UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060633
Receipt number R000068989
Scientific Title A cross-sectional survey on genetic counseling and genetic testing in hemophilia carrier care in Japan
Date of disclosure of the study information 2026/02/09
Last modified on 2026/02/09 23:02:35

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Basic information

Public title

A cross-sectional survey on genetic counseling and genetic testing in hemophilia carrier care in Japan

Acronym

A cross-sectional survey on genetic counseling and genetic testing in hemophilia carrier care in Japan

Scientific Title

A cross-sectional survey on genetic counseling and genetic testing in hemophilia carrier care in Japan

Scientific Title:Acronym

A cross-sectional survey on genetic counseling and genetic testing in hemophilia carrier care in Japan

Region

Japan


Condition

Condition

Hemophilia

Classification by specialty

Hematology and clinical oncology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To describe the current practice of genetic counseling and genetic testing for hemophilia carrier diagnosis across specialized hemophilia care centers in Japan.

Basic objectives2

Others

Basic objectives -Others

To identify barriers and unmet needs toward improving and standardizing carrier care nationwide.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Whether each institution provides (1) genetic counseling and (2) genetic testing-based hemophilia carrier diagnosis.

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


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

The physician representative of each block core hospital designated by the Hemophilia Care Network Committee of the Japan Society on Thrombosis and Hemostasis (17 institutions, excluding Tokyo Medical University Hospital).

The physician representative of each regional core hospital designated by the Hemophilia Care Network Committee of the Japan Society on Thrombosis and Hemostasis (92 institutions).

Key exclusion criteria

Individuals who do not provide consent to participate in the questionnaire (i.e., do not agree / do not check the consent box)

Target sample size

109


Research contact person

Name of lead principal investigator

1st name Masato
Middle name
Last name Bingo

Organization

Tokyo Medical University

Division name

Department of Laboratory Medicine

Zip code

1600023

Address

6-7-1 Nishi-shinjuku, Shinjuku city, Tokyo, Japan

TEL

0333426111

Email

bingo@tokyo-med.ac.jp


Public contact

Name of contact person

1st name Masato
Middle name
Last name Bingo

Organization

Tokyo Medical University

Division name

Department of Laboratory Medicine

Zip code

1600023

Address

6-7-1 Nishi-shinjuku, Shinjuku city, Tokyo, Japan

TEL

0333426111

Homepage URL


Email

bingo@tokyo-med.ac.jp


Sponsor or person

Institute

Tokyo Medical University

Institute

Department

Personal name

Masato Bingo


Funding Source

Organization

Japan Agency for Medical Research and Development

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Tokyo Medical University Institutional Review Board

Address

6-7-1 Nishi-shinjuku, Shinjuku-city, Tokyo

Tel

0333426111

Email

IRB@tokyo-med.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 02 Month 09 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

Enrolling by invitation

Date of protocol fixation

2025 Year 10 Month 05 Day

Date of IRB

2025 Year 10 Month 29 Day

Anticipated trial start date

2026 Year 01 Month 09 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The purpose of this study is to conduct a cross-sectional survey on current clinical practice regarding genetic counseling and genetic testing for hemophilia carriers in Japan, to identify challenges in medical care and issues related to the dissemination and implementation of genetic counseling and genetic testing for carrier diagnosis, and to clarify the current situation. Through this work, we aim to improve and standardize the quality of hemophilia carrier care nationwide. The primary outcome is whether genetic counseling and carrier diagnosis using genetic testing for hemophilia carriers are provided at each medical institution in Japan. The study participants will be representatives of block hub hospitals and regional core hospitals certified by the Hemophilia Care Network Committee. This study is designed as a cross-sectional study using an anonymous questionnaire survey. The target number of participating institutions is 109, and the study period will be from the date of approval by the head of the research institution to March 31, 2027.


Management information

Registered date

2026 Year 02 Month 09 Day

Last modified on

2026 Year 02 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068989