral stones

Key Trial Info

Start Date :

January 1 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

February 1 2026

Estimated Enrollment :

140 Patients enrolled

Trial Details

Trial ID

NCT07124299

Start Date

January 1 2024

End Date

February 1 2026

Last Update

August 15 2025

Active Locations (1)

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1

Centro Universitário FMABC

Santo André, São Paulo, Brazil, 09060-870