Which stent is best for unblocking bile ducts in cancer patients?

NCT ID NCT07559968

Disease control Sponsor: Chung-Ang University Hospital Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jul 14, 2026 · Updated 2 times

Summary

This study looks at two types of metal stents (partially covered vs. bare) used to open blocked bile ducts in people with incurable cancer. The goal is to see which stent keeps the duct open longer and causes fewer problems. Sixty adults who already have a drainage tube will be randomly assigned to one stent type and followed for a year.

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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 60 people

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

Started

May 2026

Expected to finish

Dec 2029

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

19 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 who voluntarily provide written informed consent after receiving sufficient explanation of the study purpose, methods, and potential benefits and risks * Adults aged 19 years or older * Patients diagnosed with unresectable malignant distal biliary obstruction based on imaging studies (CT, MRI, ERCP, etc.) or histologic confirmation * Patients who have already undergone percutaneous transhepatic biliary drainage (PTBD) according to the institutional clinical protocol and are scheduled for metallic stent placement through the existing PTBD tract Exclusion Criteria: * Patients with a previous history of biliary metallic stent placement * Patients with upper biliary obstruction (hilar level or above) * Patients with other major biliary lesions in addition to malignant distal biliary obstruction * Patients for whom the investigator judges that study conduct or data collection would be markedly difficult

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Conditions

The condition(s) this trial relates to.

biliary tract cancer cholestasis distal biliary tract carcinoma

As listed by the trial registrant

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

Biliary obstruction Malignant biliary obstruction Malignant distal biliary obstruction

How to take part

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

The places running it

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

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

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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.

Which stent is best for unblocking bile ducts in cancer patients?

What the study statuses mean