Lying at an angle may speed up kidney stone surgery
NCT ID NCT07601932
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests two different ways of positioning patients during surgery for stones in the upper part of the ureter. One position uses a slight head-down tilt to keep stones from moving back into the kidney, while the other tilts the patient to help clear stones from the kidney. The goal is to see which approach leads to a shorter operation and better stone removal. About 54 adults with kidney 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 54 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Dec 2027
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: * Adults aged 18 years and older. * Diagnosed with kidney stones and scheduled for fURS. * Stone burden \> 1 cm and/or multiple stones will be eligible. * Able and willing to provide informed consent. Exclusion criteria: * Pregnant persons as determined by pre-operative urine pregnancy test (standard of care at the institution) * Untreated UTI * Patients with urinary anomalies (e.g., urinary diversion, ureteral reconstruction, horseshoe kidney) * Single stone \< 1 cm
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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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Mount Sinai West
RECRUITINGNew York, New York, 10019, United States
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