| 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 | 
A Prospective Study on the Safety, Urinary Function Preservation, and Institutional Implementation of the Surgical Image Recognition Support Program
EUREKAStudy
A Prospective Study on the Safety, Urinary Function Preservation, and Institutional Implementation of the Surgical Image Recognition Support Program
EUREKAStudy
| Japan | 
Rectal cancer
| Gastrointestinal surgery | 
Malignancy
NO
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.
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.
Confirmatory
Explanatory
incidence of intraoperative and postoperative complications.
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
Interventional
Single arm
Non-randomized
Open -no one is blinded
Historical
1
Educational,Counseling,Training
| Device,equipment | 
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.
| 18 | years-old | <= | 
| 100 | years-old | > | 
Male and Female
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.
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.
20
| 1st name | Marie | 
| Middle name | |
| Last name | Hanaoka | 
Institute of Science Tokyo
Department of Gastrointestinal Surgery
113-8519
1-5-45Yushima,Bunkyo-ku
09050750189
hanasrg1@tmd.ac.jp
| 1st name | Marie | 
| Middle name | |
| Last name | Hanaoka | 
Institute of Science Tokyo
Department of Gastrointestinal Surgery
153-0044
1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
0358035254
hanasrg1@tmd.ac.jp
Institute of Science Tokyo
Institute of Science Tokyo
Government offices of other countries
Institute of Science Tokyo
1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
0358035254
hanasrg1@tmd.ac.jp
NO
| 2025 | Year | 09 | Month | 24 | Day | 
Unpublished
Preinitiation
| 2025 | Year | 09 | Month | 24 | Day | 
| 2025 | Year | 12 | Month | 01 | Day | 
| 2027 | Year | 03 | Month | 31 | Day | 
| 2025 | Year | 09 | Month | 24 | Day | 
| 2025 | Year | 09 | Month | 24 | Day | 
Value 
 https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067658