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Battle of the scopes: which stone removal method wins?

NCT ID NCT07362784

Symptom relief 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 100 adults with large upper ureteric stones (over 10 mm) to compare two surgical techniques: one going down from the kidney (antegrade) and one going up from the bladder (retrograde). The goal was to see which method removes stones more completely and safely, and which leads to a shorter hospital stay. Both approaches are already used, but this study directly compares them to help doctors choose the best option.

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

100 people

The number who actually took part.

Started

Mar 2022

Finished

Sep 2025

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 with upper urteric stone larger than 10 mm in maximum diameter from the level of pelviureteric junction to upper border of sacroiliac junction and aged ≥18 years Exclusion Criteria: * unresolved urinary tract infection, uncorrected coagulopathy, pregnancy, anatomical abnormalities of the urinary system as horse shoe kidney, pelvic ectopic kidney and ureteric strictures, severe orthopedic malformation hindering prone position or antegrade ureteric access as kyphosis and scoliosis, Pediatric age groups \< 18 years, ureteric Stent in place, concurrent renal stones, bladder cancer, upper urothelial tumors or renal tumors

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Conditions

The condition(s) this trial relates to.

ureterolithiasis

As listed by the trial registrant

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

Upper ureteric stones

Contacts and locations

Locations

  • Ain Shams University hospitals

    Cairo, Cairo Governorate, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.