Formalize and improve the accuracy of preoperative biliary cytology in cholangiocarcinoma

Formalize and improve the accuracy of preoperative biliary cytology in cholangiocarcinoma - Formalize and improve the accuracy of bile cytology

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000005983

Enrollment

100

Registered

2011-07-15

Start date

2011-07-01

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

Cholangiocarcinoma

Interventions

Divided into group A and group B patients with bile cytology performed preoperatively. In group A, performed daily for 10 days once daily bile cytology. Divided into group A and group B patients with

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Getting a diagnosis of bile duct cancer, reducing drainage tube for jaundice (PTBD or ENBD) insertion in patients.

Exclusion criteria

Exclusion criteria: Patient consent is not obtained from the patient or family. Patients were deemed unsuitable to participate in the trial division of the study physician or the physician responsible for examination.

Design outcomes

Primary

Measure	Time frame
10 times to collect bile cytology. How the collection of group A (once daily for 10 days) and group B (five times a day for two days) is evaluated separately. Including assessing prevalence	—

Secondary

Measure	Time frame
Protein in bile, specifically those with elevated molecular markers to analyze and discuss whether there is a high accuracy over cytology	—

Countries

Japan

Contacts

Public ContactYukihiro Yokoyama

Nagoya University Graduate School of Medicine Department of Surgical Oncology

052-744-2222

Outcome results

None listed

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