Effectiveness of transdiagnostic seminars to support patients with common mental disorders: A multi-service practice research network study

Abstract Background: This was a multi-site evaluation of psycho-educational transdiagnostic seminars (TDS) as a pre-treatment intervention to enhance the effectiveness and utilisation of high-intensity cognitive behavioural therapy (CBT). Aims: To evaluate the effectiveness of TDS combined with high-intensity CBT (TDS+CBT) versus a matched sample receiving CBT only. Second, to determine the consistency of results across participating services which employed CBT+TDS. Finally, to determine the acceptability of TDS across patients with different psychological disorders.