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Pla H, Felip E, Obadia V, Pernas S, Viñas G, Margelí M, Fort-Culillas R, Del Barco S, Sabaté N, Fort E, Lezcano C, Cirauqui B, Quiroga V, Stradella A, Gil Gil M, Esteve A, Recalde S. Elderly patients with hormone receptor-positive HER2-negative metastatic breast cancer treated with CDK4/6 inhibitors in a multicentre cohort. Clin Transl Oncol 2024; 26:1748-1758. [PMID: 38519708 PMCID: PMC11178616 DOI: 10.1007/s12094-024-03399-3] [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: 10/17/2023] [Accepted: 01/24/2024] [Indexed: 03/25/2024]
Abstract
INTRODUCTION Cyclin-dependent kinases 4/6 inhibitors (CDK 4/6i) combined with endocrine therapy have become the gold standard in hormone receptor-positive (HR +) HER2-negative (HER2-) metastatic breast cancer (MBC). However, there is a significant lack of data regarding the efficacy and safety of these treatments in elderly patients. We present the results of a real-world data (RWD) cohort stratified by age at treatment initiation (≥ 70 years compared to patients < 70 years). METHODS Clinico-pathological data of HR + HER2- MBC patients who were candidates for CDK4/6i therapy between January 2017 and December 2020 at the Institut Català d'Oncologia (Spain) were retrospectively collected. The primary goal was to assess Progression-Free Survival (PFS), Overall Survival (OS), and safety outcomes within this patient population. RESULTS A total of 274 patients with MBC who received CDK4/6i treatment were included in the study. Among them, 84 patients (30.8%) were aged ≥ 70 years, with a mean age of 75, while 190 patients (69.2%) were under the age of 70, with a mean age of 55.7 years. The most frequently observed grade 3-4 toxicity was neutropenia, with similar rates in both the < 70 group (43.9%) and the ≥ 70 group (47.9%) (p = 0.728). The median Progression-Free Survival (mPFS) for the first-line CDK4/6i treatment was 22 months (95% CI, 15.4-39.8) in the < 70 group and 20.8 months (95% CI 11.2-NR) in the ≥ 70 group (p = 0.67). Similarly, the median PFS for the second-line CDK4/6i treatment was 10.4 months (95% CI, 7.4-15.1) and 7.1 months (95% CI 4.4-21.3) (p = 0.79), respectively. Median overall survival (mOS) was not reached either for the first- and second-line treatment. CONCLUSIONS Our RWD suggests that elderly patients, when compared to those under 70, experience similar survival outcomes and exhibit comparable tolerance for CDK4/6i therapy.
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Affiliation(s)
- Helena Pla
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Doctor Josep Trueta, Girona, Spain
- Precision Oncology Group (OncoGIR-Pro), Institut d'Investigació Biomèdica de Girona (IDIBGI), Universitat de Girona, Girona, Spain
| | - Eudald Felip
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain
| | - Verónica Obadia
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Bellvitge. Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, Barcelona, Spain
| | - Sonia Pernas
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Bellvitge. Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, Barcelona, Spain
| | - Gemma Viñas
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Doctor Josep Trueta, Girona, Spain
- Precision Oncology Group (OncoGIR-Pro), Institut d'Investigació Biomèdica de Girona (IDIBGI), Universitat de Girona, Girona, Spain
| | - Mireia Margelí
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain
| | - Roser Fort-Culillas
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Doctor Josep Trueta, Girona, Spain
- Precision Oncology Group (OncoGIR-Pro), Institut d'Investigació Biomèdica de Girona (IDIBGI), Universitat de Girona, Girona, Spain
| | - Sonia Del Barco
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Doctor Josep Trueta, Girona, Spain
- Unitat d'Epidemiologia i Registre de càncer de Girona (UERCG), Institut d'Investigació Institut d'InvestigacióBiomèdica de Girona (IDIBGI), Universitat de Girona, Girona, Spain
| | - Nuria Sabaté
- Department of Pharmacy, Institut Català d'Oncologia (ICO)-H.U.Doctor Josep Trueta, Girona, Spain
| | - Eduard Fort
- Department of Pharmacy, Institut Català d'Oncologia (ICO)-H.U.Bellvitge, Barcelona, Spain
| | - Clara Lezcano
- Department of Pharmacy, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain
| | - Beatriz Cirauqui
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain
| | - Vanesa Quiroga
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain
| | - Agostina Stradella
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Bellvitge. Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, Barcelona, Spain
| | - Miguel Gil Gil
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Bellvitge. Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, Barcelona, Spain
| | - Anna Esteve
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H. U. Germans Trias i Pujol (HUGTiP), Badalona Applied Research Group in Oncology (B-ARGO), Badalona, Spain.
| | - Sabela Recalde
- Department of Medical Oncology-Breast Cancer Unit, Institut Català d'Oncologia (ICO)-H.U.Bellvitge. Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, Barcelona, Spain.
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Dong L, Liu C, Sun H, Wang M, Sun M, Zheng J, Yu X, Shi R, Wang B, Zhou Q, Chen Z, Xing B, Wang Y, Yao X, Mei M, Ren Y, Zhou X. Targeting STAT3 potentiates CDK4/6 inhibitors therapy in head and neck squamous cell carcinoma. Cancer Lett 2024; 593:216956. [PMID: 38735381 DOI: 10.1016/j.canlet.2024.216956] [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: 03/27/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Anti-CDK4/6 therapy has been employed for the treatment for head and neck squamous cell carcinoma (HNSCC) with CDK4/6 hyperactivation, but the response rate is relatively low. In this study, we first showed that CDK4 and CDK6 was over-expressed and conferred poor prognosis in HNSCC. Moreover, in RB-positive HNSCC, STAT3 signaling was activated induced by CDK4/6 inhibition and STAT3 promotes RB deficiency by upregulation of MYC. Thirdly, the combination of Stattic and CDK4/6 inhibitor results in striking anti-tumor effect in vitro and in Cal27 derived animal models. Additionally, phospho-STAT3 level negatively correlates with RB expression and predicts poor prognosis in patients with HNSCC. Taken together, our findings suggest an unrecognized function of STAT3 confers to CDK4/6 inhibitors resistance and presenting a promising combination strategy for patients with HNSCC.
