Mary Frances McMullin, MD, Queen’s University Belfast, Belfast, UK, highlights the ropeginterferon alfa-2b treatment for polycythemia vera (PV) clinical trial data she is expecting to be presented at the American Society of Hematology (ASH) Annual Meeting and Exposition 2019. Prof. McMullin discusses the myeloproliferative neoplasms (MPNs) education session on diagnostic workflow for hereditary erythrocytosis and thrombocytosis. This interview took place at the Myeloproliferative Neoplasms Advances Day 2019 in London, UK.