1
|
Tracy PD, Bopp E, Milner E, Garrido-Castro AC, Giordano A, Mayer EL, Tolaney SM, Tarantino P, Schlam I. Management of Metastatic Hormone Receptor-Positive Breast Cancer Beyond CDK4/6 Inhibitors. Curr Oncol Rep 2025:10.1007/s11912-025-01689-9. [PMID: 40434676 DOI: 10.1007/s11912-025-01689-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2025] [Indexed: 05/29/2025]
Abstract
PURPOSE OF REVIEW Since the introduction of cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i) in combination with endocrine therapy (ET) as the first-line treatment for metastatic hormone receptor (HR) positive, human epidermal growth factor receptor 2 (HER2) negative (HR+/HER2-) breast cancer, there has been a significant expansion in the number of therapeutic options for subsequent lines of therapy. Many new agents are being studied, with potential for future regulatory approval. The increased number of therapeutic options raises questions about the optimal selection and sequencing of therapies for individual patients. These advances represent an important clinical challenge in this rapidly evolving field, given the introduction of new therapies targeting various pathways (alone or in combination) and new therapeutic classes being studied. RECENT FINDINGS Recently approved targeted therapies have demonstrated improvements in progression free survival (PFS) for patients whose cancer harbors mutations in the PI3K/AKT pathway, ESR1, BRCA1/2, and/or PALB2. Data to support continuation of CDK4/6 inhibition after progression on a prior CDK4/6i remains mixed, though some studies suggest a subset of patients may benefit from this approach. Several agents with unique mechanisms of action have shown promise in data from early phase trials, and have the potential to enter the treatment lexicon in the coming years. Examples include CDK2- and CDK4-selective inhibitors, complete estrogen receptor antagonists (CERANs), proteolysis targeting chimeras (PROTACs), and next-generation PI3K pathway inhibitors. In this narrative review, we summarize the current and upcoming treatments for metastatic HR+/HER2- breast cancer after progression on a CDK4/6i plus ET, with a focus on the following: an overview of first-line regimens of CDK4/6i plus ET and observed mechanisms of resistance; currently approved second-line therapy options; and upcoming options currently under exploration in clinical trials. We focus primarily on new therapy classes that may offer therapeutic options beyond currently available treatments.
Collapse
Affiliation(s)
- Philip D Tracy
- Department of Hematology/Oncology, Tufts Medical Center, Boston, MA, 02111, USA
- Tufts University School of Medicine, Boston, MA, 02111, USA
| | - Emily Bopp
- Department of Medicine, Tufts Medical Center, Boston, MA, 02111, USA
| | - Emily Milner
- Department of Medicine, Tufts Medical Center, Boston, MA, 02111, USA
| | - Ana C Garrido-Castro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Antonio Giordano
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Erica L Mayer
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Sara M Tolaney
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Paolo Tarantino
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA.
- Harvard Medical School, Boston, MA, 02115, USA.
- Department of Oncology and Onco-Hematology, University of Milan, Milan, 20122, Italy.
| | - Ilana Schlam
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, 02115, USA
| |
Collapse
|
2
|
Gao T, Sun Y, Leng P, Liu D, Guo Q, Li J. CDK4/6 inhibitors in breast cancer therapy: mechanisms of drug resistance and strategies for treatment. Front Pharmacol 2025; 16:1549520. [PMID: 40421216 PMCID: PMC12104243 DOI: 10.3389/fphar.2025.1549520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2024] [Accepted: 04/24/2025] [Indexed: 05/28/2025] Open
Abstract
Dysregulated cell cycle progression is a well-established hallmark of cancer, driving the development of targeted antitumor therapies that intervene at specific phases of the cell cycle. Among these therapeutic targets, cyclin-dependent kinases 4 and 6 (CDK4/6) have emerged as critical regulators of cell cycle progression, with their aberrant activation being strongly implicated in tumorigenesis and cancer progression. Currently, multiple CDK4/6 inhibitors have received clinical approval for hormone receptor (HR)-positive/human epidermal growth factor receptor 2 (HER2)-negative breast cancer, demonstrating dual therapeutic mechanisms through both cell cycle arrest and enhancement of antitumor immunity. However, clinical implementation faces two major challenges: the inevitable development of acquired resistance during prolonged treatment, and the need for optimized combination strategies with other anticancer agents to achieve synergistic efficacy. This review systematically examines the molecular mechanisms underlying CDK4/6 inhibitor function and characterizes currently approved therapeutic agents. Importantly, it synthesizes recent discoveries regarding resistance mechanisms, including dysregulated cell cycle checkpoints, compensatory signaling pathway activation, and tumor microenvironment adaptations. Furthermore, we critically evaluate emerging combination therapeutic approaches targeting these resistance mechanisms. By integrating mechanistic insights with clinical evidence, this analysis aims to provide actionable strategies for overcoming therapeutic resistance and maximizing the clinical potential of CDK4/6 inhibitors in breast cancer management.
Collapse
Affiliation(s)
- Tong Gao
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ying Sun
- Department of Health Management Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ping Leng
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Donghua Liu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qie Guo
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jing Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| |
Collapse
|
3
|
Fina E, Vitale E, De Summa S, Gadaleta-Caldarola G, Tommasi S, Massafra R, Brunetti O, Rizzo A. Liquid biopsy for guiding breast cancer immunotherapy. Immunotherapy 2025; 17:369-383. [PMID: 40083311 PMCID: PMC12045575 DOI: 10.1080/1750743x.2025.2479426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2024] [Accepted: 03/11/2025] [Indexed: 03/16/2025] Open
Abstract
Liquid biopsy is a laboratory test used to detect and analyze circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), and other tumor-derived components, in a blood sample. In the context of breast cancer (BC), liquid biopsies hold significant promise for guiding the use of immune checkpoint inhibitors and immune-based combinations, offering real-time insights into tumor dynamics, treatment response, and resistance mechanisms. This review explores the role of liquid biopsy in BC immunotherapy, focusing on its applications, benefits, issues, and current and future research directions.
Collapse
Affiliation(s)
- Emanuela Fina
- Thoracic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elsa Vitale
- Scientific Directorate, IRCCS Istituto Tumori “Giovanni Paolo II, Bari, Italy
| | - Simona De Summa
- Unità di Diagnostica Molecolare e Farmacogenetica, IRCCS Istituto Tumori Giovanni Paolo II Bari, Bari, Italy
| | | | - Stefania Tommasi
- Unità di Diagnostica Molecolare e Farmacogenetica, IRCCS Istituto Tumori Giovanni Paolo II Bari, Bari, Italy
| | - Raffaella Massafra
- Scientific Directorate, IRCCS Istituto Tumori “Giovanni Paolo II, Bari, Italy
| | - Oronzo Brunetti
- S.S.D. C.O.r.O. Bed Management Presa in Carico, TDM, IRCCS Istituto Tumori “Giovanni Paolo II, Bari, Italy
| | - Alessandro Rizzo
- S.S.D. C.O.r.O. Bed Management Presa in Carico, TDM, IRCCS Istituto Tumori “Giovanni Paolo II, Bari, Italy
| |
Collapse
|
4
|
Szostakowska-Rodzos M, Grzybowska EA, Mysliwy I, Zub R, Jagiello-Gruszfeld A, Rubach M, Konieczna A, Fabisiewicz A. The Combined Assessment of CTC and ESR1 Status in Liquid Biopsy Samples Enhances the Clinical Value of Prediction in Metastatic Breast Cancer. Int J Mol Sci 2025; 26:2038. [PMID: 40076662 PMCID: PMC11900918 DOI: 10.3390/ijms26052038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2025] [Revised: 02/18/2025] [Accepted: 02/21/2025] [Indexed: 03/14/2025] Open
Abstract
Monitoring of metastatic breast cancer (mBC) is an important issue in the clinical management of patients. Liquid biopsy has become a non-invasive method for detecting and monitoring cancer in body fluids. The presence of circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA) in peripheral blood indicates poor prognosis and may contribute to early detection of progression, but assessment of these levels is still not routine clinical management. The main objective of this study was to estimate the frequency and clinical value of the ESR1 and PIK3CA mutations identified in circulating free DNA (cfDNA.) The second goal was to evaluate whether simultaneous evaluation of CTCs and mutation status in cfDNA increases the prognostic value of liquid biopsy. The results of the analysis of the CTC number and ESR1 and PIK3CA mutations in blood collected from 179 patients with metastatic breast cancer show that ESR1 mutations are more frequent in patients with advanced luminal breast cancer regardless of the type of the treatment. ESR1 mutations appear primarily during progression, as no mutations were found in primary tumor samples. The main conclusion of the study is that combined assessment of CTCs and ESR1 status in liquid biopsy may improve the prognostic value of liquid biopsy.
Collapse
Affiliation(s)
- Malgorzata Szostakowska-Rodzos
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland; (M.S.-R.); (I.M.)
| | - Ewa A. Grzybowska
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland; (M.S.-R.); (I.M.)
| | - Izabella Mysliwy
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland; (M.S.-R.); (I.M.)
| | - Renata Zub
- Cancer Molecular and Genetic Diagnostics Department, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland;
| | | | - Maryna Rubach
- Cancer Chemotherapy Day Unit, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland;
| | - Aleksandra Konieczna
- Department of Breast Cancer and Reconstructive Surgery, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland;
| | - Anna Fabisiewicz
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781 Warsaw, Poland; (M.S.-R.); (I.M.)
| |
Collapse
|
5
|
Shanabag A, Armand J, Son E, Yang HW. Targeting CDK4/6 in breast cancer. Exp Mol Med 2025; 57:312-322. [PMID: 39930131 PMCID: PMC11873051 DOI: 10.1038/s12276-025-01395-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Revised: 11/15/2024] [Accepted: 11/17/2024] [Indexed: 03/04/2025] Open
Abstract
Dysregulation of the cell cycle machinery, particularly the overactivation of cyclin-dependent kinases 4 and 6 (CDK4/6), is a hallmark of breast cancer pathogenesis. The introduction of CDK4/6 inhibitors has transformed the treatment landscape for hormone receptor-positive breast cancer by effectively targeting abnormal cell cycle progression. However, despite their initial clinical success, drug resistance remains a significant challenge, with no reliable biomarkers available to predict treatment response or guide strategies for managing resistant populations. Consequently, numerous studies have sought to investigate the mechanisms driving resistance to optimize the therapeutic use of CDK4/6 inhibitors and improve patient outcomes. Here we examine the molecular mechanisms regulating the cell cycle, current clinical applications of CDK4/6 inhibitors in breast cancer, and key mechanisms contributing to drug resistance. Furthermore, we discuss emerging predictive biomarkers and highlight potential directions for overcoming resistance and enhancing therapeutic efficacy.
Collapse
Affiliation(s)
- Anusha Shanabag
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Jessica Armand
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Eugene Son
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Hee Won Yang
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
| |
Collapse
|
6
|
Foffano L, Cucciniello L, Nicolò E, Migliaccio I, Noto C, Reduzzi C, Malorni L, Cristofanilli M, Gerratana L, Puglisi F. Cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i): Mechanisms of resistance and where to find them. Breast 2025; 79:103863. [PMID: 39718288 PMCID: PMC11872392 DOI: 10.1016/j.breast.2024.103863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2024] [Accepted: 12/15/2024] [Indexed: 12/25/2024] Open
Abstract
CDK4/6 inhibitors (CDK4/6i) have significantly impacted on the treatment of HR + HER2 negative (HER2-) metastatic breast cancer (BC) when combined with endocrine therapy. Nonetheless, despite significant research efforts, the mechanisms of de novo and acquired resistance to CDK4/6i have not yet been fully elucidated, highlighting the need for a deeper understanding of these process. Additionally, the importance of dissecting CDK4/6i resistance from endocrine resistance for personalized treatment is increasingly recognized. Liquid biopsy has emerged as a minimally invasive tool for identifying circulating biomarkers of resistance through the integration of multiparametric and dynamic assessments that encompass ctDNA, CTCs, exosomes, and epigenetic ctDNA alterations, representing a promising perspective for the clinical characterization of treatment resistance and guiding post-progression strategies to improve patient outcomes. Aim of this review is summarize potential mechanisms of CDK4/6i resistance, along with the advantages of using liquid biopsy to identify resistance biomarkers in HR+/HER2- MBC patients treated with CDK 4/6 inhibitors.
Collapse
Affiliation(s)
- L Foffano
- Department of Medical Oncology. CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy; Department of Medicine, University of Udine, Udine, Italy
| | - L Cucciniello
- Department of Medical Oncology. CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy; Department of Medicine, University of Udine, Udine, Italy
| | - E Nicolò
- Division of Hematology-Oncology, Weill Cornell Medicine, New York, NY, USA; Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy; Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
| | - I Migliaccio
- "Sandro Pitigliani" Translational Research Unit, Hospital of Prato, 59100, Prato, Italy
| | - C Noto
- Department of Medical Oncology. CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy; Department of Medicine, University of Udine, Udine, Italy
| | - C Reduzzi
- Division of Hematology-Oncology, Weill Cornell Medicine, New York, NY, USA
| | - L Malorni
- "Sandro Pitigliani" Translational Research Unit, Hospital of Prato, 59100, Prato, Italy; "Sandro Pitigliani" Medical Oncology Department, Hospital of Prato, 59100, Prato, Italy
| | - M Cristofanilli
- Division of Hematology-Oncology, Weill Cornell Medicine, New York, NY, USA
| | - L Gerratana
- Department of Medical Oncology. CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy.
| | - F Puglisi
- Department of Medical Oncology. CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy; Department of Medicine, University of Udine, Udine, Italy
| |
Collapse
|
7
|
Pastò B, Vida R, Dri A, Foffano L, Della Rossa S, Gerratana L, Puglisi F. Beyond Hormone Receptors: liquid biopsy tools to unveil new clinical meanings and empower therapeutic decision-making in Luminal-like metastatic breast cancer. Breast 2025; 79:103859. [PMID: 39708442 PMCID: PMC11872398 DOI: 10.1016/j.breast.2024.103859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2024] [Revised: 10/29/2024] [Accepted: 12/11/2024] [Indexed: 12/23/2024] Open
Abstract
Immunohistochemical (IHC) tissue profiling is a standard practice in the management of metastatic breast cancer (mBC), that enables the identification of distinct biological phenotypes based on hormone receptors' expression. Luminal-like tumors primarily benefit from a first line treatment strategy combining endocrine therapy and cyclin-dependent kinase 4/6 inhibitors. However, IHC analyses necessitate invasive procedures and may encounter technical and interpretational challenges. In the current era of precision medicine, liquid biopsy holds potential to provide clinicians with additional insights into disease biology, including mechanisms underlying endocrine resistance and disease progression. Several liquid-based biomarkers are entering clinical practice and hold prognostic and predictive values in Luminal-like mBC, while many others are currently being investigated. The present work aims to summarize the current evidence regarding the clinical meanings of hormone receptors and their downstream molecular pathways, alongside their implications for therapeutic decision-making in Luminal-like mBC.
