Research on bile duct biopsy for biliary tract diseases

Research on bile duct biopsy for biliary tract diseases - Research on bile duct biopsy for biliary tract diseases

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000044509

Enrollment

Registered

2021-07-01

Start date

2021-07-01

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

Extrahepatic bile duct cancer

Interventions

Bile duct biopsy using an endoscopic introducer Bile duct biopsy without an endoscopic introducer

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who are suspected of having bile duct stenosis by imaging diagnosis such as CT or MRI and require ERCP. Patients who have given written consent to participate in this study.

Exclusion criteria

Exclusion criteria: Patients with poorly controlled infections. Patients with severe drug allergy. Pregnant or potentially pregnant and lactating women. Patients with severe mental disorders. Cases that the principal investigator or sub-investigator deems inappropriate for the safe conduct of this study.

Design outcomes

Primary

Measure	Time frame
Success rate of Mapping Biopsy using endoscopic introducer (success rate of biopsy of targeted bile duct branch against expected operation)	—

Countries

Japan

Contacts

Public ContactKenta Yamada

Nagoya University Hospital Department of Endoscopy

kentaymd@med.nagoya-u.ac.jp0527442602

Outcome results

None listed

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