UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062472
Receipt number R000071501
Scientific Title A Clinical Study on the Omission of Lymph Node Dissection Based on Intraoperative Diagnosis of Sentinel Lymph Nodes in Uterine Cancer Surgery
Date of disclosure of the study information 2026/08/06
Last modified on 2026/08/04 21:13:11

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Basic information

Public title

A Clinical Study on the Omission of Lymph Node Dissection Based on Intraoperative Diagnosis of Sentinel Lymph Nodes in Uterine Cancer Surgery

Acronym

A Clinical Study on the Omission of Lymph Node Dissection Based on Intraoperative Diagnosis of Sentinel Lymph Nodes in Uterine Cancer Surgery

Scientific Title

A Clinical Study on the Omission of Lymph Node Dissection Based on Intraoperative Diagnosis of Sentinel Lymph Nodes in Uterine Cancer Surgery

Scientific Title:Acronym

A Clinical Study on the Omission of Lymph Node Dissection Based on Intraoperative Diagnosis of Sentinel Lymph Nodes in Uterine Cancer Surgery

Region

Japan


Condition

Condition

endometrial cancer and cervical cancer

Classification by specialty

Obstetrics and Gynecology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the safety and efficacy of a reduced-scope surgical procedure that omits pelvic lymph node dissection through sentinel lymph node navigation surgery in early-stage uterine cancer

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Incidence of lymphedema within 2 years after surgery

Key secondary outcomes

Perioperative complications, ICG administration site and dose in the uterine body, recurrence rate, and prognosis


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

Diagnosis

Type of intervention

Medicine

Interventions/Control_1

Indocyanine green and Technecetinic acid

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

Female

Key inclusion criteria

1. Stage 1A or IB endometrial cancer (FIGO 2008) or Stage IA1, IA2, IB1, or IIA1 cervical cancer (FIGO 2018)
2. Patients with no enlarged lymph nodes detected on preoperative examination
3. Patients from whom written informed consent has been obtained

Key exclusion criteria

Patients with an unconfirmed diagnosis of uterine cancer
Patients with uterine sarcoma
Patients with hypersensitivity to 99mTc or ICG
Patients for whom participation in the study is considered difficult, such as those with psychosis or psychiatric symptoms

Target sample size

150


Research contact person

Name of lead principal investigator

1st name Akemi
Middle name
Last name Morimoto

Organization

Ehime University

Division name

Department of Obstetrics and Gynecology

Zip code

791-0295

Address

454 Shitsukawa, Toon city, Ehime

TEL

089-060-5379

Email

morimoto.akemi.ag@ehime-u.ac.jp


Public contact

Name of contact person

1st name Akemi
Middle name
Last name Morimoto

Organization

Ehime University

Division name

Department of Obstetrics and Gynecology

Zip code

791-0295

Address

454 Shitsukawa, Toon city, Ehime

TEL

089-060-5379

Homepage URL


Email

morimoto.akemi.ag@ehime-u.ac.jp


Sponsor or person

Institute

Ehime University

Institute

Department

Personal name



Funding Source

Organization

Department of Obstetrics and Gynecology, Ehime University

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

Ehime University

Address

454 Shitsukawa, Toon city, Ehime

Tel

089-060-5379

Email

morimoto.akemi.ag@ehime-u.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 08 Month 06 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

Open public recruiting

Date of protocol fixation

2026 Year 03 Month 04 Day

Date of IRB

2026 Year 03 Month 23 Day

Anticipated trial start date

2026 Year 04 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 08 Month 04 Day

Last modified on

2026 Year 08 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071501