UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058846
Receipt number R000067273
Scientific Title Evaluation of the safety of robotic-assisted anatomic hepatectomy, including bile duct resection and biliary reconstruction
Date of disclosure of the study information 2025/09/01
Last modified on 2025/08/20 12:19:35

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Basic information

Public title

A study to evaluate the safety of robotic-assisted liver resection, including bile duct resection and biliary reconstruction

Acronym

Safety study of robotic-assisted liver resection, including bile duct resection and biliary reconstruction

Scientific Title

Evaluation of the safety of robotic-assisted anatomic hepatectomy, including bile duct resection and biliary reconstruction

Scientific Title:Acronym

Evaluation of the safety of robotic-assisted hepatectomy with bile duct resection and biliary reconstruction

Region

Japan


Condition

Condition

Patients diagnosed by contrast-enhanced CT or MRI with primary liver cancer, metastatic liver cancer, perihilar cholangiocarcinoma, intrahepatic cholangiocarcinoma, gallbladder cancer, or benign tumors such as hemangioma, for whom liver resection, as well as bile duct resection and biliary reconstruction, is deemed necessary.

Classification by specialty

Hepato-biliary-pancreatic surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this clinical trial is to evaluate the safety of robotic-assisted anatomic hepatectomy, including bile duct resection and biliary reconstruction.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

All intraoperative and postoperative complications of Clavien-Dindo grade 3 or higher

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Historical

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

This clinical trial aims to evaluate the safety of robotic-assisted anatomic hepatectomy, including bile duct resection and biliary reconstruction. For the eligible disease, surgery will be performed using the da Vinci Xi system, and intraoperative and postoperative complications will be observed.
If a patient is deemed eligible for this study, the principal investigator or sub-investigators will explain the study in the outpatient setting using an informed consent document approved by the Keio University School of Medicine Ethics Committee. The advantages and disadvantages of robotic-assisted surgery will be thoroughly explained, and sufficient time will be provided for the patient to consider whether they wish to undergo this protocol treatment.
Preoperative assessment, including evaluation of liver function, will be performed. Postoperative management will continue until discharge, regardless of the presence or absence of complications, following standard surgical care.
For each case, a Safety Evaluation Committee, including a board-certified hepatobiliary-pancreatic surgeon and an external physician recommended by the Japanese Society of Gastroenterological Surgery or the Japanese Society of Hepato-Biliary-Pancreatic Surgery, will review whether the clinical trial was conducted according to protocol. Additionally, the next patient will not be enrolled until the evaluation report for the previous case is completed.

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Patients diagnosed by contrast-enhanced CT, MRI, or similar imaging modalities with primary liver cancer, metastatic liver cancer, perihilar cholangiocarcinoma, intrahepatic cholangiocarcinoma, gallbladder cancer, or benign tumors such as hemangioma.
2) Patients for whom liver resection, as well as bile duct resection and biliary reconstruction, is deemed necessary.
3) Age 18 years or older at the time of consent.
4) Written informed consent to participate in this clinical trial has been obtained from the patient.
5) ECOG performance status of 0 or 1.

Key exclusion criteria

1) Patients with a history of myocardial infarction within the past 6 months or with unstable angina.
2) Patients with alcohol or drug dependence.
3) Pregnant or breastfeeding women, or women with potential for pregnancy.
4) Patients with respiratory diseases requiring continuous oxygen therapy.
5) Patients judged by anesthesiology to be unfit for general anesthesia.
6) Patients with synchronous multiple primary cancers.
7) Patients requiring vascular resection and reconstruction.
8) Patients judged to be at high surgical risk due to uncontrolled diabetes, long-term steroid use, cardiovascular risk, bleeding tendency, or other relevant conditions.
9) Any other patients deemed inappropriate for participation by the principal investigator or sub-investigators.

Target sample size

3


Research contact person

Name of lead principal investigator

1st name Yuta
Middle name
Last name Abe

Organization

Keio University School of Medicine

Division name

Department of Surgery

Zip code

160-8582

Address

35 Shinano-machi, Shinjuku-ku, Tokyo

TEL

03-5363-3802

Email

yutakabe@keio.jp


Public contact

Name of contact person

1st name Yuta
Middle name
Last name Abe

Organization

Keio University School of Medicine

Division name

Department of Surgery

Zip code

160-8582

Address

35 Shinano-machi, Shinjuku-ku, Tokyo

TEL

03-5363-3802

Homepage URL


Email

yutakabe@keio.jp


Sponsor or person

Institute

Keio University

Institute

Department

Personal name



Funding Source

Organization

none

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

the Keio University School of Medicine, Ethics Committee

Address

35 Shinano-machi, Shinjuku-ku, Tokyo

Tel

03-3353-1211

Email

med-rinri-jimu@adst.keio.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 09 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 08 Month 18 Day

Date of IRB


Anticipated trial start date

2025 Year 09 Month 01 Day

Last follow-up date

2029 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 08 Month 20 Day

Last modified on

2025 Year 08 Month 20 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067273