Internet-based, randomized, 28weeks (from 28th weeks of pregnancy to 100 days after childbirth) intervention, parallel-group, superiority study to compare the efficacy of text messaging (NCNP kizuna mail) group to non-intervention group for father's mental health assessed by the General Health Questionnaire-12 (GHQ12)

Internet-based, randomized, 28weeks (from 28th weeks of pregnancy to 100 days after childbirth) intervention, parallel-group, superiority study to compare the efficacy of text messaging (NCNP kizuna mail) group to non-intervention group for father's mental health assessed by the General Health Questionnaire-12 (GHQ12) - Randomized Controlled Trial of Text messaging for Perinatal Mental Health of Fathers

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000040172

Enrollment

450

Registered

2020-04-16

Start date

2020-04-17

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Paternal depression and anxiety

Interventions

text messaging (NCNP kizuna mail) to expectant mothers and fathers Our text messaging consists of information about the prenatal mother&#39

s health condition, development of embryo and infant, tips for child care, self-care and partnership. All contents are supervised by obstetricians, pediatricians, and psychiatrists. The length of the

https://www.ncnp.go.jp/cbt/knowell/). no intervention

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Expectant parents with ages 20 years or older at baseline, and from 14th weeks to 28th weeks of pregnancy 2) Participants who give full consent in the participation of the study 3) Participants who can join with one's partner 4) Participants who can understand Japanese 5) Participants who have a mobile phone

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
Mental health condition of fathers assessed by the General Health Questionnaire-12 (GHQ-12) at 100 days after childbirth	—

Secondary

Measure	Time frame
The proportion of the high score in the General Health Questionnaire-12 (GHQ-12) at 100 days after childbirth The total score of the Satisfaction of Husband and wife's relationships Scale at 100 days after childbirth The total score of the Japanese version of the Survey Work-home Interaction at 100 days after childbirth The total score of the Childcare Emotion Scale at 100 days after childbirth	—

Countries

Japan

Contacts

Public ContactAiichiro Nakajima

National Center of Neurology and Psychiatry National Center of Cognitive-Behavior Therapy and Research

aiichiro.nakajima@ncnp.go.jp+81-42-341-2712(3341)

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026