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Short-term individual experiential schema therapy in adult outpatients with cluster C personality disorders: (How) does it work?

Short-term individual experiential schema therapy in adult outpatients with cluster C personality disorders: (How) does it work? - SIEST-C

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON46626
Enrollment
12
Registered
2018-09-06
Start date
2018-11-06
Completion date
Unknown
Last updated
2024-06-11

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

Conditions

and Obsessive-Compulsive Personality Disorder. Cluster C personality disorders. Patients in the anxious Dependent fearful personality cluster including the Avoidant

Interventions

See the METC protocol 5.1 (page 16-17) for more information. Pre-treatment (B1) In line with general guidelines and the used protocol in this study (e.g. short-term schema therapy, experiential tec

Sponsors

GGZ Delfland (Delft)
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: (1) Principal diagnosis of a DSM-5 cluster C PD (e.g. avoidant, obsessive-compulsive and/or dependent PD), determined by a structured interview (SCID-5-PD) (2) Age between 18 and 65 years (3) Possession of a smartphone, laptop or a desktop computer (4) Written informed consent, including consent to audiotape the sessions (5) Ability to read, write and speak the Dutch language

Exclusion criteria

Exclusion criteria: (1) Non-detoxified alcohol- or drugs dependence (inclusion is possible after detoxification) (2) Full diagnosis of comorbid DSM-5 cluster A or B PD determined by a structured interview (SCID-5-P) (3) Level of education lower than preparatory secondary vocational education (4) Experience with ST in the past year (5) Following other psychological treatments during the study. Pharmacotherapy is allowed as a co-intervention if it was already started before participating in the study. It is protocol that medication (dose) will not be changed during participation in this study, except when a crisis situation requires deviation from protocol (see chapter 9 AEs, SAEs). Participation in the study will end if dosages are changed (6) High suicide risk as determined by the treating therapist (suicide taxation when suicidal ideations are present) (7) A (history of) psychotic or bipolar disorder

Design outcomes

Primary

MeasureTime frame
See the METC protocol 8.1 (page 20) for more information about the measurement method, instruments and assessment moments. Overall wellbeing (ORS) To asses change in overall wellbeing after pre-treatment, treatment, 3 months treatment-FU and at 6 months measurement-FU (compared to baseline), participants will fill in the Outcome Rating Scale (ORS; Miller & Duncan, 2000; Miller, Duncan, Brown, Sparks, & Claud, 2003; Dutch manual by Crouzen, 2010). Participants will fill in this questionnaire once every two days during phase A1, twice a week during phase B1, once a week during phase B2 and A2 and once at 6 months measurement-FU, with a total of 53-64 offered measurement points.

Secondary

MeasureTime frame
See the METC protocol 8.1 (page 20-22) for more information about the measurement method, instruments and assessment moments. Severity of cluster C PD (SCID-5-PD) To asses and evaluate change in cluster C PD severity at 6 months measurement--FU (compared to before baseline), the Structured Clinical Interview for DSM-5 personality disorders (SCID-5-PD; First, Williams, Benjamin & Spitzer, 2015; Dutch translation Arntz, Kamphuis & Derks, 2017) will be administered. Behavioral Treatment Goals (BTG) To asses progress in two SMART formulated Behavioral Treatment Goals (BTG) after pre-treatment, treatment, 3 months treatment-FU and at 6 months measurement-FU (compared to baseline), participants will score these goals on a VAS from 0-100, with 0 referring to *goal not achieved at all*, and 100 *achieved a lot more than goal*. Participants will score their goals with the same frequency as the ORS and NCB, with a total of 53-64 offered measurement points. At 6 months measurement-FU, qualitative information about participants* experience with setting, tracking and evaluating goals will be gathered during a 15 minutes open-question interview. Negative Core Beliefs (NCB) To asses change in credibility of Negative Core Beliefs (NCB) after pre-treatment, treatment, 3 months treatment-FU and at 6 months measurement-FU (compared to baseline), participants will rate the credibility of their two most prominent negative core beliefs on a VAS of 0-100%, with the same frequency as the ORS and BTG, with a total of 53-64 offered measurement points. General mental distress (BSI) To asses change in general mental distress after pre-treatment, treatment, 3 months treatment-FU and at 6 months measurement-FU(compared to baseline), participants will fill in the Brief Symptom Inventory (BSI; de Beurs, 2011; translated from Derogatis, 1975). Participants will fill this in at the start/end of every phase, during an evaluation moment in phase B2 and at 6 months measur

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)