UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062947
Receipt number R000071981
Scientific Title Disease burden, unmet needs, and treatment preferences among patients with haemophilia B in Japan: a mixed-methods study incorporating a discrete choice experiment
Date of disclosure of the study information 2026/10/01
Last modified on 2026/09/16 12:37:27

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Basic information

Public title

Disease burden, unmet needs, and treatment preferences among patients with haemophilia B in Japan: a mixed-methods study incorporating a discrete choice experiment

Acronym

Disease burden, unmet needs, and treatment preferences among patients with haemophilia B in Japan: a mixed-methods study incorporating a discrete choice experiment

Scientific Title

Disease burden, unmet needs, and treatment preferences among patients with haemophilia B in Japan: a mixed-methods study incorporating a discrete choice experiment

Scientific Title:Acronym

Disease burden, unmet needs, and treatment preferences among patients with haemophilia B in Japan: a mixed-methods study incorporating a discrete choice experiment

Region

Japan


Condition

Condition

Hemophilia B

Classification by specialty

Hematology and clinical oncology Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To explore how adult patients with haemophilia B in Japan experience their disease and current treatments, including impacts on daily life, treatment burden, and unmet needs.

Basic objectives2

Others

Basic objectives -Others

To quantify the relative importance and average utility of key haemophilia B treatment attributes in driving treatment preferences among adult patients with haemophilia B receiving prophylaxis in Japan.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The primary qualitative outcome will consist of themes derived from de-identified qualitative interview transcripts describing disease experience, treatment burden, unmet needs, and treatment-related decision-making. The primary quantitative outcomes will be DCE-derived RAI and average utility estimates derived from part-worth utilities.

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

18 years-old <=

Age-upper limit

65 years-old >=

Gender

Male and Female

Key inclusion criteria

Diagnosis of haemophilia B confirmed by a physician.
Currently receiving prophylactic treatment for haemophilia B, defined as regular or ongoing therapy intended to prevent bleeding.
18-65 years of age.
Residency in Japan and ability to read and complete study materials in Japanese.

Key exclusion criteria

Participant is unable to provide informed consent.

Patient is not diagnosed with haemophilia B, for example haemophilia A.

Participant is employed by an entity associated with products for coagulation disorders.

Target sample size

62


Research contact person

Name of lead principal investigator

1st name Hoel
Middle name
Last name Goisbault

Organization

CSL Behring K.K.

Division name

Market Access & New Products

Zip code

107-0061

Address

Tokyo Minato-ku Kita-Aoyama 1-2-3

TEL

03-4213-0180

Email

hoel.goisbault@cslbehring.com


Public contact

Name of contact person

1st name Hoel
Middle name
Last name Goisbault

Organization

CSL Behring K.K.

Division name

Market Access & New Products

Zip code

107-0061

Address

Tokyo Minato-ku Kita-Aoyama 1-2-3

TEL

03-4213-0180

Homepage URL


Email

hoel.goisbault@cslbehring.com


Sponsor or person

Institute

CSL Behring K.K.

Institute

Department

Personal name



Funding Source

Organization

CSL Behring K.K.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Non-Profit Organization MINS Institutional Review Board

Address

Tokyo Minato-ku Mita 5-20-9-401

Tel

0364161868

Email

npo-mins@j-irb.com


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 10 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

2026 Year 07 Month 06 Day

Date of IRB


Anticipated trial start date

2026 Year 10 Month 01 Day

Last follow-up date

2028 Year 01 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

N/A


Management information

Registered date

2026 Year 09 Month 16 Day

Last modified on

2026 Year 09 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071981