Diabetes is a long term condition in which there are significant ethnic and social disparities in prevalence and outcomes. There is huge scope to reduce diabetes inequalities and the complex nature of the condition means a comprehensive and sustained approach that tackles the wider determinants for causes, management and complications is required (Harwood and Tipene-Leach, 2007). We propose to test Mana Tu – a programme co-designed with whanau, clinicians, health service planners and whanau ora providers to improve the impact of clinical and lifestyle interventions for whanau living with prediabetes and people with poorly controlled diabetes. Mana Tu deploys skilled and supported Kaimanaaki-whanau (KMs) in practices. The KMs use a mana whanau approach and work with General Practice teams while being operationally supported by central hub. The hub will co-ordinate broader community and social service support systems for whanau provide training, programme design, and support within a rich data environment.