Psychometric Properties of the International Trauma Interview (ITI) for ICD-11 PTSD and CPTSD

Post Traumatic Stress Disorder (PTSD) Clinical Trial

Official title:

Psychometric Properties of the International Trauma Interview (ITI) for ICD-11 PTSD and CPTSD

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04086654
• Other study ID #: ITI Project
• Status: Completed
• Phase: N/A
• Start date: March 2, 2020
• Est. completion date: October 15, 2021

Study information

• Verified date: November 2022
• Source: University of Zurich
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The aim of the project is to evaluate the psychometric properties (e.g. validity, reliability) of the International Trauma Interview (ITI) - German version. The ITI is a structured clinical interview that corresponds to the ICD-11 criteria for diagnosing both posttraumatic stress disorder (PTSD) and complex posttraumatic stress disorder (CPTSD).

Eligible participants from psychiatric inpatient and outpatient facilities in Switzerland who have provided informed will complete various self-report measures about trauma-related mental health complaints. In addition, the ITI will be conducted by a trained clinician. Lastly, information from the medical chart will be further used for scientific purpose. The overall assessment will take approximately 1-2 hours to complete.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 77
• Est. completion date: October 15, 2021
• Est. primary completion date: October 15, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 99 Years

Eligibility

Study-specific Inclusion criteria

• Structured diagnostic procedures upon hospital entry not yet started, except for orienting assessments

• Able to give informed consent as documented by signature

• Able to understand and communicate in German Exclusion criteria

• Clinical signs for impaired cognitive abilities

• Other contraindications to undergo the clinical interview

Related Conditions & MeSH terms

• Complex Post-Traumatic Stress Disorder (CPTSD)
• Disease
• Post Traumatic Stress Disorder (PTSD)
• Stress Disorders, Post-Traumatic
• Stress Disorders, Traumatic

Intervention

Diagnostic Test:
• International Trauma Interview (ITI) for ICD-11 PTSD and Complex PTSD - German version
The ITI consists of 18 items and for each symptom, standardized questions as well as probes are presented. A trained professional rates both symptom frequency and intensity, which are converted into an overall index of symptom severity. A diagnosis of PTSD/CPTSD is established by applying the ICD-11 diagnostic rules. It takes approximately 30-60 minutes to administer.

Locations

Country	Name	City	State
Switzerland	Integrierte Psychiatrie Winterthur, Spezialstation für Traumafolgestörungen	Winterthur	Zurich

Sponsors (1)

Lead Sponsor	Collaborator
University of Zurich

Country where clinical trial is conducted

Switzerland, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	International Trauma Interview (ITI)		Up to two weeks upon psychiatric ward entry
Primary	Life Event Checklist DSM-5		Up to two weeks upon psychiatric ward entry
Secondary	Beck Depression Inventory II		Up to seven days upon psychiatric ward entry
Secondary	Brief Symptom Checklist		Up to seven days upon psychiatric ward entry
Secondary	Impact of Event Scale Revised Version		Up to seven days upon psychiatric ward entry
Secondary	PTSD Checklist for DSM-5		Up to seven days upon psychiatric ward entry
Secondary	Borderline Symptom List		Up to seven days upon psychiatric ward entry

External Links

•   Chair organizing the study
•   Information about ICD-11 PTSD/CPTSD measures