Collapse
Affiliation(s)
- Brenno Pastò
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| | - Riccardo Vida
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| | - Arianna Dri
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| | - Lorenzo Foffano
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| | - Serena Della Rossa
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| | - Lorenzo Gerratana
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy.
| | - Fabio Puglisi
- Department of Medicine (DMED), University of Udine, 33100, Udine, Italy; Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081, Aviano, Italy
| |
Collapse
|
8
|
Kim KH, Park C, Beom SH, Kim MH, Kim CG, Kim HR, Jung M, Shin SJ, Rha SY, Kim HS. An open-label, phase IB/II study of abemaciclib with paclitaxel for tumors with CDK4/6 pathway genomic alterations. ESMO Open 2025; 10:104106. [PMID: 39874900 PMCID: PMC11799963 DOI: 10.1016/j.esmoop.2024.104106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 10/16/2024] [Accepted: 12/04/2024] [Indexed: 01/30/2025] Open
Abstract
BACKGROUND Disruption of cyclin D-dependent kinases (CDKs), particularly CDK4/6, drives cancer cell proliferation via abnormal protein phosphorylation. This open-label, single-arm, phase Ib/II trial evaluated the efficacy of the CDK4/6 inhibitor, abemaciclib, combined with paclitaxel against CDK4/6-activated tumors. PATIENTS AND METHODS Patients with locally advanced or metastatic solid tumors with CDK4/6 pathway aberrations were included. Based on phase Ib, the recommended phase II doses were determined as abemaciclib 100 mg twice daily and paclitaxel 70 mg/m2 on days 1, 8, and 15, over 4-week-long cycles. The primary endpoint for phase II was the overall response rate (ORR). The secondary endpoints included the clinical benefit rate (CBR), progression-free survival (PFS), overall survival (OS), and safety. Tissue-based next-generation sequencing and exploratory circulating tumor DNA analyses were carried out. RESULTS Between February 2021 and April 2022, 30 patients received abemaciclib/paclitaxel (median follow-up: 15.7 months), and 27 were included in the efficacy analysis. CDK4/6 amplification (50%) and CCND1/3 amplification (20%) were common activating mutations. The ORR was 7.4%, with two partial responses, and the CBR was 66.7% (18/27 patients). The median OS and PFS were 9.9 months [95% confidence interval (CI) 5.7-14.0 months] and 3.5 months (95% CI 2.6-4.3 months), respectively. Grade 3 adverse events (50%, 21 events) were mainly hematologic. Genetic analysis revealed a 'poor genetic status' subgroup characterized by mutations in key signaling pathways (RAS, Wnt, PI3K, and NOTCH) and/or CCNE amplification, correlating with poorer PFS. CONCLUSION Abemaciclib and paclitaxel showed moderate clinical benefits for CDK4/6-activated tumors. We identified a poor genetic group characterized by bypass signaling pathway activation and/or CCNE amplification, which negatively affected treatment response and survival. Future studies with homogeneous patient groups are required to validate these findings.
Collapse
Affiliation(s)
- K H Kim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - C Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University Cancer Research Institute, Seoul, Republic of Korea
| | - S-H Beom
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M H Kim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - C G Kim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - H R Kim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M Jung
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S J Shin
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Rha
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - H S Kim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
9
|
Cejalvo Andújar JM, Ayala de la Peña F, Margeli Vila M, Pascual J, Tolosa P, Pages C, Cuenca M, Guerrero Zotano Á. Optimizing therapeutic approaches for HR+/HER2- advanced breast cancer: clinical perspectives on biomarkers and treatment strategies post-CDK4/6 inhibitor progression. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2025; 8:5. [PMID: 39935426 PMCID: PMC11810462 DOI: 10.20517/cdr.2024.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2024] [Revised: 12/23/2024] [Accepted: 01/08/2025] [Indexed: 02/13/2025]
Abstract
This review offers an expert perspective on biomarkers, CDK4/6 inhibitor efficacy, and therapeutic approaches for managing hormone receptor-positive (HR+), human epidermal growth factor receptor-negative (HER2-) advanced breast cancer (ABC), particularly after CDK4/6 inhibitor progression. Key trials have demonstrated that combining CDK4/6 inhibitors with endocrine therapy (ET) significantly improves progression-free survival (PFS), with median durations ranging from 14.8 to 26.7 months, and overall survival (OS), with median durations reaching up to 53.7 months. Actionable biomarkers, such as PIK3CA and ESR1 mutations, have emerged as pivotal tools to guide second-line treatment decisions, enabling the use of targeted therapies like alpelisib and elacestrant and emphasizing the important role of biomarkers in guiding the selection of therapy. This overview aims to provide clinicians with a practical and up-to-date framework to inform treatment decisions and improve patient care in the context of this challenging disease. Additionally, we review emerging biomarkers and novel treatment strategies to address this difficult clinical landscape.
Collapse
Affiliation(s)
- Juan Miguel Cejalvo Andújar
- Medical Oncology Department, Hospital Clínico Universitario de Valencia, Valencia 46010, Spain
- INCLIVA Biomedical Research Institute, Valencia 46010, Spain
- Center for Biomedical Network Research on Cancer (CIBERONC), Madrid 28019, Spain
| | | | - Mireia Margeli Vila
- Medical Oncology Department, Instituto Catalán de Oncología, Badalona 08916, Spain
- CARE, the Translational Program in Cancer Research of Germans Trias i Pujol Research Institute (IGTP), Badalona 08916, Spain
| | - Javier Pascual
- Center for Biomedical Network Research on Cancer (CIBERONC), Madrid 28019, Spain
- Medical Oncology Department, UGC Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, IBIMA, Málaga 29010, Spain
| | - Pablo Tolosa
- Medical Oncology Department, Hospital Universitario 12 de octubre, Madrid 28041, Spain
| | - Cristina Pages
- Medical Department, Pfizer Oncology, Madrid 28108, Spain
| | - Mónica Cuenca
- Medical Department, Pfizer Oncology, Madrid 28108, Spain
| | - Ángel Guerrero Zotano
- Medical Oncology Department, Instituto Valenciano de Oncología, Valencia 46009, Spain
| |
Collapse
|
10
|
Asciolla JJ, Wu X, Adamopoulos C, Gavathiotis E, Poulikakos PI. Resistance mechanisms and therapeutic strategies of CDK4 and CDK6 kinase targeting in cancer. NATURE CANCER 2025; 6:24-40. [PMID: 39885369 DOI: 10.1038/s43018-024-00893-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 12/09/2024] [Indexed: 02/01/2025]
Abstract
Cyclin-dependent kinases (CDKs) 4 and 6 (CDK4/6) are important regulators of the cell cycle. Selective CDK4/6 small-molecule inhibitors have shown clinical activity in hormonal receptor-positive (HR+) metastatic breast cancer, but their effectiveness remains limited in other cancer types. CDK4/6 degradation and improved selectivity across CDK paralogs are approaches that could expand the effectiveness of CDK4/6 targeting. Recent studies also suggest the use of CDK4/6-targeting agents in cancer immunotherapy. In this Review, we highlight recent advancements in the mechanistic understanding and development of pharmacological approaches targeting CDK4/6. Collectively, these developments pose new challenges and opportunities for rationally designing more effective treatments.
Collapse
Affiliation(s)
- James J Asciolla
- Department of Oncological Sciences, Precision Immunology Institute, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Xuewei Wu
- Department of Oncological Sciences, Precision Immunology Institute, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- China Innovation Center of Roche, Shanghai, China
| | - Christos Adamopoulos
- Department of Oncological Sciences, Precision Immunology Institute, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Evripidis Gavathiotis
- Department of Biochemistry, Department of Medicine, Department of Oncology, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, New York, NY, USA
| | - Poulikos I Poulikakos
- Department of Oncological Sciences, Precision Immunology Institute, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| |
Collapse
|
11
|
Wager K, Wang Y, Liew A, Campbell D, Liu F, Martini JF, Ziaee N, Liu Y. Using bioinformatics and artificial intelligence to map the cyclin-dependent kinase 4/6 inhibitor biomarker landscape in breast cancer. Future Oncol 2024; 20:3519-3537. [PMID: 39530636 DOI: 10.1080/14796694.2024.2419352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 10/17/2024] [Indexed: 11/16/2024] Open
Abstract
A cyclin-dependent kinase 4/6 (CDK4/6) inhibitor combined with endocrine therapy is the standard-of-care for patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer. However, not all patients respond to the treatment, resistance often occurs and efficacy outcomes from early breast cancer trials have been mixed. To identify biomarkers associated with CDK4/6 inhibitor response or resistance, we combined bioinformatic-database analyses, artificial intelligence-assisted literature review, and manual literature review (Embase and OVID Medline; search window: January 2012-October 2022) to compile data to comprehensively describe the CDK4/6 inhibitor biomarker landscape. Based on these results, and validation by external experts, we identified 15 biomarkers of clinical importance (AR , AURKA, ERBB2, ESR1, CCNE1, CDKN1A/B, CDK2, CDK6, CDK7, CDK9, FGFR1/2, MYC, PIK3CA/AKT, RB1 and STAT3) that could guide future breast cancer research.
Collapse
Affiliation(s)
- Kim Wager
- AI & Data Science, Oxford PharmaGenesis Ltd, Oxford, UK
| | - Yao Wang
- Oncology Pfizer Biopharma, Pfizer Inc., New York, NY 10001, USA
| | - Andrew Liew
- AI & Data Science, Oxford PharmaGenesis Ltd, Oxford, UK
| | - Dean Campbell
- Oncology Pfizer Biopharma, Pfizer Inc., New York, NY 10001, USA
| | - Feng Liu
- Pfizer Oncology Division, Pfizer Inc., San Diego, CA 92121, USA
| | | | - Niusha Ziaee
- Oncology Pfizer Biopharma, Pfizer Inc., New York, NY 10001, USA
| | - Yuan Liu
- Pfizer Oncology Division, Pfizer Inc., San Diego, CA 92121, USA
| |
Collapse
|
12
|
Tokat ÜM, Bilgiç ŞN, Aydın E, Adibi A, Özgü E, Tutar O, Demiray M. Elacestrant plus alpelisib in an ESR1 and PIK3CA co-mutated and heavily pretreated metastatic breast cancer: the first case report for combination efficacy and safety. Ther Adv Med Oncol 2024; 16:17588359241297101. [PMID: 39539943 PMCID: PMC11558728 DOI: 10.1177/17588359241297101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Accepted: 10/17/2024] [Indexed: 11/16/2024] Open
Abstract
Breast cancer (BC) is the leading cause of cancer-related mortality among women, and hormone receptor (HR)-positive subtype makes up the majority of all cases. The standard of care in HR+/HER2- metastatic BC (MBC) is endocrine therapy (ET) plus a CDK4/6 inhibitor (CDK4/6i). ESR1 mutations could impair the clinical efficacy of the ETs. Similarly, PIK3CA mutations may serve as a negative prognostic marker. Furthermore, MBC is challenging to treat despite new drug approvals. Our patient received multiple lines of ET ± CDK4/6i and chemotherapy but persistently progressed after each or stopped the treatment due to adverse events. Here we showed for the first time that an all-oral combination of elacestrant plus alpelisib was feasible, tolerable, and clinically active in an ESR1 and PIK3CA co-mutated and heavily pretreated patient. We achieved a remarkable response in the metastatic lesions with minor toxicity issues. This case highlights the importance of utilizing up-to-date therapeutic agents and reactive decision-making during personalized cancer treatment.
Collapse
Affiliation(s)
- Ünal Metin Tokat
- Precision Oncology Center, Medicana Health Group, Istanbul, Türkiye
| | | | - Esranur Aydın
- Precision Oncology Center, Medicana Health Group, Istanbul, Türkiye
| | - Ashkan Adibi
- Precision Oncology Center, Medicana Health Group, Istanbul, Türkiye
- Division of Cancer Genetics, Department of Basic Oncology, Institute of Oncology, Istanbul University, Istanbul, Türkiye
| | - Eylül Özgü
- Precision Oncology Center, Medicana Health Group, Istanbul, Türkiye
| | - Onur Tutar
- Department of Internal Medicine, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Türkiye
| | - Mutlu Demiray
- Precision Oncology Center, Medicana Health Group, Istanbul, Türkiye
| |
Collapse
|
13
|
Xi J, Ma CX, O'Shaughnessy J. Current Clinical Utility of Circulating Tumor DNA Testing in Breast Cancer: A Practical Approach. JCO Oncol Pract 2024; 20:1460-1470. [PMID: 39531841 DOI: 10.1200/op.24.00274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 08/26/2024] [Accepted: 08/27/2024] [Indexed: 11/16/2024] Open
Abstract
Circulating tumor DNA (ctDNA) refers to DNA fragments released from cancer cells into the bloodstream. Clinical utility of ctDNA in breast cancer has been explored in both metastatic breast cancer (MBC) and early-stage breast cancer (EBC) settings. In MBC, ctDNA can detect therapeutically targetable genomic alterations and has shown great potential in predicting treatment response or resistance. Accumulating data suggest that ctDNA might also have prognostic value in MBC. In EBC, emerging data have shown ctDNA's predictive and/or prognostic value in both neoadjuvant and adjuvant settings. Minimal residual disease (MRD) detection via ctDNA to detect clinical recurrence after curative therapy is a rapidly advancing field. In this review, we discuss the existing and emerging data regarding ctDNA utility in both MBC and EBC settings.
Collapse
Affiliation(s)
- Jing Xi
- Rocky Mountain Cancer Centers, Denver, CO
| | | | | |
Collapse
|
14
|
Lloyd MR, Jhaveri K, Kalinsky K, Bardia A, Wander SA. Precision therapeutics and emerging strategies for HR-positive metastatic breast cancer. Nat Rev Clin Oncol 2024; 21:743-761. [PMID: 39179659 DOI: 10.1038/s41571-024-00935-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2024] [Indexed: 08/26/2024]
Abstract
Anti-oestrogen-based therapies, often combined with a CDK4/6 inhibitor, are the current standard-of-care first-line therapy for patients with advanced-stage hormone receptor-positive (HR+) breast cancer. Resistance to anti-oestrogen agents inevitably occurs, mediated by oestrogen receptor (ER)-dependent or ER-independent mechanisms that drive tumour progression. Emerging endocrine therapies include, but are not limited to, next-generation oral ER degraders and proteolysis targeting chimeras, which might be particularly effective in patients with ESR1-mutant breast cancer. Furthermore, cancers harbouring driver alterations in oncogenic signalling pathways, including AKT and PI3K, might be susceptible to novel combination strategies involving targeted inhibitors. Next-generation CDK2/4 inhibitors are an area of active clinical investigation, and efforts are ongoing to evaluate the role of sequential CDK inhibition. Approved and emerging antibody-drug conjugates exploiting novel target antigens have also demonstrated promising clinical activity. These novel agents, as well as further identification and characterization of predictive biomarkers, will hopefully continue to improve clinical outcomes, reduce the incidence of toxicities, and limit the extent of overtreatment in this population. In this Review, we describe the evolving treatment paradigm for patients with metastatic HR+ breast cancer in light of the growing armamentarium of drugs and biomarkers that will help to shape the future therapeutic landscape. These strategies are expected to involve tumour molecular profiling to enable the delivery of precision medicine.
