Clinical trial Recruiting at 1 site Interventional Ages 1 Year to 18

Retrograde Intrarenal Surgery in Children with Kidney Stones

Official title: Retrograde Intrarenal Surgery Versus Mini Percutaneous Nephrolithotomy In Management Of Pediatric Renal Stone Less Than 2 Cm: A Prospective Randomized Study

Run by South Valley University · NCT07700251 · Data updated 2026-11-12

A procedure called retrograde intrarenal surgery (RIRS) is being tested in kids with kidney stones to see if it can clear stones effectively while keeping recovery smooth and safe.

Quick facts

Study typeInterventional
Ages1 Year to 18 Years
SexAll
Enrollment60 (estimated)
SponsorSouth Valley University
Academic / other
Locations1 site (Qina, South Valley)
StatusRecruiting
StartedAugust 1, 2025
Main results expectedAugust 1, 2026
Study endsAugust 10, 2026
Registry record updatedJuly 14, 2026
Trial IDNCT07700251 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 1–18 with renal stones up to 2 cm located in the renal pelvis or calyces and normal kidney function, with no prior intervention for the current stone episode.

Probably not a fit

Patients with anatomical urinary tract abnormalities, bleeding disorders, active infections, or anesthesia contraindications may not benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study compares a minimally invasive kidney stone procedure, RIRS, in pediatric patients with stones up to 2 cm. The goal is to achieve complete stone clearance with low complication risk, balancing effectiveness and safety. Eligible children are 1–18 years old with a single or multiple stones in the kidney pelvis or calyces and normal kidney function. Exclusions include urinary tract anomalies, bleeding disorders, active infections, or anesthesia contraindications. The trial is conducted at South Valley University Hospital and is sponsored by South Valley University.

Why it matters

Potential benefit: If successful, children could experience effective stone removal with fewer complications and quicker return to normal activities.

How similar studies have gone: Previous studies in adults and children have shown that minimally invasive RIRS can achieve stone clearance with favorable safety, though results can vary by stone size and location.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children aged 1 to 18 years .
* Presence of a renal stone ≤2 cm in maximum diameter (single or multiple).
* Stone located in the renal pelvis and/or calyces.
* Normal renal function (based on age-adjusted serum creatinine and/or eGFR).
* No prior surgical intervention for the current stone episode.

Exclusion Criteria:

* Anatomical abnormalities of the urinary tract (e.g., ureteropelvic junction obstruction, horseshoe kidney).
* Bleeding disorders or uncorrected coagulopathy.
* Active urinary tract infection at the time of surgery.
* Patients with contraindications to general anesthesia.

Where it's running

  • South Valley University Hospital
    Qina, South Valley, Egypt
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.