Integrating health and social care is priority in England, although there is little evidence that previous iniciatives have reduce hospitals admissions or costs. Twenty-five Integrated Care Pioneers have been established to drive change “at scale and place”. The early phases of their evaluation (April 2014-June 2016) aimed to identify their objetives, plans ans activities, and to assess the extend to which they have overcome barriers to integration. In the longer-term, we will assess whether integrated care leads to improved outcomes and quality of care and at what cost.