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Can a tiny ultrasound probe stop bile duct stones from coming back?

NCT ID NCT06265311

Knowledge-focused Sponsor: Shanghai Municipal Hospital of Traditional Chinese Medicine 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 whether using a special ultrasound probe (IDUS) during a procedure to remove bile duct stones can help predict if stones will come back. 248 adults at high risk for recurrence were randomly assigned to get IDUS or not. Researchers tracked stone return, need for drainage tubes, and other outcomes for 48 weeks.

What this could mean

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

Active substance
IDUS (intraductal ultrasound) examination
What this could lead to
If IDUS proves useful, it could help doctors decide who needs extra monitoring or procedures to prevent stone recurrence.
What could go wrong
This is a completed observational study, not a treatment trial. The results may not change practice if the test doesn't clearly reduce recurrence rates.

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

248 people

The number who actually took part.

Started

Nov 2021

Finished

Apr 2026

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 80 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: * 1.Clinical diagnosis of common bile duct stones 2.At least one of the following, diameter of CBD\>1.5cm, or number of calculi\>2, or lithotripsy during ercp Exclusion Criteria: * 1\. Clinical diagnosis of liver or biliary malignant tumor. 2. Clinical diagnosis of duodenal malignant tumor 3. Failure or unexpected termination of ERCP 4. Surgery history of gallbladder or bile duct.

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Conditions

The condition(s) this trial relates to.

choledocholithiasis

As listed by the trial registrant

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

Cholangiopancreatography, endoscopic retrograde Choledocholithiasis Ultrasonography

Contacts and locations

Locations

  • Shang General Hospital

    Shanghai, 200080, China

More trials for these conditions

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