UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061699
Receipt number R000070602
Scientific Title A Single-Center Prospective Exploratory Study Evaluating the Safety and Feasibility of Fluorescence-Guided Biliary Navigation by Direct Intrabiliary or Intracholecystic Injection of Indocyanine Green
Date of disclosure of the study information 2026/07/01
Last modified on 2026/05/26 23:15:43

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Basic information

Public title

A Prospective Study Evaluating the Safety and Utility of ICG Fluorescence-Guided Biliary Navigation Surgery

Acronym

ICG-Biliary Navigation Study

Scientific Title

A Single-Center Prospective Exploratory Study Evaluating the Safety and Feasibility of Fluorescence-Guided Biliary Navigation by Direct Intrabiliary or Intracholecystic Injection of Indocyanine Green

Scientific Title:Acronym

DIRECT-ICG study

Region

Japan


Condition

Condition

Biliary diseases and hepatobiliary-pancreatic tumors requiring hepatobiliary surgery

Classification by specialty

Hepato-biliary-pancreatic surgery Adult

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to prospectively evaluate the safety and feasibility of fluorescence-guided biliary navigation using direct intrabiliary or intracholecystic injection of indocyanine green (ICG). In particular, this study aims to assess the utility of this technique for intraoperative visualization of biliary anatomy, identification of bile leakage sites, and surgical navigation during hepatobiliary procedures.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1. Incidence of adverse events related to direct intrabiliary or intracholecystic injection of indocyanine green
2. Successful intraoperative biliary visualization rate
3. Visibility assessment of biliary anatomy during fluorescence navigation

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

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Diluted indocyanine green (ICG) solution will be directly injected into the bile duct or gallbladder during surgery, followed by near-infrared fluorescence imaging for biliary visualization. Injection will be performed through an ENBD tube, gallbladder puncture, or biliary tube as appropriate.

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 scheduled to undergo hepatobiliary surgery at International University of Health and Welfare Narita Hospital
2. Cases considered suitable for intraoperative biliary navigation
3. Patients who provide written informed consent after receiving sufficient explanation regarding the study

Key exclusion criteria

1. Patients with a history of hypersensitivity to ICG or iodine
2. Pregnant patients or patients with possible pregnancy
3. Patients with severe hepatic dysfunction or poor general condition
4. Patients deemed unsuitable for study participation by the principal investigator

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Osamu
Middle name
Last name Itano

Organization

International University of Health and Welfare Narita Hospital

Division name

Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery

Zip code

2860124

Address

852, Hatakeda, Narita, Chiba

TEL

0476-35-5600

Email

itano@ihwg.jp


Public contact

Name of contact person

1st name Takuya
Middle name
Last name Minagawa

Organization

International University of Health and Welfare Narita Hospital

Division name

Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery

Zip code

2860124

Address

852, Hatakeda, Narita, Chiba

TEL

0476-35-5600

Homepage URL


Email

tminagawa@ihwg.jp


Sponsor or person

Institute

International University of Health and Welfare

Institute

Department

Personal name



Funding Source

Organization

Organization name: Departmental Research Fund, Department of Gastrointestinal Surgery, International University of Health and Welfare Narita Hospital

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

International University of Health and Welfare Chiba District Ethics Review Committee

Address

852, Hatakeda, Narita, Chiba

Tel

0476-35-5600

Email

rinri_md@iuhw.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

2026 Year 07 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

2026 Year 05 Month 26 Day

Date of IRB


Anticipated trial start date

2026 Year 07 Month 01 Day

Last follow-up date

2030 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

2026 Year 05 Month 26 Day

Last modified on

2026 Year 05 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070602