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Affiliation(s)
- Lin Dong
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Chao Liu
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Haoyang Sun
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Mo Wang
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Mengyu Sun
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Jianwei Zheng
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Xiaoxue Yu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Rong Shi
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Bo Wang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Qianqian Zhou
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Zhiqiang Chen
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Bofan Xing
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Yu Wang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Xiaofeng Yao
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China
| | - Mei Mei
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
| | - Yu Ren
- Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China; Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
| | - Xuan Zhou
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China; Key Laboratory of Basic and Translational Medicine on Head & Neck Cancer, Tianjin, 300060, China; National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin, 300060, China.
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Kimmick G, Pilehvari A, You W, Bonilla G, Anderson R. First- vs second-line CDK 4/6 inhibitor use for patients with hormone receptor positive, human epidermal growth-factor receptor-2 negative, metastatic breast cancer in the real world setting. Breast Cancer Res Treat 2024:10.1007/s10549-024-07415-6. [PMID: 38922546 DOI: 10.1007/s10549-024-07415-6] [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: 01/28/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
PURPOSE To compare CDK4/6 inhibitor (CDK4/6i) with endocrine therapy (ET) in the first- versus second-line setting for treatment of hormone receptor positive (HR+), HER2 negative, metastatic breast cancer (MBC) using real-world evidence. METHODS Patients with HR+, HER2 negative MBC, diagnosed between 2/3/2015 and 11/2/2021 and having ≥ 3 months follow-up were identified from the nationwide electronic health record-derived Flatiron Health de-identified database. Treatment cohorts included: (1) first-line ET with a CDK 4/6i (1st-line CDK4/6i) versus (2) first-line ET alone followed by second-line ET with a CDK4/6i (2nd-line CDK4/6i). Differences in baseline characteristics were tested using chi-square tests and two-sample t-tests. Time to third-line therapy, time to start of chemotherapy, and overall survival were compared using Kaplan-Maier method. RESULTS The analysis included 2771 patients (2170 1st-line CDK4/6i and 601 2nd-line CDK4/6i). Patients receiving 1st-line CDK4/6i were younger (75% vs 68% < 75 years old, p = 0.0001), less likely uninsured or not having insurance status documented (10% vs. 13%, p = 0.04), of better performance status (50% vs 43% with ECOG 0, p = 0.03), and more likely to have de novo MBC (36% vs. 24%, p < 0.001). Time to third-line therapy (49 vs 22 months, p < 0.001) and time to chemotherapy (68 vs 41 months, p < 0.001) were longer in those receiving first-line CDK4/6i. Overall survival (54 vs 49 months, p = 0.33) was similar between groups. CONCLUSION Use of CDK4/6i with first-, vs second-, line ET was associated with longer time to receipt of 3rd-line therapy and longer time to receipt of chemotherapy.
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Affiliation(s)
- Gretchen Kimmick
- Duke University Medical Center/Duke Cancer Institute, DUMC Box 3204, Durham, NC, 27710, USA.
| | - Asal Pilehvari
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA, USA
| | - Wen You
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA, USA
| | - Gloribel Bonilla
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA, USA
| | - Roger Anderson
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
- University of Virginia Comprehensive Cancer Center, Charlottesville, VA, USA
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4
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Goyal RK, Candrilli SD, Abughosh S, Chen H, Holmes HM, Johnson ML. Social Determinants of Health and Other Predictors in Initiation of Treatment with CDK4/6 Inhibitors for HR+/HER2- Metastatic Breast Cancer. Cancers (Basel) 2024; 16:2168. [PMID: 38927874 PMCID: PMC11202198 DOI: 10.3390/cancers16122168] [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: 05/01/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
In hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) metastatic breast cancer (MBC), cyclin-dependent kinase 4/6 inhibitors (CDK4/6is) have replaced endocrine therapy alone as the standard of care; however, several barriers to treatment initiation still exist. We assessed social determinants of health (SDOH) and other factors associated with the initiation of CDK4/6i for HR+/HER2- MBC in the Medicare population. Using a retrospective cohort design, patients aged ≥65 years and diagnosed during 2015-2017 were selected from the SEER-Medicare database. Time from MBC diagnosis to first CDK4/6i initiation was the study outcome. The effect of SDOH measures and other predictors on the outcome was assessed using the multivariable Fine and Gray hazard modeling. Of 752 eligible women, 352 (46.8%) initiated CDK4/6i after MBC diagnosis (median time to initiation: 27.9 months). In adjusted analysis, SDOH factors significantly associated with CDK4/6i initiation included high versus low median household income (HHI) (hazard ratio [HR] = 1.70; 95% CI = 1.03-2.81) and the percentage of population with high versus low Medicare-only coverage (HR = 1.54; 95% CI = 1.04-2.27). In summary, older Medicare patients with HR+/HER2- MBC residing in areas with high median HHI and a high proportion of Medicare-only coverage had higher rates of initiating CDK4/6i, suggesting inequitable access to these novel, effective treatments and a need for policy intervention.
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Affiliation(s)
- Ravi K. Goyal
- Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Houston, TX 77004, USA (M.L.J.)
