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Development of Goal Management Training+ (GMT+) for methamphetamine use disorder through collaborative design: A process description

Background Methamphetamine use disorder (MUD) is associated with executive dysfunctions, which are linked with poorer treatment outcomes including earlier drop out and relapse. However, current treatments for MUD do not address executive functions. Goal Management Training (GMT) is an evidence-based cognitive remediation program for executive dysfunction but required modifications to enhance its relevance and application within addiction treatment settings. This study aimed to 1) tailor GMT to the key cognitive deficits and typical treatment duration of MUD; 2) explore consumers (people with MUD) engagement with the revised program; 3) implement a protocol of the program with consumers; and 4) present the manualised standard administration to clinical service providers. Methods We followed the Medical Research Council Complex Interventions Framework and employed an evidence- and person-based intervention development process. We used a four-phased approach and collaborated with neuropsychology experts, design researchers in healthcare, consumers with MUD, and clinical service providers. Each aim was addressed in a separate study phase; including content refinement and review with neuropsychology experts (phase 1), intervention design and collaboration with consumers (phase 2), prototype development and review with consumers (phase 3), and final program modifications and review with clinical stakeholders (phase 4). Results Findings from phase 1 indicated support for targeting four cognitive processes (attention, impulse control, goal setting, and decision-making). Key feedback included the need to help habitualise program strategies and guide consumers in applying them in emotionally salient situations. Findings from phases 2 and 3 indicated consumer support for the program strategies and materials but highlighted the need to further enhance the personal relevance of specific content and journal activities. Findings from phase 4 provided overall clinical support for the revised program but indicated an opportunity to minimise unintended effects. We present the intervention materials for the revised program, Goal Management Training+ (GMT+), in line with TIDieR guidelines. Conclusions GMT+ targets tailored cognitive processes, includes reimagined materials and activities, and is sensitive to the clinical needs of people with MUD. Our intervention development process was important for informing the training components, design and intervention materials, and indicating initial acceptability prior to conducting a clinical trial.