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Preclinical and clinical development of palbociclib and future perspectives

E Martínez de Dueñas1, J Gavila-Gregori2, S Olmos-Antón3

  • 1Medical Oncology Department, Provincial Hospital of Castellón, Av. Doctor Clará, 19, 12002, Castellón de la Plana, Spain. eduardo.martinez@hospitalprovincial.es.

Clinical & Translational Oncology : Official Publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico
|March 23, 2018
PubMed

Insights

Palbociclib, a CDK4/6 inhibitor, shows efficacy in treating advanced hormone receptor-positive breast cancer. This review details its mechanism, clinical data, and guidelines for advanced HR+/HER2- breast cancer treatment.

Area of Science:

  • Oncology
  • Pharmacology
  • Cell Biology

Background:

  • Cyclin-dependent kinases (CDKs) are crucial for cell cycle regulation and are targeted in cancer therapy.
  • Palbociclib is a selective inhibitor of CDK4/6 with demonstrated clinical efficacy and a favorable toxicity profile.
  • It is approved for advanced hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer.

Purpose of the Study:

  • To review the mechanism of action, preclinical data, and clinical evidence for palbociclib.
  • To discuss the integration of palbociclib data into current clinical guidelines for advanced HR+/HER2- breast cancer.
  • To present ongoing studies and future directions for palbociclib development.

Main Methods:

  • Literature review of preclinical studies and clinical trials involving palbociclib.
  • Analysis of palbociclib's efficacy and safety data in HR+/HER2- breast cancer.
  • Examination of current clinical guidelines and ongoing research.

Main Results:

  • Palbociclib effectively inhibits CDK4/6, leading to cell cycle arrest and reduced proliferation.
  • Clinical trials demonstrate significant progression-free survival benefits when palbociclib is combined with endocrine therapy.
  • Palbociclib is well-tolerated with manageable side effects, supporting its use in advanced breast cancer.

Conclusions:

  • Palbociclib is a valuable therapeutic option for advanced HR+/HER2- breast cancer, improving outcomes when combined with endocrine therapy.
  • Its established efficacy and safety profile support its integration into standard treatment guidelines.
  • Further research is ongoing to explore new combinations and indications for palbociclib.
Keywords:
Anti-tumorBreast cancerCDK4/6Cell cycleCyclinCyclin-dependent kinasesPI3KPalbociclib

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