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The relationship between trauma, post-traumatic stress disorder with dissociative symptoms, obsessive-compulsive and somatoform symptoms

The relationship between trauma, post-traumatic stress disorder with dissociative symptoms, obsessive-compulsive and somatoform symptoms

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00040277
Enrollment
-9999
Registered
2026-07-22
Start date
2026-07-23
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

F43.1 F42 F45

Interventions

Group 1: Participants with PTSD: A single assessment of trauma exposure, diagnostic criteria and severity of PTSD symptoms including complex symptoms, diagnostic criteria and severity of obsessive-com

Sponsors

Universität des Saarlandes, Abteilung für Klinische Psychologie und Psychotherapie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Capacity to consent, consent to participate in the study

Exclusion criteria

Exclusion criteria: Severe cognitive impairment, legal incapacity, inability to provide informed consent, acute psychosis, acute mania

Design outcomes

Primary

MeasureTime frame
- trauma exposure, assessed using the short form of the Childhood Trauma Questionnaire (CTQ) and the Life Event Checklist for DSM-5 (LEC-5); - Screening for PTSD using the PTSD Checklist for DSM-5 (PCL-5); - Diagnostic criteria and severity of PTSD symptoms, assessed using the Clinician-Administered PTSD Scale for DSM-5 (CAPS 5) interview; - Trauma-related avoidance: avoidance subscale of the CAPS (CAPS-5 Symptom Cluster Severity Score for avoidance), trauma-related avoidance behaviour, assessed using the avoidance subscale of the Impact of Event Scale – Revised (IES-R), maladaptive responses to intrusive trauma memories assessed using the Response to Intrusions Questionnaire (RIQ), trauma-related avoidance behaviour assessed using the Posttraumatic Avoidance Behaviour Questionnaire (PABQ), and automatic and controlled trauma-related avoidance assessed using the Posttraumatic Avoidance Scale (PAS). The PABQ and PAS will each be translated versions of the respective measurement instruments for the purpose of this study. - dissociative symptoms, assessed using the Dissociation Tension Scale (DSS) and the "Fragebogen zu Dissoziativen Symptomen" (FDS; German adaption of DES, Dissociative Experiences Scale); - Severity of obsessive-compulsive symptoms, assessed using the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), the Obsessive-Compulsive Inventory-Revised (OCI-R) and the "Multidimensionales Zwangsstörungsinventar" (MZI; German revision of the VOCI, Vancouver Obsessional-Compulsive Inventory);. - Severity of somatoform symptoms: symptoms consistent with Somatic Symptom Disorder according to DSM-5, assessed using the Patient Health Questionnaire (PHQ-15), the Somatic Symptom Disorder Scale-12 (SSD-12) and a modified version of the "Screening für Somatoforme Störungen" (SOMS) adapted to the time frame to which the items refer; - Severity of somatoform symptoms: symptoms consistent with illness anxiety disorder according to DSM-5, asessed using a modified version of

Secondary

MeasureTime frame
- Severity of complex PTSD symptoms, assessed using the International Trauma Interview (ITI) and the International Trauma Questionnaire (ITQ); - Diagnostic criteria for obsessive-compulsive and somatoform disorders, assessed using the respective sections of the Diagnostic Interview for Mental Disorders – Open Access (DIPS-OA); - Depressive avoidance, assessed using the Cognitive-Behavioural Avoidance Scale (CBAS) and experiential avoidance, assessed using the Brief Experiential Avoidance Questionnaire (BEAQ); - Self-compassion, assessed using the short form of the Self-Compassion Scale (SCS-D short form); - Depressive symptoms, assessed using the Patient Health Questionnaire (PHQ-9) All secondary outcomes are assessed once during the study. As this is a cross-sectional study, there is no follow-up assessment.

Countries

Germany

Contacts

Public ContactLaura-Isabel Andrea Lay

Universität des Saarlandes, Abteilung für Klinische Psychologie und Psychotherapie

laura-isabel.lay@uni-saarland.de+49 681 302-71000

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026