Polycythemia vera disease burden: contributing factors, impact on quality of life, and emerging treatment options

Ann Hematol. 2014 Dec;93(12):1965-76. doi: 10.1007/s00277-014-2205-y. Epub 2014 Oct 2.

Abstract

Polycythemia vera (PV) is a chronic myeloproliferative neoplasm characterized by clonal expansion of a hematopoietic progenitor, erythrocytosis, often leukocytosis and/or thrombocytosis, and nearly always an activating mutation in Janus kinase 2 (JAK2). The PV symptom burden can be considerable, in part driven by small or large vessel thrombotic tendency, splenomegaly, fatigue, pruritus, and a chronic risk of disease transformation to myelofibrosis or acute myeloid leukemia. In addition, patients with PV have an increased risk of mortality compared with the general population that often results from cardiovascular complications or disease transformation. Further, healthcare utilization and costs are higher in patients with PV than noncancer controls. First-line therapy options for high-risk patients may effectively manage PV in some instances; however, some patients do not receive adequate benefit from current treatment options and experience a more severe disease burden as a result. This may be especially true for those patients who are resistant to or intolerant of hydroxyurea or interferon-based therapies. New treatments currently being investigated in phase 3 clinical trials may alleviate disease burden in this patient population.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Clinical Trials, Phase III as Topic
  • Combined Modality Therapy
  • Cost of Illness
  • Disease Progression
  • Fatigue / etiology
  • Health Care Costs
  • Hemorrhagic Disorders / etiology
  • Humans
  • Hydroxyurea / therapeutic use
  • Interferons / therapeutic use
  • Janus Kinase 2 / genetics
  • Leukemia, Myeloid, Acute / etiology
  • Mutation, Missense
  • Neoplasms, Second Primary / etiology
  • Neoplasms, Second Primary / mortality
  • Nitriles
  • Pipobroman / therapeutic use
  • Polycythemia Vera* / complications
  • Polycythemia Vera* / diagnosis
  • Polycythemia Vera* / drug therapy
  • Polycythemia Vera* / economics
  • Polycythemia Vera* / epidemiology
  • Polycythemia Vera* / genetics
  • Primary Myelofibrosis / etiology
  • Protein Kinase Inhibitors / therapeutic use
  • Pyrazoles / therapeutic use
  • Pyrimidines
  • Quality of Life
  • Therapies, Investigational
  • Thrombophilia / etiology

Substances

  • Nitriles
  • Protein Kinase Inhibitors
  • Pyrazoles
  • Pyrimidines
  • Pipobroman
  • ruxolitinib
  • Interferons
  • JAK2 protein, human
  • Janus Kinase 2
  • Hydroxyurea