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 type | Interventional |
|---|---|
| Ages | 1 Year to 18 Years |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | South Valley University Academic / other |
| Locations | 1 site (Qina, South Valley) |
| Status | Recruiting |
| Started | August 1, 2025 |
| Main results expected | August 1, 2026 |
| Study ends | August 10, 2026 |
| Registry record updated | July 14, 2026 |
| Trial ID | NCT07700251 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
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South Valley University Hospital
Qina, South Valley, Egypt Recruiting
Study contacts
- Study coordinator: Mostafa Mahmoud Rashed Ali, M.D
- Email: Mostafarashed2222@gmail.com
- Phone: +20111049435
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Direct in-scope suction during flexible ureterorenoscopy for kidney and proximal ureter stones
This study tests whether using direct in-scope suction during flexible ureterorenoscopy helps reduce infections and improve outcomes for adults with kidney or proximal ureter stones.
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Long-term safety of UAS-assisted vs sheathless RIRS in adults with kidney stones
This study tests whether using a ureteral access sheath during the initial RIRS affects long-term safety and outcomes in adults with kidney stones ≤20 mm.
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Supervised robotic kidney stone removal with flexible ureteroscopy
This study will test a new robotic system that lets surgeons remotely and semi-autonomously remove kidney stones during flexible ureteroscopy in adults with stones up to 2 cm.
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Observational study on outcomes of ECIRS for kidney stones in Asia
This study is looking at how well a specific kidney stone surgery called ECIRS works for patients in Asia by collecting information before and after their treatment.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.