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Kidney stone showdown: location matters in choosing best surgery

NCT ID NCT07589153

Symptom relief Sponsor: Kırıkkale University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compared two surgeries—PCNL and RIRS—for removing kidney stones that are 1-2 cm in size. Researchers wanted to see if the stone's location in the kidney affects which surgery works best. 110 adults took part, and the main goal was to see how many people were stone-free after 3 months.

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

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

110 people

The number who actually took part.

Started

May 2012

Finished

Nov 2013

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Patients aged 18 years or older. Presence of a single, non-staghorn radiopaque renal stone measuring 10-20 mm in diameter. Stone location in the upper, middle, or lower renal calyx. Patients who provided written informed consent. Exclusion Criteria: Patients with untreated urinary tract infections or urosepsis. Patients with uncorrected bleeding disorders or receiving anticoagulant therapy. Presence of severe skeletal deformities preventing surgical positioning. Patients with morbid obesity (BMI \> 40 kg/m²). Presence of anatomical abnormalities (e.g., horseshoe kidney, ectopic kidney). Pregnancy. Multiple renal stones or stones larger than 20 mm

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Conditions

The condition(s) this trial relates to.

nephrolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Kidney calculi nephrolithiasis urolithiasis renal stone