UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062245
Receipt number R000067050
Scientific Title Development and effects of an intervention programme co-parenting and prevent postpartum depression: A randomised controlled trial
Date of disclosure of the study information 2026/07/22
Last modified on 2026/07/22 18:21:07

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Basic information

Public title

Development and effects of an intervention programme co-parenting and prevent postpartum depression: A randomised controlled trial

Acronym

Development and effects of an intervention programme co-parenting: RCT

Scientific Title

Development and effects of an intervention programme co-parenting and prevent postpartum depression: A randomised controlled trial

Scientific Title:Acronym

Development and effects of an intervention programme co-parenting: RCT

Region

Japan


Condition

Condition

Postpartum depression

Classification by specialty

Nursing

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The aim of this study was to promote co-parenting among expectant mothers and fathers by promoting communication in child-rearing and to examine the effects of this intervention program, including its impact on mental health.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

1. Marital Satisfaction Scale
2. Edinburgh Postnatal Depression Scale
3. Parental Burnout Assessment
4. Amount of time spent communicating together

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Pregnancy Based Coparenting Promotion Program Participants received the Pregnancy Based Coparenting Promotion Program in addition to usual antenatal care. The program consisted of an educational booklet for expectant fathers and mothers, providing information on postpartum maternal physical and psychological changes, infant care, communication between partners, and sharing of parenting and household responsibilities. Participants were encouraged to use the booklet together during pregnancy.

Interventions/Control_2

Participants received routine antenatal care provided by the study institutions.No additional coparenting educational program or study specific intervention was provided.

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

Male and Female

Key inclusion criteria

The study was conducted at a general hospital with consent to participate, targeting pregnant women aged 20 or older who were planning to give birth and their husbands. As the study required respondents to answer questionnaires and communicate with midwives, participants were limited to those who could communicate in Japanese.

Key exclusion criteria

Minors and those requiring a proxy were excluded.

Target sample size

112


Research contact person

Name of lead principal investigator

1st name Kumiko
Middle name
Last name Kido

Organization

Tokushima University

Division name

Department of Midwifery, Graduate School of Biomedical Sciences

Zip code

770-8503

Address

3-18-15,Kuramoto-cho,Tokushima city

TEL

088-633-9080

Email

kido-k@tokushima-u.ac.jp


Public contact

Name of contact person

1st name Kumiko
Middle name
Last name Kido

Organization

Tokushima University

Division name

Department of Midwifery, Graduate School of Biomedical Sciences

Zip code

770-8503

Address

3-18-15,Kuramoto-cho,Tokushima city

TEL

088-633-9080

Homepage URL


Email

kido-k@tokushima-u.ac.jp


Sponsor or person

Institute

Tokushima University

Institute

Department

Personal name



Funding Source

Organization

Kagawa Prefectural University of Health Sciences

Organization

Division

Category of Funding Organization

Local Government

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Yashima General Hospital

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Committee of Kagawa Prefectural University of Health Sciences

Address

281-1 Hara, Mure-cho, Takamatsu, Kagawa 761-0123, Japan

Tel

087-870-1212

Email

uemura@kagawa-puhs.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 07 Month 22 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

112

Results

Baseline characteristics were comparable between the intervention and control groups. Participants generally had high marital satisfaction and low parental burnout and depressive symptoms. A significant group-by-time interaction was observed only for maternal parental burnout. No significant intervention effects were found for maternal depressive symptoms, marital satisfaction, communication time, or any paternal outcomes.

Results date posted

2026 Year 07 Month 15 Day

Results Delayed

Delay expected

Results Delay Reason

The manuscript submission was delayed and is currently in progress.

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

Completed

Date of protocol fixation

2022 Year 06 Month 01 Day

Date of IRB

2022 Year 10 Month 19 Day

Anticipated trial start date

2022 Year 10 Month 25 Day

Last follow-up date

2023 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 07 Month 15 Day

Last modified on

2026 Year 07 Month 22 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067050