UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060215
Receipt number R000068874
Scientific Title Evaluation of the Usefulness of an AI-Assisted Endoscopic Ultrasonography Program for the Detection of Solid Pancreatobiliary Lesions: A Prospective Multicenter Observational Study
Date of disclosure of the study information 2026/02/01
Last modified on 2025/12/26 16:45:31

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Basic information

Public title

Evaluation of the Usefulness of an AI-Assisted Endoscopic Ultrasonography Program for the Detection of Solid Pancreatobiliary Lesions: A Prospective Multicenter Observational Study

Acronym

Evaluation of the Usefulness of an AI-Assisted Endoscopic Ultrasonography Program for the Detection of Solid Pancreatobiliary Lesions: A Prospective Multicenter Observational Study

Scientific Title

Evaluation of the Usefulness of an AI-Assisted Endoscopic Ultrasonography Program for the Detection of Solid Pancreatobiliary Lesions: A Prospective Multicenter Observational Study

Scientific Title:Acronym

Evaluation of the Usefulness of an AI-Assisted Endoscopic Ultrasonography Program for the Detection of Solid Pancreatobiliary Lesions: A Prospective Multicenter Observational Study

Region

Japan


Condition

Condition

Solid lesions in the pancreaticobiliary region and adjacent organs detectable by endoscopic ultrasonography (EUS), including the hepatic hilum, duodenum, and lymph nodes

Classification by specialty

Hepato-biliary-pancreatic medicine

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to prospectively evaluate the detection performance of an AI-assisted endoscopic ultrasonography system (EUS-AI) for solid pancreaticobiliary lesions. Specifically, in patients with solid pancreaticobiliary lesions for whom EUS-guided tissue acquisition (EUS-TA) is planned to establish a definitive diagnosis, we will record and assess whether the AI system detects the target lesion during real-time EUS observation. Based on these data, the tumor detection rate of EUS-AI will be calculated.

In addition, secondary analyses will be performed to investigate the impact of lesion location, lesion size, disease entity, operator experience, and pathological diagnosis on AI-based lesion detection. This study is designed as a pilot investigation to clarify the performance of EUS-AI in detecting solid lesions on EUS images under real-world clinical conditions, with the aim of facilitating future improvements in diagnostic accuracy and potential applications in endoscopist training.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Detection rate of EUS-AI for solid pancreaticobiliary lesions scheduled for EUS-guided tissue acquisition (EUS-TA)

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1.Adult patients aged 20 years or older at the time of obtaining informed consent.

2.Patients with suspected solid lesions in the pancreaticobiliary region or adjacent organs detectable by endoscopic ultrasonography (EUS), including the hepatic hilum, duodenum, and lymph nodes, for whom EUS-guided tissue acquisition (EUS-TA) was planned to establish a definitive diagnosis.
This includes cases in which EUS observation was performed regardless of whether EUS-TA was ultimately carried out.

3.Patients in whom EUS observation with concomitant use of EUS-AI can be performed as part of routine clinical practice.

4.Patients who have received a sufficient explanation of the purpose and content of this study and have provided written informed consent of their own free will.

Key exclusion criteria

1.Patients in whom EUS examination is deemed difficult due to poor general condition and inability to undergo sedation.

2.Patients who have previously undergone EUS-AI for the same target lesion and are scheduled to undergo EUS-guided tissue acquisition (EUS-TA) for purposes such as tumor panel testing.

3.Patients who are judged by the principal investigator or sub-investigators to be inappropriate for inclusion in this study.

Target sample size

700


Research contact person

Name of lead principal investigator

1st name Hiroyuki
Middle name
Last name Isayama

Organization

Graduate School of Medicine, Juntendo University

Division name

Department of Gastroenterology

Zip code

113-8421

Address

2-1-1 Hongo, Bunkyo-Ku, Tokyo, Japan

TEL

03-3813-3111

Email

sho-takahashi@juntendo.ac.jp


Public contact

Name of contact person

1st name Sho
Middle name
Last name Takahashi

Organization

Graduate School of Medicine, Juntendo University

Division name

Department of Gastroenterology

Zip code

113-8421

Address

2-1-1 Hongo, Bunkyo-Ku, Tokyo, Japan

TEL

03-3813-3111

Homepage URL


Email

sho-takahashi@juntendo.ac.jp


Sponsor or person

Institute

Juntendo 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

Graduate School of Medicine, Juntendo University

Address

2-1-1 Hongo, Bunkyo-Ku, Tokyo, Japan

Tel

03-3813-3111

Email

sho-takahashi@juntendo.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

順天堂大学医学部附属順天堂医院(東京都)


Other administrative information

Date of disclosure of the study information

2026 Year 02 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 11 Month 01 Day

Date of IRB

2025 Year 12 Month 26 Day

Anticipated trial start date

2026 Year 02 Month 01 Day

Last follow-up date

2030 Year 03 Month 31 Day

Date of closure to data entry

2030 Year 03 Month 31 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information

This study is a prospective multicenter observational study. During routine clinical endoscopic ultrasonography (EUS) examinations, observations are performed with the concomitant use of an AI-assisted lesion detection program (EUS-AI). Patients with solid pancreaticobiliary lesions for whom EUS-guided tissue acquisition (EUS-TA) is planned are included, and whether the AI system detects the target lesion during EUS observation is recorded and evaluated. No intervention is performed, and all diagnostic and therapeutic decisions are made at the discretion of the attending physician.


Management information

Registered date

2025 Year 12 Month 26 Day

Last modified on

2025 Year 12 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068874