Understanding the processes underpinning IMPlementing IMProved Asthma self-management as RouTine (IMP 2 ART) in primary care: study protocol for a process evaluation within a cluster randomised controlled implementation trial.

This mixed-methods, theoretically informed, process evaluation seeks to provide insights into the delivery and response to a whole-systems approach to the implementation of supported self-management in asthma care in primary care. It is underway at a time of significant change in primary care in the UK. The methods have, therefore, been developed to be adaptable to this changing context and to capture the impact of these changes on the delivery and response to research and implementation processes.