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Schaeffer S, Lutz C, Dobbie M, Terracciano LM, Matter M, Vosbeck J, Heim MH, Bernsmeier C. Ribociclib-induced liver injury: a case report. Front Oncol 2023; 13:1256783. [PMID: 38107071 PMCID: PMC10722253 DOI: 10.3389/fonc.2023.1256783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023] Open
Abstract
Background Idiosyncratic drug-induced liver injury (DILI) is a rare, unpredictable hepatic adverse event and the most common cause of acute liver failure in Europe and the US. Ribociclib is a potent Cyclin-dependent kinase 4 and 6 (CDK4/6)-inhibitor administered for advanced hormone-receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer. Previous reports have shown hepatotoxicity without liver necrosis related to ribociclib. Case presentation A 41-year-old female patient with primary metastatic HR-positive, HER2-negative breast cancer developed liver enzyme elevation under treatment with ribociclib. Ribociclib was withdrawn 8 weeks after initiation due to liver enzyme elevation. A liver biopsy, performed due to further enzyme increase (peak ALT 2836 U/l), onset of jaundice (peak bilirubin 353 µmol/l) and coagulopathy (INR 1.8) two weeks later, revealed acute hepatitis with 30% parenchymal necrosis. Roussel Uclaf Causality Assessment Method (RUCAM) score was 7 points (probable). Under treatment with prednisone (60mg), initiated 2 weeks after drug withdrawal, and subsequently N-acetylcysteine (Prescott regimen) liver enzymes normalized within 8 weeks along with prednisone tapering. Conclusion This case illustrates the development of a severe idiosyncratic hepatocellular pattern DILI grade 3 (International DILI Expert Working Group) induced by ribociclib. Routine liver enzyme testing during therapy, immediate hepatologic work-up and treatment interruption in case of liver enzyme elevation are highly recommended. Corticosteroid treatment should be considered in cases of severe necroinflammation.
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Affiliation(s)
- Sofia Schaeffer
- University Centre for Gastrointestinal and Liver Diseases, Basel, Switzerland
| | - Christian Lutz
- University Centre for Gastrointestinal and Liver Diseases, Basel, Switzerland
| | - Michael Dobbie
- Department of Oncology, Hôpital du Jura, Delémont, Switzerland
| | - Luigi M. Terracciano
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Department of Pathology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Matthias Matter
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Jürg Vosbeck
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Markus H. Heim
- University Centre for Gastrointestinal and Liver Diseases, Basel, Switzerland
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Degenhardt T, Fasching PA, Lüftner D, Müller V, Thomssen C, Schem C, Witzel I, Decker T, Tesch H, Kümmel S, Uleer C, Wuerstlein R, Hoffmann O, Warm M, Marschner N, Schinköthe T, Kates RE, Schumacher J, Otremba B, Zaiss M, Harbeck N, Schmidt M. PRECYCLE: multicenter, randomized phase IV intergroup trial to evaluate the impact of eHealth-based patient-reported outcome (PRO) assessment on quality of life in patients with hormone receptor positive, HER2 negative locally advanced or metastatic breast cancer treated with palbociclib and an aromatase inhibitor or palbociclib and fulvestrant. Trials 2023; 24:338. [PMID: 37198674 DOI: 10.1186/s13063-023-07306-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/11/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Efficacy and quality of life (QoL) are key criteria for therapy selection in metastatic breast cancer (MBC). In hormone receptor positive (HR +) human epidermal growth factor receptor 2 negative (HER2 -) MBC, addition of targeted oral agents such as everolimus or a cycline-dependent kinase 4/6 (CDK 4/6) inhibitor (e.g., palbociclib, ribociclib, abemaciclib) to endocrine therapy substantially prolongs progression-free survival and in the case of a CDK 4/6i also overall survival. However, the prerequisite is adherence to therapy over the entire course of treatment. However, particularly with new oral drugs, adherence presents a challenge to disease management. In this context, factors influencing adherence include maintaining patients' satisfaction and early detection/management of side effects. New strategies for continuous support of oncological patients are needed. An eHealth-based platform can help to support therapy management and physician-patient interaction. METHODS PreCycle is a multicenter, randomized, phase IV trial in HR + HER2 - MBC. All patients (n = 960) receive the CDK 4/6 inhibitor palbociclib either in first (62.5%) or later line (37.5%) together with endocrine therapy (AI, fulvestrant) according to national guidelines. PreCycle evaluates and compares the time to deterioration (TTD) of QoL in patients supported by eHealth systems with substantially different functionality: CANKADO active vs. inform. CANKADO active is the fully functional CANKADO-based eHealth treatment support system. CANKADO inform is a CANKADO-based eHealth service with a personal login, documentation of daily drug intake, but no further functions. To evaluate QoL, the FACT-B questionnaire is completed at every visit. As little is known about relationships between behavior (e.g., adherence), genetic background, and drug efficacy, the trial includes both patient-reported outcome and biomarker screening for discovery of forecast models for adherence, symptoms, QoL, progression free survival (PFS), and overall survival (OS). DISCUSSION The primary objective of PreCycle is to test the hypothesis of superiority for time to deterioration (TTD) in terms of DQoL = "Deterioration of quality of life" (FACT-G scale) in patients supported by an eHealth therapy management system (CANKADO active) versus in patients merely receiving eHealth-based information (CANKADO inform). EudraCT Number: 2016-004191-22.