- RTI Health Solutions, Research Triangle Park, NC 27709, USA
| | | | - Susan Abughosh
- Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Houston, TX 77004, USA (M.L.J.)
| | - Hua Chen
- Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Houston, TX 77004, USA (M.L.J.)
| | - Holly M. Holmes
- Division of Geriatric and Palliative Medicine, McGovern Medical School, University of Texas, Houston, TX 78712, USA
| | - Michael L. Johnson
- Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Houston, TX 77004, USA (M.L.J.)
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Hassanzadeh A, Shomali N, Kamrani A, Soltani-Zangbar MS, Nasiri H, Akbari M. Cancer therapy by cyclin-dependent kinase inhibitors (CDKIs): bench to bedside. EXCLI JOURNAL 2024; 23:862-882. [PMID: 38983782 PMCID: PMC11231458 DOI: 10.17179/excli2024-7076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 03/06/2024] [Indexed: 07/11/2024]
Abstract
A major characteristic of cancer is dysregulated cell division, which results in aberrant growth of cells. Consequently, medicinal targets that prevent cell division would be useful in the fight against cancer. The primary regulator of proliferation is a complex consisting of cyclin and cyclin-dependent kinases (CDKs). The FDA has granted approval for CDK inhibitors (CDKIs) to treat metastatic hormone receptor-positive breast cancer. Specifically, CDK4/6 CDKIs block the enzyme activity of CDK4 and CDK6. Unfortunately, the majority of first-generation CDK inhibitors, also known as pan-CDK inhibitors because they target multiple CDKs, have not been authorized for clinical use owing to their serious side effects and lack of selection. In contrast to this, significant advancements have been created to permit the use of pan-CDK inhibitors in therapeutic settings. Notably, the toxicity and negative consequences of pan-CDK inhibitors have been lessened in recent years thanks to the emergence of combination therapy tactics. Therefore, pan-CDK inhibitors have renewed promise for clinical use when used in a combination regimen. The members of the CDK family have been reviewed and their primary roles in cell cycle regulation were covered in this review. Next, we provided an overview of the state of studies on CDK inhibitors.
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Affiliation(s)
- Ali Hassanzadeh
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Navid Shomali
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Kamrani
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Sadegh Soltani-Zangbar
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Nasiri
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Akbari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Chavarría Piudo N, Blancas I, González Flores E, Henao Carrasco F, López Álvarez P, Morales Pancorbo D, Gámez Casado S, Lomas Garrido MDLC, Rodríguez García JM, Martínez Guisado A, Sánchez Vega A, Ruíz Borrego M. Retrospective registry of patients with locally advanced/metastatic HR +/HER2 - breast cancer treated in clinical practice in Andalusia. Clin Transl Oncol 2024:10.1007/s12094-024-03510-8. [PMID: 38831191 DOI: 10.1007/s12094-024-03510-8] [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: 01/31/2024] [Accepted: 04/26/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Limited data are available regarding the real-world effectiveness and safety of Cyclin Dependent Kinase 4/6 inhibitor (CDK4/6i) (palbociclib/ribociclib) just as a first-line treatment for patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR + /HER2‒) metastatic breast cancer (MBC). OBJECTIVE To assess whether clinical or demographic characteristics limit access to first-line CDK4/6i treatment in clinical practice in the Autonomous Community of Andalusia (Spain) between November 2017 and April 2020. In addition, effectiveness will be described in an exploratory analysis. METHODS Physicians from 12 centers participated in selecting demographic and clinical characteristics, treatment, and outcome data from women with HR + /HER2- MBC treated with or without CDK4/6i in addition to hormonal in the first-line setting, in a 3:1 proportion. Kaplan-Meier analysis estimated progression-free rates (PFRs) and survival rates (SRs). RESULTS A total of 212 patients were included, of whom 175 (82.5%) were in the CDK4/6i treatment group and 37 (17.5%) were in the non-CDK4/6i treatment group (control group). Patients in the CDK 4/6i treatment group were younger (p = 0.0011), the biopsies of the metastatic site at the moment of the relapse were most commonly performed (p = 0.0454), and had multiple metastatic sites (p = 0.0025). The clinical benefit rate (CBR) was 82.3% in the CDK4/6i group and 67.8% in the control group. Median time to a progression event or death (PFS) was 20.4 months (95%CI 15.6-28) in the CDK4/6i group and 12.1 months (95%CI 7.9-not reached) in the control group. CONCLUSIONS Younger patients, biopsies of metastatic disease and with multiple metastatic sites were more frequently treated with CDK4/6i in our daily clinical practice.
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Affiliation(s)
- Natalia Chavarría Piudo
- Medical Oncology Service, Instituto de Investigación E Innovación Biomédica de Cádiz (INIBiCA), Institute for Biomedica Research and Innovation, Hospital Universitario de Jerez de La Frontera, Jerez, Cadiz, Spain.