Collapse
Affiliation(s)
| | - Komal Jhaveri
- Memorial Sloan Kettering Evelyn H. Lauder Breast Center, New York, NY, USA
| | - Kevin Kalinsky
- Winship Cancer Institute at Emory University, Atlanta, GA, USA
| | - Aditya Bardia
- UCLA Health Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Seth A Wander
- Massachusetts General Hospital Cancer Center, Boston, MA, USA.
| |
Collapse
|
15
|
Safonov A, Marra A, Bandlamudi C, O'Leary B, Wubbenhorst B, Ferraro E, Moiso E, Lee M, An J, Donoghue MTA, Will M, Pareja F, Nizialek E, Lukashchuk N, Sofianopoulou E, Liu Y, Huang X, Ahmed M, Mehine MM, Ross D, Mandelker D, Ladanyi M, Schultz N, Berger MF, Scaltriti M, Reis-Filho JS, Li BT, Offit K, Norton L, Shen R, Shah S, Maxwell KN, Couch F, Domchek SM, Solit DB, Nathanson KL, Robson ME, Turner NC, Chandarlapaty S, Razavi P. Tumor suppressor heterozygosity and homologous recombination deficiency mediate resistance to front-line therapy in breast cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.05.578934. [PMID: 39253462 PMCID: PMC11383285 DOI: 10.1101/2024.02.05.578934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
The co-occurrence of germline and somatic oncogenic alterations is frequently observed in breast cancer, but their combined biologic and clinical significance has not been evaluated. To assess the role of germline-somatic interactions on outcomes in routine practice, we developed an integrated clinicogenomic pipeline to analyze the genomes of over 4,500 patients with breast cancer. We find that germline (g) BRCA2 -associated tumors are enriched for RB1 loss-of-function mutations and manifest poor outcomes on standard-of-care, front-line CDK4/6 inhibitor (CDK4/6i) combinations. Amongst these tumors, g BRCA2 -related homologous recombination deficiency (HRD) as well as baseline RB1 LOH status promote acquisition of RB1 loss-of- function mutations under the selective pressure of CDK4/6i, causing therapy resistance. These findings suggest an alternative therapeutic strategy using sequential targeting of HRD in g BRCA- associated breast cancers through PARP inhibitors prior to CDK4/6i therapy to intercept deleterious RB1 -loss trajectories and thus suppress the emergence of CDK4/6 inhibitor resistance. More broadly, our findings demonstrate how germline-somatic driven genomic configurations shape response to systemic therapy and can be exploited therapeutically as part of biomarker-directed clinical strategies.
Collapse
|
16
|
Rickles-Young M, Tinoco G, Tsuji J, Pollock S, Haynam M, Lefebvre H, Glover K, Owen DH, Collier KA, Ha G, Adalsteinsson VA, Cibulskis C, Lennon NJ, Stover DG. Assay Validation of Cell-Free DNA Shallow Whole-Genome Sequencing to Determine Tumor Fraction in Advanced Cancers. J Mol Diagn 2024; 26:413-422. [PMID: 38490303 PMCID: PMC11090203 DOI: 10.1016/j.jmoldx.2024.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/21/2023] [Accepted: 01/18/2024] [Indexed: 03/17/2024] Open
Abstract
Blood-based liquid biopsy is increasingly used in clinical care of patients with cancer, and fraction of tumor-derived DNA in circulation (tumor fraction; TFx) has demonstrated clinical validity across multiple cancer types. To determine TFx, shallow whole-genome sequencing of cell-free DNA (cfDNA) can be performed from a single blood sample, using an established computational pipeline (ichorCNA), without prior knowledge of tumor mutations, in a highly cost-effective manner. We describe assay validation of this approach to facilitate broad clinical application, including evaluation of assay sensitivity, precision, repeatability, reproducibility, pre-analytic factors, and DNA quality/quantity. Sensitivity to detect TFx of 3% (lower limit of detection) was 97.2% to 100% at 1× and 0.1× mean sequencing depth, respectively. Precision was demonstrated on distinct sequencing instruments (HiSeqX and NovaSeq) with no observable differences. The assay achieved prespecified 95% agreement of TFx across replicates of the same specimen (repeatability) and duplicate samples in different batches (reproducibility). Comparison of samples collected in EDTA and Streck tubes from single venipuncture in 23 patients demonstrated that EDTA or Streck tubes were comparable if processed within 8 hours. On the basis of a range of DNA inputs (1 to 50 ng), 20 ng cfDNA is the preferred input, with 5 ng minimum acceptable. Overall, this shallow whole-genome sequencing of cfDNA and ichorCNA approach offers sensitive, precise, and reproducible quantitation of TFx, facilitating assay application in clinical cancer care.
Collapse
Affiliation(s)
- Micah Rickles-Young
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Gabriel Tinoco
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio; Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Junko Tsuji
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Sam Pollock
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Marcy Haynam
- Ohio State University Comprehensive Cancer Center, Columbus, Ohio; Stefanie Spielman Comprehensive Breast Center, Columbus, Ohio
| | - Heather Lefebvre
- Ohio State University Comprehensive Cancer Center, Columbus, Ohio; Stefanie Spielman Comprehensive Breast Center, Columbus, Ohio
| | - Kristyn Glover
- Ohio State University Comprehensive Cancer Center, Columbus, Ohio; Stefanie Spielman Comprehensive Breast Center, Columbus, Ohio
| | - Dwight H Owen
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio; Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Katharine A Collier
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio; Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Gavin Ha
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Viktor A Adalsteinsson
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Carrie Cibulskis
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Niall J Lennon
- Genomics Platform, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts.
| | - Daniel G Stover
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio; Ohio State University Comprehensive Cancer Center, Columbus, Ohio; Stefanie Spielman Comprehensive Breast Center, Columbus, Ohio.
| |
Collapse
|
17
|
Zhong J, Jiang H, Liu X, Liao H, Xie F, Shao B, Jia S, Li H. Variant allele frequency in circulating tumor DNA correlated with tumor disease burden and predicted outcomes in patients with advanced breast cancer. Breast Cancer Res Treat 2024; 204:617-629. [PMID: 38183515 PMCID: PMC10959836 DOI: 10.1007/s10549-023-07210-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/29/2023] [Indexed: 01/08/2024]
Abstract
PURPOSE In patients with first-line advanced breast cancer (ABC), the correlation between ctDNA variant allele frequency (VAF) and tumor disease burden, and its prognostic value remains poorly investigated. METHODS This study included patients with ABC diagnosed at Peking University Cancer Hospital who performed ctDNA test before receiving first-line treatment. Baseline plasma samples were collected for assessing ctDNA alterations and VAF with next-generation sequencing. The sum of tumor target lesion diameters (SLD) was measured with imaging methods according to RECIST 1.1 criteria. RESULTS The final cohort included 184 patients. The median age of the cohort was 49.4 (IQR: 42.3-56.8) years. The median VAF was 15.6% (IQR: 5.4%-33.7%). VAF showed positive correlation with SLD in patients with relatively large tumor lesions (r = 0.314, p = 0.003), but not in patients with small tumor lesions (p = 0.226). VAF was associated with multiple metastasis sites (p = 0.001). Multivariate Cox regression analysis showed that high VAF was associated with shorter overall survival (OS) (HR: 3.519, 95% confidence interval (CI): 2.149-5.761), and first-line progression-free survival (PFS) (HR: 2.352, 95%CI: 1.462-3.782). Combined VAF and SLD improved prediction performance, both median OS and PFS of patients in VAF(H)/SLD(H) group were significantly longer than VAF(L)/SLD(L) group (mOS: 49.3 vs. 174.1 months; mPFS: 9.6 vs. 25.3 months). CONCLUSION ctDNA VAF associated with tumor disease burden, and was a prognostic factor for patients with ABC. A combination of ctDNA test and radiographic imaging might enhance tumor burden evaluation, and improve prognosis stratification in patients with ABC.
Collapse
Affiliation(s)
- Jianxin Zhong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hanfang Jiang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiaoran Liu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hao Liao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Feng Xie
- Huidu Shanghai Medical Sciences, Shanghai, China
| | - Bin Shao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
| | - Shidong Jia
- Huidu Shanghai Medical Sciences, Shanghai, China.
| | - Huiping Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
| |
Collapse
|
18
|
Amato O, Giannopoulou N, Ignatiadis M. Circulating tumor DNA validity and potential uses in metastatic breast cancer. NPJ Breast Cancer 2024; 10:21. [PMID: 38472216 DOI: 10.1038/s41523-024-00626-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Following the first characterization of circulating tumor DNA (ctDNA) in the 1990s, recent advances led to its introduction in the clinics. At present, the European Society Of Medical Oncology (ESMO) recommendations endorse ctDNA testing in routine clinical practice for tumor genotyping to direct molecularly targeted therapies in patients with metastatic cancer. In studies on metastatic breast cancer, ctDNA has been utilized for treatment tailoring, tracking mechanisms of drug resistance, and for predicting disease response before imaging. We review the available evidence regarding ctDNA applications in metastatic breast cancer.
Collapse
Affiliation(s)
- Ottavia Amato
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padova, Padova, Italy
- Medical Oncology 2, Istituto Oncologico Veneto IOV-IRCCS, Padova, Italy
| | - Nefeli Giannopoulou
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Michail Ignatiadis
- Breast Medical Oncology Clinic, Institut Jules Bordet and Université Libre de Bruxelles, Brussels, Belgium.
| |
Collapse
|
19
|
Migliaccio I, Romagnoli D, Galardi F, De Luca F, Biagioni C, Curigliano G, Criscitiello C, Minisini AM, Moretti E, Risi E, Guarducci C, Nardone A, Biganzoli L, Benelli M, Malorni L. Mutational Analysis of Circulating Tumor DNA in Patients With Estrogen Receptor-Positive/Human Epidermal Growth Factor Receptor 2-Negative Advanced Breast Cancer Receiving Palbociclib: Results From the TREnd Trial. JCO Precis Oncol 2024; 8:e2300285. [PMID: 38427931 PMCID: PMC10919481 DOI: 10.1200/po.23.00285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/20/2023] [Accepted: 12/06/2023] [Indexed: 03/03/2024] Open
Abstract
PURPOSE To identify prognostic circulating biomarkers to cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i), we performed a mutational analysis on circulating tumor DNA (ctDNA) samples from patients included in the TREnd trial, which randomly assigned patients to receive the CDK4/6i palbociclib alone or with the endocrine treatment (ET) to which they had progressed. METHODS Forty-six patients were enrolled in this substudy. Plasma was collected before treatment (T0), after the first cycle of therapy (T1), and at the time of progression (T2). ctDNA hybridization and capture were performed using the Illumina TruSight Tumor 170 Kit. Acquired mutations were confirmed by digital polymerase chain reaction. Progression-free survival analysis was estimated using the Kaplan-Meier method and compared with the log-rank test. RESULTS The most frequently mutated genes at T0 were ESR1 (23%), PIK3CA (17%), AR, FGFR2, and TP53 (10%). Mutations in ESR1 at T0 conferred higher risk of progression in the entire population (P = .02) and in patients treated with palbociclib + ET (P = .04). ESR1 mutation effect remained significant after correction for clinical variables (P = .03). PIK3CA mutations at T0 were not prognostic, but higher risk of progression was observed when a broader analysis of PI3K pathway was performed (P = .04). At T2, we observed the emergence of nine new mutations in seven genes. CONCLUSION Mutations in ESR1 and in PI3K pathway genes at T0 were associated with worse prognosis in palbociclib-treated patients. We describe the emergence of newly acquired mutations in palbociclib-treated patients, which might potentially affect subsequent treatment.
Collapse
Affiliation(s)
- Ilenia Migliaccio
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Dario Romagnoli
- Bioinformatics Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Francesca Galardi
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Francesca De Luca
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Chiara Biagioni
- Bioinformatics Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Giuseppe Curigliano
- Division of Early Drug Development, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
- Department of Oncology and Hemato-Oncology, University of Milano, Milan, Italy
| | - Carmen Criscitiello
- Division of Early Drug Development, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
- Department of Oncology and Hemato-Oncology, University of Milano, Milan, Italy
| | | | - Erica Moretti
- Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Emanuela Risi
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
- Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Cristina Guarducci
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Agostina Nardone
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Laura Biganzoli
- Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Matteo Benelli
- Bioinformatics Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| | - Luca Malorni
- Translational Research Unit, Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
- Department of Medical Oncology, Hospital of Prato, Azienda USL Toscana Centro, Prato, Italy
| |
Collapse
|
20
|
Torrisi R, Vaira V, Giordano L, Fernandes B, Saltalamacchia G, Palumbo R, Carnaghi C, Basilico V, Gentile F, Masci G, De Sanctis R, Santoro A. Identification of a Panel of miRNAs Associated with Resistance to Palbociclib and Endocrine Therapy. Int J Mol Sci 2024; 25:1498. [PMID: 38338777 PMCID: PMC10855102 DOI: 10.3390/ijms25031498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
We investigated whether we could identify a panel of miRNAs associated with response to treatment in tumor tissues of patients with Hormone Receptor-positive/HER2-negative metastatic breast cancer treated with endocrine therapy (ET) and the CDK4/6 inhibitor (CDK4/6i)i palbociclib. In total, 52 patients were evaluated, with 41 receiving treatment as the first line. The overall median PFS was 20.8 months (range 2.5-66.6). In total, 23% of patients experienced early progression (<6 months). Seven miRNAs (miR-378e, miR-1233, miR-99b-5p, miR-1260b, miR-448, -miR-1252-5p, miR-324-3p, miR-1233-3p) showed a statistically significant negative association with PFS. When we considered PFS < 6 months, miR-378e, miR-99b-5p, miR-877-5p, miR-1297, miR-455-5p, and miR-4536-5p were statistically associated with a poor outcome. In the multivariate analysis, the first three miRNAs confirmed a significant and independent impact on PFS. The literature data and bioinformatic tools provide an underlying molecular rationale for most of these miRNAs, mainly involving the PI3K/AKT/mTOR pathway and cell-cycle machinery as cyclin D1, CDKN1B, and protein p27Kip1 and autophagy. Our findings propose a novel panel of miRNAs associated with a higher likelihood of early progression in patients treated with ET and Palbociclib and may contribute to shed some light on the mechanisms of de novo resistance to CDK4/6i, but this should be considered exploratory and evaluated in larger cohorts.
Collapse
Affiliation(s)
- Rosalba Torrisi
- Medical Oncology and Hematology Unit, Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy; (G.S.); (G.M.); (R.D.S.); (A.S.)
| | - Valentina Vaira
- Division of Pathology, Fondazione IRCCS Ca’ Granda-Ospedale Maggiore Policlinico, 20122 Milano, Italy; (V.V.); (F.G.)
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milano, Italy
| | - Laura Giordano
- Biostatistic Unit, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy;
| | - Bethania Fernandes
- Pathology Department, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy;
| | - Giuseppe Saltalamacchia
- Medical Oncology and Hematology Unit, Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy; (G.S.); (G.M.); (R.D.S.); (A.S.)
| | | | - Carlo Carnaghi
- Clinical Trials Unit, Istituto Clinico Humanitas, Centro Catanese di Oncologia, 20072 Catania, Italy;
| | - Vera Basilico
- Medical Oncology Unit, Istituto Clinico Mater Domini Humanitas, Castellanza, 21100 Varese, Italy;
| | - Francesco Gentile
- Division of Pathology, Fondazione IRCCS Ca’ Granda-Ospedale Maggiore Policlinico, 20122 Milano, Italy; (V.V.); (F.G.)
| | - Giovanna Masci
- Medical Oncology and Hematology Unit, Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy; (G.S.); (G.M.); (R.D.S.); (A.S.)
| | - Rita De Sanctis
- Medical Oncology and Hematology Unit, Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy; (G.S.); (G.M.); (R.D.S.); (A.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| | - Armando Santoro
- Medical Oncology and Hematology Unit, Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, 20089 Milano, Italy; (G.S.); (G.M.); (R.D.S.); (A.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| |
Collapse
|
21
|
Keup C, Kimmig R, Kasimir-Bauer S. The Diversity of Liquid Biopsies and Their Potential in Breast Cancer Management. Cancers (Basel) 2023; 15:5463. [PMID: 38001722 PMCID: PMC10670968 DOI: 10.3390/cancers15225463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Analyzing blood as a so-called liquid biopsy in breast cancer (BC) patients has the potential to adapt therapy management. Circulating tumor cells (CTCs), extracellular vesicles (EVs), cell-free DNA (cfDNA) and other blood components mirror the tumoral heterogeneity and could support a range of clinical decisions. Multi-cancer early detection tests utilizing blood are advancing but are not part of any clinical routine yet. Liquid biopsy analysis in the course of neoadjuvant therapy has potential for therapy (de)escalation.Minimal residual disease detection via serial cfDNA analysis is currently on its way. The prognostic value of blood analytes in early and metastatic BC is undisputable, but the value of these prognostic biomarkers for clinical management is controversial. An interventional trial confirmed a significant outcome benefit when therapy was changed in case of newly emerging cfDNA mutations under treatment and thus showed the clinical utility of cfDNA analysis for therapy monitoring. The analysis of PIK3CA or ESR1 variants in plasma of metastatic BC patients to prescribe targeted therapy with alpesilib or elacestrant has already arrived in clinical practice with FDA-approved tests available and is recommended by ASCO. The translation of more liquid biopsy applications into clinical practice is still pending due to a lack of knowledge of the analytes' biology, lack of standards and difficulties in proving clinical utility.