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Affiliation(s)
- Tom Degenhardt
- Breast Center, Department of Obstetrics and Gynecology and CCC Munich, LMU University Hospital, Munich, Germany
- Hausarztpraxis Wolfratshausen, Wolfratshausen, Germany
| | - Peter A Fasching
- Obstetrics and Gynecology, University Hospital Erlangen, Erlangen, Germany
| | - Diana Lüftner
- Immanuel Hospital Märkische Schweiz, Buckow, Germany
- Immanuel Hospital Rüdersdorf and Medical University of Brandenburg Theodor Fontane, Brandenburg, Germany
| | - Volkmar Müller
- Clinic and Polyclinic for Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
| | - Christoph Thomssen
- Gynecology, Martin-Luther-University Halle-Wittenberg, Halle-Saale, Germany
| | | | - Isabell Witzel
- Clinic and Polyclinic for Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
| | - Thomas Decker
- Hematology/Oncology, Onkologie Ravensburg, Ravensburg, Germany
| | - Hans Tesch
- Hämatologisch-Onkologische Gemeinschaftspraxis, Frankfurt, Germany
| | | | | | - Rachel Wuerstlein
- Breast Center, Department of Obstetrics and Gynecology and CCC Munich, LMU University Hospital, Munich, Germany
- West German Study Group, Moenchengladbach, Germany
| | | | - Mathias Warm
- Breast Center, Academic Hospital Cologne-Holweide, Cologne, Germany
| | | | - Timo Schinköthe
- CANKADO Service GmbH, Kirchheim, Germany
- Research Center Smart Digital Health, University of the Bundeswehr, Neubiberg, Germany
| | | | | | | | - Matthias Zaiss
- Praxis Interdisziplinäre Onkologie U. Hämatologie, Freiburg, Germany
| | - Nadia Harbeck
- Breast Center, Department of Obstetrics and Gynecology and CCC Munich, LMU University Hospital, Munich, Germany.
- West German Study Group, Moenchengladbach, Germany.
| | - Marcus Schmidt
- Department of Obstetrics and Gynecology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
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Choong GM, Liddell S, Ferre RAL, O'Sullivan CC, Ruddy KJ, Haddad TC, Hobday TJ, Peethambaram PP, Liu MC, Goetz MP, Giridhar KV. Clinical management of metastatic hormone receptor-positive, HER2-negative breast cancer (MBC) after CDK 4/6 inhibitors: a retrospective single-institution study. Breast Cancer Res Treat 2022; 196:229-37. [PMID: 36045271 DOI: 10.1007/s10549-022-06713-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/14/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE Cyclin-dependent kinase 4/6 inhibitors (CDK4/6is), in combination with endocrine therapy (ET), are standard either in the first (1L) or second-line (2L) setting for the treatment of hormone receptor (HR) positive, HER2-negative metastatic breast cancer (MBC). However, the optimal sequencing of treatments after progression on CDK4/6i remains unknown. We performed a single-institution analysis to identify treatments and outcomes after progression on a CDK4/6i. METHODS We identified patients with HR-positive, HER2-negative MBC prescribed a CDK4/6i in the 1L or 2L settings from December 2014 to February 2018 at Mayo Clinic in Rochester, Minnesota. Outcomes were collected through September 30, 2020. RESULTS Palbociclib, in combination with letrozole or fulvestrant, was the most prescribed CDK4/6i. The 1L and 2L CDK4/6i cohorts exhibited comparable overall survival (OS), but progression-free survival (PFS) was longer in the 1L than the 2L cohort [28.2 months (95% CI 19.6-34.9) vs 19.8 months (95% CI 15.7-29.6)]. The most common post-CDK4/6i treatments were PI3K/mTOR inhibitors (PI3K/mTORi), single-agent ET, or chemotherapy. PFS in the 1L CDK4/6i cohort following PI3K/mTORi was 8.5 months (95% CI 5.5 months-NE), single-agent ET was 6.0 months (95% CI 3.3-14.0 months), and chemotherapy PFS was 5.4 months (95% CI 3.3 months-NE). CONCLUSIONS Following progression on a CDK 4/6i, mPFS was short, with similar PFS times comparing chemotherapy and ET, with slightly longer PFS for targeted strategies (PI3K/mTOR). These results highlight a major need to better understand the mechanisms of CDK4/6i resistance and identify new therapeutic strategies for these patients.
