UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057252
Receipt number R000065444
Scientific Title An exploratory study on the accuracy of tissue diagnosis using transvaginal ultrasound and aspiration endometrial sampling equipment in screening for endometrial hyperplasia and uterine cancer in asymptomatic women undergoing physical and occupational health examinations.
Date of disclosure of the study information 2025/04/01
Last modified on 2025/03/10 17:19:44

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Basic information

Public title

An exploratory study on the accuracy of tissue diagnosis using transvaginal ultrasound and aspiration endometrial sampling equipment in screening for endometrial hyperplasia and uterine cancer in asymptomatic women undergoing physical and occupational health examinations.

Acronym

An exploratory study on the accuracy of tissue diagnosis

Scientific Title

An exploratory study on the accuracy of tissue diagnosis using transvaginal ultrasound and aspiration endometrial sampling equipment in screening for endometrial hyperplasia and uterine cancer in asymptomatic women undergoing physical and occupational health examinations.

Scientific Title:Acronym

An exploratory study on the accuracy of tissue diagnosis

Region

Japan


Condition

Condition

endometrial hyperplasia and uterine cancer

Classification by specialty

Obstetrics and Gynecology Adult

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to investigate whether endometrial histology using a simple, low-pain aspiration endometrial sampling device can accurately diagnose endometrial hyperplasia (simple, complex, and atypical forms) and uterine cancer, and whether it is useful as a screening tool, in parallel with transvaginal ultrasound diagnosis.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

(1) The presence or absence of genital bleeding after the examination is counted.
(2) The frequency of progression from endometrial hyperplasia to uterine cancer is counted.
(3) Accuracy and superiority of examination and diagnosis

Key secondary outcomes

(1) The incidence of pain during examination of endometrial histology using a suction-type endometrial sampling device, the rate at which the device can be inserted, the frequency of bleeding, and the absence or presence of pain (degree I, II, and III) will be tabulated.
(2) Detection of lesions other than endometrial hyperplasia and uterine cancer


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

40 years-old <=

Age-upper limit

65 years-old >=

Gender

Female

Key inclusion criteria

1) Those who are able to obtain consent by September 2034 after approval by the director of the facility
2) Females between the ages of 40 and 65 at the time of consent
3) Those who wish to have endometrial tissue diagnosis as a screening for uterine cancer
4) Patients who have undergone gynecological asymptomatic checkups and workplace gynecological checkups at Bene Asakusa Health Screening Center.

Key exclusion criteria

(1) Those who have refused to provide information
(2) Those who have symptoms such as irregular bleeding
(3) Pregnancy or the possibility of pregnancy
(4) Have an abnormality in blood coagulation
(5) Other patients who are deemed ineligible by the physician.

Target sample size

800


Research contact person

Name of lead principal investigator

1st name Hiroshi
Middle name
Last name Sasaki

Organization

Medical Corporation Luce-kai

Division name

Bene Asakusa Health Checkup Clinic

Zip code

111-0033

Address

7F Asakusa Station Building EKIMISE, 1-4-1 Hanakawado, Taito-ku, Tokyo

TEL

03-6802-7910

Email

hrssasaki0226@gmail.com


Public contact

Name of contact person

1st name Natuki
Middle name
Last name Naobayashi

Organization

Medical Corporation Luce-kai

Division name

Bene Asakusa Health Checkup Clinic

Zip code

111-0033

Address

7F Asakusa Station Building EKIMISE, 1-4-1 Hanakawado, Taito-ku, Tokyo

TEL

03-6802-7910

Homepage URL


Email

hrssasaki0226@gmail.com


Sponsor or person

Institute

Medical Corporation Luce-kai

Institute

Department

Personal name

Hiroshi Sasaki


Funding Source

Organization

Medical Corporation Luce-kai

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

Medical Corporation Luce-kai


Other related organizations

Co-sponsor

Tokyo Medical University, Hachioji Medical Center

Name of secondary funder(s)

Tokyo Medical University Hospital


IRB Contact (For public release)

Organization

Mirai Iryo Research Center Inc.

Address

1-3-1, Kudan-minami, Chiyoda-ku, Tokyo 102-0074, Japan

Tel

03-3263-4801

Email

mirai-ec1@mirai-iryo.com


Secondary IDs

Secondary IDs

YES

Study ID_1

TGE02727-966

Org. issuing International ID_1

Mirai Iryo Research Center Inc.

Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

医療法人社団ルーチェ会(東京都)


Other administrative information

Date of disclosure of the study information

2025 Year 04 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 01 Month 20 Day

Date of IRB

2025 Year 02 Month 26 Day

Anticipated trial start date

2025 Year 04 Month 01 Day

Last follow-up date

2034 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

(1) After approval by the Joint Ethical Review Committee and permission to conduct the study from the director of the institution, the procedures specified in
"11 Procedures for Obtaining Informed Consent, etc." will be followed.
(2) Endometrial tissue diagnosis will be performed using a suction-type endometrial sampling device.
(3) The following clinical information will be obtained from the medical records.
(i) Subject background (date of birth, age, sex, menopause, last menstrual period, number of pregnancies, deliveries, and miscarriages)
(ii) Medical history information and family history (presence or absence of colon cancer, breast cancer, uterine cancer, pancreatic cancer, bladder cancer, small intestine cancer, diabetes mellitus, etc.)
(iii) Date of examination
(iv) Whether or not endometrial hyperplasia and uterine cancer have occurred and whether or not the patient is asymptomatic
(v) Transvaginal ultrasound images at the time of gynecological examination
(vi) Histopathological findings and transvaginal ultrasound findings
(4) Presence or absence of pain during the examination, whether or not instruments can be inserted, and the amount of tissue sampled (large, medium, small)
(5) Ten-year follow-up is conducted, but asymptomatic checkups and gynecological checkups in the workplace are only available at the patient's request.
(6) Histopathological diagnosis will be made independently by two pathologists, and the concordance rate of the diagnosis of malignancy will be tested by the spermann's test.


Management information

Registered date

2025 Year 03 Month 10 Day

Last modified on

2025 Year 03 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065444