A prospective study of re-intervention with 12mm diameter biliary metallic stent for recurrent biliary obstruction

A prospective study of re-intervention with 12mm diameter biliary metallic stent for recurrent biliary obstruction - Revision study with 12mm covered self expandable metallic stent

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034043

Enrollment

Registered

2018-09-10

Start date

2018-09-10

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

unresectable malignant distal biliary obstruction

Interventions

12mm full-covered type self expandable metallic stent

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Unresectable malignant distal biliary obstruction 2. Prior biliary drainage with full-covered self expandable metallic stent whose diameter is less than 10mm 3. Complication of recurrent biliary obstruction that requires biliary drainage 4. More than 20 years old 5. Less than Grade 3 of performance status 6. Written informed consent obtained

Exclusion criteria

Exclusion criteria: 1. Failure to extract the indwelling stent 2. Failure of biliary intervention after stent extraction 3. More than type 2 in Bismuth classification 4. Severe comorbilidity 5. Patients considered ineligible by attending physicians

Design outcomes

Primary

Measure	Time frame
Time to recurrent biliary obstruction after re-intervention	—

Secondary

Measure	Time frame
Success rate of stent extraction, technical success rate, clinical success rate, associated factors with recurrent biliary obstruction after re-intervention	—

Countries

Japan

Contacts

Public ContactKazunari Tanaka

Teine-Keijinkai Hospital Center for Gastroentelogy

kazunari0511@gmail.com011-681-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026