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Hermansyah D, Firsty NN, Alhudawy MN, Nasution RA. The Combination of CDK 4/6 Inhibitors plus Endocrine Treatment versus Endocrine Treatment Alone in Hormone-receptor (HR)-Positive breast Cancer: a Systematic Review and Meta-analysis. Med Arch 2022; 76:333-342. [PMID: 36545458 PMCID: PMC9760242 DOI: 10.5455/medarh.2022.76.333-342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/10/2022] [Indexed: 11/08/2022] Open
Abstract
Background The identification of the novel targeted therapy i.e., cyclin-dependent kinases (CDKs) 4/6 inhibitor as combined with the endocrine regimen revealed a considerable capability to increase the managements' effectivity of hormone-receptor-positive (HR+) and HER2- breast cancer (BC). Objective This study aims to compare the latter combination strategies versus hormonal therapy alone to determine its applicability in the treatment of HR+/HER2- BC. Methods We established the review based on the clinical trials as collected from several scientific databases from January 2011 to April 2021. RevMan 5.4 was utilized in statistical analysis and risk of bias (RoB) measurement. 5110 participants from 9 different trials were included in this review with similar baseline characteristics. Results According to our analysis of the intention-to-treat (ITT) group, CDK 4/6 inhibitor arms exhibited better overall response rate (ORR) as indicated by the relative risk (RR) (randomized-effect model (REM), 1.59 [1.37, 1.86]; 95% confidence interval (CI); P <0.00001) and higher clinical benefit rate (CBR) (RR, 1.22 [1.13, 1.32]; 95% CI; REM; P <0.00001). The combination regiment also proved to be effective in reducing the rate of progressive disease (PD) in the ITT group (RR 0.46 [0.39, 0.54]; CI 95%; FEM; P <0.00001. Although the rate of adverse effects especially the hematological reactions was significantly lower in the endocrine alone arm, other system reactions were fairly comparable. Conclusion The introduction of CDK 4/6 inhibitor to the endocrine-based regiment is proved beneficial to patients with HR+/HER2- BC even though the most recommended anti-hormonal to be combined remains questionable.
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Affiliation(s)
- Dedy Hermansyah
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Naufal Nandita Firsty
- Undergraduate Program in Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Muhammad Nuh Alhudawy
- Undergraduate Program in Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Raja Alwan Nasution
- Undergraduate Program in Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
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Lee JS, Yost SE, Li SM, Cui Y, Frankel PH, Yuan YC, Schmolze D, Egelston CA, Guo W, Murga M, Chang H, Bosserman L, Yuan Y. Genomic Markers of CDK 4/6 Inhibitor Resistance in Hormone Receptor Positive Metastatic Breast Cancer. Cancers (Basel) 2022; 14:3159. [PMID: 35804935 PMCID: PMC9264913 DOI: 10.3390/cancers14133159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023] Open
Abstract
Cyclin-dependent kinase 4/6 inhibitors are the standard of care for hormone receptor-positive metastatic breast cancer. This retrospective study reports on genomic biomarkers of CDK 4/6i resistance utilizing genomic data acquired through routine clinical practice. Patients with HR+ MBC treated with palbociclib, ribociclib, or abemaciclib and antiestrogen therapy were identified. Patients were grouped into early (<6 months); intermediate (6−24 months for 0−1 lines; 6−9 months for ≥2 lines); or late progressors (>24 months for 0−1 lines; >9 months PFS for ≥2 lines). NGS and RNA sequencing data were analyzed in association with PFS, and survival analysis was stratified by prior lines of chemotherapy. A total of 795 patients with HR+ MBC treated with CDK 4/6i were identified. Of these, 144 (18%) patients had genomic data and 29 (3.6%) had RNA data. Among the 109 patients who received CDK4/6i as 1st- or 2nd-line therapy, 17 genes showed associations with PFS (p-value ≤ 0.15 and HR ≥ 1.5 or HR < 0.5). Whole transcriptome RNAseq was analyzed for 24/109 (22%) patients with 0−1 prior lines of therapy and 56 genes associated with PFS (HR ≥ 4 or HR ≤ 0.25 and FDR ≤ 0.15). In this retrospective analysis, genomic biomarkers including FGFR1 amplification, PTEN loss, and DNA repair pathway gene mutations showed significant associations with shorter PFS for patients receiving CDK4/6 inhibitor therapy.
