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Magge T, Rajendran S, Brufsky AM, Foldi J. CDK4/6 inhibitors: The Devil is in the Detail. Curr Oncol Rep 2024; 26:665-678. [PMID: 38713311 DOI: 10.1007/s11912-024-01540-7] [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: 04/29/2024] [Indexed: 05/08/2024]
Abstract
PURPOSE OF REVIEW Update on the most recent clinical evidence on CDK4/6 inhibitors (CDK4/6i) in the treatment of hormone receptor (HR)-positive, human epidermal growth factor receptor (HER)2-negative breast cancer. RECENT FINDINGS Over the past decade, CDK4/6i have become part of the standard of care treatment of patients with both metastatic and high-risk early HR + /HER2- breast cancers. The three available CDK4/6i (palbociclib, ribociclib and abemaciclib) have been extensively studied in combination with endocrine therapy (ET) in metastatic breast cancer (mBC) with consistent prolongation of progression free survival; however, ribociclib has emerged as the preferred first line agent in mBC given overall survival benefit over endocrine monotherapy. In early BC, abemaciclib is the only currently approved agent while ribociclib has early positive clinical trial data. Toxicities and financial burden limit the use of CDK4/6i in all patients and resource-poor settings, and optimal timing of their use in mBC remains unclear. There is considerable evidence for the use of CDK4/6i in metastatic and early HR + /HER2- breast cancer, but knowledge gaps remain, and further research is necessary to better define their optimal use.
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Affiliation(s)
- Tara Magge
- Division of Hematology/Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Sneha Rajendran
- Division of Hematology/Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Adam M Brufsky
- Division of Hematology/Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Julia Foldi
- Division of Hematology/Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- Breast Medical Oncology, Magee Women's Hospital, University of Pittsburgh Medical Center, 300 Halket Street, Suite 3524, Pittsburgh, PA, 15213, USA.
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Schlam I, Corti C, Sammons S, Mittendorf EA, Tolaney SM. Checkpoint inhibition for early-stage hormone receptor-positive breast cancer. Expert Opin Biol Ther 2024; 24:511-520. [PMID: 38913933 DOI: 10.1080/14712598.2024.2370395] [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: 04/03/2024] [Accepted: 06/17/2024] [Indexed: 06/26/2024]
Abstract
INTRODUCTION Most patients with breast cancer have early-stage hormone receptor (HR)-positive, human epidermal growth factor receptor-2 (HER2)-negative disease. Even though the prognosis for most of these patients is good, there is a need to identify patients at risk for poor outcomes and to develop strategies to mitigate this risk. AREAS COVERED The addition of immunotherapy to standard neoadjuvant chemotherapy represents a promising option for select patients with HR-positive early breast cancer. Three randomized clinical trials have shown favorable results to date. In this review, we discuss the findings of I-SPY2, CheckMate 7FL (NCT04109066), and KEYNOTE-756 (NCT03725059). EXPERT OPINION Despite the promising results of these trials, there are unanswered questions that need to be considered before incorporating neo/adjuvant immunotherapy in the treatment paradigm of early-stage HR-positive breast cancer. One example of an unanswered question is patient selection. Because the regimens used in these protocols are associated with long-term toxicities, identifying the patients who are more likely to derive a benefit from these agents, such as through the use of biomarkers, is critical. A second example is the optimal integration of adjuvant therapies that improve invasive disease-free survival, such as abemaciclib and ribociclib, which are not safely administered concurrently with immunotherapy.
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Affiliation(s)
- Ilana Schlam
- Department of Hematology and Oncology, Tufts Medical Center, Boston, MA, USA
- School of Medicine, Tufts University, Boston, MA, USA
| | - Chiara Corti
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Breast Oncology Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology (DIPO), University of Milan, Milan, Italy
| | - Sarah Sammons
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Breast Oncology Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Elizabeth A Mittendorf
- Breast Oncology Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Sara M Tolaney
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Breast Oncology Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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Grammoustianou M, Dimitrakopoulos FI, Koutras A. Current Status and Future Perspectives of Antibody-Drug Conjugates in Hormone Receptor-Positive Breast Cancer. Cancers (Basel) 2024; 16:1801. [PMID: 38791880 PMCID: PMC11120191 DOI: 10.3390/cancers16101801] [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: 02/25/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 05/26/2024] Open
Abstract
Breast cancer is the most common cancer type in women. The vast majority of breast cancer patients have hormone receptor-positive (HR+) tumors. In advanced HR+ breast cancer, the combination of endocrine therapy with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors is considered the standard of care in the front-line setting. Nevertheless, resistance to hormonal therapy and CDK4/6 inhibitors eventually occurs, leading to progression of the disease. Antibody-drug conjugates (ADCs) comprise a promising therapeutic choice with significant efficacy in patients with HR+ breast cancer, which is resistant to endocrine treatment. ADCs typically consist of a cytotoxic payload attached by a linker to a monoclonal antibody that targets a specific tumor-associated antigen, offering the advantage of a more selective delivery of chemotherapy to cancer cells. In this review, we focus on the ADC mechanisms of action, their toxicity profile and therapeutic uses as well as on related biomarkers and future perspectives in advanced HR+ breast cancer.