Collapse
Affiliation(s)
- Corinna Keup
- Department of Gynecology and Obstetrics, University Hospital of Essen, 45147 Essen, Germany
| | | | | |
Collapse
|
22
|
André F, Su F, Solovieff N, Hortobagyi G, Chia S, Neven P, Bardia A, Tripathy D, Lu YS, Lteif A, Taran T, Babbar N, Slamon D, Arteaga CL. Pooled ctDNA analysis of MONALEESA phase III advanced breast cancer trials. Ann Oncol 2023; 34:1003-1014. [PMID: 37673211 DOI: 10.1016/j.annonc.2023.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 08/04/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023] Open
Abstract
BACKGROUND The phase III MONALEESA trials tested the efficacy and safety of the cyclin-dependent kinase (CDK)4/6 inhibitor ribociclib with different endocrine therapy partners as first- or second-line treatment of hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer (ABC). Using the largest pooled biomarker dataset of the CDK4/6 inhibitor ribociclib in ABC to date, we identified potential biomarkers of response to ribociclib. PATIENTS AND METHODS Baseline circulating tumour DNA from patients in the MONALEESA trials was assessed using next-generation sequencing. An analysis of correlation between gene alteration status and progression-free survival (PFS) was carried out to identify potential biomarkers of response to ribociclib. RESULTS Multiple frequently altered genes were identified. Alterations in ERBB2, FAT3, FRS2, MDM2, SFRP1, and ZNF217 were associated with a greater PFS benefit with ribociclib versus placebo. Patients with high tumour mutational burden (TMB) and with ANO1, CDKN2A/2B/2C, and RB1 alterations exhibited decreased sensitivity to ribociclib versus placebo. CONCLUSIONS Although exploratory, these results provide insight into alterations associated with the improved response to ribociclib treatment and may inform treatment sequencing in patients with actionable alterations following progression on CDK4/6 inhibitors. Validation of potential biomarkers identified here and development of prospective trials testing their clinical utility are warranted. CLINICALTRIALS GOV IDENTIFIERS NCT01958021, NCT02422615, NCT02278120.
Collapse
Affiliation(s)
- F André
- Department of Medical Oncology and INSERM U981, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France.
| | - F Su
- Novartis Pharmaceuticals, East Hanover
| | - N Solovieff
- Novartis Institutes for BioMedical Research, Cambridge
| | - G Hortobagyi
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Chia
- British Columbia Cancer Agency, Vancouver, Canada
| | - P Neven
- Multidisciplinary Breast Centre, Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - A Bardia
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, USA
| | - D Tripathy
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Y-S Lu
- National Taiwan University Hospital, Taipei, Taiwan
| | - A Lteif
- Novartis Pharmaceuticals, East Hanover
| | - T Taran
- Novartis Pharma AG, Basel, Switzerland
| | - N Babbar
- Novartis Pharmaceuticals, East Hanover
| | - D Slamon
- David Geffen School of Medicine at UCLA, Los Angeles
| | - C L Arteaga
- UT Southwestern Simmons Comprehensive Cancer Center, Dallas, USA
| |
Collapse
|
23
|
Agostinetto E, Ignatiadis M. ctDNA as a predictive biomarker in advanced breast cancer: Lessons from the MONALEESA studies. Ann Oncol 2023; 34:955-959. [PMID: 37996168 DOI: 10.1016/j.annonc.2023.09.3111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 11/25/2023] Open
Affiliation(s)
- E Agostinetto
- Institut Jules Bordet, Université Libre de Bruxelles (U.L.B.), Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - M Ignatiadis
- Institut Jules Bordet, Université Libre de Bruxelles (U.L.B.), Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| |
Collapse
|
24
|
Pascual J, Gil-Gil M, Proszek P, Zielinski C, Reay A, Ruiz-Borrego M, Cutts R, Ciruelos Gil EM, Feber A, Muñoz-Mateu M, Swift C, Bermejo B, Herranz J, Margeli Vila M, Antón A, Kahan Z, Csöszi T, Liu Y, Fernandez-Garcia D, Garcia-Murillas I, Hubank M, Turner NC, Martín M. Baseline Mutations and ctDNA Dynamics as Prognostic and Predictive Factors in ER-Positive/HER2-Negative Metastatic Breast Cancer Patients. Clin Cancer Res 2023; 29:4166-4177. [PMID: 37490393 PMCID: PMC10570672 DOI: 10.1158/1078-0432.ccr-23-0956] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 07/27/2023]
Abstract
PURPOSE Prognostic and predictive biomarkers to cyclin-dependent kinases 4 and 6 inhibitors are lacking. Circulating tumor DNA (ctDNA) can be used to profile these patients and dynamic changes in ctDNA could be an early predictor of treatment efficacy. Here, we conducted plasma ctDNA profiling in patients from the PEARL trial comparing palbociclib+fulvestrant versus capecitabine to investigate associations between baseline genomic landscape and on-treatment ctDNA dynamics with treatment efficacy. EXPERIMENTAL DESIGN Correlative blood samples were collected at baseline [cycle 1-day 1 (C1D1)] and prior to treatment [cycle 1-day 15 (C1D15)]. Plasma ctDNA was sequenced with a custom error-corrected capture panel, with both univariate and multivariate Cox models used for treatment efficacy associations. A prespecified methodology measuring ctDNA changes in clonal mutations between C1D1 and C1D15 was used for the on-treatment ctDNA dynamic model. RESULTS 201 patients were profiled at baseline, with ctDNA detection associated with worse progression-free survival (PFS)/overall survival (OS). Detectable TP53 mutation showed worse PFS and OS in both treatment arms, even after restricting population to baseline ctDNA detection. ESR1 mutations were associated with worse OS overall, which was lost when restricting population to baseline ctDNA detection. PIK3CA mutations confer worse OS only to patients on the palbociclib+fulvestrant treatment arm. ctDNA dynamics analysis (n = 120) showed higher ctDNA suppression in the capecitabine arm. Patients without ctDNA suppression showed worse PFS in both treatment arms. CONCLUSIONS We show impaired survival irrespective of endocrine or chemotherapy-based treatments for patients with hormone receptor-positive/HER2-negative metastatic breast cancer harboring plasma TP53 mutations. Early ctDNA suppression may provide treatment efficacy predictions. Further validation to fully demonstrate clinical utility of ctDNA dynamics is warranted.
Collapse
Affiliation(s)
- Javier Pascual
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
- Medical Oncology Intercenter Unit, Regional and Virgen de la Victoria University Hospitals, IBIMA, Málaga, Spain
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Oncology Biomedical Research National Network (CIBERONC-ISCIII), Madrid, Spain
| | - Miguel Gil-Gil
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Institut Català d'Oncologia (ICO), Barcelona, Spain
- IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Paula Proszek
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
| | - Christoph Zielinski
- Medical Oncology, Central European Cancer Center, Wiener Privatklinik Hospital, Vienna, Austria
- CECOG Central European Cooperative Oncology Group, Vienna, Austria
| | - Alistair Reay
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
| | - Manuel Ruiz-Borrego
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Medical Oncology, Hospital Universitario Virgen del Rocio, Sevilla, Spain
| | - Rosalind Cutts
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Eva M. Ciruelos Gil
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Medical Oncology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Andrew Feber
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
| | - Montserrat Muñoz-Mateu
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Department of Medical Oncology and Translational Genomics and Targeted Therapies in Solid Tumors, IDIBAPS, Barcelona, Spain
| | - Claire Swift
- Ralph Lauren Centre for Breast Cancer Research, London, United Kingdom
| | - Begoña Bermejo
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Oncology Biomedical Research National Network (CIBERONC-ISCIII), Madrid, Spain
- Medical Oncology, Hospital Clínico Universitario de Valencia, Biomedical Research Institute INCLIVA, Valencia, Spain
- Medicine Department, Universidad de Valencia, Valencia, Spain
| | | | - Mireia Margeli Vila
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- B-ARGO Group, Catalan Institute of Oncology-Badalona, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Antonio Antón
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Oncology Biomedical Research National Network (CIBERONC-ISCIII), Madrid, Spain
- Medical Oncology, Hospital Universitario Miguel Servet, Medicine Department, Universidad de Zaragoza, Instituto de Investigación Sanitaria Aragón, Zaragoza, Spain
| | - Zsuzsanna Kahan
- CECOG Central European Cooperative Oncology Group, Vienna, Austria
- Department of Oncotherapy, University of Szeged, Szeged, Hungary
| | - Tibor Csöszi
- CECOG Central European Cooperative Oncology Group, Vienna, Austria
- Jász-Nagykun-Szolnok Megyei Hetényi Géza Kórház-Rendelőintézet, Szolnok, Hungary
| | - Yuan Liu
- Pfizer, La Jolla, San Diego, California
| | | | - Isaac Garcia-Murillas
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Michael Hubank
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
| | - Nicholas C. Turner
- Breast Cancer Now Research Centre, The Institute of Cancer Research, London, United Kingdom
- Breast Unit, Royal Marsden Hospital, London, United Kingdom
- Ralph Lauren Centre for Breast Cancer Research, London, United Kingdom
| | - Miguel Martín
- GEICAM Spanish Breast Cancer Group, Madrid, Spain
- Oncology Biomedical Research National Network (CIBERONC-ISCIII), Madrid, Spain
- Medical Oncology, Instituto de Investigación Sanitaria Gregorio Marañón, Medicine Department, Universidad Complutense, Madrid, Spain
| |
Collapse
|
25
|
Chen JW, Jacot W, Cortés J, Krop IE, Dent S, Harbeck N, De Laurentiis M, Diéras V, Im Y, Stout TJ, Schimmoller F, Savage HM, Hutchinson KE, Wilson TR. ER+, HER2- advanced breast cancer treated with taselisib and fulvestrant: genomic landscape and associated clinical outcomes. Mol Oncol 2023; 17:2000-2016. [PMID: 36892268 PMCID: PMC10552898 DOI: 10.1002/1878-0261.13416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/10/2023] [Accepted: 03/07/2023] [Indexed: 03/10/2023] Open
Abstract
Taselisib is a potent β-sparing phosphatidylinositol 3-kinase (PI3K) inhibitor that, with endocrine therapy, improves outcomes in phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA)-mutated (PIK3CAmut) advanced breast cancer. To understand alterations associated with response to PI3K inhibition, we analysed circulating tumour DNA (ctDNA) from participants enrolled in the SANDPIPER trial. Participants were designated as either PIK3CAmut or PIK3CA no mutation was detected (NMD) per baseline ctDNA. The top mutated genes and tumour fraction estimates identified were analysed for their association with outcomes. In participants with PIK3CAmut ctDNA treated with taselisib + fulvestrant, tumour protein p53 (TP53; encoding p53) and fibroblast growth factor receptor 1 (FGFR1) alterations were associated with shorter progression-free survival (PFS) compared to participants with NMD in these genes. Conversely, participants with PIK3CAmut ctDNA harbouring a neurofibromin 1 (NF1) alteration or high baseline tumour fraction estimate experienced improved PFS upon treatment with taselisib + fulvestrant compared to placebo + fulvestrant. Broadly, alterations in oestrogen receptor (ER), PI3K and p53 pathway genes were associated with resistance to taselisib + fulvestrant in participants with PIK3CAmut ctDNA. Altogether, we demonstrated the impact of genomic (co-)alterations on outcomes with one of the largest clinico-genomic datasets of ER+, HER2-, PIK3CAmut breast cancer patients treated with a PI3K inhibitor.
Collapse
Affiliation(s)
- Jessica W. Chen
- Oncology Biomarker DevelopmentGenentech, Inc.South San FranciscoCAUSA
| | - William Jacot
- Institut du Cancer de Montpellier (ICM) Val d'AurelleMontpellier University, INSERM U1194France
| | - Javier Cortés
- International Breast Cancer Center (IBCC), Pangaea OncologyQuironsalud GroupMadridSpain
- International Breast Cancer Center (IBCC), Pangaea OncologyQuironsalud GroupBarcelonaSpain
- Faculty of Biomedical and Health Sciences, Department of MedicineUniversidad Europea de MadridMadridSpain
| | | | - Susan Dent
- Duke Cancer InstituteDuke UniversityDurhamNCUSA
| | - Nadia Harbeck
- Breast Center, Department Gynecology and Obstetrics and Comprehensive Cancer Center (CCC) MunichLudwig‐Maximilians‐University (LMU) HospitalMunichGermany
| | | | | | - Young‐Hyuck Im
- Division of Hematology‐Oncology, Department of Medicine, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
| | - Thomas J. Stout
- Product Development OncologyGenentech, Inc.South San FranciscoCAUSA
| | | | - Heidi M. Savage
- Oncology Biomarker DevelopmentGenentech, Inc.South San FranciscoCAUSA
| | | | - Timothy R. Wilson
- Oncology Biomarker DevelopmentGenentech, Inc.South San FranciscoCAUSA
| |
Collapse
|
26
|
Yaghoubi Naei V, Bordhan P, Mirakhorli F, Khorrami M, Shrestha J, Nazari H, Kulasinghe A, Ebrahimi Warkiani M. Advances in novel strategies for isolation, characterization, and analysis of CTCs and ctDNA. Ther Adv Med Oncol 2023; 15:17588359231192401. [PMID: 37692363 PMCID: PMC10486235 DOI: 10.1177/17588359231192401] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 07/19/2023] [Indexed: 09/12/2023] Open
Abstract
Over the past decade, the detection and analysis of liquid biopsy biomarkers such as circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA) have advanced significantly. They have received recognition for their clinical usefulness in detecting cancer at an early stage, monitoring disease, and evaluating treatment response. The emergence of liquid biopsy has been a helpful development, as it offers a minimally invasive, rapid, real-time monitoring, and possible alternative to traditional tissue biopsies. In resource-limited settings, the ideal platform for liquid biopsy should not only extract more CTCs or ctDNA from a minimal sample volume but also accurately represent the molecular heterogeneity of the patient's disease. This review covers novel strategies and advancements in CTC and ctDNA-based liquid biopsy platforms, including microfluidic applications and comprehensive analysis of molecular complexity. We discuss these systems' operational principles and performance efficiencies, as well as future opportunities and challenges for their implementation in clinical settings. In addition, we emphasize the importance of integrated platforms that incorporate machine learning and artificial intelligence in accurate liquid biopsy detection systems, which can greatly improve cancer management and enable precision diagnostics.
