Multicenter retrospective study comparing clinical outcomes of endoscopic ultrasound and balloon endoscopy for malignant biliary obstruction in patients with surgically altered anatomy

Multicenter retrospective study comparing clinical outcomes of endoscopic ultrasound and balloon endoscopy for malignant biliary obstruction in patients with surgically altered anatomy - Multicenter retrospective study comparing clinical outcomes of endoscopic ultrasound and balloon endoscopy for malignant biliary obstruction in patients with surgically altered anatomy

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058019

Enrollment

300

Registered

2025-06-01

Start date

2025-06-01

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

Malignant biliary obstruction

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with surgically-altered anatomy who underwent endoscopic ultrasound guided biliary drainage or balloon endoscopy assisted ERCP for malignant biliary obstruction.

Exclusion criteria

Exclusion criteria: 1) patients with benign biliary stricture 2) patients with Billroth-I reconstruction

Design outcomes

Primary

Measure	Time frame
Technical success rate	—

Secondary

Measure	Time frame
Clinical success rate, early adverse event	—

Countries

Japan

Contacts

Public ContactRyunosuke Hakuta

Tokyo Women's Medical University Department of Internal Medicine, Institute of Gastroenterology

hakuta-tky@umin.ac.jp03-3353-8111

Outcome results