Dr Rebecca McDonald is a Research Associate based at the National Addictions Centre (NAC) at King’s College London. She is currently the international coordinating investigator for NalPORS, a large cohort study (n=6,000) of take-home naloxone provision in six European countries. Her research focuses on improving access to medications for opioid use disorder, including naloxone for emergency treatment of overdose. Dr McDonald is also the lead researcher of a UK-based study of substance use during the COVID-19 pandemic. She previously worked as a consultant for the United Nations Office on Drugs and Crime and the New York City Department of Health.