Collapse
Affiliation(s)
- Vahid Yaghoubi Naei
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
- Faculty of Medicine, Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Pritam Bordhan
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
- Faculty of Science, Institute for Biomedical Materials & Devices, University of Technology Sydney, Australia
| | - Fatemeh Mirakhorli
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Motahare Khorrami
- Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jesus Shrestha
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Hojjatollah Nazari
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Arutha Kulasinghe
- Faculty of Medicine, Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, University of Technology Sydney, 1, Broadway, Ultimo New South Wales 2007, Australia
| |
Collapse
|
27
|
Sakach E, Keskinkilic M, Wood S, Canning M, Kalinsky K. CDK4/6 Inhibition in the Metastatic Setting: Where Are We Headed? Curr Treat Options Oncol 2023; 24:1103-1119. [PMID: 37314645 DOI: 10.1007/s11864-023-01109-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2023] [Indexed: 06/15/2023]
Abstract
OPINION STATEMENT Hormone receptor positive (HR+), human epidermal growth factor receptor 2 negative (HER-2-) metastatic breast cancer (MBC) is the most common subtype of breast cancer. Due to therapeutic advances with molecularly targeted therapies, the prognosis for patients with metastatic disease has improved significantly. The advent of CDK4/6 inhibitors (CDK4/6i) has changed the treatment paradigm for patients with HR+HER2-MBC. CDK4/6i allowed for marked improvement in overall survival, delaying the time to chemotherapy initiation, and improved quality of life for our patients. Efforts are now focused on the best approach(es) for patients after progression on CDK4/6i. Can we further harness the benefit of CDK4/6i in novel combinations at the time of progression? Should we continue CDK4/6i or proceed other novel agents or endocrine therapies? As we advance our treatment strategies for HR+HER2-MBC, there is no longer a one-size-fits-all model, but instead a multifaceted and personalized approach lending to improved outcomes for our patients.
Collapse
Affiliation(s)
- Elizabeth Sakach
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
| | - Merve Keskinkilic
- Department of Medical Oncology, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey
| | - Sarah Wood
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Madison Canning
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Kevin Kalinsky
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| |
Collapse
|
28
|
Jackson EB, Chia SKL. Sequencing of Endocrine and Targeted Therapies in Hormone-Sensitive, Human Epidermal Growth Factor Receptor 2-Negative Advanced Breast Cancer. J Clin Oncol 2023; 41:3976-3983. [PMID: 37406271 DOI: 10.1200/jco.23.00759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/02/2023] [Accepted: 05/30/2023] [Indexed: 07/07/2023] Open
Abstract
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice.Optimizing the selection and sequencing of endocrine and targeted therapies for hormone-sensitive, human epidermal growth factor receptor 2 (HER2)-negative advanced breast cancer is a rapidly evolving field owing in large part to an increasing pace of drug development coupled with a greater understanding of the genomic drivers of breast cancer. The recently published results from the MAINTAIN clinical trial begin to answer an important question in this patient population-can the well-established benefit with first-line cyclin-dependent kinase 4/6 (CDK 4/6) inhibitors be stretched further by continuing this drug class beyond progression and selecting an alternate endocrine therapy partner? We present a case of a patient with hormone-sensitive HER2 low metastatic breast cancer who underwent circulating tumor DNA next-generation sequencing to better inform her treatment options after progression on first-line therapy with a CDK 4/6 inhibitor and aromatase inhibitor. Our clinical approach in this patient population prioritizes the identification of actionable mutations with high-quality evidence for efficacy on the basis of clinical trials post-CDK 4/6 inhibitors, while balancing comorbidities and patient priorities for care. Several recent clinical trials discussed herein present clinically meaningful results linking emerging targeted therapies to actionable alterations in PIK3CA, ESR1, AKT1, and PTEN. Continued drug development in this space delays time to treatment with chemotherapy, and hopefully contributes to maintaining a high quality of life for these patients on primarily oral-based therapy.
Collapse
Affiliation(s)
- Emily B Jackson
- Department of Medical Oncology, BC Cancer, Vancouver, British Columbia, Canada
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephen K L Chia
- Department of Medical Oncology, BC Cancer, Vancouver, British Columbia, Canada
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
29
|
Morrison L, Okines A. Systemic Therapy for Metastatic Triple Negative Breast Cancer: Current Treatments and Future Directions. Cancers (Basel) 2023; 15:3801. [PMID: 37568617 PMCID: PMC10417818 DOI: 10.3390/cancers15153801] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Until recently, despite its heterogenous biology, metastatic triple negative breast cancer (TNBC) was treated as a single entity, with successive lines of palliative chemotherapy being the only systemic option. Significant gene expression studies have demonstrated the diversity of TNBC, but effective differential targeting of the four main (Basal-like 1 and 2, mesenchymal and luminal androgen receptor) molecular sub-types has largely eluded researchers. The introduction of immunotherapy, currently useful only for patients with PD-L1 positive cancers, led to the stratification of first-line therapy using this immunohistochemical biomarker. Germline BRCA gene mutations can also be targeted with PARP inhibitors in both the adjuvant and metastatic settings. In contrast, the benefit of the anti-Trop-2 antibody-drug conjugate (ADC) Sacituzumab govitecan (SG) does not appear confined to patients with tumours expressing high levels of Trop-2, leading to its potential utility for any patient with an estrogen receptor (ER)-negative, HER2-negative advanced breast cancer (ABC). Most recently, low levels of HER2 expression, detected in up to 60% of TNBC, predicts benefit from the potent HER2-directed antibody-drug conjugate trastuzumab deruxtecan (T-DXd), defining an additional treatment option for this sub-group. Regrettably, despite recent advances, the median survival of TNBC continues to lag far behind the approximately 5 years now expected for patients with ER-positive or HER2-positive breast cancers. We review the data supporting immunotherapy, ADCs, and targeted agents in subgroups of patients with TNBC, and current clinical trials that may pave the way to further advances in this challenging disease.
Collapse
Affiliation(s)
| | - Alicia Okines
- Breast Unit, The Royal Marsden NHS Foundation Trust, London SW3 6JJ, UK
| |
Collapse
|
30
|
Coombes RC, Howell S, Lord SR, Kenny L, Mansi J, Mitri Z, Palmieri C, Chap LI, Richards P, Gradishar W, Sardesai S, Melear J, O'Shaughnessy J, Ward P, Chalasani P, Arkenau T, Baird RD, Jeselsohn R, Ali S, Clack G, Bahl A, McIntosh S, Krebs MG. Dose escalation and expansion cohorts in patients with advanced breast cancer in a Phase I study of the CDK7-inhibitor samuraciclib. Nat Commun 2023; 14:4444. [PMID: 37488191 PMCID: PMC10366102 DOI: 10.1038/s41467-023-40061-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 07/11/2023] [Indexed: 07/26/2023] Open
Abstract
Samuraciclib is a selective oral CDK7-inhibitor. A multi-modular, open-label Phase I study to evaluate safety and tolerability of samuraciclib in patients with advanced malignancies was designed (ClinicalTrials.gov: NCT03363893). Here we report results from dose escalation and 2 expansion cohorts: Module 1A dose escalation with paired biopsy cohort in advanced solid tumor patients, Module 1B-1 triple negative breast cancer (TNBC) monotherapy expansion, and Module 2A fulvestrant combination in HR+/HER2- breast cancer patients post-CDK4/6-inhibitor. Core study primary endpoints are safety and tolerability, and secondary endpoints are pharmacokinetics (PK), pharmacodynamic (PD) activity, and anti-tumor activity. Common adverse events are low grade nausea, vomiting, and diarrhea. Maximum tolerated dose is 360 mg once daily. PK demonstrates dose proportionality (120 mg-480 mg), a half-life of approximately 75 hours, and no fulvestrant interaction. In dose escalation, one partial response (PR) is identified with disease control rate of 53% (19/36) and reduction of phosphorylated RNA polymerase II, a substrate of CDK7, in circulating lymphocytes and tumor tissue. In TNBC expansion, one PR (duration 337 days) and clinical benefit rate at 24 weeks (CBR) of 20.0% (4/20) is achieved. In combination with fulvestrant, 3 patients achieve PR with CBR 36.0% (9/25); in patients without detectable TP53-mutation CBR is 47.4% (9/19). In this study, samuraciclib exhibits tolerable safety and PK is supportive of once-daily oral administration. Clinical activity in TNBC and HR+/HER2-breast cancer post-CDK4/6-inhibitor settings warrants further evaluation.
Collapse
Affiliation(s)
- R C Coombes
- Imperial College, South Kensington, London, UK
| | - Sacha Howell
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, The University of Manchester and The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Simon R Lord
- Early Phase Clinical Trials Unit, Department of Oncology, University of Oxford, Oxford, UK
| | - Laura Kenny
- Imperial College, South Kensington, London, UK
| | - Janine Mansi
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Zahi Mitri
- OHSU Knight Cancer Institute, Portland, OR, USA
| | | | | | | | | | | | - Jason Melear
- Baylor University Medical Center, Texas Oncology, Dallas, TX, USA
| | | | | | | | | | | | | | - Simak Ali
- Imperial College, South Kensington, London, UK
| | | | | | | | - Matthew G Krebs
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, The University of Manchester and The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
| |
Collapse
|
31
|
Park YH, Im SA, Park K, Wen J, Lee KH, Choi YL, Lee WC, Min A, Bonato V, Park S, Ram S, Lee DW, Kim JY, Lee SK, Lee WW, Lee J, Kim M, Kim HS, Weinrich SL, Ryu HS, Kim TY, Dann S, Kim YJ, Fernandez DR, Koh J, Wang S, Park SY, Deng S, Powell E, Ravi RK, Bienkowska J, Rejto PA, Park WY, Kan Z. Longitudinal multi-omics study of palbociclib resistance in HR-positive/HER2-negative metastatic breast cancer. Genome Med 2023; 15:55. [PMID: 37475004 PMCID: PMC10360358 DOI: 10.1186/s13073-023-01201-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 06/05/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND Cyclin-dependent kinase 4/6 inhibitor (CDK4/6) therapy plus endocrine therapy (ET) is an effective treatment for patients with hormone receptor-positive/human epidermal receptor 2-negative metastatic breast cancer (HR+/HER2- MBC); however, resistance is common and poorly understood. A comprehensive genomic and transcriptomic analysis of pretreatment and post-treatment tumors from patients receiving palbociclib plus ET was performed to delineate molecular mechanisms of drug resistance. METHODS Tissue was collected from 89 patients with HR+/HER2- MBC, including those with recurrent and/or metastatic disease, receiving palbociclib plus an aromatase inhibitor or fulvestrant at Samsung Medical Center and Seoul National University Hospital from 2017 to 2020. Tumor biopsy and blood samples obtained at pretreatment, on-treatment (6 weeks and/or 12 weeks), and post-progression underwent RNA sequencing and whole-exome sequencing. Cox regression analysis was performed to identify the clinical and genomic variables associated with progression-free survival. RESULTS Novel markers associated with poor prognosis, including genomic scar features caused by homologous repair deficiency (HRD), estrogen response signatures, and four prognostic clusters with distinct molecular features were identified. Tumors with TP53 mutations co-occurring with a unique HRD-high cluster responded poorly to palbociclib plus ET. Comparisons of paired pre- and post-treatment samples revealed that tumors became enriched in APOBEC mutation signatures, and many switched to aggressive molecular subtypes with estrogen-independent characteristics. We identified frequent genomic alterations upon disease progression in RB1, ESR1, PTEN, and KMT2C. CONCLUSIONS We identified novel molecular features associated with poor prognosis and molecular mechanisms that could be targeted to overcome resistance to CKD4/6 plus ET. TRIAL REGISTRATION ClinicalTrials.gov, NCT03401359. The trial was posted on 18 January 2018 and registered prospectively.
Collapse
Affiliation(s)
- Yeon Hee Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
- Department of Health Science and Technology, School of Medicine & SAIHST, Sungkyunkwan University, Seoul, Republic of Korea.
| | - Seock-Ah Im
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea.
| | - Kyunghee Park
- Samsung Genome Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Ji Wen
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Kyung-Hun Lee
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yoon-La Choi
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Health Science and Technology, School of Medicine & SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
| | - Won-Chul Lee
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Ahrum Min
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | | | - Seri Park
- Department of Health Science and Technology, School of Medicine & SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
| | - Sripad Ram
- Drug Safety R&D, Pfizer Inc, San Diego, CA, USA
| | - Dae-Won Lee
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Yeon Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Su Kyeong Lee
- Research Center for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Won-Woo Lee
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jisook Lee
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Miso Kim
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | | | | | - Han Suk Ryu
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Tae Yong Kim
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Stephen Dann
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Yu-Jin Kim
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | | | - Jiwon Koh
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Shuoguo Wang
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Song Yi Park
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | | | - Eric Powell
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | | | | | - Paul A Rejto
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA
| | - Woong-Yang Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Health Science and Technology, School of Medicine & SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
- Samsung Genome Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Zhengyan Kan
- Oncology Research & Development, Pfizer Inc, San Diego, CA, USA.
| |
Collapse
|
32
|
Fuentes-Antrás J, Martínez-Rodríguez A, Guevara-Hoyer K, López-Cade I, Lorca V, Pascual A, de Luna A, Ramírez-Ruda C, Swindell J, Flores P, Lluch A, Cescon DW, Pérez-Segura P, Ocaña A, Jones F, Moreno F, García-Barberán V, García-Sáenz JÁ. Real-World Use of Highly Sensitive Liquid Biopsy Monitoring in Metastatic Breast Cancer Patients Treated with Endocrine Agents after Exposure to Aromatase Inhibitors. Int J Mol Sci 2023; 24:11419. [PMID: 37511178 PMCID: PMC10379453 DOI: 10.3390/ijms241411419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Endocrine-resistant, hormone receptor-positive, and HER2-negative (HR+/HER2-) metastatic breast cancer (mBC) is largely governed by acquired mutations in the estrogen receptor, which promote ligand-independent activation, and by truncal alterations in the PI3K signaling pathway, with a broader range of gene alterations occurring with less prevalence. Circulating tumor DNA (ctDNA)-based technologies are progressively permeating the clinical setting. However, their utility for serial monitoring has been hindered by their significant costs, inter-technique variability, and real-world patient heterogeneity. We interrogated a longitudinal collection of 180 plasma samples from 75 HR+/HER2- mBC patients who progressed or relapsed after exposure to aromatase inhibitors and were subsequently treated with endocrine therapy (ET) by means of highly sensitive and affordable digital PCR and SafeSEQ sequencing. Baseline PIK3CA and TP53 mutations were prognostic of a shorter progression-free survival in our population. Mutant PIK3CA was prognostic in the subset of patients receiving fulvestrant monotherapy after progression to a CDK4/6 inhibitor (CDK4/6i)-containing regimen, and its suppression was predictive in a case of long-term benefit with alpelisib. Mutant ESR1 was prognostic in patients who did not receive concurrent CDK4/6i, an impact influenced by the variant allele frequency, and its early suppression was strongly predictive of efficacy and associated with long-term benefit in the whole cohort. Mutations in ESR1, TP53, and KRAS emerged as putative drivers of acquired resistance. These findings collectively contribute to the characterization of longitudinal ctDNA in real-world cases of HR+/HER2- mBC previously exposed to aromatase inhibitors and support ongoing studies either targeting actionable alterations or leveraging the ultra-sensitive tracking of ctDNA.
