Summary
The entity “myelofibrosis” represents a subgroup of the Philadelphia chromosome-negative myeloproliferative neoplasms. It comprises primary myelofibrosis, post-polycythemia vera myelofibrosis and post-essential thrombocythemia myelofibrosis. This heterogeneous disease is characterized by clonal myeloproliferation, dysregulated kinase signalling and the abnormal expression of several proinflammatory cytokines. Clinically, patients present with symptoms related to thrombocytosis/leukocytosis, anemia and/or progressive splenomegaly. Mutations in Janus kinase 2, an enzyme that is essential for the normal development of erythrocytes, granulocytes, and platelets, notably the V617F mutation, have been identified in approximately 60% of patients with primary myelofibrosis. Recent molecular advances have not only elucidated critical pathways in the pathogenesis of the disease, but also contributed to a more precise assessment of a patient’s individual risk. While allogeneic stem cell transplantation remains the only curative treatment, the natural course of the disease and the patient’s survival and quality of life may be improved by new treatments, notably ruxolitinib, the first Janus kinase 1/2 inhibitor approved for the management of myelofibrosis. Additional treatment options are being explored.
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The development of these recommendations was supported by Novartis Pharma GmbH, Austria including funding of a medical writer. The authors did not receive financial compensation from Novartis Pharma GmbH for authoring the manuscript.
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The following authors declare that they have served as consultants or received financial support for performing a research project of industrial companies: S. Burgstaller: Novartis, AOP Orphan, Celgene; K. Geissler: Novartis; A. Lang: Novartis; A. Petzer: Novartis; A. Wölfler: Novartis; H. Gisslinger: Novartis, AOP Orphan, Baxalta, Celgene. T. Sliwa, C. Beham-Schmid, V. Buxhofer-Ausch, G. Gastl, M. Krauth, P. Krippl and S. Wöhrer declare that they have no competing interests.
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Sliwa, T., Beham-Schmid, C., Burgstaller, S. et al. Austrian recommendations for the management of primary myelofibrosis, post-polycythemia vera myelofibrosis and post-essential thrombocythemia myelofibrosis: an expert statement. Wien Klin Wochenschr 129, 293–302 (2017). https://doi.org/10.1007/s00508-016-1120-8
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DOI: https://doi.org/10.1007/s00508-016-1120-8