Prospective exploratory study of efficacy of cell block method with bile cytology using a novel wire-guided brush

Prospective exploratory study of efficacy of cell block method with bile cytology using a novel wire-guided brush - Efficacy of cell block method with bile cytology using a novel brush

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000042138

Enrollment

Registered

2020-11-01

Start date

2020-11-20

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

biliary stricture

Interventions

procedure of the cell block method with bile cytology using a novel wire-guided brush

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. patients with biliary stricture 2. providing written informed consent, and age =or >20

Exclusion criteria

Exclusion criteria: 1. severe mental disorders 2. patients whose participation in the trial was judged to be inappropriate by the investigator

Design outcomes

Primary

Measure	Time frame
Accuracy of cell block method with bile cytology using a novel wire-guided brush	—

Secondary

Measure	Time frame
Adequacy of specimens Accuracy of bile duct biopsy Accuracy of bile cytology without cell block method Complications	—

Countries

Japan

Contacts

Public ContactMasayoshi Tadehara

Kitasato University school of medicine Department of Gastroenterology

tadehara@kitasato-u.ac.jp+81-42-778-8111

Outcome results

None listed

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