Disorder-specific versus transdiagnostic and clinician-guided versus self-guided internet-delivered treatment for panic disorder and comorbid disorders: A randomized controlled trial

J Anxiety Disord. 2016 Apr:39:88-102. doi: 10.1016/j.janxdis.2016.03.005. Epub 2016 Mar 15.

Abstract

Transdiagnostic cognitive behaviour therapy (TD-CBT) aims to target the symptoms of multiple disorders whereas disorder-specific CBT (DS-CBT) targets the symptoms of principal disorders. This study compared the relative benefits of internet-delivered TD-CBT and DS-CBT when provided in clinician-guided (CG-CBT) and self-guided (SG-CBT) formats for people with a principal diagnosis of Panic Disorder (PD). Participants (n=145) were randomly allocated to receive TD-CBT or DS-CBT and CG-CBT or SG-CBT. Large reductions in symptoms of PD (Cohen's d ≥ 0.71; avg. reduction ≥ 36%) and moderate-to-large reductions in symptoms of comorbid depression (Cohen's d ≥ 0.71; avg. reduction ≥ 33%), generalised anxiety disorder (Cohen's d ≥ 0.91; avg. reduction ≥ 34%) and social anxiety disorder (Cohen's d ≥ 0.50; avg. reduction ≥ 15%) were found over the 24-month follow-up period. Highlighting their efficacy and acceptability, no marked and consistent differences were observed between TD-CBT and DS-CBT or CG-CBT and DS-CBT.

Keywords: 24-month follow-up; Anxiety disorders; Depression, treatment; Disorder-specific; Internet; Panic disorder; Randomized controlled trial; Self-guided; Therapist-guided; Transdiagnostic.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anxiety Disorders / epidemiology*
  • Anxiety Disorders / therapy*
  • Cognitive Behavioral Therapy
  • Comorbidity
  • Depressive Disorder / therapy
  • Female
  • Follow-Up Studies
  • Humans
  • Internet*
  • Male
  • Panic Disorder / epidemiology*
  • Panic Disorder / therapy*
  • Phobia, Social / therapy
  • Stress Disorders, Traumatic, Acute / therapy
  • Therapy, Computer-Assisted*
  • Treatment Outcome