The ExeCTU collaborates with healthcare researchers to design and deliver important health-related studies. The University of Exeter Clinical Trials Unit (ExeCTU) has been instrumental in facilitating three major trials into COVID-19 in the past year. On this year’s International Clinical Trials Day, we are marking the outstanding contribution the ExeCTU has made in advancing crucial research that builds understanding of improving treatment and care in the face of the pandemic. The ExeCTU collaborates with healthcare researchers, locally, nationally and internationally, to design and deliver important health-related studies, ensuring clinical research is of the highest quality. Since its inception in 2015, ExeCTU has been actively involved in 30 studies.