| | - Isabel Blancas
- Medical Oncology Service, Instituto de Investigación Biosanitaria de Granada (Ibs.Granada) and Medicine Department, Hospital Universitario San Cecilio, Granada University, Granada, Spain
| | - Encarna González Flores
- Medical Oncology Service, Hospital Universitario Virgen de Las Nieves, Instituto de Investigación Biosanitaria de Granada (Ibs. GRANADA), Granada, Spain
| | - Fernando Henao Carrasco
- Medical Oncology Service, Hospital Universitario Virgen Macarena, Fundacion Para La Gestión de La Investigacion en Salud de Sevilla (FISEVI), Seville, Spain
| | - Pilar López Álvarez
- Medical Oncology Service, Hospital Universitario Virgen de Valme, Seville, Spain
| | | | - Salvador Gámez Casado
- Medical Oncology Service, Instituto de Investigación E Innovación Biomédica de Cádiz (INIBiCA), Institute for Biomedica Research and Innovation, Hospital Universitario Puerta del Mar, Cádiz, Spain
| | | | | | | | - Adrián Sánchez Vega
- Medical Oncology Service, Hospital Universitario de Puerto Real, Instituto de Investigación e Innovación Biomédica de Cádiz (INIBiCA) [Institute for Biomedica Research and Innovation], Puerto Real, Cádiz, Spain
| | - Manuel Ruíz Borrego
- Medical Oncology Service, Hospital Universitario Virgen del Rocío, Fundacion para la Gestión de la Investigacion en Salud de Sevilla (FISEVI), Sevilla, Spain
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Brain E, Chen C, Simon S, Pasupuleti V, Pfitzer KV, Gelmon KA. Palbociclib in Older Patients with Advanced/Metastatic Breast Cancer: A Systematic Review. Target Oncol 2024; 19:303-320. [PMID: 38546943 PMCID: PMC11111485 DOI: 10.1007/s11523-024-01046-z] [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] [Accepted: 02/23/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Palbociclib in combination with endocrine therapy is approved for treatment of hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer. In addition to clinical trials, several real-world studies have evaluated the effectiveness of palbociclib. With increased life expectancy in the general population, breast cancer in older women is also expected to increase. OBJECTIVE The aim was to systematically review evidence from both clinical trials and real-world studies for palbociclib treatment outcomes in older patients with HR+/HER2- advanced/metastatic breast cancer (a/mBC). Older patients are often underrepresented in clinical trials, and real-world evidence (RWE) will enrich the analysis of palbociclib outcomes in this subgroup of patients. DESIGN A systematic literature search in PubMed, EMBASE, and Cochrane Library through May 4, 2023, yielded 2355 unique articles. A total of 52 articles (13 and 39 articles reporting results from seven randomized controlled trials [RCTs] and 37 RWE studies, respectively) were included based on study eligibility criteria. RESULTS All RCTs used age cutoffs of ≥ 65 years to define older population (n = 722; 437 received palbociclib); all RWE studies, except one with an age cutoff of > 60 years, had age cutoffs of ≥ 65 years or higher to define older population (n = 9840; 7408 received palbociclib). Overall, in studies that compared efficacy (progression-free survival [seven RCTs, 20 RWE studies], overall survival [four RCTs, 11 RWE studies], tumor response [three RWE studies], and clinical benefit rate [one RCT, two RWE studies]) and safety outcomes (three RCTs, three RWE studies) between older and younger patients, palbociclib showed similar benefits, regardless of age. Results from two RCTs and two RWE studies showed that global quality of life (QoL) was maintained in older patients receiving palbociclib. Overall, palbociclib dose modifications (two RWE studies), dose reductions (one RCT, seven RWE studies), and treatment discontinuation rates (three RCTs, three RWE studies) were higher in older patients compared with younger patients; however, these differences did not appear to adversely impact efficacy outcomes. CONCLUSIONS In this systematic review, data from RCTs showed that palbociclib was effective, well tolerated, and maintained QoL in older patients with HR+/HER2- a/mBC. Palbociclib treatment in older patients in real-world settings was associated with similar clinical benefit as in RCTs. PROSPERO REGISTRATION CRD42023444195.
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Affiliation(s)
- Etienne Brain
- Department of Medical Oncology, Institut Curie/Saint-Cloud, Paris, France
| | | | | | | | | | - Karen A Gelmon
- Faculty of Medicine, University of British Columbia, and BC Cancer, 600 W 10th Ave, Vancouver, BC, V5Z 1M9, Canada.
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Moulson R, Feugère G, Moreira-Lucas TS, Dequen F, Weiss J, Smith J, Brezden-Masley C. Real-World Treatment Patterns and Clinical Outcomes among Patients Receiving CDK4/6 Inhibitors for Metastatic Breast Cancer in a Canadian Setting Using AI-Extracted Data. Curr Oncol 2024; 31:2172-2184. [PMID: 38668064 PMCID: PMC11049664 DOI: 10.3390/curroncol31040161] [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: 02/20/2024] [Revised: 03/20/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) are widely used in patients with hormone receptor-positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) advanced/metastatic breast cancer (ABC/MBC) in first line (1L), but little is known about their real-world use and clinical outcomes long-term, in Canada. This study used Pentavere's previously validated artificial intelligence (AI) to extract real-world data on the treatment patterns and outcomes of patients receiving CDK4/6i+endocrine therapy (ET) for HR+/HER2- ABC/MBC at Sinai Health in Toronto, Canada. Between 1 January 2016 and 1 July 2021, 48 patients were diagnosed with HR+/HER2- ABC/MBC and received CDK4/6i + ET. A total of 38 out of 48 patients received CDK4/6i + ET in 1L, of which 34 of the 38 (89.5%) received palbociclib + ET. In 2L, 12 of the 21 (57.1%) patients received CDK4/6i + ET, of which 58.3% received abemaciclib. In 3L, most patients received chemotherapy (10/12, 83.3%). For the patients receiving CDK4/6i in 1L, the median (95% CI) time to the next treatment was 42.3 (41.2, NA) months. The median (95% CI) time to chemotherapy was 46.5 (41.4, NA) months. The two-year overall survival (95% CI) was 97.4% (92.4, 100.0), and the median (range) follow-up was 28.7 (3.4-67.6) months. Despite the limitations inherent in real-world studies and a limited number of patients, these AI-extracted data complement previous studies, demonstrating the effectiveness of CDK4/6i + ET in the Canadian real-world 1L, with most patients receiving palbociclib as CDK4/6i in 1L.
