Emerging agents and regimens for myeloproliferative neoplasms: updates from ASH 2025 Annual Meeting

Current Myeloproliferative neoplasm (MPN) therapies provide meaningful symptom and event-risk control but are limited by infrequent molecular remissions, treatment-limiting cytopenias (particularly anemia), and continued reliance on non-mutation-directed cytoreduction or phlebotomy with attendant morbidity. At ASH 2025 Annual Meeting, multiple investigational strategies aimed to address these limitations, including clone-directed targeting (INCA033989), phlebotomy-sparing physiologic therapy (rusfertide), and epigenetic disease-modifying combinations (pelabresib). We summarized the latest updates on these emerging agents and regimens for MPNs from the 2025 ASH Annual Meeting.