CDK4/6 inhibitors in HR+/HER2- advanced/metastatic breast cancer: a systematic literature review of real-world evidence studies

Author:

Harbeck Nadia1ORCID,Bartlett Meaghan2ORCID,Spurden Dean3ORCID,Hooper Becky2ORCID,Zhan Lin3,Rosta Emily2,Cameron Chris2ORCID,Mitra Debanjali3ORCID,Zhou Anna2ORCID

Affiliation:

1. Breast Center, Department of Gynecology & Obstetrics & Comprehensive Cancer Center, LMU University Hospital, Munich, 81377, Germany

2. CRG-EVERSANA Canada, Inc., Burlington, ON L7N 3H8, Canada

3. Pfizer, Inc., NY 10017, USA

Abstract

Background: This review aims to qualitatively summarize the published real-world evidence (RWE) for CDK4/6 inhibitors (CDK4/6i) approved for treating HR+, HER2-negative advanced/metastatic breast cancer (HR+/HER2- a/mBC). Materials & methods: A systematic literature review was conducted to identify RWE studies of CDK4/6i in HR+/HER2- a/mBC published from 2015 to 2019. Results: This review identified 114 studies, of which 85 were only presented at scientific conferences. Most RWE studies investigated palbociclib and demonstrated improved outcomes. There are limited long-term and comparative data between CDK4/6i and endocrine monotherapy, and within the CDK4/6i class. Conclusion: Available RWE suggests that CDK4/6i are associated with improved outcomes in HR+/HER2- a/mBC, although additional studies with longer follow-up periods are needed.

Funder

Pfizer

Publisher

Future Medicine Ltd

Subject

Cancer Research,Oncology,General Medicine

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