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Impact of Surgical Position on Stone-Free Rates in Retrograde Intrarenal Surgery

Study acronym: POS-RIRS-RCT
StatusRecruiting
PhaseNot applicable
Started
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Record status
This record was last updated August 15, 2025 (before its estimated December 1, 2025 completion). Its status may not reflect the trial's current state.

Record History

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  1. Primary completion date: Jun 1, 2025 to Dec 1, 2025
    • Study completion date: Sep 1, 2025 to Jun 1, 2026
    v3
  2. Study title shortened, about 3 wordsv2
  3. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
The goal of this clinical trial is to determine whether the surgical position during retrograde intrarenal surgery (RIRS) affects stone-free rates in adults with kidney stones. The main questions it aims to answer are: * Does the modified lithotomy position result in a higher stone-free rate compared to the standard lithotomy position? * Are there differences in complication rates between the two surgical positions? Researchers will compare patients undergoing RIRS in the standard lithotomy position to those in the modified lithotomy position (30-degree Trendelenburg with elevated surgical side) to assess its impact on stone clearance and surgical outcomes. Participants will: * Be randomly assigned to one of two surgical positions * Undergo RIRS with standard surgical procedures * Have follow-up imaging to assess stone clearance after surgery This study aims to improve surgical techniques and patient outcomes in kidney stone treatment.
Trial Details
NCT Number NCT06809582
Lead Sponsor Ondokuz Mayıs University
Conditions
(from sponsor)		 Stone, Kidney, Stones, Kidney, Stone;Renal
Related terms Kidney Calculi, Nephrolithiasis
Enrollment 128 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov