Professor Jonathan Ledermann is a Consultant Medical Oncologist specializing in the treatment of gynaecological and colorectal cancers. He is the clinical research lead for gynaecological cancers and head of the UCL Cancer Trials Centre, which is one of the NCRI-accredited national cancer trials centres funded by Cancer Research UK. Professor Ledermann graduated in medicine from UCL and UCH Medical School and subsequently trained in medical oncology at UCH, Charing Cross London, and Princess Margaret Toronto. He has developed and led several national and international trials in gynaecological cancer and currently leads two trials with novel drugs in ovarian cancer. He is a member of the NCRI clinical studies group for gynaecological cancers and one of the UK representatives on the GCIG (Gynaecological Cancer InterGroup). Professor Ledermann has numerous publications in the field of ovarian and colorectal cancer, serves on editorial boards for professional journals, and is a medical advisor to several pharmaceutical companies. His areas of expertise include the treatment of gynaecological and colorectal cancers, ovarian cancer (chemotherapy), gynaecological oncology, and colorectal cancers.