'We all want to succeed, but we've also got to be realistic about what is happening' : An ethnographic study of relationships in trial oversight and their impact

Funding This work was funded by the Medical Research Council (MRC) Network of Hubs for Trials Methodology Research (HTMR) (MR/L004933/1-R34) and undertaken with the support of the MRC ConDuCT Hub (Collaboration and innovation in Difficult or complex randomised Controlled Trials – G0800800). Availability of data and materials The datasets generated and analysed during the current study are not publicly available due to the nature of the consent provided by participants, but anonymised data are available from the corresponding author on reasonable request.Peer reviewedPublisher PD