Application of Dialectical Behaviour Therapy in treating common psychiatric disorders: study protocol for a scoping review.

INTRODUCTION: Dialectical behaviour therapy (DBT) is a well-known intervention for treating borderline personality disorder, and has been increasingly adapted for other disorders. Standard DBT consists of four treatment modes, delivered over a year. Adaptations to DBT include changes to modes of delivery, treatment length, and skills modules taught to clients, or incorporating interventions from other evidence-based therapies. There is a need to synthesise existing evidence on DBT so that stakeholders-clinicians, researchers and policymakers-can understand how it has been provided for various psychiatric conditions, and whether it has been effective.

METHODS AND ANALYSIS: This study proposes a scoping review conducted according to Arksey and O'Malley's (2005) procedures, to map and summarise the literature on DBT interventions for treating a range of psychiatric concerns. Electronic databases (ie, the Cochrane Central Register of Controlled Trials, PubMed, PsycINFO, SCOPUS, EBSCOhost and ProQuest Dissertations and Theses), conference proceedings and the US National Institutes of Health Ongoing Trial Register will be searched for intervention studies that involve a control or comparison group, and that report quantitative data on pre/post-measures for psychiatric symptom severity. The initial search was conducted on 18 September 2020, and data charting has not commenced. An update will be performed in September 2022, pending this protocol's publication. Data charting will collect individual studies' characteristics, methodology and reported findings. Outcomes will be reported by following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for Scoping Reviews.

ETHICS AND DISSEMINATION: No ethical approval is required for this study. The goal of dissemination is to keep DBT stakeholders abreast on latest updates in clinical applications of DBT. Findings from this research are intended to inform a more specific topic of study (eg, a meta-analysis), to further aid in the development of DBT interventions for psychiatric populations.

REGISTRATION DETAILS: The study protocol was pre-registered with the Open Science Framework on 24 August 2021 (https://osf.io/vx6gw).