Collapse
Affiliation(s)
- Jesús Fuentes-Antrás
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
- Experimental Therapeutics Unit, Hospital Clínico San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain
| | | | - Kissy Guevara-Hoyer
- Department of Clinical Immunology, Hospital Clínico San Carlos, IdISSC, 28040 Madrid, Spain
- Cancer Immunomonitoring and Immune-Mediated Diseases Unit, Hospital Clínico San Carlos, IdISSC, 28040 Madrid, Spain
| | - Igor López-Cade
- Experimental Therapeutics Unit, Hospital Clínico San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain
- Molecular Oncology Laboratory, IdISSC, 28040 Madrid, Spain
| | - Víctor Lorca
- Molecular Oncology Laboratory, IdISSC, 28040 Madrid, Spain
| | - Alejandro Pascual
- Department of Pathology, Hospital Clínico San Carlos, 28040 Madrid, Spain
| | - Alicia de Luna
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Carmen Ramírez-Ruda
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Jennifer Swindell
- Medical Affairs Division, Sysmex Inostics, Inc., Baltimore, MD 21205, USA
| | - Paloma Flores
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Ana Lluch
- INCLIVA Research Institute, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
| | - David W Cescon
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5S A18, Canada
| | - Pedro Pérez-Segura
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Alberto Ocaña
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
- Experimental Therapeutics Unit, Hospital Clínico San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain
| | - Frederick Jones
- Medical Affairs Division, Sysmex Inostics, Inc., Baltimore, MD 21205, USA
| | - Fernando Moreno
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | | | - José Ángel García-Sáenz
- Department of Medical Oncology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| |
Collapse
|
33
|
Zhao S, Zhang H, Yang N, Yang J. A narrative review about CDK4/6 inhibitors in the setting of drug resistance: updates on biomarkers and therapeutic strategies in breast cancer. Transl Cancer Res 2023; 12:1617-1634. [PMID: 37434680 PMCID: PMC10331716 DOI: 10.21037/tcr-22-2807] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 05/11/2023] [Indexed: 07/13/2023]
Abstract
Background and Objective Previous studies have demonstrated that cyclin-dependent kinase 4/6 (CDK4/6) inhibitors combined with endocrine therapy are able to effectively improve the prognosis of hormone receptor positive (HR+), human epidermal growth factor receptor 2 (HER2) negative advanced breast cancer (ABC). Five CDK4/6 inhibitors, palbociclib, ribociclib, abemaciclib, dalpiciclib, and trilaciclib have been approved for the treatment of this breast cancer subset at present. The efficacy and safety profile of adding these CDK4/6 inhibitors to endocrine therapies in HR+ breast cancer has been proved in a number of clinical trials. Besides, extending the application of CDK4/6 inhibitors to HER2+ or triple negative breast cancers (TNBCs) has also led to some clinical benefits. Methods A comprehensive, non-systematic review of the latest literature about CDK4/6 inhibitors resistance in breast cancer was conducted. The examined database was PubMed/MEDLINE, and the last search was run on October 1, 2022. Key Content and Findings In this review, the generation of CDK4/6 inhibitors resistance is related to gene alteration, pathway dysregulation, and tumor microenvironment change. With a deeper insight in the mechanisms of CDK4/6 inhibitor resistance, some biomarkers have presented the potential to predict drug resistance and showed prognostic value. Furthermore, in preclinical studies, some modified treatment strategies based on CDK4/6 inhibitors exhibited effectiveness on drug-resistant tumors, suggesting a preventable or reversible drug-resistant status. Conclusions This review clarified the current knowledge about mechanisms, the biomarkers to overcome the drug resistance of CDK4/6 inhibitors, and the latest clinical progresses about CDK4/6 inhibitors. Possible approaches to overcome CDK4/6 inhibitors resistance were further discussed. For example, using another CDK4/6 inhibitor, PI3K inhibitor, mTOR inhibitor, or a novel drug.
Collapse
Affiliation(s)
- Shidi Zhao
- Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Precision Medicine Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Department of Medical Oncology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Haochen Zhang
- Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Precision Medicine Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Department of Medical Oncology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Na Yang
- Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Precision Medicine Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Department of Medical Oncology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jin Yang
- Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Precision Medicine Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Department of Medical Oncology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| |
Collapse
|
34
|
Chen X, Shen K. Dalpiciclib in advanced breast cancer. Lancet Oncol 2023; 24:578-579. [PMID: 37269836 DOI: 10.1016/s1470-2045(23)00228-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/05/2023]
Affiliation(s)
- Xiaosong Chen
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
| | - Kunwei Shen
- Department of General Surgery, Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| |
Collapse
|
35
|
He W, Demas DM, Shajahan-Haq AN, Baumann WT. Modeling breast cancer proliferation, drug synergies, and alternating therapies. iScience 2023; 26:106714. [PMID: 37234088 PMCID: PMC10206440 DOI: 10.1016/j.isci.2023.106714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/12/2023] [Accepted: 04/18/2023] [Indexed: 05/27/2023] Open
Abstract
Estrogen receptor positive (ER+) breast cancer is responsive to a number of targeted therapies used clinically. Unfortunately, the continuous application of targeted therapy often results in resistance, driving the consideration of combination and alternating therapies. Toward this end, we developed a mathematical model that can simulate various mono, combination, and alternating therapies for ER + breast cancer cells at different doses over long time scales. The model is used to look for optimal drug combinations and predicts a significant synergism between Cdk4/6 inhibitors in combination with the anti-estrogen fulvestrant, which may help explain the clinical success of adding Cdk4/6 inhibitors to anti-estrogen therapy. Furthermore, the model is used to optimize an alternating treatment protocol so it works as well as monotherapy while using less total drug dose.
Collapse
Affiliation(s)
- Wei He
- Program in Genetics, Bioinformatics, and Computational Biology, VT BIOTRANS, Virginia Tech, Blacksburg, VA 24061, USA
| | - Diane M. Demas
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Ayesha N. Shajahan-Haq
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - William T. Baumann
- Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| |
Collapse
|
36
|
Brett JO, Dubash TD, Johnson GN, Niemierko A, Mariotti V, Kim LS, Xi J, Pandey A, Dunne S, Nasrazadani A, Lloyd MR, Kambadakone A, Spring LM, Micalizzi DS, Onozato ML, Che D, Nayar U, Brufsky A, Kalinsky K, Ma CX, O'Shaughnessy J, Han HS, Iafrate AJ, Ryan LY, Juric D, Moy B, Ellisen LW, Maheswaran S, Wagle N, Haber DA, Bardia A, Wander SA. A Gene Panel Associated With Abemaciclib Utility in ESR1-Mutated Breast Cancer After Prior Cyclin-Dependent Kinase 4/6-Inhibitor Progression. JCO Precis Oncol 2023; 7:e2200532. [PMID: 37141550 PMCID: PMC10530719 DOI: 10.1200/po.22.00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/16/2023] [Accepted: 02/27/2023] [Indexed: 05/06/2023] Open
Abstract
PURPOSE For patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer (MBC), first-line treatment is endocrine therapy (ET) plus cyclin-dependent kinase 4/6 inhibition (CDK4/6i). After disease progression, which often comes with ESR1 resistance mutations (ESR1-MUT), which therapies to use next and for which patients are open questions. An active area of exploration is treatment with further CDK4/6i, particularly abemaciclib, which has distinct pharmacokinetic and pharmacodynamic properties compared with the other approved CDK4/6 inhibitors, palbociclib and ribociclib. We investigated a gene panel to prognosticate abemaciclib susceptibility in patients with ESR1-MUT MBC after palbociclib progression. METHODS We examined a multicenter retrospective cohort of patients with ESR1-MUT MBC who received abemaciclib after disease progression on ET plus palbociclib. We generated a panel of CDK4/6i resistance genes and compared abemaciclib progression-free survival (PFS) in patients without versus with mutations in this panel (CDKi-R[-] v CDKi-R[+]). We studied how ESR1-MUT and CDKi-R mutations affect abemaciclib sensitivity of immortalized breast cancer cells and patient-derived circulating tumor cell lines in culture. RESULTS In ESR1-MUT MBC with disease progression on ET plus palbociclib, the median PFS was 7.0 months for CDKi-R(-) (n = 17) versus 3.5 months for CDKi-R(+) (n = 11), with a hazard ratio of 2.8 (P = .03). In vitro, CDKi-R alterations but not ESR1-MUT induced abemaciclib resistance in immortalized breast cancer cells and were associated with resistance in circulating tumor cells. CONCLUSION For ESR1-MUT MBC with resistance to ET and palbociclib, PFS on abemaciclib is longer for patients with CDKi-R(-) than CDKi-R(+). Although a small and retrospective data set, this is the first demonstration of a genomic panel associated with abemaciclib sensitivity in the postpalbociclib setting. Future directions include testing and improving this panel in additional data sets, to guide therapy selection for patients with HR+/HER2- MBC.
Collapse
Affiliation(s)
- Jamie O. Brett
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Taronish D. Dubash
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | | | - Andrzej Niemierko
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | | | - Leslie S.L. Kim
- Baylor University Medical Center Charles A. Sammons Cancer Center, Texas Oncology, Dallas, TX
| | - Jing Xi
- Division of Oncology, Washington University School of Medicine, St Louis, MO
| | - Apurva Pandey
- Division of Hematology/Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Siobhan Dunne
- Baylor University Medical Center Charles A. Sammons Cancer Center, Texas Oncology, Dallas, TX
| | - Azadeh Nasrazadani
- Division of Hematology/Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA
- Department of Breast Medical Oncology, MD Anderson Cancer Center, Houston, TX
| | - Maxwell R. Lloyd
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Avinash Kambadakone
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Laura M. Spring
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Douglas S. Micalizzi
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Maristela L. Onozato
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Dante Che
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Utthara Nayar
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Adam Brufsky
- Division of Hematology/Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Kevin Kalinsky
- Department of Medicine, Columbia University Irving Medical Center, New York, NY
- Emory University Winship Cancer Institute, Atlanta, GA
| | - Cynthia X. Ma
- Division of Oncology, Washington University School of Medicine, St Louis, MO
| | - Joyce O'Shaughnessy
- Baylor University Medical Center Charles A. Sammons Cancer Center, Texas Oncology, Dallas, TX
| | | | - Anthony J. Iafrate
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Lianne Y. Ryan
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Dejan Juric
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Beverly Moy
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Leif W. Ellisen
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Shyamala Maheswaran
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Nikhil Wagle
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Daniel A. Haber
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
- Howard Hughes Medical Institute, Chevy Chase, MD
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - Seth A. Wander
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| |
Collapse
|
37
|
Davis AA, Luo J, Zheng T, Dai C, Dong X, Tan L, Suresh R, Ademuyiwa FO, Rigden C, Rearden TP, Clifton K, Weilbaecher K, Frith A, Tandra PK, Summa T, Haas B, Thomas S, Hernandez-Aya LF, Peterson LL, Wang X, Luo SJ, Zhou K, Du P, Jia S, King BL, Krishnamurthy J, Ma CX. Genomic Complexity Predicts Resistance to Endocrine Therapy and CDK4/6 Inhibition in Hormone Receptor-Positive (HR+)/HER2-Negative Metastatic Breast Cancer. Clin Cancer Res 2023; 29:1719-1729. [PMID: 36693175 PMCID: PMC10150240 DOI: 10.1158/1078-0432.ccr-22-2177] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/29/2022] [Accepted: 01/20/2023] [Indexed: 01/25/2023]
Abstract
PURPOSE Clinical biomarkers to identify patients unlikely to benefit from CDK4/6 inhibition (CDK4/6i) in combination with endocrine therapy (ET) are lacking. We implemented a comprehensive circulating tumor DNA (ctDNA) analysis to identify genomic features for predicting and monitoring treatment resistance. EXPERIMENTAL DESIGN ctDNA was isolated from 216 plasma samples collected from 51 patients with hormone receptor-positive (HR+)/HER2-negative (HER2-) metastatic breast cancer (MBC) on a phase II trial of palbociclib combined with letrozole or fulvestrant (NCT03007979). Boosted whole-exome sequencing (WES) was performed at baseline and clinical progression to evaluate genomic alterations, mutational signatures, and blood tumor mutational burden (bTMB). Low-pass whole-genome sequencing was performed at baseline and serial timepoints to assess blood copy-number burden (bCNB). RESULTS High bTMB and bCNB were associated with lack of clinical benefit and significantly shorter progression-free survival (PFS) compared with patients with low bTMB or low bCNB (all P < 0.05). Dominant APOBEC signatures were detected at baseline exclusively in cases with high bTMB (5/13, 38.5%) versus low bTMB (0/37, 0%; P = 0.0006). Alterations in ESR1 were enriched in samples with high bTMB (P = 0.0005). There was a high correlation between bTMB determined by WES and bTMB determined using a 600-gene panel (R = 0.98). During serial monitoring, an increase in bCNB score preceded radiographic progression in 12 of 18 (66.7%) patients. CONCLUSIONS Genomic complexity detected by noninvasive profiling of bTMB and bCNB predicted poor outcomes in patients treated with ET and CDK4/6i and identified early disease progression before imaging. Novel treatment strategies including immunotherapy-based combinations should be investigated in this population.
Collapse
Affiliation(s)
- Andrew A. Davis
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Jingqin Luo
- Division of Public Health Science, Department of Surgery, Biostatistics Shared Resource, Washington University in St. Louis, Missouri
| | | | - Chao Dai
- Predicine, Inc., Hayward, California
| | | | - Lu Tan
- Predicine, Inc., Hayward, California
| | - Rama Suresh
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Foluso O. Ademuyiwa
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Caron Rigden
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Timothy P. Rearden
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Katherine Clifton
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Katherine Weilbaecher
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Ashley Frith
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Pavan K. Tandra
- Division of Oncology/Hematology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Tracy Summa
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Brittney Haas
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Shana Thomas
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Leonel F. Hernandez-Aya
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | - Lindsay L. Peterson
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| | | | | | | | - Pan Du
- Predicine, Inc., Hayward, California
| | | | | | - Jairam Krishnamurthy
- Division of Oncology/Hematology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Cynthia X. Ma
- Division of Oncology, Department of Medicine, Washington University School of Medicine in St. Louis, Missouri
| |
Collapse
|
38
|
Abstract
The era of genomic medicine provides an opportunity for pathologists to offer greater detail about the molecular underpinnings of a patient's cancer and thereby more targeted therapeutic options. In this review article, the role of genomics in breast cancer pathology is discussed, as it pertains to risk management, classification of special tumor types, predictive and prognostic testing, identification of actionable therapeutic targets, and monitoring for disease progression or development of treatment resistance.
Collapse
|
39
|
Biomarkers of Response and Resistance to CDK4/6 Inhibitors in Breast Cancer: Hints from Liquid Biopsy and microRNA Exploration. Int J Mol Sci 2022; 23:ijms232314534. [PMID: 36498861 PMCID: PMC9739115 DOI: 10.3390/ijms232314534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022] Open
Abstract
New evidence on the impact of dysregulation of the CDK4/6 pathway on breast cancer (BC) cell proliferation has led to the development of selective CDK4/6 inhibitors, which have radically changed the management of advanced BC. Despite the improved outcomes obtained by CDK4/6 inhibitors, approximately 10% of tumors show primary resistance, whereas acquired resistance appears to be an almost ubiquitous occurrence, leading to treatment failure. The identification of differentially expressed genes or genomic mutational signatures able to predict sensitivity or resistance to CDK4/6 inhibitors is critical for medical decision making and for avoiding or counteracting primary or acquired resistance against CDK4/6 inhibitors. In this review, we summarize the main mechanisms of resistance to CDK4/6 inhibitors, focusing on those associated with potentially relevant biomarkers that could predict patients' response/resistance to treatment. Recent advances in biomarker identification are discussed, including the potential use of liquid biopsy for BC management and the role of multiple microRNAs as molecular predictors of cancer cell sensitivity and resistance to CDK4/6 inhibitors.
