UK Clinical Trial applications by Phase

The MHRA data for clinical trial applications by phase is a good proxy for clinical trial activity in the UK. Looking at the period as a whole (2007-2016) for commercially sponsored applications, there is a decline in Phase I and no growth in Phase IV applications. However, between 2011 and 2016, applications for Phase II and III trials grew by 5.5%, with the number of applications in 2014 surpassing the number seen in 2007

CLINICAL TRIALS - A REPORT FROM THE MINISTERIAL INDUSTRY STRATEGY GROUP CLINICAL RESEARCH WORKING GROUP last accessed April 2018 and MHRA Clinical trials for medicines: authorisation assessment performance last accessed August 2018