The study is observational multicenter retrospective and prospective cohort study of patients with primary or secondary myelofibrosis who have initiated therapy with ruxolitinib, prescribed as part of the normal course of care and completely independent of study participation. The primary purpose is to determine the impact of clinical and laboratory characteristics of myelofibrosis on the prognosis of patients treated with ruxolitinib, understood as long-term survival.
Age ≥ 18 years
Patients diagnosed with Primary Myelofibrosis or secondary to Essential Thrombocythemia/Polycythemia vera who are being treated or have been treated with ruxolitinib therapy in accordance with normal clinical practice.
Availability of data on clinical history prior to initiation of Ruxolitinib therapy
Obtaining informed consent for data collection and processing
None