Psychometric Properties of the International Trauma Interview (ITI) for ICD-11 PTSD and CPTSD (NCT04086654) | Clinical Trial Compass
CompletedNot Applicable
Psychometric Properties of the International Trauma Interview (ITI) for ICD-11 PTSD and CPTSD
Switzerland77 participantsStarted 2020-03-02
Plain-language 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.
Who can participate
Age range
18 Years – 99 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This study tested a new interview tool called the International Trauma Interview to diagnose PTSD and Complex PTSD using ICD-11 criteria — how does ICD-11 differ from the DSM-5 criteria my doctor currently uses, and could that difference affect how my own condition is identified or treated?
2Since this trial was focused on validating a diagnostic tool rather than testing a treatment, could the ITI potentially be used in my own assessment, and is my care team already using ICD-11 based diagnostic approaches?
3The study also used the Life Event Checklist from DSM-5 to assess traumatic events — are there gaps between how different tools measure my trauma history, and could those gaps affect which diagnosis I receive or which treatments are recommended for me?
4Now that this study is completed, has the International Trauma Interview been adopted anywhere in clinical practice, and is it worth seeking out a clinician who uses this more structured diagnostic approach for PTSD or Complex PTSD?
5Given that Complex PTSD is a distinct diagnosis from PTSD in ICD-11, should we discuss whether my symptoms might fit one better than the other, and would that distinction change the treatment options my doctor would recommend?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
International Trauma Interview (ITI)
Timeframe: Up to two weeks upon psychiatric ward entry
2
Life Event Checklist DSM-5
Timeframe: Up to two weeks upon psychiatric ward entry