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Affiliation(s)
- Jin Sun Lee
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
| | - Susan E. Yost
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
| | - Sierra Min Li
- Department of Biostatistics, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (S.M.L.); (Y.C.); (P.H.F.)
| | - Yujie Cui
- Department of Biostatistics, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (S.M.L.); (Y.C.); (P.H.F.)
| | - Paul H. Frankel
- Department of Biostatistics, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (S.M.L.); (Y.C.); (P.H.F.)
| | - Yate-Ching Yuan
- Department of Computational Quantitative Medicine, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Daniel Schmolze
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Colt A. Egelston
- Department of Immuno-Oncology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (C.A.E.); (W.G.)
| | - Weihua Guo
- Department of Immuno-Oncology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (C.A.E.); (W.G.)
| | - Mireya Murga
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
| | - Helen Chang
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
| | - Linda Bosserman
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
| | - Yuan Yuan
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (J.S.L.); (S.E.Y.); (M.M.); (H.C.); (L.B.)
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Shikanai A, Horimoto Y, Ishizuka Y, Uomori T, Nakai K, Arakawa A, Saito M. Clinicopathological Features Related to the Efficacy of CDK4/6 Inhibitor-Based Treatments in Metastatic Breast Cancer. Breast Cancer (Auckl) 2022; 16:11782234211065148. [PMID: 35002243 PMCID: PMC8738870 DOI: 10.1177/11782234211065148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 11/17/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Resistance to endocrine therapy has been a major obstacle in the management of hormone receptor (HR)-positive metastatic breast cancer (MBC). Meanwhile, a number of treatments are available to such patients, and physicians often encounter difficulties in choosing the most appropriate treatments for individual patients. The combination of CDK 4/6 inhibitors (CDKi) and endocrine therapy has now become a standard treatment for HR-positive and human epidermal growth factor receptor 2 (HER2)-negative MBC. However, no predictive markers for CDKi-based treatments have been established. Considering their side effects and the financial burden on patients, identifying such markers is crucial. Methods: Clinicopathological features of 107 patients with HR-positive HER2-negative MBC, who received CDKi-based treatments at our institution were retrospectively investigated. HR status in distant metastatic lesions and immunocompetent cells in peripheral blood were also studied. Results: Progression-free survival (PFS) was significantly shorter in patients whose primary tumour was high grade (P = 0.016) or high neutrophil-to-lymphocyte ratio (NLR) at baseline (P = 0.017). Meanwhile, there were no differences in other factors, such as expression levels of hormone receptors. Patients whose metastatic lesions were of low tumour grade or high Ki67 labelling index had longer PFS, and such trends were more obvious than primary lesions. Conclusion: Our data indicate that tumour grade in primary lesion and NLR are potential predictive factors for CDKi-based treatments. Moreover, pathological assessment of metastatic lesions might also be useful.