Collapse
|
40
|
Mechanisms of Resistance to CDK4/6 Inhibitors in Hormone Receptor-Positive (HR +) Breast Cancer: Spotlight on Convergent CDK6 Upregulation and Immune Signaling. CURRENT BREAST CANCER REPORTS 2022. [DOI: 10.1007/s12609-022-00461-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
41
|
Palafox M, Monserrat L, Bellet M, Villacampa G, Gonzalez-Perez A, Oliveira M, Brasó-Maristany F, Ibrahimi N, Kannan S, Mina L, Herrera-Abreu MT, Òdena A, Sánchez-Guixé M, Capelán M, Azaro A, Bruna A, Rodríguez O, Guzmán M, Grueso J, Viaplana C, Hernández J, Su F, Lin K, Clarke RB, Caldas C, Arribas J, Michiels S, García-Sanz A, Turner NC, Prat A, Nuciforo P, Dienstmann R, Verma CS, Lopez-Bigas N, Scaltriti M, Arnedos M, Saura C, Serra V. High p16 expression and heterozygous RB1 loss are biomarkers for CDK4/6 inhibitor resistance in ER + breast cancer. Nat Commun 2022; 13:5258. [PMID: 36071033 PMCID: PMC9452562 DOI: 10.1038/s41467-022-32828-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/17/2022] [Indexed: 12/27/2022] Open
Abstract
CDK4/6 inhibitors combined with endocrine therapy have demonstrated higher antitumor activity than endocrine therapy alone for the treatment of advanced estrogen receptor-positive breast cancer. Some of these tumors are de novo resistant to CDK4/6 inhibitors and others develop acquired resistance. Here, we show that p16 overexpression is associated with reduced antitumor activity of CDK4/6 inhibitors in patient-derived xenografts (n = 37) and estrogen receptor-positive breast cancer cell lines, as well as reduced response of early and advanced breast cancer patients to CDK4/6 inhibitors (n = 89). We also identified heterozygous RB1 loss as biomarker of acquired resistance and poor clinical outcome. Combination of the CDK4/6 inhibitor ribociclib with the PI3K inhibitor alpelisib showed antitumor activity in estrogen receptor-positive non-basal-like breast cancer patient-derived xenografts, independently of PIK3CA, ESR1 or RB1 mutation, also in drug de-escalation experiments or omitting endocrine therapy. Our results offer insights into predicting primary/acquired resistance to CDK4/6 inhibitors and post-progression therapeutic strategies.
Collapse
Affiliation(s)
- Marta Palafox
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Laia Monserrat
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Meritxell Bellet
- Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Medical Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Guillermo Villacampa
- Oncology Data Science Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Abel Gonzalez-Perez
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Research Program on Biomedical Informatics, Universitat Pompeu Fabra, Barcelona, Spain
| | - Mafalda Oliveira
- Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Medical Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Fara Brasó-Maristany
- Translational Genomics and Targeted Therapies in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Nusaibah Ibrahimi
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Villejuif, France
- Oncostat U1018, Inserm, University Paris-Saclay, Villejuif, France
| | | | - Leonardo Mina
- Medica Scientia Innovation Research (MedSIR), Barcelona, Spain
| | | | - Andreu Òdena
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Mònica Sánchez-Guixé
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Marta Capelán
- Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Medical Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Analía Azaro
- Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Medical Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Alejandra Bruna
- Preclinical Modelling of Pediatric Cancer Evolution Group, The Institute of Cancer Research, London, UK
| | - Olga Rodríguez
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Marta Guzmán
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Judit Grueso
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Cristina Viaplana
- Oncology Data Science Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Javier Hernández
- Translational Molecular Pathology, Vall d'Hebron Institute of Research (VHIR), Barcelona, Spain
| | - Faye Su
- Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Kui Lin
- Genentech, Inc., South San Francisco, California, USA
| | - Robert B Clarke
- Breast Biology Group, Manchester Breast Centre, Manchester, UK
| | | | - Joaquín Arribas
- CIBERONC, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Growth Factors Laboratory, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Stefan Michiels
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Villejuif, France
- Oncostat U1018, Inserm, University Paris-Saclay, Villejuif, France
| | | | | | - Aleix Prat
- Translational Genomics and Targeted Therapies in Solid Tumors, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
- University of Barcelona, Barcelona, Spain
- Department of Medical Oncology, Hospital Clinic, Barcelona, Spain
- SOLTI Breast Cancer Research Group, Barcelona, Spain
- Department of Oncology, IOB Institute of Oncology, Barcelona, Spain
| | - Paolo Nuciforo
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Rodrigo Dienstmann
- Oncology Data Science Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Chandra S Verma
- Bioinformatics Institute (A*STAR), Singapore, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Nuria Lopez-Bigas
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Research Program on Biomedical Informatics, Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Maurizio Scaltriti
- Departments of Pathology and Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, USA
| | - Monica Arnedos
- Department of Medical Oncology, Gustave Roussy, Villejuif, France
- Inserm Unit U981, Villejuif, France
| | - Cristina Saura
- Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Department of Medical Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Violeta Serra
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain.
- CIBERONC, Vall d'Hebron Institute of Oncology, Barcelona, Spain.
| |
Collapse
|
42
|
Liquid Biopsy as a Tool for the Diagnosis, Treatment, and Monitoring of Breast Cancer. Int J Mol Sci 2022; 23:ijms23179952. [PMID: 36077348 PMCID: PMC9456236 DOI: 10.3390/ijms23179952] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/24/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Breast cancer (BC) is a highly heterogeneous disease. The treatment of BC is complicated owing to intratumoral complexity. Tissue biopsy and immunohistochemistry are the current gold standard techniques to guide breast cancer therapy; however, these techniques do not assess tumoral molecular heterogeneity. Personalized medicine aims to overcome these biological and clinical complexities. Advances in techniques and computational analyses have enabled increasingly sensitive, specific, and accurate application of liquid biopsy. Such progress has ushered in a new era in precision medicine, where the objective is personalized treatment of breast cancer, early screening, accurate diagnosis and prognosis, relapse detection, longitudinal monitoring, and drug selection. Liquid biopsy can be defined as the sampling of components of tumor cells that are released from a tumor and/or metastatic deposits into the blood, urine, feces, saliva, and other biological substances. Such components include circulating tumor cells (CTCs), circulating tumor DNA (ctDNA) or circulating tumor RNA (ctRNA), platelets, and exosomes. This review aims to highlight the role of liquid biopsy in breast cancer and precision medicine.
Collapse
|
43
|
Mo H, Liu X, Xue Y, Chen H, Guo S, Li Z, Wang S, Li C, Han J, Fu M, Song Y, Li D, Ma F. S6K1 amplification confers innate resistance to CDK4/6 inhibitors through activating c-Myc pathway in patients with estrogen receptor-positive breast cancer. Mol Cancer 2022; 21:171. [PMID: 36042494 PMCID: PMC9426012 DOI: 10.1186/s12943-022-01642-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/19/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND CDK4/6 inhibitors combined with endocrine therapy has become the preferred treatment approach for patients with estrogen receptor-positive metastatic breast cancer. However, the predictive biomarkers and mechanisms of innate resistance to CDK4/6 inhibitors remain largely unknown. We sought to elucidate the molecular hallmarks and therapeutically actionable features of patients with resistance to CDK4/6 inhibitors. METHODS A total of 36 patients received palbociclib and endocrine therapy were included in this study as the discovery cohort. Next-generation sequencing of circulating tumour DNA in these patients was performed to evaluate somatic alterations associated with innate resistance to palbociclib. Then the candidate biomarker was validated in another independent cohort of 104 patients and publicly available datasets. The resistance was verified in parental MCF-7 and T47D cells, as well as their derivatives with small interfering RNA transfection and lentivirus infection. The relevant mechanism was examined by RNA sequencing, chromatin immunoprecipitation and luciferase assay. Patient-derived organoid and patient-derived xenografts studies were utilized to evaluated the antitumor activity of rational combinations. RESULTS In the discovery cohort, S6K1 amplification (3/35, 9%) was identified as an important reason for innate resistance to CDK4/6 inhibitors. In the independent cohort, S6K1 was overexpressed in 15/104 (14%) patients. In those who had received palbociclib treatment, patients with high-expressed S6K1 had significantly worse progression free survival than those with low S6K1 expression (hazard ratio = 3.0, P = 0.0072). Meta-analysis of public data revealed that patients with S6K1 amplification accounted for 12% of breast cancers. Breast cancer patients with high S6K1 expression had significantly worse relapse-free survival (hazard ratio = 1.31, P < 0.0001). In breast cancer cells, S6K1 overexpression, caused by gene amplification, was sufficient to promote resistance to palbociclib. Mechanistically, S6K1 overexpression increased the expression levels of G1/S transition-related proteins and the phosphorylation of Rb, mainly through the activation of c-Myc pathway. Notably, this resistance could be abrogated by the addition of mTOR inhibitor, which blocked the upstream of S6K1, in vitro and in vivo. CONCLUSIONS S6K1 amplification is an important mechanism of innate resistance to palbociclib in breast cancers. Breast cancers with S6K1 amplification could be considered for combinations of CDK4/6 and S6K1 antagonists.
Collapse
Affiliation(s)
- Hongnan Mo
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Xuefeng Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Yu Xue
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Hongyan Chen
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Shichao Guo
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Zhangfu Li
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Shuang Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Caiming Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jiashu Han
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Ming Fu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Yongmei Song
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Dan Li
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
| | - Fei Ma
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
| |
Collapse
|
44
|
Cristofanilli M, Rugo HS, Im SA, Slamon DJ, Harbeck N, Bondarenko I, Masuda N, Colleoni M, DeMichele A, Loi S, Iwata H, O'Leary B, André F, Loibl S, Bananis E, Liu Y, Huang X, Kim S, Lechuga Frean MJ, Turner NC. Overall Survival with Palbociclib and Fulvestrant in Women with HR+/HER2- ABC: Updated Exploratory Analyses of PALOMA-3, a Double-blind, Phase III Randomized Study. Clin Cancer Res 2022; 28:3433-3442. [PMID: 35552673 PMCID: PMC9662922 DOI: 10.1158/1078-0432.ccr-22-0305] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/01/2022] [Accepted: 05/09/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE To conduct an updated exploratory analysis of overall survival (OS) with a longer median follow-up of 73.3 months and evaluate the prognostic value of molecular analysis by circulating tumor DNA (ctDNA). PATIENTS AND METHODS Patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer (ABC) were randomized 2:1 to receive palbociclib (125 mg orally/day; 3/1 week schedule) and fulvestrant (500 mg intramuscularly) or placebo and fulvestrant. This OS analysis was performed when 75% of enrolled patients died (393 events in 521 randomized patients). ctDNA analysis was performed among patients who provided consent. RESULTS At the data cutoff (August 17, 2020), 258 and 135 deaths occurred in the palbociclib and placebo groups, respectively. The median OS [95% confidence interval (CI)] was 34.8 months (28.8-39.9) in the palbociclib group and 28.0 months (23.5-33.8) in the placebo group (stratified hazard ratio, 0.81; 95% CI, 0.65-0.99). The 6-year OS rate (95% CI) was 19.1% (14.9-23.7) and 12.9% (8.0-19.1) in the palbociclib and placebo groups, respectively. Favorable OS with palbociclib plus fulvestrant compared with placebo plus fulvestrant was observed in most subgroups, particularly in patients with endocrine-sensitive disease, no prior chemotherapy for ABC and low circulating tumor fraction and regardless of ESR1, PIK3CA, or TP53 mutation status. No new safety signals were identified. CONCLUSIONS The clinically meaningful improvement in OS associated with palbociclib plus fulvestrant was maintained with >6 years of follow-up in patients with HR+/HER2- ABC, supporting palbociclib plus fulvestrant as a standard of care in these patients.
Collapse
Affiliation(s)
- Massimo Cristofanilli
- Weill Cornell Medicine, New York, New York
- Corresponding Author: Massimo Cristofanilli, Medicine-Hematology & Oncology, Weill Cornell Medicine, 420 E 70th St, New York, NY 10021. Phone: 646-962-2330; E-mail:
| | - Hope S. Rugo
- University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Seock-Ah Im
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of South Korea
| | - Dennis J. Slamon
- David Geffen School of Medicine at University of California Los Angeles, Santa Monica, California
| | - Nadia Harbeck
- Brustzentrum, Frauenklinik and CCC Munich, LMU University Hospital, Munich, Germany
| | - Igor Bondarenko
- Dnipropetrovsk Medical Academy, City Multiple-Discipline Clinical Hospital #4, Dnipropetrovsk, Ukraine
| | - Norikazu Masuda
- Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan
| | | | - Angela DeMichele
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sherene Loi
- Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
| | - Hiroji Iwata
- Aichi Cancer Center Hospital, Chikusa-ku, Nagoya, Japan
| | - Ben O'Leary
- Royal Marsden Hospital and Institute of Cancer Research, London, United Kingdom
| | | | | | | | - Yuan Liu
- Pfizer Inc, San Diego, California
| | | | | | | | - Nicholas C. Turner
- Royal Marsden Hospital and Institute of Cancer Research, London, United Kingdom
| |
Collapse
|
45
|
Lindeman GJ, Fernando TM, Bowen R, Jerzak KJ, Song X, Decker T, Boyle F, McCune S, Armstrong A, Shannon C, Bertelli G, Chang CW, Desai R, Gupta K, Wilson TR, Flechais A, Bardia A. VERONICA: Randomized Phase II Study of Fulvestrant and Venetoclax in ER-Positive Metastatic Breast Cancer Post-CDK4/6 Inhibitors - Efficacy, Safety, and Biomarker Results. Clin Cancer Res 2022; 28:3256-3267. [PMID: 35583555 PMCID: PMC9662928 DOI: 10.1158/1078-0432.ccr-21-3811] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/16/2021] [Accepted: 05/16/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Despite promising activity in hematopoietic malignancies, efficacy of the B-cell lymphoma 2 (BCL2) inhibitor venetoclax in solid tumors is unknown. We report the prespecified VERONICA primary results, a randomized phase II clinical trial evaluating venetoclax and fulvestrant in estrogen receptor (ER)-positive, HER2-negative metastatic breast cancer, post-cyclin-dependent kinase (CDK) 4/6 inhibitor progression. PATIENTS AND METHODS Pre-/postmenopausal females ≥18 years were randomized 1:1 to venetoclax (800 mg orally daily) plus fulvestrant (500 mg intramuscular; cycle 1: days 1 and 15; subsequent 28-day cycles: day 1) or fulvestrant alone. The primary endpoint was clinical benefit rate (CBR); secondary endpoints were progression-free survival (PFS), overall survival, and safety. Exploratory biomarker analyses included BCL2 and BCL extra-large (BCLXL) tumor expression, and PIK3CA circulating tumor DNA mutational status. RESULTS At primary analysis (cutoff: August 5, 2020; n = 103), venetoclax did not significantly improve CBR [venetoclax plus fulvestrant: 11.8% (n = 6/51; 95% confidence interval (CI), 4.44-23.87); fulvestrant: 13.7% (7/51; 5.70-26.26); risk difference -1.96% (95% CI, -16.86 to 12.94)]. Median PFS was 2.69 months (95% CI, 1.94-3.71) with venetoclax plus fulvestrant versus 1.94 months (1.84-3.55) with fulvestrant (stratified HR, 0.94; 95% CI, 0.61-1.45; P = 0.7853). Overall survival data were not mature. A nonsignificant improvement of CBR and PFS was observed in patients whose tumors had strong BCL2 expression (IHC 3+), a BCL2/BCLXL Histoscore ratio ≥1, or PIK3CA-wild-type status. CONCLUSIONS Our findings do not indicate clinical utility for venetoclax plus fulvestrant in endocrine therapy-resistant, CDK4/6 inhibitor-refractory metastatic breast tumors, but suggest possible increased dependence on BCLXL in this setting.
