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Improved survival of patients with myelofibrosis in the last decade: Single-center experience
Lucia Masarova1, Prithviraj Bose1, Naveen Pemmaraju1
1Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Background:
The management of myelofibrosis (MF) has changed over the last several years and could have an impact on patient outcome. This study evaluates the survival of patients with MF at the authors' institution to determine whether it changed in the last decade.
Methods:
This retrospective study consists of 844 patients (64% male; median age, 66 years; range, 20-90 years) who were examined between 2000 and 2020 with a new diagnosis of MF. Only patients with available marrow biopsy who had reticulin fibrosis of grade 2 or higher were included. Patients were compared by year of presentation: 2000-2010 (n = 373) and 2011-2020 (n = 471).
Results:
A statistically significant improvement in median survival in the last decade was noted: from 48 months (95% CI, 42-54 months) to 63 months (95% CI, 55-71 months) (P < .001; HR, 0.78 [95% CI, 0.64-0.95]). Improved survival was observed also in patients 65 years old or older and those having intermediate 2 or high-risk Dynamic International Prognostic Scoring System (DIPSS) or DIPSS-Plus risk scores. Among 532 patients treated with MF-directed therapy, patients exposed to JAK inhibitor ruxolitinib had superior outcomes with median overall survival of 84 months (95% CI, 70-94 months).
Conclusions:
The results demonstrate that survival of patients with MF has improved in the last decade. This improvement is likely due to increased disease awareness, advances in supportive care, and the development of effective treatments.
