Application of apatinib after multifaceted therapies for metastatic breast cancer

Jue Wang1, Yangyang Chen1, Renwang Chen1

  • 1Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Abstract

Insights

Apatinib demonstrated efficacy in patients with metastatic breast cancer (MBC) resistant to prior treatments. This oral tyrosine kinase inhibitor showed manageable toxicity and a notable disease control rate in the studied population.

Area of Science:

  • Oncology
  • Pharmacology
  • Clinical Trials

Background:

  • Apatinib is an oral small molecule tyrosine kinase inhibitor targeting VEGFR-2.
  • Investigated apatinib's efficacy and toxicity in metastatic breast cancer (MBC) patients with prior treatment failure.

Purpose of the Study:

  • To evaluate apatinib's effectiveness and safety in refractory MBC patients.
  • To determine progression-free survival (PFS), objective response rate (ORR), and disease control rate (DCR).

Main Methods:

  • 61 MBC patients unresponsive to prior chemotherapy were enrolled.
  • Treatment involved apatinib monotherapy or combination therapy at varying doses.
  • Outcome measures included PFS, ORR, DCR, and toxicity assessment.

Main Results:

  • Disease control rate (DCR) was 72.1% (44/61), with an objective response rate (ORR) of 23.0% (14/61).
  • Median PFS was 4 months and 15 days for patients achieving partial response or stable disease.
  • Apatinib showed potential benefit in patients with intracranial metastases and wild-type P53.
  • Hypertension emerged as an independent prognostic factor for better DCR.

Conclusions:

  • Apatinib exhibits favorable efficacy in MBC patients resistant to multifaceted therapy.
  • The treatment is associated with manageable toxicity profiles.
  • Further research into P53 mutations and hypertension as prognostic factors is warranted.

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