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Tagraxofusp in myeloid malignancies.

Antonella Bruzzese1, Enrica Antonia Martino1, Caterina Labanca1

  • 1Hematology Unit, Azienda Ospedaliera Annunziata, Cosenza, Italy.

Hematological Oncology
|October 17, 2023
PubMed
Summary

Tagraxofusp effectively treats blastic plasmacytoid dendritic cell neoplasm (BPDCN) and is being explored for other CD123-positive myeloid malignancies. Combination therapies may overcome resistance by targeting DPH1 expression.

Keywords:
AMLBPDCNCD123myeloid malignanciestagraxofusp

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Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Tagraxofusp, a fusion protein targeting CD123, shows promise in treating aggressive myeloid malignancies.
  • Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is often refractory to conventional chemotherapy.

Purpose of the Study:

  • To review the role of tagraxofusp in BPDCN and other CD123-positive myeloid malignancies.
  • To explore combination strategies and resistance mechanisms for tagraxofusp therapy.

Main Methods:

  • Review of clinical studies and research on tagraxofusp.
  • Analysis of tagraxofusp's mechanism of action and resistance pathways.
  • Investigation of combination therapies, including tagraxofusp with azacitidine and venetoclax.

Main Results:

  • Tagraxofusp demonstrated high efficacy and an acceptable safety profile in BPDCN, leading to regulatory approvals.
  • Tagraxofusp is being investigated in other CD123-positive myeloid malignancies, with combination strategies showing particular interest.
  • Azacitidine can reverse DPH1 downregulation, potentially overcoming tagraxofusp resistance.

Conclusions:

  • Tagraxofusp is a successful therapeutic agent for BPDCN and holds potential for other CD123-positive myeloid neoplasms.
  • Combination therapies are crucial for expanding tagraxofusp's utility and managing resistance.
  • Ongoing trials are evaluating tagraxofusp in various myeloid malignancies.