Luspatercept for β-thalassemia: beyond red blood cell transfusions

Expert Opin Biol Ther. 2021 Nov;21(11):1363-1371. doi: 10.1080/14712598.2021.1968825. Epub 2021 Aug 23.

Abstract

Introduction: Red blood cell transfusions and iron chelation therapy are the cornerstone of treatment for β-thalassemia, with allogeneic hematopoietic stem cell transplantation and gene therapy offering further disease-management options for eligible patients. With up to 90% of severe cases of β-thalassemia occurring in resource-constrained countries, and estimates indicating that 22,500 deaths occur annually as a direct consequence of undertransfusion, provision of adequate treatment remains a major issue.

Areas covered: In this review, we provide an overview of luspatercept, a first-in-class erythroid maturation agent, and present the available clinical data related to the treatment of β-thalassemia.

Expert opinion: The recent approval of luspatercept offers a new, long-term therapeutic option for adult patients with transfusion-dependent β-thalassemia to reduce red blood cell transfusion burden, anemia, and iron overload.

Keywords: Anemia; beta-thalassemia; iron overload; luspatercept; red blood cell; transfusions.

Publication types

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

MeSH terms

  • Activin Receptors, Type II
  • Erythrocyte Transfusion*
  • Humans
  • Immunoglobulin Fc Fragments
  • Recombinant Fusion Proteins
  • beta-Thalassemia* / therapy

Substances

  • Immunoglobulin Fc Fragments
  • Recombinant Fusion Proteins
  • luspatercept
  • Activin Receptors, Type II