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Affiliation(s)
| | | | | | | | | | - Janet Smith
- Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada (C.B.-M.)
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9
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Robert N, Chen C, Kim S, Zhang Z, Aguilar KM, Wang Y, Li B, Gaffney M, Huang X, McRoy L. Real-world comparative effectiveness of palbociclib plus aromatase inhibitor in HR+/HER2- metastatic breast cancer. Future Oncol 2024; 20:761-780. [PMID: 38231045 DOI: 10.2217/fon-2023-0858] [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] [Indexed: 01/18/2024] Open
Abstract
Aim: Provide real-world data on palbociclib as evidence of effectiveness in patient populations from routine clinical practice. Methods: This was a retrospective, observational cohort study of patients with HR+/HER2- metastatic breast cancer treated with palbociclib plus aromatase inhibitor (AI) or AI alone as first-line therapy within the US Oncology Network. Results: Patients treated with palbociclib plus AI (n = 838) versus AI alone (n = 450) had a numerically longer median overall survival (42.1 vs 35.7 months; hazard ratio [HR] = 0.90 [95% CI: 0.75-1.07]; p = 0.117) and a significantly extended real-world progression-free survival (21.0 vs 15.7 months; HR = 0.75 [95% CI: 0.64-0.88]; p = 0.0002) after normalized inverse probability treatment weighting. Conclusion: These real-world results support the use of palbociclib plus AI as first-line treatment in routine clinical practice for patients with HR+/HER2- metastatic breast cancer.
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Affiliation(s)
| | | | - Sindy Kim
- Pfizer Inc, San Diego, CA 92121, USA
| | - Zhe Zhang
- Pfizer Inc, San Diego, CA 92121, USA
| | | | | | | | | | - Xin Huang
- Pfizer Inc, San Diego, CA 92121, USA
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10
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Fiste O, Mavrothalassitis E, Apostolidou K, Trika C, Liontos M, Koutsoukos K, Kaparelou M, Dimitrakakis C, Gavriatopoulou M, Dimopoulos MA, Zagouri F. Cardiovascular complications of ribociclib in breast cancer patients. Crit Rev Oncol Hematol 2024; 196:104296. [PMID: 38395242 DOI: 10.1016/j.critrevonc.2024.104296] [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: 10/02/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors have unprecedentedly advanced hormone-dependent breast cancer treatment paradigm. In the metastatic setting, ribociclib has consistently demonstrated survival benefit in pre-, peri-, and postmenopausal patients, conjugating efficacy with health-related quality of life preservation. Accordingly, the emergence of cardiac and/or vascular adverse events related to this novel targeted agent is gaining significant interest. This narrative review provides an overview of the incidence and spectrum of cardiovascular toxicity, in both clinical trial framework and real-world evidence. The potential pathogenetic mechanism, along with the available diagnostic parameters including biomarkers, and proper management, are also summarized.
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Affiliation(s)
- Oraianthi Fiste
- Oncology Unit, Third Department of Internal Medicine and Laboratory, National and Kapodistrian University of Athens, Sotiria General Hospital, Athens 11527, Greece.
| | | | - Kleoniki Apostolidou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Chrysanthi Trika
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Michalis Liontos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Konstantinos Koutsoukos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Maria Kaparelou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Constantine Dimitrakakis
- First Department of Obstetrics and Gynecology, Alexandra University Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
| | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Meletios Athanasios Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Alexandra Hospital, Athens 11528, Greece
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Rugo HS, Liu X, Li B, McRoy L, Chen C, Layman RM, Brufsky A. Real-world treatment patterns for palbociclib plus an aromatase inhibitor, or an aromatase inhibitor alone, for patients with metastatic breast cancer in the Flatiron Database. Int J Cancer 2024; 154:701-711. [PMID: 37831416 DOI: 10.1002/ijc.34748] [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: 06/02/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 10/14/2023]
Abstract
There are limited real-world comparative effectiveness data for palbociclib plus an aromatase inhibitor (AI) as a first-line (1L) treatment examining endpoints that require long term follow-up and post 1L progression. The Flatiron Health Analytic Database was used to characterize treatment and dosing patterns in patients with hormone receptor-positive/human epidermal growth factor 2-negative (HR+/HER2-) metastatic breast cancer (mBC) receiving palbociclib plus an AI vs an AI alone in routine US clinical practice. In addition, time to chemotherapy (TTC) and real-world progression-free survival (rwPFS) when combining 1L and second-line of therapy (rwPFS2) were assessed. Of 1324 patients who received palbociclib plus an AI between February 3, 2015 and March 31, 2020, 1110 (83.8%) started palbociclib at the recommended 125 mg/day dose. After stabilized inverse probability treatment-weighting (sIPTW), median TTC in patients treated with palbociclib plus an AI and AI alone was 37.4 months (95% confidence interval [CI], 33.7-40.7) and 29.2 months (95% CI, 26.8-33.5), respectively (hazard ratio [HR] = 0.77 [95% CI, 0.69-0.86], P < .0001); median rwPFS2 was 32.6 months (95% CI, 29.4-35.2) and 20.7 months (95% CI, 18.9-22.6), respectively (HR = 0.62 [95% CI, 0.54-0.70], P < .0001). Sensitivity analyses with propensity score matching showed similar results to sIPTW analyses. Results from this large real-world study examining additional effectiveness outcomes beyond 1L rwPFS and overall survival support the use of palbociclib plus an AI as a 1L treatment for patients with HR+/HER2- mBC.
