Transfusion Independence Achieved with Combination Fedratinib and Luspatercept in an Elderly Man with Heavily Pretreated Intermediate-2 Risk Primary Myelofibrosis

Author:

Yun Nicole K.ORCID,Alrifai Taha,Miller Ira J.,Shammo Jamile M.

Abstract

Myelofibrosis (MF)-associated anemia and transfusion dependency are associated with inferior quality of life and poor prognosis. JAK2 inhibitors and TGF-β superfamily ligand traps are being explored as treatment options for MF-associated anemia. Here, we present the case of a 66-year-old man with heavily pretreated intermediate-2 (INT-2) risk primary MF who had an exceptional response to combination fedratinib and luspatercept therapy. He achieved transfusion independence and experienced a reduction in spleen size from 20 cm to 12 cm, with remarkable improvement in performance status. Compared with other JAK inhibitors, the mechanism of action of fedratinib may explain its milder effect on anemia. It is possible that the addition of luspatercept may result in an additive or synergistic effect of one or both medications. Although the exact biological pathways have not yet been elucidated, combination fedratinib and luspatercept nevertheless is a promising therapy for anemia in patients with transfusion-dependent INT-2 risk MF.

Publisher

S. Karger AG

Subject

Oncology

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