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Process-based Therapy for Difficult-to-treat Anxiety Disorders and Depression

Process-based Therapy vs. Routine-CBT for Difficult-to-treat Anxiety Disorders and Depression

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06517589
Acronym
PBTRAND
Enrollment
80
Registered
2024-07-24
Start date
2024-01-29
Completion date
2025-07-30
Last updated
2024-07-30

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

Conditions

Anxiety Disorder, Depression

Brief summary

The aim of this study is to test the relative efficacy of Process-based Therapy compared to traditional CBT delivered in routine practice (r-CBT) for difficult-to-treat anxiety disorders and depression.

Detailed description

Process-based Therapy (PBT) is a new framework to intervention planning, based on the use of ecological momentary assessment (EMA) data, feedback of dynamic network analysis and matching of interventions to central nodes of the network. Although preliminary support for its applicability has been reported from a single-case study, there are no data on the feasibility and effectiveness in a larger clinical sample. The investigators have translated a Training Manual of PBT and modified for delivery of CBT in Mental Health Service. The aim of this study is to test the relative efficacy of PBT compared to traditional CBT delivered in routine practice (r-CBT) for difficult-to-treat anxiety disorders and depression.

Interventions

PBT (20 sessions), intervention planning based on the use of EMA data, feedback of dynamic network analysis and matching of interventions to central nodes of the network.

OTHERCognitive Behavioral Therapy (CBT)

CBT (20 sessions), intervention planning as usual based on manual.

Sponsors

Philipps University Marburg
CollaboratorOTHER
Goethe University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* A primary DSM-5 diagnosis of depressive or anxiety disorder * At least two unsuccessful attempts of pharmacological or psychological treatment according to the German guidelines for the treatment of depression or anxiety disorders (Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, AWMF) * Age 18-65 years * Sufficient knowledge of the German language * Participating patients are not required to discontinue medication, but to keep medication constant over the treatment period

Exclusion criteria

* Increased suicidality * Substance abuse or dependency * Borderline personality disorder * Pervasive developmental disorder * Psychotic disorder * Eating disorder * Bipolar disorder * Severe physical illness

Design outcomes

Primary

MeasureTime frameDescription
Depression Anxiety Stress Scale (DASS-21)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upEmotional distress, minimum value=0, maximum value=63, higher scores mean worse outcome

Secondary

MeasureTime frameDescription
Euroqol-5D (EQ-5D)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upHealth related quality of life, minimum health state=11111, maximum health state=55555, higher scores in health state mean worse outcome, minimum health score=0, maximum health score=100, higher scores in health score mean better outcome
Positive-Mental Health Scale (PMH)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upPositive mental health, minimum value=9, maximum value=36, higher scores mean better outcome
Anticipatory and Consummatory Interpersonal Pleasure Scale (ACIPS)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upPleasure in interpersonal situations, minimum value=17, maximum value=102, higher scores mean better outcome
Depression Anxiety Stress Scale (DASS-10)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upPsychological symptoms of distress, depressive and anxious symptoms, minimum value=0, maximum value=30, higher scores mean worse outcome
Acceptance and Action Questionnaire Version 2 (AAQ-2)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upPsychological flexibility and acceptance, minimum value=7, maximum value=49, higher scores mean worse outcome
Reflective Functioning Questionnaire (RFQ-8)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upReflective Functioning, minimum value=8, maximum value=56, higher scores on the uncertainty dimension mean worse outcome, higher scores in the certainty dimension mean better outcomes
Client Satisfaction Questionnaire (CSQ-8)Assessed at post-treatment at week 32Client Satisfaction, minimum value=8, maximum value=32, higher scores mean better outcome
Process-based Assessment Tool (PBAT)Assessed at inclusion, at pre-treatment, at post-treatment (week 32) and at 6 month follow-upVariation, selection and retention of adaptive behavior, minimum value=0, maximum value=1800, higher scores mean better outcome
Cognitive-Behavioral-Therapy Skills Questionnaire (CBTSQ)Assessed at inclusion, pre-treatment, weekly during the treatment (from week 11 to 30), at post-treatment (week 32) and at 6 month follow-upPatients use of CBT interventions, minimum value=6, maximum value=42, higher scores mean better outcome

Countries

Germany

Contacts

Primary ContactUlrich Stangier, PhD
stangier@psych.uni-frankfurt.de049 1707339293

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026