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Luspatercept, sold under the brand name Reblozyl, is a medication used for the treatment of anemia in beta thalassemia and myelodysplastic syndromes. [ 5 ] The US Food and Drug Administration (FDA) considers it to be a first-in-class medication .
Luspatercept was shown to decrease the need for transfusions and this effect lasted for a median of 30.6 weeks. [ 51 ] [ 36 ] [ 52 ] HLA -matched allogeneic stem cell transplantation , particularly in younger (i.e. less than 40 years of age) and more severely affected patients, offers the potential for curative therapy.
Prefibrotic primary myelofibrosis (Pre-PMF) is a rare blood cancer, classified by the World Health Organization as a distinct type of myeloproliferative neoplasm in 2016. [1] The disease is progressive to overt primary myelofibrosis , though the rate of progression is variable and not all patients progress.
Primary myelofibrosis (PMF) is a rare bone marrow blood cancer. [1] It is classified by the World Health Organization (WHO) as a type of myeloproliferative neoplasm, a group of cancers in which there is activation and growth of mutated cells in the bone marrow.
Luspatercept (ACE-536) is a recombinant fusion protein that is used as a treatment in adults with transfusion dependent beta thalassemia. It consists of a modified extra-cellular domain of human activin receptor type IIB bound to the Fc portion of the human IgG1 antibody. [ 8 ]
Myeloproliferative neoplasms (MPNs) are a group of rare blood cancers in which excess red blood cells, white blood cells or platelets are produced in the bone marrow. Myelo refers to the bone marrow, proliferative describes the rapid growth of blood cells and neoplasm describes that growth as abnormal and uncontrolled.
Myelophthisis can occur in the setting of chronic myeloproliferative disease (e.g. myelofibrosis), leukemia, lymphoma, and metastatic carcinoma or myeloma. It is common in people who have chronic idiopathic myelofibrosis. It has been linked to small-cell lung cancer, breast cancer or prostate cancer that metastasizes to the bone marrow. [2]
Hydroxyurea treated patients had a lower incidence of arterial thrombosis, lower incidence of severe bleeding and lower incidence of transformation to myelofibrosis, but the risk of venous thrombosis was higher with hydroxycarbamide than with anagrelide. It is unknown whether the results are applicable to all ET patients.