Effects of an internet-based cognitive behavioral therapy (iCBT) intervention for improving depressive symptoms and preventing depression among nurses in Japan: a protocol for a randomized controlled trial

Effects of an internet-based cognitive behavioral therapy (iCBT) intervention for improving depressive symptoms and preventing depression among nurses in Japan: a protocol for a randomized controlled trial - Effects of an internet-based cognitive behavioral therapy (iCBT) intervention for improving depressive symptoms and preventing depression among nurses in Japan: a protocol for a randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000033521

Enrollment

1050

Registered

2018-08-01

Start date

2018-08-15

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

Depressive symptoms

Interventions

This study&#39

s iCBT program is a 6-module web-based training program that provides stress management skills based on CBT in a manga story. The iCBT program is comprised six modules, each covering a different compo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Registered nurse 2) Currently employed full-time by the hospital. 3) Can access to the Internet via their own PC, smartphone, or tablet computer

Exclusion criteria

Exclusion criteria: 1) Nurses who are going to take days off for any reasons or leave the hospital during the 6 months study period 2) Practical nurse or nursing aide 3) Non-regular, part-time, or temporary nurses 4) Be diagnosed with a major depressive disorder in the past month (using the web-version of the WHO-CIDI ver.3.0.) 5) Be diagnosed with lifetime bipolar disorder (WHO-CIDI ver.3.0.) 6) Sick leave for 15 or more days in total owing to own health problems during the past three months 7) Those who receive current treatment including psychotherapy from a mental health professional 8) Those who have strong suicidal ideation (Based on the item of Beck Depression Inventory-II (BDI-II) measured by baseline survey)

Design outcomes

Primary

Measure	Time frame
Depression severity (assessed by using Beck Depression Inventory-II [BDI-II])	—

Secondary

Measure	Time frame
The onset of MDE (assessed by using the web-version of the WHO-Composite International Diagnostic Interview [WHO-CIDI ver.3.0]) Psychosocial work environment (assessed by using Job Content Questionnaire [JCQ]) Work engagement (assessed by using the Utrecht Work Engagement Scale [UWES]) Performance (assessed by using the WHO Health and Productivity Questionnaire [HPQ]) Sick leave days in the past 3 months Intention to leave their organization during the last month Knowledge and self-efficacy on stress management	—

Measure

Time frame

The onset of MDE (assessed by using the web-version of the WHO-Composite International Diagnostic Interview [WHO-CIDI ver.3.0]) Psychosocial work environment (assessed by using Job Content Questionnaire [JCQ]) Work engagement (assessed by using the Utrecht Work Engagement Scale [UWES]) Performance (assessed by using the WHO Health and Productivity Questionnaire [HPQ]) Sick leave days in the past 3 months Intention to leave their organization during the last month Knowledge and self-efficacy on stress management

—

Countries

Japan

Contacts

Public ContactKazuto Kuribayashi

Graduate School of Medicine, The University of Tokyo Department of Psychiatric nursing

kkuribayashi-jans@umin.ac.jp03-5841-3612

Outcome results

None listed

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