New study reveals best technique for kidney stone removal
NCT ID NCT07289230
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study tested three different methods for removing kidney stones up to 2 centimeters in size. All methods use a flexible scope through the urinary tract, but one uses a traditional tube, another uses a tube with suction, and the third uses no tube at all. Researchers measured how well each method cleared stones, how long surgery took, and any complications. The goal is to find the safest and most effective approach for patients.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could help doctors choose the best surgical technique for removing small kidney stones, leading to fewer complications and better stone clearance.
- What could go wrong
- This is a completed study with 90 participants, so results are final. However, findings may not apply to larger stones or patients with other health issues.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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90 people
The number who actually took part.
- Started
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Dec 2024
- Finished
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Aug 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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18 years and older
- 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: * Adult patients aged 18 years or older. * Symptomatic unilateral single renal stone with a maximal diameter from 1 centimeter to 2 centimeters. * Normal kidney function based on routine laboratory tests. * Patients willing and able to provide written informed consent to participate in the clinical study. Exclusion Criteria: * Patients with active urinary tract infection (UTI) until appropriate treatment is completed and infection is cleared. * Patients with anatomical abnormalities of the urinary tract (for example, congenital or acquired structural abnormalities). * Pregnant patients. * Patients who are medically unfit for general anesthesia. * Patients with multiple renal stones in the same kidney or bilateral renal stones.
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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 - Department of Urology
Cairo, Cairo Governorate, 11511, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a thinner scope make kidney stone surgery easier and cheaper?