A side-by-side vs stent-in-stent method in multiple metallic stent placement for unresectable hilar biliary obstruction: A prospective multicenter randomized controlled trial

A side-by-side vs stent-in-stent method in multiple metallic stent placement for unresectable hilar biliary obstruction: A prospective multicenter randomized controlled trial - A side-by-side vs stent-in-stent method

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000011699

Enrollment

Registered

2013-09-10

Start date

2013-09-10

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 hilar biliary obstruction

Interventions

Side-by-side method Stent-in-stent method

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1, Unresectable malignant hilar biliary obstruction with Bismuth classification II or higher advanced 2, Age>20years 3, Expected survival >30days 4, Informed consent was obtained

Exclusion criteria

Exclusion criteria: 1, Post-gastrectomy 2, Inpossible to reach the papila. 3, Post hepatectomy 4, Post PTBD 5, Highly advanced biliary stricture 6, Severe acute cholangitis 7, Pregnant 8, Not included

Design outcomes

Primary

Measure	Time frame
Stent patency	—

Secondary

Measure	Time frame
Technical success rate Complication rate	—

Countries

Japan

Contacts

Public ContactMidori Nishikawa

Hokkaido University Hospital Institutional Review Board

crjimu@huhp.hokudai.ac.jp011-706-7636

Outcome results

None listed

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