Luspatercept

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Luspatercept (Reblozyl®) – Overview

Luspatercept is a first-in-class erythroid maturation agent approved for the treatment of anemia in adults with:

• Beta thalassemia who require regular red blood cell (RBC) transfusions.

• Myelodysplastic syndromes (MDS) with ring sideroblasts (MDS-RS) or SF3B1 mutation, who require transfusions.

Mechanism of Action

Luspatercept works by binding to select TGF-β superfamily ligands, inhibiting aberrant Smad2/3 signaling in late-stage RBC precursors. This promotes RBC maturation, reducing transfusion dependence in eligible patients.

Administration & Dosage

• Administered as a subcutaneous injection every 3 weeks.

• Dosage is adjusted based on hemoglobin levels and transfusion needs.

Key Benefits

• Reduces transfusion burden in thalassemia and MDS patients.

• Improves quality of life by managing chronic anemia.

Common Side Effects

Fatigue, headache, bone pain, dizziness, and hypertension. Regular monitoring is recommended.

FDA & EMA Approval

Approved by the FDA (2019) and EMA (2020) for specified indications.

For more details, consult a hematologist to determine eligibility.