Diarmaid McDonald is Executive Director at Just Treatment, a patient-led campaign group based in the UK. Diarmaid has worked on access to medicines and health for nearly two decades, including many years focused on the global AIDS response and four years as NGO rep on the board of Unitaid. He started Just Treatment in 2017 to help NHS patients whose lives were being put at risk by the business models of corporations including big pharma. Just Treatment has fought multiple successful patient-led campaigns around access to cancer, cystic fibrosis, and hepatitis treatment, as well as wider campaigns to win health justice.