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Is it time to reconsider initial treatment choice for your myelofibrosis patients?
A serious disease requires rapid action
- Approximately half of myelofibrosis patients die within 2-4 years and symptoms can be devastating[1]
- Watchful waiting can be detrimental to survival, even in intermediate-risk patients[1]
- Only JAKAVI offers significant spleen reduction, superior symptom control, and up to a 65% reduction in risk of death at 5 years compared with best available therapy (BAT)[2],[3]*
Results from an exploratory analysis of pooled data from 528 patients in the COMFORT-I and COMFORT-II trials. Seventy percent of patients in the control group crossed over to JAKAVI during the study. The control group in COMFORT-I received placebo. The control group in COMFORT-II received BAT; the three most common were hydroxyurea (47%), no medication (33%), and prednisone/prednisolone (12%). The crossover-corrected treatment effect was estimated using a rank-preserving structural failure time (RPSFT) method and through censorship of survival time at time of crossover.
How do survival outcomes in MF compare with other more timely treated malignancies?[4],[5]
5-year survival rates in select cancers
Early treatment with the maximum tolerated dose of JAKAVI offers your MF patients their best chance at extended survival[6]
Myelofibrosis is aggressive, yet historically has been treated conservatively
Overall survival (OS) is poor, regardless of risk group[1]
Approximately half of patients with myelofibrosis survive beyond 4 years and even lower-risk patients have significantly reduced survival[1]
Survival rates of low-risk myelofibrosis patients compared to the general population
ALL, acute lymphoblastic leukaemia; AML, acute myeloid leukaemia; CLL; chronic lymphocytic
leukaemia; MPN, myeloproliferative neoplasm; NHL, non-Hodgkin lymphoma; SEER, Surveillance,
Epidemiology, and End Results.
*In a real-world analysis of 428 MF patients from academic centers in Italy and the Mayo Clinic, the 5-year survival rate was approximately 60.0%.
†The overall median survival is based on an analysis of 1054 patients with primary MF from seven institutions in both the US and Europe, while the 5-year survival rate presented in the graph is based on an analysis of 20,250 patients with MPNs from the US National Cancer Institute SEER registries database.
References
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Cervantes F, Dupriez B, Pereira A, et al. New prognostic scoring system for primary myelofibrosis based on a study of the International Working Group for Myelofibrosis Research and Treatment. Blood. 2009;113(13):2895-2901.
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Harrison C, Kiladjian J-J, Al-Ali HK, et al. JAK inhibition with ruxolitinib versus best available therapy for myelofibrosis. N Engl J Med. 2012;366(9):787-798.
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Verstovsek S, Gotlib J, Mesa RA, et al. Long-term survival in patients treated with ruxolitinib for myelofibrosis: COMFORT-I and -II pooled analyses. J Hematol Oncol. 2017;10(1):156.
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National Cancer Institute. SEER cancer stat fact sheets. http://seer.cancer.gov/statfacts/. Accessed June 22, 2021.
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Brunner AM, Hobbs G, Jalbut MM, Neuberg DS, Fathi AT. A population-based analysis of second malignancies among patients with myeloproliferative neoplasms in the SEER database. Leuk Lymph. 2016;57(5):1197-1200.
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Harrison CN, Vannucchi AM, Kiladjian JJ, et al. Long-term findings from COMFORT-II, a phase 3 study of ruxolitinib vs best available therapy for myelofibrosis. Leukemia. 2016;30(8):1701-1707.