UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061286
Receipt number R000068423
Scientific Title Decision Aid Intervention for Prenatal Testing: A Randomized Pilot Trial
Date of disclosure of the study information 2026/04/17
Last modified on 2026/04/17 11:31:07

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Basic information

Public title

Decision Aid Intervention for Prenatal Testing: A Randomized Pilot Trial

Acronym

"Evaluation of Decision Aid-Based Support for Prenatal Testing

Scientific Title

Decision Aid Intervention for Prenatal Testing: A Randomized Pilot Trial

Scientific Title:Acronym

DA-PRENT Pilot

Region

Japan


Condition

Condition

Pregnancy

Classification by specialty

Nursing Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Feasibility evaluation of decision support intervention

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1.Recruitment: At least 80% of target (at least 30 participants) in 6 months
2.Retention: At least 80% at T2, at least 70% at T3 (DCS completion)
3.Questionnaire completion: At least 90% among retained participants
4.DA acceptability: (a) At least 70% satisfaction 4 or higher (out of 5), (b) At least 80% recommendation willingness, (c) Mean Preparation for Decision Making 3.5 or higher (out of 5)
5.Intervention fidelity: At least 80% protocol adherence

Key secondary outcomes

Estimation of effect size on Decision Conflict Scale (DCS) for sample size calculation in a future definitive RCT


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification

YES

Dynamic allocation


Institution consideration


Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Intervention Group: Decision Aid and Genetic counseling
Participants receive the Decision Aid booklet ("Guide for Thinking About Prenatal Testing") by mail prior to their scheduled genetic counseling appointment at an NIPT-certified facility, followed by standard genetic counseling.

Interventions/Control_2

Control Group :Genetic counseling only
Participants receive standard genetic counseling at NIPT-certified facilities without the Decision Aid intervention.

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


Not applicable

Gender

Female

Key inclusion criteria

Participants must meet all of the following criteria:

Currently pregnant
Singleton pregnancy
Willing to receive genetic counseling regarding prenatal testing
Able to receive genetic counseling at a facility certified by the Committee for the Accreditation System for Prenatal Testing
Gestational age of 14 weeks 6 days or less at the time of genetic counseling
No previous experience with prenatal testing (maternal serum marker screening, NIPT, chorionic villus sampling, or amniocentesis)
Able to read and write in Japanese
Able to provide informed consent via smartphone or computer
Able to receive the Decision Aid by mail

Key exclusion criteria

1. Multiple pregnancy (twins or higher-order multiples)
2. Unable to receive genetic counseling at a facility certified by the Committee for the Accreditation System for Prenatal Testing
3. Previous experience with any prenatal testing

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Rie
Middle name
Last name Notomi

Organization

St. Luke's International University Graduate School
Akita University Hospital

Division name

Nursing Department

Zip code

010-8543

Address

44-2 Hasunuma, Hiromen, Akita City, Akita Prefecture

TEL

018-834-1111

Email

24dn016@slcn.ac.jp


Public contact

Name of contact person

1st name Rie
Middle name
Last name Notomi

Organization

St. Luke's International University Graduate School , Akita University Hospital

Division name

Nursing Department

Zip code

010-8543

Address

44-2 Hasunuma, Hiromen, Akita City, Akita Prefecture

TEL

018-884-6575

Homepage URL


Email

24dn016@slcn.ac.jp


Sponsor or person

Institute

Akita University

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the Promotion of Science

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Akita University Hospital

Address

44-2 Hasunuma, Hiromen, Akita City, Akita Prefecture

Tel

018-833-1166

Email

soken@hos.akita-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 04 Month 17 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 01 Month 20 Day

Date of IRB

2026 Year 01 Month 21 Day

Anticipated trial start date

2026 Year 04 Month 22 Day

Last follow-up date

2026 Year 10 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 04 Month 17 Day

Last modified on

2026 Year 04 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068423