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Completed

NCT Number: NCT04086654

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

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.

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Key information

Conditions

Post Traumatic Stress Disorder (PTSD) Complex Post-Traumatic Stress Disorder (CPTSD) Mental Disorders Stress Disorders, Post-Traumatic Stress Disorders, Traumatic Trauma and Stressor Related Disorders

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Integrierte Psychiatrie Winterthur, Spezialstation für Traumafolgestörungen

Winterthur, Canton of Zurich, 8400, Switzerland

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

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.

Primary outcomes

  1. International Trauma Interview (ITI)

    Time frame: Up to two weeks upon psychiatric ward entry

  2. Life Event Checklist DSM-5

    Time frame: Up to two weeks upon psychiatric ward entry

Secondary outcomes

  1. Beck Depression Inventory II

    Time frame: Up to seven days upon psychiatric ward entry

  2. Brief Symptom Checklist

    Time frame: Up to seven days upon psychiatric ward entry

  3. Impact of Event Scale Revised Version

    Time frame: Up to seven days upon psychiatric ward entry

  4. PTSD Checklist for DSM-5

    Time frame: Up to seven days upon psychiatric ward entry

  5. Borderline Symptom List

    Time frame: Up to seven days upon psychiatric ward entry

Sponsors and collaborators

Lead sponsor

University of Zurich

Other

Registry information

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Sep 11, 2019
Registry last updated
Nov 22, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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