Schema Therapy for Dissociative Identity Disorder

Recruiting

Conditions: Dissociative Identity Disorder

Registration Number: NL-OMON25486

Lead Sponsor: niversity of Groningen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Recruiting

Sex: Not specified

Target Recruitment: 32

Inclusion Criteria

•Main diagnosis of Dissociative Identity Disorder, diagnosed with the SCID-D-R
•The initial Dissociative Identity Disorder diagnosis was classified max 3 years ago
•Participant has not received schema therapy before
•Participant has not completed successful trauma treatment
•Participant is motivated to undertake trauma treatment and to actively participate in achieving the treatment goals (reading literature at home, doing home assignments etc.) and to practice behavioral change
•Participant agrees to be recorded; in diagnostic interviews on video and treatment sessions on audio
•Age = 18 and < 60
•Participant is able to understand, read, write, and speak Dutch

Exclusion Criteria

•DSM-5 substance dependence, as measured with the MINI-plus, that requires detox
•Florid psychotic episodes, as determined with the MINI-plus
•Acute suicide risk, as measured with several questions on suicidal behavior, which are administered as part of the intake.
•IQ < 80. IQ testing is requested by default by the intaker when education level is lower than intermediate vocational education. In that case, the screener for intelligence and mild intellectual disability (SCIL) is administered, with further IQ tests (WAIS) if indicated
•Other comorbid Axis I and Axis II disorders are allowed. They will be classified with the MINI-plus and the SCID-5-PD

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Dissociative symptoms (DSS), Post Traumatic Stress Disorder symptoms (PCL-5), Symptoms clusters of Dissociative Identity Disorder: depersonalisation, derealisation, identity confusion and amnesia (SCID-D-R), therapy dropout percentage.

Secondary Outcome Measures

Name	Time	Method
Trait dissociation (DES), a selection of validity scales from the Multidimensional Inventory of Dissociation (MID), metamemory beliefs (DBMQ), unusual sleep experiences (ISES), personality functioning and personality traits (SIPP-SF, PID-5-Brief Form), outcomes related to schema therapy (YSQ3-SF, SMI-2), daily functioning (WHODAS 2.0), happiness, quality of therapeutic relation (WAI-SR) and experiential avoidance (AAQ-II).