Omega-3 polyunsaturated fatty acids for secondary prevention of critical incident stress after Japan earthquake March 11 in disaster medical assistance team (DMAT) workers: a randomized controlled trial

Omega-3 polyunsaturated fatty acids for secondary prevention of critical incident stress after Japan earthquake March 11 in disaster medical assistance team (DMAT) workers: a randomized controlled trial - Healing DMAT workers' distress by omega-3 polyunsaturated fatty acids in emergency (HOPE): a randomized controlled trial

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000005367

Enrollment

450

Registered

2011-04-01

Start date

2011-04-01

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

Critical Incident Stress

Interventions

Psychoeducation + Omega-3 Polyunsaturated Fatty Acids Psychoeducation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Japan DMAT workers assigned to the disaster area following the Japan earthquake March 11 -A native Japanese speaking ability -Those who can understand scope and contents in the trial

Exclusion criteria

Exclusion criteria: Use of warfarin within 3 month at regular intervals

Design outcomes

Primary

Measure	Time frame
Impact of Event Scale revised (IES-R)[Time frame: 3 month]	—

Secondary

Measure	Time frame
-The Center for Epidemiologic Studies Depression Scale(CES-D)[Time frame: 3 month] -Resilience Scale short version(RS-14) [Time frame: 3 month] -Kessler K6(K6)[Time frame: 3 month]	—

Countries

Japan

Contacts

Public ContactYutaka Matsuoka

National Disaster Medical Center Clinical Research Institute, Department of Psychiatry

Outcome results

None listed

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