New study finds best method to zap kidney stones in kids
NCT ID NCT07345234
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 180 children aged 6-12 with hard kidney stones (1-2 cm). It compared two procedures: mini-PCNL (a small back incision) and flexible ureteroscopy (a tube through the urinary tract). The goal was to see which method removes stones more completely and safely. Results help doctors choose the best treatment for children.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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180 people
The number who actually took part.
- Started
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Jan 2025
- Finished
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Jun 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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6 to 12 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 6 to 12 years * Single lower calyceal renal stone measuring 1-2 centimeters (≤20 millimeters) with stone density greater than 1000 Hounsfield units * No previous urological surgery that could distort the pelvicalyceal system Exclusion Criteria: * Additional ureteral stones and/or congenital renal anomalies (for example, horseshoe kidney or pelviureteric junction obstruction) * Multiple renal stones * Untreated urinary tract infection (temporarily excluded until treated)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Ain Shams University Hospitals (Urology Department)
Cairo, Cairo Governorate, 11511, Egypt
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Other studies related to the condition(s) this trial covers.
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