Dr Robert Twycross is one of the pioneers of modern hospice and palliative medicine. In the early 1970s he worked with Cicely Saunders at St Christopher's Hospice in London and conducted several Controlled Trials of morphine and other strong opioids in cancer pain management. In 1976 he was appointed Consultant in Palliative Medicine at Sir Michael Sobell House, Churchill Hospital, Oxford; and from 1988–2001 was Clinical Reader (Associate Professor) in Palliative Medicine, Oxford University.
From 1988–2005 Robert was Head of the World Health Organization Collaborating Centre for Palliative Care. He has taught in over 40 countries, has written numerous articles, and is co-author of several widely acclaimed textbooks, notably Palliative Care Formulary (6th edition 2017) and Introducing Palliative Care (6th edition 2021).