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Affiliation(s)
- Hope S Rugo
- University of California San Francisco Comprehensive Cancer Center, San Francisco, California, USA
| | | | | | | | | | - Rachel M Layman
- The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Adam Brufsky
- Department of Medicine, Division of Hematology/Oncology, UPMC Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Takahashi M, Osako T, Yasojima H, Inoue K, Kawashima M, Maeda H, Ichikawa A, Muramatsu Y, Masuda N. Overall survival in Japanese patients with ER+/HER2- advanced breast cancer treated with first-line palbociclib plus letrozole. Breast Cancer 2024; 31:53-62. [PMID: 37882974 PMCID: PMC10764519 DOI: 10.1007/s12282-023-01511-z] [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: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND An open-label, single-arm, Japanese phase 2 study (J-Ph2) investigated the efficacy and safety of first-line (1L) palbociclib (PAL) + letrozole (LET) in postmenopausal Japanese women with ER+/HER2- advanced breast cancer (ABC). In the final analysis, median progression-free survival was 35.7 months (95% CI 21.7-46.7); but overall survival (OS) data were immature. Here, we report the findings from a follow-up study of J-Ph2 (NCT04735367) evaluating OS and subsequent therapy in these Japanese women. METHODS Patients (N = 42) who participated in J-Ph2 were enrolled in the OS follow-up study. The primary endpoint was OS and secondary endpoints included type and duration of subsequent therapy. RESULTS Patients were a median age of 62.5 years; 48% had visceral metastases. At a median follow-up of 89.7 months, the median OS was 85.4 months (95% CI 64.3-not estimable). Median OS was longer in patients with nonvisceral versus visceral metastases (not reached vs 67.3 months), or with treatment-free interval > 12 months versus ≤ 12 months (85.4 vs 45.4 months), or with treatment duration ≥ 24 months versus < 24 months (not reached vs 47.5 months). Of patients who received a first subsequent therapy (81%), most (67%) continued endocrine-based therapy, while 7% received chemotherapy. The median duration of the first subsequent therapy was 8.3 months (95% CI 3.9-12.2), and the median chemotherapy-free survival was 69.1 months (95% CI 24.2-85.4). CONCLUSIONS In this population of Japanese women with ER+/HER2- ABC, median OS was over 7 years with 1L PAL + LET, supporting the use of 1L PAL + endocrine therapy. TRIAL NUMBER NCT04735367.
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Affiliation(s)
| | - Tomofumi Osako
- Breast Center, Kumamoto Shinto General Hospital, Kumamoto, Japan
| | - Hiroyuki Yasojima
- Department of Surgery, Breast Oncology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Kenichi Inoue
- Division of Breast Oncology, Saitama Cancer Center, Saitama, Japan
| | - Masahiro Kawashima
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Maeda
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
| | | | | | - Norikazu Masuda
- Department of Breast and Endocrine Surgery, Graduate School of Medicine, Nagoya University, Nagoya, Japan
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Brufsky A, Liu X, Li B, McRoy L, Chen C, Layman RM, Rugo HS. Palbociclib Combined with an Aromatase Inhibitor in Patients with Breast Cancer with Lung or Liver Metastases in US Clinical Practice. Cancers (Basel) 2023; 15:5268. [PMID: 37958441 PMCID: PMC10649131 DOI: 10.3390/cancers15215268] [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: 10/05/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
A cyclin-dependent kinase 4/6 inhibitor combined with endocrine therapy is the standard of care for patients with hormone receptor-positive/human epidermal growth factor 2-negative (HR+/HER2-) metastatic breast cancer (mBC), but real-world effectiveness data for patients with lung or liver metastases are limited. This retrospective study included data from the US Flatiron Health database of patients with HR+/HER2- mBC and lung or liver metastases treated with first-line palbociclib (PAL) plus an aromatase inhibitor (AI) or an AI alone in routine clinical practice. Overall survival (OS) and real-world progression-free survival (rwPFS) were assessed. A total of 891 patients were included (622 with lung metastasis, 376 with liver metastasis, and 107 with both lung and liver metastasis). After stabilized inverse probability of treatment weighting to balance patient characteristics, PAL + AI versus AI alone was associated with significantly prolonged OS (HR = 0.62; p < 0.001) and rwPFS (HR = 0.55; p < 0.001) in patients with lung metastases and numerically longer OS (HR = 0.73; p = 0.056) and significantly longer rwPFS (HR = 0.57, p < 0.001) for those with liver metastases. Overall, PAL + AI versus AI alone was associated with prolonged OS and rwPFS in routine clinical practice, supporting the use of first-line PAL + AI for patients with HR+/HER2- mBC with lung and/or liver metastases.
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Affiliation(s)
- Adam Brufsky
- UPMC Hillman Cancer Center, Department of Medicine, Division of Hematology/Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Xianchen Liu
- Pfizer Inc., New York, NY 10001, USA; (X.L.); (B.L.); (L.M.); (C.C.)
| | - Benjamin Li
- Pfizer Inc., New York, NY 10001, USA; (X.L.); (B.L.); (L.M.); (C.C.)
| | - Lynn McRoy
- Pfizer Inc., New York, NY 10001, USA; (X.L.); (B.L.); (L.M.); (C.C.)
| | - Connie Chen
- Pfizer Inc., New York, NY 10001, USA; (X.L.); (B.L.); (L.M.); (C.C.)
