Breast (Dec 2021)

SARS-CoV-2 neutralizing antibodies after first vaccination dose in breast cancer patients receiving CDK4/6 inhibitors

  • Flora Zagouri,
  • Evangelos Terpos,
  • Oraianthi Fiste,
  • Michalis Liontos,
  • Alexandros Briasoulis,
  • Ioanna Katsiana,
  • Efi Skafida,
  • Christos Markellos,
  • Elena Kunadis,
  • Angeliki Andrikopoulou,
  • Maria Kaparelou,
  • Konstantinos Koutsoukos,
  • Maria Gavriatopoulou,
  • Efstathios Kastritis,
  • Ioannis P. Trougakos,
  • Meletios-Athanasios Dimopoulos

Journal volume & issue
Vol. 60
pp. 58 – 61

Abstract

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Undoubtedly, the development of COVID-19 vaccines displays a critical step towards ending this devastating pandemic, considering their protective benefits in the general population. Yet, data regarding their efficacy and safety in cancer patients are limited. Herein we provide the initial analysis of immune responses after the first dose of vaccination in 21 breast cancer patients receiving cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors. The levels of neutralizing antibodies post vaccination were similar to the matched healthy controls, whereas no safety issues have been raised. Further exploration is needed to reduce the uncertainty of SARS-CoV-2 immunity among cancer patients under treatment.

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