Background: Anxiety disorders are common and debilitating which is why treatment is so important. According to the guidelines, Cognitive Behavioral Therapy (CBT) has the highest level of effectiveness among psychotherapeutic treatments and is the recommended procedure. However, not everyone responds well or at all to CBT which makes a wider range of therapy options valuable. Positive Psychotherapy (PPT) comes to mind as an alternative with its strength-based approach focusing on enhancing well-being and life satisfaction. Additionally, it has not yet been extensively studied how the processes that occur during treatment sessions and between treatment sessions effect treatment outcome. Thus, to lessen the lack of evidence regarding the efficacy of PPT as an anxiety treatment the planned study examines and compares the effectiveness of CBT and PPT as well as the effect of intrasession and intersession processes of the two therapy approaches.
Method: The study is in the planning stage and consists of an efficacy and a process study. The efficacy study is a randomized controlled comparative study of patients with anxiety disorders (generalized anxiety disorder and/or panic disorder with or without agoraphobia) with two active treatment conditions (PPT and CBT) and a control group (CG; positive psychotherapy with minimal therapeutic supervision) in an online group setting. There are three measurement time points: before treatment begins (T0), at the end of the ten-week treatment (T1), and a follow-up after three months (T2). The aim of the study is to evaluate the efficacy of PPT and CBT in the treatment of anxiety disorders, and to compare the efficacy of online-based PPT with minimal therapeutic supervision and online-based PPT with intensive therapeutic supervision in the treatment of anxiety disorders. The process study will be used to evaluate both the intrasession processes and the intersession processes of the therapy in the two intervention groups. In addition, the process variables that predict the success of the therapy and the extent to which PPT and CBT differ in the therapy processes will be tested. The study is registered at the German Clinical Trial Register (№ DRKS00027521).
Discussion: To our knowledge, this is the first randomized controlled comparative study to examine the effectiveness of CBT and PPT for anxiety disorders in an online group setting.
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