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Affiliation(s)
- Maria Grammoustianou
- Oncology Department, Sotiria General Hospital, 115 27 Athens, Greece;
- Breast Cancer Survivorship Research Group, Gustave Roussy, 94805 Villejuif, France
| | | | - Angelos Koutras
- Division of Oncology, Department of Medicine, University Hospital, Medical School, University of Patras, 265 04 Patras, Greece;
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Zhi L, Cheng C, Jing L, Zhi-Ping P, Lu Y, Yan T, Zhi-Gang W, Guo-Bing Y. Application of fluorocarbon nanoparticles of 131I-fulvestrant as a targeted radiation drug for endocrine therapy on human breast cancer. J Nanobiotechnology 2024; 22:107. [PMID: 38475902 DOI: 10.1186/s12951-024-02309-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/26/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Breast cancer is the most prevalent malignant tumor among women, with hormone receptor-positive cases constituting 70%. Fulvestrant, an antagonist for these receptors, is utilized for advanced metastatic hormone receptor-positive breast cancer. Yet, its inhibitory effect on tumor cells is not strong, and it lacks direct cytotoxicity. Consequently, there's a significant challenge in preventing recurrence and metastasis once cancer cells develop resistance to fulvestrant. METHOD To address these challenges, we engineered tumor-targeting nanoparticles termed 131I-fulvestrant-ALA-PFP-FA-NPs. This involved labeling fulvestrant with 131I to create 131I-fulvestrant. Subsequently, we incorporated the 131I-fulvestrant and 5-aminolevulinic acid (ALA) into fluorocarbon nanoparticles with folate as the targeting agent. This design facilitates a tri-modal therapeutic approach-endocrine therapy, radiotherapy, and PDT for estrogen receptor-positive breast cancer. RESULTS Our in vivo and in vitro tests showed that the drug-laden nanoparticles effectively zeroed in on tumors. This targeting efficiency was corroborated using SPECT-CT imaging, confocal microscopy, and small animal fluorescence imaging. The 131I-fulvestrant-ALA-PFP-FA-NPs maintained stability and showcased potent antitumor capabilities due to the synergism of endocrine therapy, radiotherapy, and CR-PDT. Throughout the treatment duration, we detected no notable irregularities in hematological, biochemical, or histological evaluations. CONCLUSION We've pioneered a nanoparticle system loaded with radioactive isotope 131I, endocrine therapeutic agents, and a photosensitizer precursor. This system offers a combined modality of radiotherapy, endocrine treatment, and PDT for breast cancer.
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Affiliation(s)
- Li Zhi
- Department of Breast and Thyroid Surgery, the Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Chen Cheng
- Department of Breast and Thyroid Surgery, the Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Luo Jing
- Department of Pathology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Peng Zhi-Ping
- Department of Nuclear Medicine Laboratory, Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Yang Lu
- Department of Breast and Thyroid Surgery, the Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China
| | - Tian Yan
- Department of Nuclear Medicine, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Wang Zhi-Gang
- Department of Ultrasound Research Institute, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Yin Guo-Bing
- Department of Breast and Thyroid Surgery, the Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, 400010, People's Republic of China.
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Wang X, Zhao S, Xin Q, Zhang Y, Wang K, Li M. Recent progress of CDK4/6 inhibitors' current practice in breast cancer. Cancer Gene Ther 2024:10.1038/s41417-024-00747-x. [PMID: 38409585 DOI: 10.1038/s41417-024-00747-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/28/2024]
Abstract
Dysregulated cellular proliferation represents a hallmark feature across all cancers. Aberrant activation of the cyclin-dependent kinase 4 and 6 (CDK4/6) pathway, independent of mitogenic signaling, engenders uncontrolled breast cancer cell proliferation. Consequently, the advent of CDK4/6 inhibition has constituted a pivotal milestone in the realm of targeted breast cancer therapy. The combination of CDK4/6 inhibitors (CDK4/6i) with endocrine therapy (ET) has emerged as the foremost therapeutic modality for patients afflicted with hormone receptor-positive (HR + )/HER2-negative (HER2-) advanced breast cancer. At present, the Food and Drug Administration (FDA) has sanctioned various CDK4/6i for employment as the primary treatment regimen in HR + /HER2- breast cancer. This therapeutic approach has demonstrated a substantial extension of progression-free survival (PFS), often amounting to several months, when administered alongside endocrine therapy. Within this comprehensive review, we systematically evaluate the utilization strategies of CDK4/6i across various subpopulations of breast cancer and explore potential therapeutic avenues following disease progression during application of CDK4/6i therapy.
