Implementation of evidence-based practice for alcohol and substance use disorders: protocol for systematic review

Abstract Background Whilst effective treatments exist for substance use and alcohol use disorders, they are not commonly practised. Studies have shown that only a small percentage of services provide evidence-based treatments such as addiction medications or psychosocial therapies. Although there is a growing body of literature on evidence-based treatment, no synthesis of research on the implementation of evidence-based addiction treatment exists. This proposed systematic review will synthesise and evaluate the effectiveness of implementation programmes in the treatment of patients with drug and alcohol problems using the Consolidated Framework for Implementation Research (CFIR) framework. Methods We will search (from inception onwards) PubMed/MEDLINE, Cochrane Library, PsycINFO, Web of Science and CINAHL. Eligible studies will be clinical trials (e.g. randomised controlled trials, non-randomised controlled trials) and observational studies (e.g. before-and-after studies, interrupted time series) evaluating strategies used to implement evidence-based psychosocial treatments for alcohol and substance use disorders. The primary outcomes will be related to the implementation, service system, or clinical practice (e.g. acceptability, implementation costs, feasibility). Two researchers will independently screen all citations, full-text articles and abstract data. Risk of bias of individual studies will be appraised using appropriate tools. A narrative synthesis will be provided. Discussion This project aims to provide evidence to help guide the design of translational research programmes to improve implementation of evidence-based care in drug and alcohol settings. Findings from the study will specify effective strategies for domains of influence including (1) intervention characteristics (e.g. evidence strength and quality, adaptability), (2) outer setting (e.g. patient needs and resources, external policies and incentives), (3) inner setting (e.g. implementation climate, readiness for implementation), (4) individuals involved (e.g. self-efficacy, knowledge and beliefs about the intervention) and (5) the implementation process (e.g. engaging members of the organisation, executing the innovation). Identified gaps in knowledge will guide further study. Systematic review registration PROSPERO CRD42019123812