Cholangioscopy- versus fluoroscopy-guided technique of transpapillary mapping biopsy for preoperative evaluation of extrahepatic cholangiocarcinoma: a prospective crossover study

Cholangioscopy- versus fluoroscopy-guided technique of transpapillary mapping biopsy for preoperative evaluation of extrahepatic cholangiocarcinoma: a prospective crossover study - Cholangioscopy- versus fluoroscopy-guided technique of transpapillary mapping biopsy for preoperative evaluation of extrahepatic cholangiocarcinoma: a a prospective crossover study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000026242

Enrollment

Registered

2017-02-21

Start date

2016-08-26

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 cholangiocarcinoma

Interventions

Transpapillary mapping biopsy under fluoroscopic guidance. Transpapillary mapping biopsy under cholangioscopic guidance.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: suspected extrahepatic cholangiocarcinoma based on the finding of multi-detector row computed tomography; possibly resectable lesion; obtaining written informed consent about participating study

Exclusion criteria

Exclusion criteria: impossible transpapirally approach;poor general condition (performance status 3 or 4); definite inoperable factors such as distal metastases and peritoneal dissemination detected by MDCT; refusal of surgical treatment; age under 18 years old; pregnancy

Design outcomes

Primary

Measure	Time frame
the success rate of mapping biopsy	—

Secondary

Measure	Time frame
the rate of specimens insufficient for histological examination	—

Countries

Japan

Contacts

Public ContactTakahisa Ogawa

Sendai City Medical Center Department of Gastroenterology

t-ogawa@openhp.or.jp022-252-1111

Outcome results

None listed

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