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Norwegian study aims to settle best method for bile duct stone removal

NCT ID NCT07449897

Knowledge-focused Sponsor: Oslo University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study observes 340 patients in Norway who need gallbladder surgery and also have bile duct stones. Doctors will use one of two methods to remove the stones during surgery: a laparoscopic technique through the bile duct or an endoscopic procedure. The goal is to see which method works better, has fewer complications, and is more cost-effective.

What this could mean

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

What this could lead to
If successful, this study could help doctors choose the best method for removing bile duct stones during gallbladder surgery, improving outcomes and reducing costs.
What could go wrong
This is an observational study, not a controlled trial, so results may be influenced by patient selection. It only includes 340 patients in Norway, so findings may not apply everywhere.

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.

Participants

About 340 people

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

Started

Feb 2026

Expected to finish

Dec 2036

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.

Who is studied

Eligible patients will be identified during routine clinical evaluation by the treating surgical team. Either in the outpatient clinic or in the ward for emergency admitted patients.

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 over 18 years * Preoperatively image proven choledocholithiasis or bile duct sludge (US / CT / MRI) * ≤ 8 mm size * ≤ 5 stones * Not proximal bile duct stones * Planned cholecystectomy with intraoperative bile duct clearance (LCBDE or intraoperative ERCP) Exclusion criteria: * Previous cholecystectomy * Medically unfit for surgery (frailty, comorbidity) * Technically inoperable (hostile abdomen, inflammatory processes, bleeding conditions, cirrhosis) * Pregnancy

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Conditions

The condition(s) this trial relates to.

cholecystolithiasis choledocholithiasis

As listed by the trial registrant

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

Bile duct stones

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

  • Oslo University Hospital

    RECRUITING

    Oslo, Norway

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