Naslov
Splenomegaly in myelofibrosis - new options for therapy and the therapeutic potential of Janus kinase 2 inhibitors

Autori
Randhawa, Jasleen ; Ostojić, Alen ; Vrhovac, Radovan ; Atallah, Ehab ; Verstovšek, Srđan

Izvornik
Journal of Hematology & Oncology (1756-8722) 5 (2012), 1; 43-49

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, pregledni rad, znanstveni

Ključne riječi
JAK2 inhibitor; myeloproliferative neoplasms; myelofibrosis; JAK2V617F mutation; splenomegaly
(JAK2 inhibitor; myeloproliferative neoplasms; myelofibrosis; JAK2V617F mutation; sSplenomegaly)

Sažetak
Splenomegaly is a common sign of primary myelofibrosis (PMF), post-polycythemia vera myelofibrosis (post-PV MF), and post-essential thrombocythemia myelofibrosis (post-ET MF) that is associated with bothersome symptoms, which have a significant negative impact on patients' quality of life. It may also be present in patients with advanced polycythemia vera (PV) or essential thrombocythemia (ET). Until recently, none of the therapies used to treat MF were particularly effective in reducing splenomegaly. The discovery of an activating Janus kinase 2 (JAK2) activating mutation (JAK2V617F) that is present in almost all patients with PV and in about 50-60 % of patients with ET and PMF led to the initiation of several trials investigating the clinical effectiveness of various JAK2 (or JAK1/JAK2) inhibitors for the treatment of patients with ET, PV, and MF. Some of these trials have documented significant clinical benefit of JAK inhibitors, particularly in terms of regression of splenomegaly. In November 2011, the US Food and Drug Administration approved the use of the JAK1- and JAK2-selective inhibitor ruxolitinib for the treatment of patients with intermediate or high-risk myelofibrosis, including PMF, post-PV MF, and post-ET MF. This review discusses current therapeutic options for splenomegaly associated with primary or secondary MF and the treatment potential of the JAK inhibitors in this setting.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA