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Experiential Schema Therapy to Reduce Aggression

The effectiveness of brief individual experiential Schema Therapy in reducing aggression in patients with personality disorders in outpatient forensic treatment: A multiple-baseline case series design study - Experiential Schema Therapy to Reduce Aggression

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON61206
Enrollment
25
Registered
2025-04-25
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-06-08

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

Conditions

Personality Disorders and aggression Personality Disorders and aggression

Interventions

ST, an integrative form of psychotherapy, is offered in Phase B (6 weekly sessions) and Phase C (20 weekly sessions). Phase B focuses on psycho-education, establishing the therapeutic relationship, an

Sponsors

De Forensische Zorgspecialisten
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: In order to be eligible to participate in this study, a subject must meet all of the following criteria:Older than 18 years oldAggression being the primary focus of treatmentA PD diagnosis, according to DSM-5 criteriaDutch or English literacyIQ above 80

Exclusion criteria

Exclusion criteria: A potential subject who meets any of the following criteria will be excluded from participation in this study:Current drug- or alcohol dependenceCurrent psychotic symptomsAn Autistic Spectrum Disorder diagnosis, according to DSM-5 criteriaSerious neurological impairment, as assessed by a clinician or practitioner involved.Further, pharmacotherapy that already started may be continued, but the dosage may not be changed and no pharmacotherapy may be initiated during the study.

Design outcomes

Primary

MeasureTime frame
Aggression symptoms and anger regulation will be measured by the change of scores on selected subscales of the Forensic Symptoms Inventory – Revised (FSI-R) and the State Anger Inventory 2 (STAXI-2). 

Secondary

MeasureTime frame
Client-formulated goals will be measured weekly as part of the short assessments. Participants rate attainment of two/three personal treatment goals on a visual analogue scale (VAS) of 0-100, with 0 referring to ‘goal not achieved at all’ and 100 ‘achieved a lot more than goal’.  The risk of recidivism in violent behavior will be determined using the Forensic Outpatient Risk Evaluation version 2 (FORE v2) als part of the complete assessments at T0,T1, and T2. The presence of various Schema Modes is assessed by the Schema Mode Inventory (SMI). The SMI is administered as part of the complete assessments at T0, T1, and T2. 

Countries

Netherlands

Contacts

Public ContactN Faber

De Forensische Zorgspecialisten

nfaber@dewaagnederland.nl0652570113

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jun 11, 2026