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New skinny scope aims to cut costs for kidney stone patients
NCT ID NCT07296835
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares a new, thinner flexible scope (HugeMed 6.3 French) to standard scopes for removing kidney stones up to 2.5 cm. Researchers want to see if the new scope saves money while still clearing stones just as well. About 75 adults with kidney or ureter stones will take part.
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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About 75 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2028
An estimate. End dates often move.
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Males or females ≥ 18 years of age * Patients with ureteral or kidney stones undergoing primary flexible ureteroscopy for retrograde intrarenal surgery * Total stone burden ≤ 2.5 cm Exclusion Criteria: * Undergoing bilateral stone treatment during the same procedure * Patients with known genitourinary anatomical abnormalities that would complicate the procedure as determined by the treating investigator * Uncorrected coagulopathy * Patients with urinary diversions * Chronic external urinary catheters * Women who are pregnant * Immunosuppressed patients * Non-elective procedures * Participants must not be involved in any other clinical research studies during the duration of this trial. Exceptions may be made if the investigator determines, on a case-by-case basis, that participation in another study will not adversely affect the outcomes or integrity of this trial
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University Of Kansas Medical Center
RECRUITINGKansas City, Kansas, 66160-8500, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New surgical tool aims to suck away kidney stones faster and safer
- Can changing how patients breathe make kidney stone surgery safer?
- Can a smaller incision for kidney stone surgery reduce recovery without sacrificing results?
- Laser showdown: which beam blasts kidney stones best?
- Holding breath during kidney stone surgery may speed up treatment