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New combo therapy may simplify kidney stone removal

NCT ID NCT07623876

Symptom relief Sponsor: Beni-Suef University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests if taking tamsulosin before surgery or using aminophylline during surgery helps doctors place a tube needed for kidney stone removal. About 322 adults with small kidney stones will be randomly assigned to receive one or both medications or placebos. The goal is to see if these drugs make the procedure easier and reduce the need for extra steps.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 322 people

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

Started

May 2026

Expected to finish

May 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 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: * Age 18 years or older. * Unilateral renal stone 2 cm or less in maximal diameter on preoperative imaging. * Scheduled for primary retrograde intrarenal surgery. * Ability to provide written informed consent. Exclusion Criteria: * Prior ureteral stenting on the study side. * Bilateral same-session retrograde intrarenal surgery. * Concomitant ureteral stone requiring primary semirigid ureteroscopy as the main procedure. * Known ureteral stricture or prior ureteral reconstructive surgery on the study side. * Active urinary tract infection or untreated positive urine culture. * Pregnancy. * Known allergy or contraindication to tamsulosin or aminophylline. * Significant cardiac arrhythmia, uncontrolled ischemic heart disease, seizure disorder, or hyperthyroidism. * Severe hepatic impairment. * Inability to comply with the 7-day preoperative medication protocol.

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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.

Renal stones Retrograde intrarenal surgery Ureteral access sheath placement

How to take part

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

  1. The places running it

    3 sites. 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

  • Department of Urology- Aswan University Hospitals

    RECRUITING

    Aswān, Aswan Governorate, Egypt

  • Department of Urology- Beni-Suef University Hospitals

    RECRUITING

    Banī Suwayf, Beni Suweif Governorate, Egypt

  • Urology Department- Sohag university Hospital

    RECRUITING

    Sohag, Sohag Governorate, Egypt

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