Acceptability, fidelity and implementation of systematic integrated pain management in Oncology Outpatient Services:A Process evaluation protocol for a multi-centre clustered randomised pilot trial

In the United Kingdom (UK) National Health Service (NHS), most people with cancer are cared for at oncology outpatient services, where there are no standardised procedures for managing pain. As a result, cancer patients may receive inadequate care for pain. The Cancer Pain-assessment Toolkit for Use in RoutinE oncology outpatient services (CAPTURE) aims to assess the feasibility of conducting a multi-centre cluster-randomised trial of a systematic pain assessment and management programme integrated within routine care at UK NHS oncology outpatient services. This protocol describes an embedded process evaluation that aims to evaluate the acceptability, fidelity and implementation of the intervention and trial procedures.