| | - Rachel M. Layman
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Hope S. Rugo
- Department of Medicine (Hematology/Oncology), University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA 94158, USA;
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Amato O, Guarneri V, Girardi F. Epidemiology trends and progress in breast cancer survival: earlier diagnosis, new therapeutics. Curr Opin Oncol 2023; 35:612-619. [PMID: 37681462 PMCID: PMC10566595 DOI: 10.1097/cco.0000000000000991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
PURPOSE OF REVIEW In this review we will critically appraise the latest evidence on breast cancer (BC) survival trends and discuss how these may reflect breakthroughs in early diagnosis and treatment approaches. We will address the wide global inequalities in BC survival and review the ongoing initiatives aimed at improving cancer control worldwide. RECENT FINDINGS BC outcomes have improved in high-income countries during the last decades, following the implementation of strategies for early detection and optimal multimodality treatment. Novel therapeutics, such as anti-HER2 targeted treatments, have also contributed to the progress in BC survival. However, BC mortality is still high in low-income countries, due to the lack of optimal healthcare infrastructures. In the context of marked inequities in BC management across world regions, international collaborations such as the Global Breast Cancer Initiative and the Global Initiative for Cancer Registry Development work to foster capacity-building in developing countries, tackle the burden of BC and deliver the Sustainable Development Goals by 2030. SUMMARY Collection of robust, high-quality data from population-based cancer registries is crucial to drive and refine public health interventions. Population-based data are also the litmus paper to evaluate the real-world impact of clinical advances and monitor progress.
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Affiliation(s)
- Ottavia Amato
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padova, Padova, Italy
| | - Valentina Guarneri
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padova, Padova, Italy
| | - Fabio Girardi
- Division of Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
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Pita JM, Raspé E, Coulonval K, Decaussin-Petrucci M, Tarabichi M, Dom G, Libert F, Craciun L, Andry G, Wicquart L, Leteurtre E, Trésallet C, Marlow LA, Copland JA, Durante C, Maenhaut C, Cavaco BM, Dumont JE, Costante G, Roger PP. CDK4 phosphorylation status and rational use for combining CDK4/6 and BRAF/MEK inhibition in advanced thyroid carcinomas. Front Endocrinol (Lausanne) 2023; 14:1247542. [PMID: 37964967 PMCID: PMC10641312 DOI: 10.3389/fendo.2023.1247542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/26/2023] [Indexed: 11/16/2023] Open
Abstract
Background CDK4/6 inhibitors (CDK4/6i) have been established as standard treatment against advanced Estrogen Receptor-positive breast cancers. These drugs are being tested against several cancers, including in combinations with other therapies. We identified the T172-phosphorylation of CDK4 as the step determining its activity, retinoblastoma protein (RB) inactivation, cell cycle commitment and sensitivity to CDK4/6i. Poorly differentiated (PDTC) and anaplastic (ATC) thyroid carcinomas, the latter considered one of the most lethal human malignancies, represent major clinical challenges. Several molecular evidence suggest that CDK4/6i could be considered for treating these advanced thyroid cancers. Methods We analyzed by two-dimensional gel electrophoresis the CDK4 modification profile and the presence of T172-phosphorylated CDK4 in a collection of 98 fresh-frozen tissues and in 21 cell lines. A sub-cohort of samples was characterized by RNA sequencing and immunohistochemistry. Sensitivity to CDK4/6i (palbociclib and abemaciclib) was assessed by BrdU incorporation/viability assays. Treatment of cell lines with CDK4/6i and combination with BRAF/MEK inhibitors (dabrafenib/trametinib) was comprehensively evaluated by western blot, characterization of immunoprecipitated CDK4 and CDK2 complexes and clonogenic assays. Results CDK4 phosphorylation was detected in all well-differentiated thyroid carcinomas (n=29), 19/20 PDTC, 16/23 ATC and 18/21 thyroid cancer cell lines, including 11 ATC-derived ones. Tumors and cell lines without phosphorylated CDK4 presented very high p16CDKN2A levels, which were associated with proliferative activity. Absence of CDK4 phosphorylation in cell lines was associated with CDK4/6i insensitivity. RB1 defects (the primary cause of intrinsic CDK4/6i resistance) were not found in 5/7 tumors without detectable phosphorylated CDK4. A previously developed 11-gene expression signature identified the likely unresponsive tumors, lacking CDK4 phosphorylation. In cell lines, palbociclib synergized with dabrafenib/trametinib by completely and permanently arresting proliferation. These combinations prevented resistance mechanisms induced by palbociclib, most notably Cyclin E1-CDK2 activation and a paradoxical stabilization of phosphorylated CDK4 complexes. Conclusion Our study supports further clinical evaluation of CDK4/6i and their combination with anti-BRAF/MEK therapies as a novel effective treatment against advanced thyroid tumors. Moreover, the complementary use of our 11 genes predictor with p16/KI67 evaluation could represent a prompt tool for recognizing the intrinsically CDK4/6i insensitive patients, who are potentially better candidates to immediate chemotherapy.
