Unique ID issued by UMIN | UMIN000057783 |
---|---|
Receipt number | R000066040 |
Scientific Title | Validation of the anatomical classification in peripheral and proximal type of intrahepatic cholangiocarcinoma |
Date of disclosure of the study information | 2025/05/30 |
Last modified on | 2025/05/06 22:37:49 |
Validation of the anatomical classification in peripheral and proximal type of intrahepatic cholangiocarcinoma; Japan-Korea Collaborative Research
Validation of the anatomical classification in peripheral and proximal type of intrahepatic cholangiocarcinoma
Validation of the anatomical classification in peripheral and proximal type of intrahepatic cholangiocarcinoma
Validation of the anatomical classification in peripheral and proximal type of intrahepatic cholangiocarcinoma
Japan | Asia(except Japan) |
Intrahepatic cholangiocarcinoma
Surgery in general | Hepato-biliary-pancreatic surgery |
Malignancy
NO
The aim of this study is to validate whether the anatomic classification in peripheral and proximal type of intrahepatic cholangiocarcinoma (iCCA) is a useful classification that can predict prognosis after resection of iCCA, lymph node metastasis of iCCA, and curative resection through an international multicenter study.
Efficacy
Overall survival rates, Disease-free survival
Lymph node metastasis, Resection margin
Observational
Not applicable |
Not applicable |
Male and Female
1, iCCA treated between Jan, 2011 and Dec, 2020 (for 10 years)
2, Surgical resection as a first line therapy
3, Patients histologically diagnosed as iCCA
4, iCCA gross type was MF (mass forming type) or MF+PI (bile duct invasion type)
5, Patients who were more than 20 years old at the time of surgery
6, Contrast-enhanced CT or MRI was performed within 1 month before hepatectomy
1, Patients with other synchronous or metachronous cancer
2, Patients who received preoperative local therapy (TACE,RF,radiotherapy,etc.) or preoperative chemotherapy
3, Intraductal papillary neoplasm of the bile duct (IPNB) cases are excluded
4, Combined hepatocellular-cholangiocarcinoma cases are excluded
5, Perihilar cholangiocarcinoma cases are excluded
6, Patients who died within 90-days after surgery because of operative complications
1600
1st name | Shintaro |
Middle name | |
Last name | Yagi |
Kanazawa University
Department of Hepato-Biliary-Pancreatic Surgery and Transplantation
9208640
13-1 Takaramachi, Kanazawa, Ishikawa, Japan
0762652362
yagi@med.kanazawa-u.ac.jp
1st name | Shinichi |
Middle name | |
Last name | Nakanuma |
Kanazawa University
Department of Hepato-Biliary-Pancreatic Surgery and Transplantation
9208641
13-1 Takaramachi, Kanazawa, Ishikawa, Japan
0762652362
s-nakanuma@staff.kanazawa-u.ac.jp
Kanazawa University
Japanese Society of Hepato-Biliary-Pancreatic Surgery
Other
Institutional Review Board of Kanazawa University Hospital
13-1 Takaramachi, Kanazawa
0762652110
rinri@adm.kanazawa-u.ac.jp
NO
2025 | Year | 05 | Month | 30 | Day |
Unpublished
1600
No longer recruiting
2023 | Year | 11 | Month | 05 | Day |
2023 | Year | 12 | Month | 20 | Day |
2024 | Year | 07 | Month | 23 | Day |
2027 | Year | 03 | Month | 31 | Day |
BACKGROUND:
In the 2019 WHO classification,iCCA was pathologically subclassified into two types, depending on whether it derives from small or large bile ducts.The difference in bile duct location where iCCA occurs affects the biological characteristics of iCCA. In recent years, the usefulness of classification based on the anatomical location of iCCA has been focused on. The difference in bile duct location where iCCA occurs affects the biological characteristics of iCCA. In recent years, the usefulness of classification based on the anatomical location of iCCA has been focused on. The iCCA located in the peripheral region of the liver have reported less invasion, less lymph node (LN) metastasis, and better prognosis compared to that of iCCA located in the proximal or central region. However, these studies were conducted at a single institution, with a small number of cases, and lacking a fixed definition of `proximal` and `distal`; thus, reaching a consensus was difficult. In our current study, we will investigate the impact of the anatomical classification of iCCA based on the relationship between Glissonean pedicles (GP)from an oncological perspective.
METHODOLOGY:
A case report form (CRF) will be distributed to the Japanese and Korean authorities. Data on patient characteristics, preoperative CT findings, surgical outcomes, and prognosis will be collected.
Contact and invasion of iCCA with glissonean pedicle (GP) is evaluated by contrast-enhanced CT or MRI.
Definitions of iCCA-Glissonean pedicle contact and invasion:
Negative: Tumor and GP are clearly separated or normal tissue is seen between tumor and GP.
Positive: Tumor contacts with GP at any point. Tumor clearly invades GP. Tumor and GP are separated but the surrounding invasion extends into GP. Tumor and GP are separated but there is deformation in GP near the tumor and peripheral bile duct extension. An investigator can use CENTRAL REVIEW.
2025 | Year | 05 | Month | 06 | Day |
2025 | Year | 05 | Month | 06 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066040