IMAGINATOR 2.0: Co-design and Early Evaluation of a Novel Blended Digital Intervention Targeting Self-harm in Young People

An open single-arm study that investigates the IMAGINATOR intervention comprising of delivery of Functional Imagery Training (FIT) for self-harm supported by a new co-designed smartphone app for young people aged 12-25 who experience current repeated self-harming behaviour and have been referred to adult community mental health services (Mental Health Integrated Network Teams; MINT) or Community Child and Adolescent Mental Health Services (CAMHS). For the purpose of this study, self-harm is defined as per NICE guidelines (NICE, 2012): "an act of self-poisoning or self-injury, irrespective of the apparent purpose of the act". The IMAGINATOR intervention has been tested with 16-25 year olds using a proof of concept trial (Di Simplicio et al., 2020) but as the current study proposes to also include younger participants (12-17 year olds) and a newly co-produced version of the IMAGINATOR app, an open single-arm trial is the optimal design to assess the feasibility and acceptability of the new IMAGINATOR intervention following further protocol/materials development and with a different population. The IMAGINATOR intervention provides three face-to-face sessions of FIT, followed by phone support sessions and smartphone app-based support, based on cognitive behavioural and motivational interviewing principles and in line with NICE guidelines for long-term management of self-harm behaviour. FIT is intended as a brief and focused transdiagnostic intervention that can be added to any other pharmacological or non-concurrent psychological therapy. To improve YP's access to and engagement with the intervention, FIT was combined with the new IMAGINATOR smartphone app. The study is based in the West London NHS Trust.