Collapse
Affiliation(s)
- Geoffrey J. Lindeman
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
- Cancer Biology and Stem Cells Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
- Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
| | - Tharu M. Fernando
- Oncology Biomarker Development, Genentech, Inc., South San Francisco, California
| | - Rebecca Bowen
- Medical Oncology, Royal United Hospitals Bath NHS Foundation Trust, Bath, United Kingdom
| | - Katarzyna J. Jerzak
- Medical Oncology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, Canada
| | - Xinni Song
- Medical Oncology, The Ottawa Hospital Cancer Centre, Ottawa, Canada
| | - Thomas Decker
- Hematology and Oncology, Onkologie Ravensburg, Ravensburg, Germany
| | - Frances Boyle
- Patricia Ritchie Centre for Cancer Care and Research, Mater Hospital, Sydney, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Steve McCune
- Medical Oncology, Wellstar Health System, Marietta, Georgia
| | - Anne Armstrong
- Medical Oncology, The Christie NHS Foundation Trust and the University of Manchester, Manchester, United Kingdom
| | | | | | - Ching-Wei Chang
- PHC and Early Development Oncology Biostatistics, Genentech, Inc., South San Francisco, California
| | - Rupal Desai
- Oncology Biomarker Development, Genentech, Inc., South San Francisco, California
| | - Kushagra Gupta
- Biostatistics, IQVIA RDS (India) Private Ltd, Bangalore, India
| | - Timothy R. Wilson
- Oncology Biomarker Development, Genentech, Inc., South San Francisco, California
| | - Aulde Flechais
- Global PD Senior Clinical Scientist-Oncology, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Aditya Bardia
- Medical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
46
|
Predictors of fulvestrant long-term benefit in hormone receptor-positive/HER2 negative advanced breast cancer. Sci Rep 2022; 12:12789. [PMID: 35896637 PMCID: PMC9329443 DOI: 10.1038/s41598-022-16409-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 11/08/2022] Open
Abstract
We retrospectively investigated in women treated with fulvestrant for HR+/HER2 negative advanced breast cancer clinical, pathological and molecular features associated with long-term benefit from treatment defined as being progression-free at 18 months. Specifically, we analyzed on formalin-fixed paraffin-embedded tumor samples ESR1 and PI3KCA mutations and miRNAs profiles. 59 patients were evaluable (median age of 67 years, range 32-92). 18-month PFS rate was 27%; the lack of visceral metastases significantly predicted the likelihood of being progression-free at 18 months, while PI3KCA mutations, found in 36% of patients, were not associated with 18-month PFS. As of miRNAs, miR-549a, miR-644a, miR-16-5p were negatively while let-7c-5p was positively associated with 18-month PFS. In addition, miR-520d-3p and miR-548g-3p values were significantly lower while miR-603, miR-181a-5p and miR-199a-miR-199b-3p values were significantly higher in patients achieving 18-month PFS. In silico analysis of targets modulated by these two latter groups of miRNAs show that in patients achieving 18-month PFS the Hippo and Wnt signaling pathways were predicted to be upregulated while endocrine resistance was potentially repressed by miR-603, miR-181a-5p and miR-199a-miR-199b-3p. Our results provide additional clues on the molecular mechanisms involved in fulvestrant activity and resistance. Underlying pathways should be further elucidated and confirmed in larger cohorts.
Collapse
|
47
|
Main SC, Cescon DW, Bratman SV. Liquid biopsies to predict CDK4/6 inhibitor efficacy and resistance in breast cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2022; 5:727-748. [PMID: 36176758 PMCID: PMC9511796 DOI: 10.20517/cdr.2022.37] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/04/2022] [Accepted: 05/25/2022] [Indexed: 06/16/2023]
Abstract
Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors combined with endocrine therapy have transformed the treatment of estrogen receptor-positive (ER+) and human epidermal growth factor receptor 2 negative (HER2-) metastatic breast cancer. However, some patients do not respond to this treatment, and patients inevitably develop resistance, such that novel biomarkers are needed to predict primary resistance, monitor treatment response for acquired resistance, and personalize treatment strategies. Circumventing the spatial and temporal limitations of tissue biopsy, newly developed liquid biopsy approaches have the potential to uncover biomarkers that can predict CDK4/6 inhibitor efficacy and resistance in breast cancer patients through a simple blood test. Studies on circulating tumor DNA (ctDNA)-based liquid biopsy biomarkers of CDK4/6 inhibitor resistance have focused primarily on genomic alterations and have failed thus far to identify clear and clinically validated predictive biomarkers, but emerging epigenetic ctDNA methodologies hold promise for further discovery. The present review outlines recent advances and future directions in ctDNA-based biomarkers of CDK4/6 inhibitor treatment response.
Collapse
Affiliation(s)
- Sasha C Main
- Princess Margaret Cancer Centre, University Health Network, Toronto M5G 2C1, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto M5G 1L7, Ontario, Canada
| | - David W Cescon
- Princess Margaret Cancer Centre, University Health Network, Toronto M5G 2C1, Ontario, Canada
- Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto M5S 1A8, Ontario, Canada
| | - Scott V Bratman
- Princess Margaret Cancer Centre, University Health Network, Toronto M5G 2C1, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto M5G 1L7, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto M5T 1P5, Ontario, Canada
| |
Collapse
|
48
|
Abu-Khalaf M, Wang C, Zhang Z, Luo R, Chong W, Silver DP, Fellin F, Jaslow R, Lopez A, Cescon T, Jiang W, Myers R, Wei Q, Li B, Cristofanilli M, Yang H. Genomic Aberrations in Circulating Tumor DNAs from Palbociclib-Treated Metastatic Breast Cancer Patients Reveal a Novel Resistance Mechanism. Cancers (Basel) 2022; 14:cancers14122872. [PMID: 35740538 PMCID: PMC9221535 DOI: 10.3390/cancers14122872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Previously undescribed molecular mechanisms of resistance will emerge with the increased use of cyclin-dependent kinase 4/6 inhibitors in clinical settings. To identify genomic aberrations in circulating tumor DNA associated with treatment resistance in palbociclib-treated metastatic breast cancer (MBC) patients, we collected 35 pre- and post-treatment blood samples from 16 patients with estrogen receptor-positive (ER+) MBC, including 9 with inflammatory breast cancer (IBC). Circulating cell-free DNAs (cfDNAs) were isolated for sequencing using a targeted panel of 91 genes. Our data showed that FBXW7 and CDK6 were more frequently altered in IBC than in non-IBC, whereas conversely, PIK3CA was more frequently altered in non-IBC than in IBC. The cfDNA samples collected at follow-up harbored more mutations than baseline samples. By analyzing paired samples, we observed a higher percentage of patients with mutations in RB1, CCNE1, FBXW7, EZH2, and ARID1A, but a lower proportion of patients with mutated TSC2 at the post-treatment stage when they developed progression. Moreover, acquisition of CCNE1 mutations or loss of TSC2 mutations after treatment initiation conferred an unfavorable prognosis. These data provide insights into the relevance of novel genomic alterations in cfDNA to palbociclib resistance in MBC patients. Future large-scale prospective studies are warranted to confirm our findings.
Collapse
Affiliation(s)
- Maysa Abu-Khalaf
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
- Correspondence: (M.A.-K.); (H.Y.); Tel.: +1-215-503-1195 (M.A.-K.); +1-215-503-6521 (H.Y.)
| | - Chun Wang
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Zhenchao Zhang
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Rui Luo
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Weelic Chong
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Daniel P. Silver
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Frederick Fellin
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Rebecca Jaslow
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - AnaMaria Lopez
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Terrence Cescon
- Department of Hematology Oncology, Reading Hospital, West Reading, PA 19611, USA;
| | - Wei Jiang
- Department of Pathology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Ronald Myers
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
| | - Qiang Wei
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37235, USA; (Q.W.); (B.L.)
| | - Bingshan Li
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37235, USA; (Q.W.); (B.L.)
| | - Massimo Cristofanilli
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA;
| | - Hushan Yang
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (C.W.); (Z.Z.); (R.L.); (W.C.); (D.P.S.); (F.F.); (R.J.); (A.L.); (R.M.)
- Correspondence: (M.A.-K.); (H.Y.); Tel.: +1-215-503-1195 (M.A.-K.); +1-215-503-6521 (H.Y.)
| |
Collapse
|
49
|
Bui TBV, Burgering BMT, Goga A, Rugo HS, van 't Veer LJ. Biomarkers for Cyclin-Dependent Kinase 4/6 Inhibitors in the Treatment of Hormone Receptor-Positive/Human Epidermal Growth Factor Receptor 2-Negative Advanced/Metastatic Breast Cancer: Translation to Clinical Practice. JCO Precis Oncol 2022; 6:e2100473. [PMID: 35666959 DOI: 10.1200/po.21.00473] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Cyclin-dependent kinase 4/6 (CDK4/6) inhibitors have emerged as effective treatments for patients with hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) advanced/metastatic breast cancer (mBC). Dedicated research efforts have been undertaken to find predictive biomarkers of response or resistance to these therapies although no molecular biomarkers for mBC have reached the clinic so far. This review aims to summarize and evaluate the performance of biomarkers in predicting progression-free survival in phase II and III clinical trials of CDK4/6 inhibitors in HR+/HER2- mBC. METHODS For this narrative review, a structured literature search of PubMed, Embase, and the Cochrane library (CENTRAL) was performed. Phase II or III clinical trials of a CDK4/6 inhibitor in patients with HR+/HER2- mBC reporting on at least one molecular biomarker analysis of progression-free survival were included. Publications and selected conference abstracts were included up until November 2021. RESULTS Twenty-two articles reporting biomarker results of 12 clinical trials were included. Retinoblastoma protein status and cyclin E1 mRNA expression were promising baseline biomarkers, whereas PIK3CA circulating tumor DNA ratio on treatment relative to baseline, change in plasma thymidine kinase activity, and circulating tumor cell count were potential dynamic biomarkers of response. A number of biomarkers were unsuccessful, despite a strong mechanistic rationale, and others are still being explored. CONCLUSION Our review of clinical trials showed that there are a number of promising biomarkers at baseline and several dynamic biomarkers that might predict response to CDK4/6 inhibitors. Validation of these findings and assessment of clinical utility are crucial to make the final translation to clinical practice. Better understanding of disease heterogeneity and further elucidation of resistance mechanisms could inform future studies of rationally selected biomarkers.
Collapse
Affiliation(s)
- Tam Binh V Bui
- Faculty of Medicine (SUMMA), Utrecht University/University Medical Center Utrecht, Utrecht, the Netherlands.,Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA
| | - Boudewijn M T Burgering
- Center for Molecular Medicine, Molecular Cancer Research, University Medical Center Utrecht, the Netherlands.,Oncode Institute, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Andrei Goga
- University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA.,Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA.,Department of Medicine, Division of Hematology and Oncology, University of California, San Francisco, San Francisco, CA
| | - Hope S Rugo
- University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA.,Department of Medicine, Division of Hematology and Oncology, University of California, San Francisco, San Francisco, CA
| | - Laura J van 't Veer
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA.,University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA
| |
Collapse
|
50
|
Müller V, Welslau M, Lüftner D, Schütz F, Stickeler E, Fasching PA, Janni W, Thomssen C, Witzel I, Fehm TN, Belleville E, Bader S, Seitz K, Untch M, Thill M, Tesch H, Ditsch N, Lux MP, Aktas B, Banys-Paluchowski M, Schneeweiss A, Harbeck N, Würstlein R, Hartkopf AD, Kolberg HC, Wöckel A. Update Breast Cancer 2022 Part 2 - Advanced Stage Breast Cancer. Geburtshilfe Frauenheilkd 2022; 82:590-600. [PMID: 35903715 PMCID: PMC9315399 DOI: 10.1055/a-1811-6148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/26/2022] [Indexed: 12/11/2022] Open
Abstract
For patients with advanced breast cancer, several novel therapies have emerged in recent years, including CDK4/6 inhibitors, immune checkpoint inhibitors, PARP inhibitors, alpelisib, tucatinib and trastuzumab-deruxtecan, and sacituzumab-govitecan, which have transformed and expanded the therapeutic landscape for patients with advanced breast cancer. Some of these substances have now been approved for use in the early stages of the disease, or are expected to be approved in the near future, so the therapeutic landscape will change once again. Therefore, current scientific efforts are focused on the introduction of new substances and understanding their mechanisms of progression and efficacy. This review summarizes recent developments with reference to recent publications and conferences. Findings on the treatment of patients with HER2-positive breast cancer and brain metastases are presented, as are a number of studies looking at biomarkers in patients with HER2-negative, hormone receptor-positive breast cancer. In particular, the introduction of oral selective estrogen receptor degraders provides new opportunities to establish biomarker-based therapy. Molecular diagnostics is establishing itself as a diagnostic marker and parameter of progression.
Collapse
Affiliation(s)
- Volkmar Müller
- Department of Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
| | | | - Diana Lüftner
- Charité University Hospital, Department of Hematology, Oncology and Tumour Immunology, University Medicine Berlin, Berlin, Germany
| | - Florian Schütz
- Gynäkologie und Geburtshilfe, Diakonissen-Stiftungs-Krankenhaus Speyer, Speyer, Germany
| | - Elmar Stickeler
- Department of Gynecology and Obstetrics, RWTH University Hospital Aachen, Aachen, Germany
| | - Peter A. Fasching
- Erlangen University Hospital, Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen,
Germany
| | - Wolfgang Janni
- Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
| | - Christoph Thomssen
- Department of Gynaecology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | | | - Tanja N. Fehm
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
| | | | - Simon Bader
- Erlangen University Hospital, Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen,
Germany
| | - Katharina Seitz
- Erlangen University Hospital, Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen,
Germany
| | - Michael Untch
- Clinic for Gynecology and Obstetrics, Breast Cancer Center, Genecologic Oncology Center, Helios Klinikum Berlin Buch, Berlin, Germany
| | - Marc Thill
- Agaplesion Markus Krankenhaus, Department of Gynecology and Gynecological Oncology, Frankfurt am Main
| | - Hans Tesch
- Oncology Practice at Bethanien Hospital, Frankfurt am Main, Germany
| | - Nina Ditsch
- Department of Gynecology and Obstetrics, University Hospital Augsburg, Augsburg, Germany
| | - Michael P. Lux
- Klinik für Gynäkologie und Geburtshilfe, Frauenklinik St. Louise, Paderborn, St. Josefs-Krankenhaus, Salzkotten, St. Vincenz Krankenhaus GmbH, Germany
| | - Bahriye Aktas
- Klinik und Poliklinik für Gynäkologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Maggie Banys-Paluchowski
- Department of Gynecology and Obstetrics, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Andreas Schneeweiss
- National Center for Tumor Diseases (NCT), Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
| | - Nadia Harbeck
- Breast Center, Department of Gynecology and Obstetrics and CCC Munich LMU, LMU University Hospital, Munich, Germany
| | - Rachel Würstlein
- Breast Center, Department of Gynecology and Obstetrics and CCC Munich LMU, LMU University Hospital, Munich, Germany
| | - Andreas D. Hartkopf
- Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
| | | | - Achim Wöckel
- Department of Gynecology and Obstetrics, University Hospital Würzburg, Würzburg, Germany
| |
Collapse
|