Survival following allogeneic transplant in patients with myelofibrosis.

Abstract

Allogeneic hematopoietic cell transplantation (HCT) is the only curative therapy for myelofibrosis (MF). In this large multicenter retrospective study, overall survival (OS) in MF patients treated with allogeneic HCT (551 patients) and without HCT (non-HCT) (1377 patients) was analyzed with Cox proportional hazards model. Survival analysis stratified by the Dynamic International Prognostic Scoring System (DIPSS) revealed that the first year of treatment arm assignment, due to upfront risk of transplant-related mortality (TRM), HCT was associated with inferior OS compared with non-HCT (non-HCT vs HCT: DIPSS intermediate 1 [Int-1]: hazard ratio [HR] = 0.26, P < .0001; DIPSS-Int-2 and higher: HR, 0.39, P < .0001). Similarly, in the DIPSS low-risk MF group, due to upfront TRM risk, OS was superior with non-HCT therapies compared with HCT in the first-year post treatment arm assignment (HR, 0.16, P = .006). However, after 1 year, OS was not significantly different (HR, 1.38, P = .451). Beyond 1 year of treatment arm assignment, an OS advantage with HCT therapy in Int-1 and higher DIPSS score patients was observed (non-HCT vs HCT: DIPSS-Int-1: HR, 2.64, P < .0001; DIPSS-Int-2 and higher: HR, 2.55, P < .0001). In conclusion, long-term OS advantage with HCT was observed for patients with Int-1 or higher risk MF, but at the cost of early TRM. The magnitude of OS benefit with HCT increased as DIPSS risk score increased and became apparent with longer follow-up.

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Published Version (Please cite this version)

10.1182/bloodadvances.2019001084

Publication Info

Gowin, Krisstina, Karen Ballen, Kwang Woo Ahn, Zhen-Huan Hu, Haris Ali, Murat O Arcasoy, Rebecca Devlin, Maria Coakley, et al. (2020). Survival following allogeneic transplant in patients with myelofibrosis. Blood advances, 4(9). pp. 1965–1973. 10.1182/bloodadvances.2019001084 Retrieved from https://hdl.handle.net/10161/20749.

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Scholars@Duke

Arcasoy

Murat Osman Arcasoy

Professor of Medicine

Dr. Arcasoy's research interests include 1)The role of cytokines and cytokine receptors in hematopoietic commitment and lineage-specific differentiation 2) Mechanisms of tissue-specific expression of erythropoietin receptor (EPOR) gene and its role in lineage commitment and lineage-specific differentiation 3) Studies of the molecular basis of familial and congenital myeloproliferative disorders.4). Isolation of novel hematopoietic cytokine-responsive genes and study of their function and regulation 5). Characterization of novel non-hematopoietic functions of EPOR signaling

Dr. Arcasoy's laboratory has been studying the expression, regulation and function of the EPOR gene focusing on the function of naturally occurring mutations of the EPOR gene that result in primary familial and congenital polycythemia as well as the non-hematopoietic expression and functions of EPOR in vascular endothelium, macrophages, cardiac myocytes and cancer cells. We have also been studying global gene expression in erythroid cells from patients with polycythemia vera to better characterize the molecular signature of the disorder and develop new diagnostic tools.


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