New suction device may improve kidney stone removal
NCT ID NCT07286071
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested two different tools used during surgery to remove kidney stones up to 20 mm. One is a traditional tube that lets fluid and stone pieces flow out, and the other is a newer tube that uses suction to actively pull out stone fragments. The goal was to see which tool clears stones better and causes fewer problems like infection or injury. 140 adults with a single kidney stone took part, and their results were compared after surgery.
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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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140 people
The number who actually took part.
- Started
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Jun 2025
- Finished
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Dec 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: * Adults aged eighteen years or older * Male or female participants * Presence of a single kidney stone measuring up to twenty millimeters * Candidate for retrograde intrarenal surgery according to clinical evaluation * Able and willing to provide informed consent Exclusion Criteria: * Active or untreated urinary infection * History of open kidney surgery or kidney trauma * Contraindications to anesthesia, including uncontrolled diabetes, severe cardiac disease, or significant coagulation disorders * Presence of ureteral narrowing or obstruction at the junction between the ureter and the kidney * Positive urine culture that does not resolve after appropriate treatment
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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
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Other studies related to the condition(s) this trial covers.
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