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

NCT04086654 | Completed

• 1 other identifier: ITI Project
• Study Type: interventional
• Target: 77
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Post Traumatic Stress Disorder (PTSD); Complex Post-Traumatic Stress Disorder (CPTSD)

Outcome Measures

Primary Outcomes (2)

• International Trauma Interview (ITI)

  Up to two weeks upon psychiatric ward entry

• Life Event Checklist DSM-5

  Up to two weeks upon psychiatric ward entry

Secondary Outcomes (5)

• Beck Depression Inventory II

  Up to seven days upon psychiatric ward entry

• Brief Symptom Checklist

  Up to seven days upon psychiatric ward entry

• Impact of Event Scale Revised Version

  Up to seven days upon psychiatric ward entry

• PTSD Checklist for DSM-5

  Up to seven days upon psychiatric ward entry

• Borderline Symptom List

  Up to seven days upon psychiatric ward entry

Study Arms (1)

International Trauma Interview (ITI)

OTHER

Diagnostic Test: International Trauma Interview (ITI) for ICD-11 PTSD and Complex PTSD - German version

Interventions

International Trauma Interview (ITI) for ICD-11 PTSD and Complex PTSD - German version DIAGNOSTIC_TEST

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.

International Trauma Interview (ITI)

Eligibility Criteria

• Age: 18 Years - 99 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Structured diagnostic procedures upon hospital entry not yet started, except for orienting assessments
• Able to give informed consent as documented by signature

You may not qualify if:

• Clinical signs for impaired cognitive abilities
• Other contraindications to undergo the clinical interview

Sponsors & Collaborators

• University of Zurich: lead

Study Sites (1)

Integrierte Psychiatrie Winterthur, Spezialstation für Traumafolgestörungen

Winterthur, Canton of Zurich, 8400, Switzerland

Location

Related Links

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

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, Traumatic; Trauma and Stressor Related Disorders; Mental Disorders

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 9, 2019
• First Posted: September 11, 2019
• Study Start: March 2, 2020
• Primary Completion: October 15, 2021
• Study Completion: October 15, 2021
• Last Updated: November 22, 2022

Record last verified: 2022-11

Data Sharing

• IPD Sharing: Will not share

Locations

CH (1)