Authors’ information
SD
KM is a DPhil candidate at the University of Oxford investigating how progression criteria are used to inform decisions around progression of external randomised pilot trials to future definitive randomised controlled trials. SD is a senior trial statistician with expertise in statistics and clinical trial methodology. SH is a senior trial methodologist with expertise in the design, conduct and transparent reporting of randomised trials and systematic reviews. KM and SH contribute to a Pilot and Feasibility Studies working group.