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Affiliation(s)
- Xueqing Wang
- Department of Oncology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Shanshan Zhao
- Department of Oncology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Qinghan Xin
- Department of Breast Surgery, Dalian Municipal Central Hospital, Dalian, China
| | - Yunkun Zhang
- Department of Pathology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Kainan Wang
- Department of Oncology, the Second Hospital of Dalian Medical University, Dalian, China.
| | - Man Li
- Department of Oncology, the Second Hospital of Dalian Medical University, Dalian, China.
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Andresen NK, Røssevold AH, Quaghebeur C, Gilje B, Boge B, Gombos A, Falk RS, Mathiesen RR, Julsrud L, Garred Ø, Russnes HG, Lereim RR, Chauhan SK, Lingjærde OC, Dunn C, Naume B, Kyte JA. Ipilimumab and nivolumab combined with anthracycline-based chemotherapy in metastatic hormone receptor-positive breast cancer: a randomized phase 2b trial. J Immunother Cancer 2024; 12:e007990. [PMID: 38242720 PMCID: PMC10806573 DOI: 10.1136/jitc-2023-007990] [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] [Accepted: 12/27/2023] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Immune checkpoint inhibitors have shown minimal clinical activity in hormone receptor-positive metastatic breast cancer (HR+mBC). Doxorubicin and low-dose cyclophosphamide are reported to induce immune responses and counter regulatory T cells (Tregs). Here, we report the efficacy and safety of combined programmed cell death protein-1/cytotoxic T-lymphocyte-associated protein 4 blockade concomitant with or after immunomodulatory chemotherapy for HR+mBC. METHODS Patients with HR+mBC starting first-/second- line chemotherapy (chemo) were randomized 2:3 to chemotherapy (pegylated liposomal doxorubicin 20 mg/m2 every second week plus cyclophosphamide 50 mg by mouth/day in every other 2-week cycle) with or without concomitant ipilimumab (ipi; 1 mg/kg every sixth week) and nivolumab (nivo; 240 mg every second week). Patients in the chemo-only arm were offered cross-over to ipi/nivo without chemotherapy. Co-primary endpoints were safety in all patients starting therapy and progression-free survival (PFS) in the per-protocol (PP) population, defined as all patients evaluated for response and receiving at least two treatment cycles. Secondary endpoints included objective response rate, clinical benefit rate, Treg changes during therapy and assessment of programmed death-ligand 1 (PD-L1), mutational burden and immune gene signatures as biomarkers. RESULTS Eighty-two patients were randomized and received immune-chemo (N=49) or chemo-only (N=33), 16 patients continued to the ipi/nivo-only cross-over arm. Median follow-up was 41.4 months. Serious adverse events occurred in 63% in the immune-chemo arm, 39% in the chemo-only arm and 31% in the cross-over-arm. In the PP population (N=78) median PFS in the immune-chemo arm was 5.1 months, compared with 3.6 months in the chemo-only arm, with HR 0.94 (95% CI 0.59 to 1.51). Clinical benefit rates were 55% (26/47) and 48% (15/31) in the immune-chemo and chemo-only arms, respectively. In the cross-over-arm (ipi/nivo-only), objective responses were observed in 19% of patients (3/16) and clinical benefit in 25% (4/16). Treg levels in blood decreased after study chemotherapy. High-grade immune-related adverse events were associated with prolonged PFS. PD-L1 status and mutational burden were not associated with ipi/nivo benefit, whereas a numerical PFS advantage was observed for patients with a high Treg gene signature in tumor. CONCLUSION The addition of ipi/nivo to chemotherapy increased toxicity without improving efficacy. Ipi/nivo administered sequentially to chemotherapy was tolerable and induced clinical responses. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Identifier: NCT03409198.
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Affiliation(s)
- Nikolai Kragøe Andresen
- Department of Clinical Cancer Research and Department of Cancer Immunology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Andreas Hagen Røssevold
- Department of Clinical Cancer Research and Department of Cancer Immunology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Claire Quaghebeur
- Department of Oncology, CHU UCL Namur - Site Sainte-Elisabeth, Namur, Belgium
| | - Bjørnar Gilje
- Department of Hematology and Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Beate Boge
- Center for Cancer Treatment, Sørlandet Hospital Kristiansand, Kristiansand, Norway
| | - Andrea Gombos
- Department of Medical Oncology, Institut Jules Bordet, Bruxelles, Belgium
| | - Ragnhild Sørum Falk
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | | | - Lars Julsrud
- Department of Radiology and Nuclear medicine, Oslo University Hospital, Oslo, Norway
| | - Øystein Garred
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Hege G Russnes
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Pathology and Department of Cancer Genetics, Oslo University Hospital, Oslo, Norway
| | - Ragnhild Reehorst Lereim
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Sudhir Kumar Chauhan
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Ole Christian Lingjærde
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Center for Bioinformatics, Department of Informatics, University of Oslo, Oslo, Norway
| | - Claire Dunn
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Bjørn Naume
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Jon Amund Kyte
- Department of Clinical Cancer Research and Department of Cancer Immunology, Oslo University Hospital, Oslo, Norway
- Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway
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