Individual Placement and Support for persons with alcohol and drug addiction in a Swedish context (IPS-ADAS): study protocol for a randomised controlled trial

Abstract

Background Employment is a vital source for experiencing well-being and lowering the risk of long-term social marginalisation and poverty. For persons with alcohol and drug addiction, it may also improve sobriety. However, the unemployment situation for this group reflects the knowledge gap in effective interventions to support employment. While Individual Placement and Support (IPS) is recognised as evidence-based supported employment for those with serious mental health problems, no scientific evidence for the target group of addiction exists to date. The aim of the present IPS for Alcohol and Drug Addiction in Sweden (IPS-ADAS) trial is to study whether IPS has an effect on gaining employment for this group. Methods The IPS-ADAS trial is a multisite, pragmatic, parallel, and single-blinded, superiority randomised controlled trial (RCT). Participants (N = 330) will be randomly assigned (1:1) and participate in IPS plus treatment as usual within Addiction Services (IPS + TAU) or Traditional Vocational Rehabilitation (TVR) available plus TAU (TVR + TAU) for 12 months. The principle of intention-to-treat (ITT) will be applied. The hypothesis is that a significantly larger proportion of IPS + TAU participants will be employed for > 1 day (primary outcome), reach employment sooner, work more hours and longer periods of time, and have a higher income as compared to TVR + TAU participants at 18-month follow-up. We further anticipate that those who benefit from IPS + TAU will use less alcohol and drugs, experience better health, and use less care and support, including support from the justice system, in comparison to TVR + TAU participants, at 6, 12, and 18 months. A supplementary process evaluation, using the IPS Fidelity Scale (25 items) and adhered interviews will address delivery and receipt of the IPS as well as contextual hinders and barriers for coproduction and implementation. Working age (18–65), willingness to work, unemployment, participation in an information meeting about the RCT, treatment for addiction diagnosis, and being financially supported by welfare, constitute eligible criteria. Discussion A primary study on the effectiveness of IPS on employment for the new target group of addictions will add to the international IPS knowledge base and inform national policy to include the underrepresented group in working life. Trial registration WHO International Clinical Trials Registry Platform ISRCTN10492363. Registered on 14 August 2023.