
Myeloproliferative neoplasms, including polycythaemia vera, essential thrombocythaemia, and myelofibrosis, are driven by clonal haematopoietic expansion, frequently harbouring JAK2, CALR, or MPL mutations. JAK1/2 inhibitors including ruxolitinib, fedratinib, and pacritinib have transformed the management of myelofibrosis. Disease modification, reduction of transformation risk, and improving overall survival remain unmet goals.
