PURPOSE: The purpose of this paper is to explore what happens when changes to clinical practice are proposed and introduced in healthcare organisations. The authors use the implementation of Treatment Escalation Plans to explore the dynamics shaping the translational journey of a complex intervention from research into the everyday context of real-world healthcare settings. DESIGN/METHODOLOGY/APPROACH: A qualitative instrumental collective case study design was used. Data were gathered using qualitative interviews (n = 36) and observations (n = 46) in three English acute hospital trusts. Normalisation process theory provided the theoretical lens and informed data collection and analysis. FINDINGS: While each organisation faced the same translational problem, there was variation between settings regarding adoption and implementation. Successful change was dependent on participants' ability to manage and shape contexts and the work this involved was reliant on individual capacity to create a new, receptive context for change. Managing contexts to facilitate the move from research into clinical practice was a complex interactive and iterative process. PRACTICAL IMPLICATIONS: The paper advocates a move away from contextual factors influencing change and adoption, to contextual patterns and processes that accommodate different elements of whole systems and the work required to manage and shape them. ORIGINALITY/VALUE: The paper addresses important and timely issues of change in healthcare, particularly for new regulatory and service-oriented processes and practices. Insights and explanations of variations in implementation are revealed which could contribute to conceptual generalisation of context and implementation.