CDK4/6 Inhibitors in Breast Cancer

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Immunology and Immunotherapy".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 785

Special Issue Editors


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Guest Editor
1. Medical Oncology Department, Vall d’Hebron Hospital, 08035 Barcelona, Spain
2. Breast Cancer Group, Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain
Interests: breast cancer; CDK4/6 inhibitors; PI3K/AKT/mTOR pathway; molecular alterations and evolution; development of new drugs; liquid biopsie

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Guest Editor
Department of Medical Oncology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
Interests: breast cancer; endocrine treatments; molecular therapies; hormone

Special Issue Information

Dear Colleagues,

CDK4/6 inhibitors have changed the treatment landscape of hormone receptor-positive (HR+)/HER2-negative breast cancer, with consistent improvements in progression-free and overall survival in the metastatic setting and, more recently, invasive disease-free survival in the early setting. However, some questions regarding their use, differences between agents, efficacy—overall and beyond HR+/HER2-negative disease—and adverse event profiles remain to be elucidated. Moreover, the study of the mechanisms of resistance to CDK4/6 inhibitors is an area of intense research, with the ultimate aim to prevent their appearance and to inform subsequent lines of therapy. In this Special Issue, we want to address these questions and provide a comprehensive view of the current knowledge regarding CDK4/6 inhibitors in breast cancer and the avenues for research ahead.

Dr. Mafalda Oliveira
Dr. Meritxell Bellet
Guest Editors

Manuscript Submission Information

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Published Papers (1 paper)

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Research

17 pages, 1697 KiB  
Article
Real-World Data Analysis of CDK4/6 Inhibitor Therapy—A Patient-Centric Single Center Study
by Isabell Ge, Kai Berner, Marlene Mathis, Catherine Hensgen, Sebastian Mayer, Thalia Erbes, Ingolf Juhasz-Böss and Jasmin Asberger
Cancers 2024, 16(9), 1760; https://doi.org/10.3390/cancers16091760 - 1 May 2024
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Abstract
Background: The quest to comprehend the real-world efficacy of CDK4/6 inhibitors (CDKis) in breast cancer continues, as patient responses vary significantly. Methods: This single-center retrospective study evaluated CDKi use outside the trial condition from November 2016 to May 2020. Progression-free survival (PFS), time-to-treatment [...] Read more.
Background: The quest to comprehend the real-world efficacy of CDK4/6 inhibitors (CDKis) in breast cancer continues, as patient responses vary significantly. Methods: This single-center retrospective study evaluated CDKi use outside the trial condition from November 2016 to May 2020. Progression-free survival (PFS), time-to-treatment failure (TTF), short-term and prolonged treatment benefit (≥4 and ≥10 months), as well as prognostic and predictive markers were assessed with Kaplan–Meier and multivariate regression analyses. Results: Out of 86 identified patients, 58 (67.4%) had treatment failure of which 40 (46.5%) were due to progression. Median PFS and TTF were 12 and 8.5 months, respectively. A total of 57 (66.3%) and 42 (48.8%) patients experienced short-term and prolonged treatment benefit. Independent, significant predictors for PFS were progesterone receptor expression (HR: 0.88), multiple metastatic sites (HR: 2.56), and hepatic metastasis (HR: 2.01). Significant predictors for TTF were PR expression (HR: 0.86), multiple sites (HR: 3.29), adverse events (HR: 2.35), and diabetes (HR: 2.88). Aside from tumor biology and adverse events, treatment modifications like pausing and switching of CDKi were predictive for short-term (OR: 6.73) and prolonged (OR: 14.27) therapeutic benefit, respectively. Conclusions: These findings emphasize the importance of tailored treatment strategies, highlighting the role of PR expression, metastatic burden, and therapeutic adjustments in optimizing patient outcomes in real-world breast cancer management. Full article
(This article belongs to the Special Issue CDK4/6 Inhibitors in Breast Cancer)
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