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Affiliation(s)
- Jaime M. Pita
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Eric Raspé
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Katia Coulonval
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | | | - Maxime Tarabichi
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Geneviève Dom
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Frederick Libert
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
- BRIGHTCore, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Ligia Craciun
- Tumor Bank of the Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Guy Andry
- Department of Head & Neck and Thoracic Surgery, Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Laurence Wicquart
- Tumorothèque du Groupement de Coopération Sanitaire-Centre Régional de Référence en Cancérologie (C2RC) de Lille, Lille, France
| | - Emmanuelle Leteurtre
- Department of Pathology, Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Inserm, Centre Hospitalo-Universitaire (CHU) Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Christophe Trésallet
- Department of General and Endocrine Surgery - Pitié-Salpêtrière Hospital, Sorbonne University, Assistance Publique des Hôpitaux de Paris, Paris, France
- Department of Digestive, Bariatric and Endocrine Surgery - Avicenne University Hospital, Paris Nord - Sorbonne University, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Laura A. Marlow
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, United States
| | - John A. Copland
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, United States
| | - Cosimo Durante
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Carine Maenhaut
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Branca M. Cavaco
- Molecular Endocrinology Group, Unidade de Investigação em Patobiologia Molecular (UIPM), Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), Lisbon, Portugal
| | - Jacques E. Dumont
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Giuseppe Costante
- Departments of Endocrinology and Medical Oncology, Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Pierre P. Roger
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
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Petrelli F, Dottorini L, Di Menna G, Borgonovo K, Parati MC, Rea CG, Ghilardi M, Ghidini A, Luciani A. The role of CDK4/6 inhibitors in older and younger patients with breast cancer: A systematic review and meta-analysis. Breast 2023; 71:138-142. [PMID: 37198053 PMCID: PMC10512091 DOI: 10.1016/j.breast.2023.05.002] [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: 04/14/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023] Open
Abstract
INTRODUCTION Cyclin-dependent kinase 4/6 (CDK4/6) inhibitors have an extremely important impact on the treatment of hormone-sensitive breast cancer (BC) and have radically changed the first-line treatment for metastatic disease with increased rates of treatment response, overall survival (OS), and progression-free survival (PFS). We performed a pooled analysis of randomized trials to validate or refute the hypothesis that there is a significant survival benefit of adding anti-CDK4/6 inhibitors to standard endocrine therapy (ET) in older patients with advanced BC. METHODS We selected only English-language phase II/III randomized controlled trials that compared ET alone with ET with anti-CDK4/6 inhibitors in the treatment of advanced BC, with subgroups reporting the outcomes of elderly patients (usually at least 65 years). The primary endpoint was OS. RESULTS The review process led to the inclusion of 12 articles and two meeting abstracts, including a total of 10 trials. The addition of CDK4/6 inhibitors to ET (letrozole or fulvestrant) significantly reduced mortality risk by 20% in younger patients (fixed-effect model; HR 0.80; 95% CI 0.72-0.9; p < 0.01) and 21% in older BC patients (HR 0.79; 95% CI 0.69-0.91; p < 0.01). No OS data were available for patients ≥70 years. CONCLUSION This large, pooled analysis is the first to demonstrate that CDK4/6 inhibitors confer OS and PFS benefits in elderly patients (those aged ≥65 years) with advanced ER + BC and to indicate that it should be discussed with and offered to all patients after geriatric assessment and according to the toxicity profile.
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Affiliation(s)
| | | | - Giandomenico Di Menna
- IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | | | | | | | - Mara Ghilardi
- Oncology Unit, ASST Bergamo Ovest, Treviglio, BG, Italy
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Brufsky A, Liu X, Li B, McRoy L, Chen C, Layman RM, Rugo HS. Real-world treatment patterns and effectiveness of palbociclib plus an aromatase inhibitor in patients with metastatic breast cancer aged 75 years or older. Front Oncol 2023; 13:1237751. [PMID: 37841423 PMCID: PMC10569486 DOI: 10.3389/fonc.2023.1237751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/29/2023] [Indexed: 10/17/2023] Open
Abstract
Background Elderly patients are generally underrepresented in oncology clinical trials; therefore, real-world data are needed to inform clinical management of elderly patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) metastatic breast cancer (mBC). This subanalysis of the P-REALITY X study (NCT05361655) evaluated palbociclib treatment patterns and comparative effectiveness of palbociclib plus an aromatase inhibitor (AI) versus an AI alone among patients with HR+/HER2- mBC aged ≥ 75 years treated in routine clinical practice in the United States. Methods This retrospective observational cohort study used electronic health records from the Flatiron Health Analytic Database. Palbociclib treatment patterns, overall survival (OS), real-world progression-free survival (rwPFS), and time to chemotherapy (TTC) were evaluated. Three methods were used for comparative analyses: (1) an unadjusted analysis, (2) stabilized inverse probability treatment weighting (sIPTW; primary analysis), and (3) propensity score matching (PSM; sensitivity analysis). Results A total of 961 patients aged ≥ 75 years with HR+/HER2- mBC were identified who started palbociclib plus an AI (n = 313) or an AI alone (n = 648) as first-line (1L) therapy between February 2015 and March 2020 (data cut-off: September 30, 2020). Among patients in the palbociclib plus an AI group with a documented palbociclib starting dose (n = 306), approximately 75% started palbociclib at 125 mg/day, and approximately 40% experienced dose adjustment. After sIPTW, patients treated with palbociclib plus an AI versus an AI alone had significantly improved OS (median of 43.0 vs. 32.4 months; hazard ratio [HR], 0.66 [95% confidence interval (CI), 0.51-0.84]; P = 0.0007), rwPFS (median of 20.0 vs. 15.0 months; HR, 0.72 (0.59-0.89); P = 0.0021), and TTC (median of 40.2 vs. 27.4 months; HR, 0.69 [0.55-0.87]; P = 0.0014). These significant improvements in OS, rwPFS, and TTC remained consistent in the unadjusted analysis and after PSM. Conclusion This real-world comparative analysis demonstrated that 1L palbociclib plus an AI is associated with improved effectiveness compared with an AI alone among patients with HR+/HER2- mBC aged ≥ 75 years. These findings support palbociclib plus an AI as a standard-of-care 1L treatment for elderly patients with HR+/HER2- mBC.
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Affiliation(s)
- Adam Brufsky
- Division of Hematology/Oncology, Department of Medicine, UPMC Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Xianchen Liu
- Department of Oncology Medical Affairs, Pfizer Inc., New York, NY, United States
| | - Benjamin Li
- Department of Oncology Medical Affairs, Pfizer Inc., New York, NY, United States
| | - Lynn McRoy
- Department of Oncology Medical Affairs, Pfizer Inc., New York, NY, United States
| | - Connie Chen
- Department of Oncology Medical Affairs, Pfizer Inc., New York, NY, United States
| | - Rachel M. Layman
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Hope S. Rugo
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, United States
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