Journal of Practical Oncology ›› 2021, Vol. 35 ›› Issue (3): 287-290.doi: 10.11904/j.issn.1002-3070.2021.03.018

• Review • Previous Articles    

Research progress of CDK4/6 inhibitors combined with endocrine therapy for advanced breast cancer

TI Qian, ZHANG Qingyuan   

  1. Department of Hematologic Lymphoma,Harbin Medical University Cancer Hospital,Harbin 150081,China
  • Received:2020-08-23 Revised:2020-10-19 Online:2021-06-28 Published:2021-06-22

Abstract: Endocrine therapy is the main treatment method for patients with hormone receptor positive(HR+)advanced breast cancer due to its remarkable curative effect and safety.In recent years,the field of endocrinology has developed rapidly.How to delay or reverse endocrine resistance and new endocrine therapy drugs have become the focus of clinical research.Studies have found that endocrine therapy resistance may be related to the CDK-RB-E2F pathway.It has been found that endocrine therapy resistance may be related to the CDK-RB-E2F pathway.Cyclin-dependent kinase(CDK)4/6 inhibitors targeting this pathway can significantly delay endocrine resistance in patients with HR+ advanced breast cancer.The combined use of CDK4/6 inhibitors and endocrine drugs can improve the objective response rate of patients with HR+ advanced breast cancer,and can significantly improve progression-free survival(PFS).This article reviews the mechanism of action,drug effectiveness and safety of CDK4/6 inhibitors,and related clinical trials.

Key words: Advanced breast cancer, CDK4/6 inhibitor, Endocrine therapy, Cell cycle

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