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New study tests suction tools to make kidney stone surgery safer

NCT ID NCT07516535

Disease control Sponsor: Ain Shams 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two suction-assisted techniques used during minimally invasive kidney stone surgery. The goal is to see which method better clears stones and lowers the risk of infection. About 126 adults with medium-sized kidney stones (2-3 cm) will be randomly assigned to one of the two techniques. The results could help surgeons choose the best approach for future patients.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Suction-assisted surgical techniques (Direct In-Scope Suction and Flexible and Navigable Suction Ureteric Access Sheath)
What this could lead to
If successful, this could show which suction method is safer and more effective for removing medium-sized kidney stones, potentially reducing infections and the need for repeat procedures.
What could go wrong
This is a small, early-stage trial with only 126 participants, so results may not apply to everyone. Both techniques are still being tested, and there is no guarantee one will be clearly better.

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

About 126 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Apr 2027

An estimate. End dates often move.

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 to 60 years

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: * Adults aged 18 to 60 years * Radiologically confirmed renal stones measuring 2 to 3 centimeters * Eligible for retrograde intrarenal surgery * Normal renal function as evidenced by normal serum creatinine * Able and willing to provide written informed consent Exclusion Criteria: * Pregnancy or lactation * Active urinary tract infection at the time of enrollment * Bleeding disorders or coagulopathies that contraindicate surgical intervention * Anatomical malformations affecting the urinary tract * Solitary kidney * Inability or unwillingness to provide informed consent

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Conditions

The condition(s) this trial relates to.

Kidney Calculi nephrolithiasis

As listed by the trial registrant

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

Kidney stones Nephrolithiasis Renal calculi

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Ain Shams University Hospitals

    Cairo, 11511, Egypt

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