The Christie NHS Foundation Trust - Department of Medical Oncology, Clatterbridge Cancer Centre, Imperial College London - Hammersmith Hospital, Department of Cancer Medicine, Guy's & St. Thomas’ NHS Foundation Trust - Guy’s Cancer, University Hospitals Birmingham NHS Foundation Trust, University of Nottingham, University Hospitals Bristol - Bristol Haematology and Oncology Centre, Government of the United Kingdom - Royal Free London NHS Foundation Trust, Weston Park Cancer Centre, Government of the United Kingdom - Oxford University Hospitals NHS Foundation Trust, Leeds Teaching Hospitals NHS Trust, Hull University Teaching Hospitals NHS Trust, University of Southampton - University Hospital Southampton NHS Foundation Trust, Maidstone and Tunbridge Wells NHS Trust - Kent Oncology Centre, Government of the United Kingdom - Great Western Hospitals, University of Manchester - Manchester Clinical Trials Unit, University of Manchester - Manchester Clinical Trials Unit, Hampshire Hospitals NHS Foundation Trust, University of Manchester - Department of Health Economics, University College London - UCL Cancer Institute, The Christie NHS Foundation Trust - Department of Medical Oncology and Independent