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Early written exposure therapy after traumatic events: The WEP study

The 2-ASAP WEP Study: Written exposure as a preventive intervention for post-traumatic stress disorder - 2-ASAP: Targeted Prevention for PTSD

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON58551
Enrollment
70
Registered
2025-10-29
Start date
2026-04-01
Completion date
Unknown
Last updated
2026-04-27

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

Conditions

Post-traumatic stress disorder (PTSD) PTSD

Interventions

The intervention consists of Written Exposure Therapy (WET), a brief psychotherapeutic intervention aimed at reducing PTSD symptoms. Our WET intervention includes five guided writing sessions (first s

Sponsors

Amsterdam UMC
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Age 18 or older;Index PTE concerns direct exposure to a civilian traumatic event according to DSM-5 PTSD A criterion (i.e. involving threatened death, actual or threatened serious injury) within the past 18-61days;The traumatic event needs to be experienced by the participant themselves, have an acute onset and external cause (i.e. not due to a medical condition) and the potential to lead to serious physical injury; Classified as at risk for chronic PTSD based on the prognostic risk screening instrument Sufficient understanding of Dutch language to understand the study’s procedures.

Exclusion criteria

Exclusion criteria: Evidence of suicidality (i.e., severe suicidal behavior involving acute suicidal ideations and preparatory acts or a specific plan, or clear indications of that current  presented injuries are due to intentional self-inflicted injury);Evidence that the presenting index trauma fits within a pattern of ongoing and/or repeated trauma exposure, such as persistent domestic violence;Evidence of an inability to understand study procedures, risks or being otherwise unable to give informed consent, evidence of being unable to follow protocol (due to any reason, including visual or cognitive or physical impairment hindering completion of protocol);Impairment in ability to use or no regular access to internet-connected smartphone, tablet or computer with camera and microphone for completion of online intervention and assessments;Currently receiving trauma-focused (psychotherapeutic) treatment.

Design outcomes

Primary

MeasureTime frame
The primary objective is to investigate the effectiveness of WET as a selective, preventive intervention against chronic PTSD symptom (severity) in individuals who have recently been exposed to a PTE and who appear to have an increased risk for long-term PTSD. Therefore, the primary outcome measure is the severity of PTSD symptoms, assessed with the PCL-5 across the monthly follow-up assessments compared to the control condition.

Secondary

MeasureTime frame
Secondary objectives include assessing the presence of a PTSD diagnosis at the final assessment (CAPS-5), wellbeing (WHO-5), severity of trauma-related comorbid symptoms such as anxiety, depression (DASS-21), substance use (MATE-Q), and quality of life (WHOQOL-BREF). Furthermore, cost-effectiveness (iMCQ, iPCQ, EQ-5D-5L), as well as acceptability (TFA-Q) of WET will be investigated.

Countries

Netherlands

Contacts

Public ContactM. van Zuiden

Amsterdam UMC

m.vanzuiden@amsterdamumc.nl0208913552

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: May 1, 2026