Prospective evaluation study of diagnostic yield for biliary disease using modified tetra-bite-on-bite biopsy

Prospective evaluation study of diagnostic yield for biliary disease using modified tetra-bite-on-bite biopsy - Prospective evaluation study of diagnostic yield for biliary disease using modified tetra-bite-on-bite biopsy

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059760

Enrollment

Registered

2025-12-01

Start date

2025-12-01

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Biliary disease

Interventions

Biopsy using modified tetra-bite-on-bite technique Historical control

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Complicating biliary disease 2. age from 18 to 99 3. Obtaining informed consent

Exclusion criteria

Exclusion criteria: 1. Bleeding tendency, pregnancy 2. Surgical altered anatomy excluding Bil-1

Design outcomes

Primary

Measure	Time frame
Diagnostic accuracy of modified tetra-bite-on-bite technique	—

Countries

Japan

Contacts

Public ContactTakeshi Ogura

Osaka Medical and Pharmaceutical University Endoscopy Center

oguratakeshi0411@yahoo.co.jp072-683-1221

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026