UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059176
Receipt number R000067658
Scientific Title A Prospective Study on the Safety, Urinary Function Preservation, and Institutional Implementation of the Surgical Image Recognition Support Program
Date of disclosure of the study information 2025/09/24
Last modified on 2025/09/24 16:02:18

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Basic information

Public title

A Prospective Study on the Safety, Urinary Function Preservation, and Institutional Implementation of the Surgical Image Recognition Support Program

Acronym

EUREKAStudy

Scientific Title

A Prospective Study on the Safety, Urinary Function Preservation, and Institutional Implementation of the Surgical Image Recognition Support Program

Scientific Title:Acronym

EUREKAStudy

Region

Japan


Condition

Condition

Rectal cancer

Classification by specialty

Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

This study is an exploratory prospective investigation targeting patients undergoing robot-assisted rectal resection. It aims to evaluate the safety of real-time use of the surgical visual support AI program EUREKA during surgery, as well as to examine whether the real-time visualization of nerves and the dissection plane may contribute to reducing the incidence of postoperative urinary dysfunction.

Basic objectives2

Others

Basic objectives -Others

In addition, the study will assess the educational impact of introducing EUREKA into the operating room on surgeons, the potential to reduce the burden on supervising surgeons, and the associated economic effects, thereby exploring incentives for institutional implementation of EUREKA.

Trial characteristics_1

Confirmatory

Trial characteristics_2

Explanatory

Developmental phase



Assessment

Primary outcomes

incidence of intraoperative and postoperative complications.

Key secondary outcomes

Perioperative course, including intraoperative and early postoperative outcomes
Incidence of postoperative urinary dysfunction
Questionnaire on the educational impact, accuracy, and reduction of supervisory burden associated with the use of EUREKA


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

Educational,Counseling,Training

Type of intervention

Device,equipment

Interventions/Control_1

During surgery, AI-analyzed anatomical structures will be displayed on TilePro and made available for reference at any time.
In cases where the operating surgeon does not view the AI analysis results even once throughout the procedure, the case will be excluded from the study analysis.

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

100 years-old >

Gender

Male and Female

Key inclusion criteria

Patients who meet all of the following criteria will be enrolled in this clinical study:

Age 18 years of age or older at the time of registration.
Eastern Cooperative Oncology Group performance status of 0 or 1.
Patients whose primary tumor site is diagnosed as the rectum based on a comprehensive assessment using preoperative endoscopy and imaging: barium enema and/or abdominopelvic CT.
Patients histopathologically diagnosed with colorectal cancer: adenocarcinoma, mucinous carcinoma, signet-ring cell carcinoma, or adenosquamous carcinoma, by endoscopic biopsy of the primary colorectal lesion.
Preoperative diagnosis of cT1-4 (TNM Classification, 8th edition), excluding direct invasion into other organs (SI or AI according to the Japanese Classification of Colorectal Carcinoma, 9th edition). Clinical N and M stages are not restricted.
Patients scheduled to undergo robot-assisted low anterior resection, intersphincteric resection, or abdominoperineal resection. Cases requiring lateral pelvic lymph node dissection will be excluded.
Written informed consent for participation in this study is obtained from the patient.

Key exclusion criteria

Patients meeting any of the following criteria will be excluded from this study:

Presence of any of the following severe comorbidities:
Active infection requiring systemic therapy.

1.Fever 38.0 degrees Celsius or higher at the time of registration.
2.Uncontrolled diabetes mellitus.
3.Uncontrolled hypertension.
4.Unstable angina (angina newly developed or exacerbated within the past 3 weeks) or history of myocardial infarction within the past 6 months.
5.Uncontrolled valvular heart disease, dilated cardiomyopathy, or hypertrophic cardiomyopathy.
6.Psychiatric disorders or psychiatric symptoms that interfere with daily life and are judged to make participation in the study difficult.
7.Conversion to open surgery during the operation.

History of pelvic surgery (e.g., rectal resection, total prostatectomy, hysterectomy) or history of pelvic radiotherapy.
Presence of severe preoperative voiding dysfunction.
Ongoing systemic administration (oral or intravenous) of corticosteroids or other immunosuppressive agents.
Female patients who are pregnant, possibly pregnant, within 28 days postpartum, or breastfeeding.
Any other condition judged by the principal investigator or sub-investigator to render the patient unsuitable for participation in this study.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Marie
Middle name
Last name Hanaoka

Organization

Institute of Science Tokyo

Division name

Department of Gastrointestinal Surgery

Zip code

113-8519

Address

1-5-45Yushima,Bunkyo-ku

TEL

09050750189

Email

hanasrg1@tmd.ac.jp


Public contact

Name of contact person

1st name Marie
Middle name
Last name Hanaoka

Organization

Institute of Science Tokyo

Division name

Department of Gastrointestinal Surgery

Zip code

153-0044

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan

TEL

0358035254

Homepage URL


Email

hanasrg1@tmd.ac.jp


Sponsor or person

Institute

Institute of Science Tokyo

Institute

Department

Personal name



Funding Source

Organization

Institute of Science Tokyo

Organization

Division

Category of Funding Organization

Government offices of other countries

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institute of Science Tokyo

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan

Tel

0358035254

Email

hanasrg1@tmd.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 24 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 09 Month 24 Day

Date of IRB


Anticipated trial start date

2025 Year 12 Month 01 Day

Last follow-up date

2027 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 09 Month 24 Day

Last modified on

2025 Year 09 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067658