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

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.

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.