Feasibility of a Novel Process-based Treatment for Patients With Psychosis
PROBAS
The PROBAS-Study: Developing a Process-based and Modular Group Therapy for Acute Psychiatric Patients With Psychotic Symptoms: a Single-arm Feasibility Study
1 other identifier
interventional
37
1 country
1
Brief Summary
The purpose of this single-arm feasibility study is to develop and pilot test a novel process-based and modular group therapy approach for patients with acute psychotic symptoms in an inpatient setting.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable schizophrenia
Started May 2021
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 26, 2021
CompletedFirst Posted
Study publicly available on registry
May 6, 2021
CompletedStudy Start
First participant enrolled
May 10, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 10, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
September 23, 2023
CompletedOctober 23, 2023
October 1, 2023
10 months
April 26, 2021
October 19, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (12)
Eligibility rate
proportion of those eligible to participate as a percentage of those screened
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Consent rate
proportion of those who signed the informed consent as a percentage of those who where approached to participate
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Trial entry rate
proportion of those who consented and completed baseline measures
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Completion rate
proportion of assessments completed at each time point including screening, baseline, intervention and final meeting and reasons for missing data; subjective patient feedback on frequency, duration, delivery, method and content of the assesments
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Missing data rate
proportion of missing data for each time point including screening, baseline, intervention and final meeting
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Patient engagement
frequency of unattended sessions per patient as well as the reason for non-attendance
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Drop out rate
proportion of patients who entered the trial, attended at least one therapy session after baseline but decided to drop out as well as reasons for the drop out
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Adverse events
number and nature of adverse events
assessed from study start in May 2021 until study completition in May 2022, up to 1 year
Acceptability of Module I
self-rating on subjective effectiveness and acceptability of Module I (one session Psychoeducation). The questionnaire will be designed in a manner similar to session feedback forms developed by Moritz and Woodward (2007) including likert-scaled items on satisfaction, effectiveness, usefulness, applicability and transparency of the aim as well as open-ended feedback
after completion of Module I in week 1
Acceptability of Module II
self-rating on subjective effectiveness and acceptability of Module II (four sessions Metacognition). The questionnaire will be designed in a manner similar to session feedback forms developed by Moritz and Woodward (2007) including likert-scaled items on satisfaction, effectiveness, usefulness, applicability and transparency of the aim as well as open-ended feedback
after completion of Module II in week 3
Acceptability of Module III
self-rating on subjective effectiveness and acceptability of Module III (four sessions Cognitive Defusion). The questionnaire will be designed in a manner similar to session feedback forms developed by Moritz and Woodward (2007) including likert-scaled items on satisfaction, effectiveness, usefulness, applicability and transparency of the aim as well as open-ended feedback
after completion of Module III in week 5
Semi-structured interviews
conducted with one randomly selected patient out of every therapy cycle after completion; selected patients will be asked in detail about feasibility and perceived efficacy of the group program
after completing Module III in week 5
Secondary Outcomes (7)
Psychopathological in general and positive and negative psychotic symptoms (PANSS)
before session 1 in week 1 and after completing the therapy in week 5
Psychopathological in general and positive and negative psychotic symptoms (BPRS)
before session 1 in week 1 and after completing the therapy in week 5
Positive symptoms (hallucinatiosn and delusions) and their severity, intensity and frequency (PSYRATS)
before session 1 in week 1 and after completing the therapy in week 5
Patient's improvement (CGI)
The patient's supervising MD will rate CGI's severity scale for each patient in week 1 and week 5, and the improvement scale only after week 5
Social functioning (WHODAS)
in week 1 and week 5
- +2 more secondary outcomes
Study Arms (1)
Metacognitive and Defusion Training
EXPERIMENTALAll participating patients are allocated to the same five-week experimental group therapy, which consists of three different modules (Module I: Psychoeducation on cognitive processes and rational of the therapy - week 1; Module II: Metacognition - week 2+3; Module III: Cognitive Defusion - week 4+5). Group therapy will start with a psychoeducation session of 60 minutes in the first week and will then take place twice a week with each session lasting 60 minutes.
Interventions
Module I will give a brief introduction into the rational of the therapy and explain the terms cognitive biases and relational responding and their role in the development of psychological problems (psychosis) in a simple language and with the help of examples and small exercises. The principle of metacognition and cognitive defusion in psychotherapy will be made clear. An outlook on the procedures and the goals of the group therapy will be given. Module II will include interventions adapted from the MCT manual (Moritz et al., 2017) and Module III with consist of defusion strategies taken from the ACT group manual (Dambacher et al., 2020) and existing studies on ACT and psychosis (Bach et al., 2013; Gaudiano \& Herbert, 2006).
Eligibility Criteria
You may qualify if:
- Main diagnosis of a mental disorder with psychotic symptoms according to ICD-10 criteria currently experiencing delusions and hallucinations (F20, F21, F22, F23, F24, F25, F28, F29, F30.2, F31.2, F31.5, F32.3, F33.3) indicated by diagnostic assessment of attending MD
- Age between 18 and 70 years
- Informed consent to the study procedures and assessments (in written form)
You may not qualify if:
- Severe neurological or internal concomitant diseases
- IQ \< 80; severe learning disability, brain damage or pervasive developmental disorder
- Missing eligibility for psychotherapy because of missing language skills/hostile or uncooperative behaviour.
- No further constraints will be imposed in order to collect data in a representative clinical sample.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Max Planck Institute of Psychiatry
Munich, Bavaria, 80804, Germany
Related Publications (4)
Barnicot K, Michael C, Trione E, Lang S, Saunders T, Sharp M, Crawford MJ. Psychological interventions for acute psychiatric inpatients with schizophrenia-spectrum disorders: A systematic review and meta-analysis. Clin Psychol Rev. 2020 Dec;82:101929. doi: 10.1016/j.cpr.2020.101929. Epub 2020 Oct 17.
PMID: 33126038BACKGROUNDMoritz S, Woodward TS. Metacognitive training in schizophrenia: from basic research to knowledge translation and intervention. Curr Opin Psychiatry. 2007 Nov;20(6):619-25. doi: 10.1097/YCO.0b013e3282f0b8ed.
PMID: 17921766BACKGROUNDGaudiano BA, Herbert JD. Acute treatment of inpatients with psychotic symptoms using Acceptance and Commitment Therapy: pilot results. Behav Res Ther. 2006 Mar;44(3):415-37. doi: 10.1016/j.brat.2005.02.007.
PMID: 15893293BACKGROUNDHayes SC, Hofmann SG, Ciarrochi J. A process-based approach to psychological diagnosis and treatment:The conceptual and treatment utility of an extended evolutionary meta model. Clin Psychol Rev. 2020 Dec;82:101908. doi: 10.1016/j.cpr.2020.101908. Epub 2020 Sep 7.
PMID: 32932093BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Susanne Lucae, MD, Prof.
Max-Planck-Institute of Psychiatry
- PRINCIPAL INVESTIGATOR
Johannes M Kopf-Beck, PhD
Max-Planck-Institute of Psychiatry
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 26, 2021
First Posted
May 6, 2021
Study Start
May 10, 2021
Primary Completion
March 10, 2022
Study Completion
September 23, 2023
Last Updated
October 23, 2023
Record last verified: 2023-10
Data Sharing
- IPD Sharing
- Will not share