Treatment of patients with primary myelofibrosis using dasatinib

Q-L Song1, B Zhang, Y Xu

  • 1Department of Hematology, the People's Hospital of Jiaozuo City, Jiaozuo, Henan Province, China. cnqinglinsong@126.com.

Abstract

Insights

Dasatinib, a tyrosine kinase inhibitor, shows promise for treating primary myelofibrosis (PMF). This study found dasatinib improved symptoms and quality of life in PMF patients with manageable side effects.

Area of Science:

  • Hematology
  • Oncology
  • Pharmacology

Background:

  • Primary myelofibrosis (PMF) is a serious chronic cancer of the bone marrow with a poor prognosis.
  • Current treatments for PMF lack targeted therapies, highlighting an unmet medical need.
  • The median survival for PMF patients is approximately five years.

Purpose of the Study:

  • To evaluate the efficacy and safety of dasatinib, a second-generation tyrosine kinase inhibitor, in patients with PMF.
  • To assess the impact of dasatinib on clinical symptoms, bone marrow histology, and overall quality of life in PMF.

Main Methods:

  • A trial involving six PMF patients was conducted from June 1, 2015, to February 29, 2016.
  • Dasatinib was administered at an initial dose of 100 mg/d (50 mg twice daily), with dose adjustments based on tolerance and adverse events.
  • Dosage modifications included reductions to 70 or 50 mg/d for adverse events and increases to 140 mg/d for well-tolerated cases.

Main Results:

  • Five out of six patients experienced symptomatic improvement.
  • Two patients achieved bone marrow histologic remission.
  • One patient maintained a stable condition, and no severe adverse events were reported.

Conclusions:

  • Dasatinib treatment demonstrated potential benefits for PMF patients.
  • Significant improvements were observed in splenomegaly, clinical symptoms, physical condition, and quality of life.
  • Dasatinib is considered an effective therapeutic option for primary myelofibrosis.

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