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Affiliation(s)
- Ayana Shikanai
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Yoshiya Horimoto
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan.,Department of Human Pathology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Yumiko Ishizuka
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Toshitaka Uomori
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Katsuya Nakai
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Atsushi Arakawa
- Department of Human Pathology, School of Medicine, Juntendo University, Tokyo, Japan
| | - Mitsue Saito
- Department of Breast Oncology, School of Medicine, Juntendo University, Tokyo, Japan
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Fujii S, Oura S, Makimoto S. Surgery to Oligometastatic Breast Cancer after Excellent Response to Palbociclib and Letrozole Therapy: Pitfall of Ultrasound Therapeutic Evaluation. Case Rep Oncol 2021; 14:1601-1607. [PMID: 34950003 PMCID: PMC8647088 DOI: 10.1159/000519567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/08/2021] [Indexed: 11/19/2022] Open
Abstract
A 48-year-old woman with regional recurrences of breast cancer in the axillar and supraclavicular regions was referred to our hospital. Under the diagnosis of recurrent luminal breast cancer with a high Ki-67 labeling index of >30% and a disease-free interval of 13 years, the patient began to receive palbociclib, letrozole, and luteinizing hormone-releasing hormone agonist, resulting in marked response of the supraclavicular lesion and stable disease of the axillar lesion on ultrasound (US) evaluation. Positron emission tomography (PET)/computed tomography of the axillar and supraclavicular foci showed high and no avidities before and after treatment, respectively. The unmovable neck lesion became movable with the treatment. The patient, therefore, underwent surgical resection of the 2 metastatic foci to examine the discordant therapeutic efficacy against the 2 metastatic foci on 2 image modalities, that is, US and PET, and to possibly get a cure of the breast cancer oligometastasis. Pathological examination showed marked fibrosis and scant cancer cell residuals with microcalcifications in the neck tumor and massive sarcoid-like reaction with scant cancer cell residuals in the axillary nodes. The residual cancer cells showed estrogen and progesterone receptor positivities, human epidermal growth factor receptor type 2 negativity, and an extremely low Ki-67 labeling index of 2.5%. The patient recovered uneventfully and has continued palbociclib-containing endocrine therapy for 1 year without any recurrences. Breast oncologists should well understand the basic principles of internal echo formation on US and take the presence of sarcoid-like reaction in the cancer cell clusters into consideration on the therapeutic evaluation of metastatic breast cancer.
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Affiliation(s)
- Suzuka Fujii
- Department of Surgery, Kishiwada Tokushukai Hospital, Kishiwada, Japan
| | - Shoji Oura
- Department of Surgery, Kishiwada Tokushukai Hospital, Kishiwada, Japan
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Nabieva N, Fasching PA. Endocrine Treatment for Breast Cancer Patients Revisited-History, Standard of Care, and Possibilities of Improvement. Cancers (Basel) 2021; 13:5643. [PMID: 34830800 PMCID: PMC8616153 DOI: 10.3390/cancers13225643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 01/16/2023] Open
Abstract
PURPOSE OF REVIEW Due to the findings of current studies and the approval of novel substances for the therapy of hormone-receptor-positive breast cancer patients, the established standards of endocrine treatment are changing. The purpose of this review is to give an overview of the history of endocrine treatment, to clarify its role in the present standard of care, and to discuss the possibilities of improvement. RECENT FINDINGS Tamoxifen, aromatase inhibitors, and fulvestrant are the main drugs that have been used for decades in the therapy of hormone-receptor-positive breast cancer patients. However, since a relevant number of women suffer at some point from disease recurrence or progression, several novel substances are being investigated to overcome resistance mechanisms by interfering with certain signaling pathways, such as the PI3K/AKT/mTOR or the CDK4/6 pathways. mTOR and CDK4/6 inhibitors were the first drugs approved for this purpose and many more are in development. SUMMARY Endocrine treatment is one of the best tolerable cancer therapies available. Continuous investigation serves to improve patients' outcomes and modernize the current standard of care. Considering the resistance mechanisms and substances analyzed against these, endocrine treatment of hormone-receptor-positive breast cancer is on the brink of a new era.
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Affiliation(s)
- Naiba Nabieva
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany;
- Novartis Oncology, Novartis Pharma GmbH, 90429 Nuremberg, Germany
| | - Peter A. Fasching
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany;
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Yuan Y, Lee J, Yost SE, Frankel PH, Ruel C, Egelston CA, Guo W, Padam S, Tang A, Martinez N, Schmolze D, Presant C, Ebrahimi B, Yeon C, Sedrak M, Patel N, Portnow J, Lee P, Mortimer J. Phase I/II trial of palbociclib, pembrolizumab and letrozole in patients with hormone receptor-positive metastatic breast cancer. Eur J Cancer 2021; 154:11-20. [PMID: 34217908 PMCID: PMC8691850 DOI: 10.1016/j.ejca.2021.05.035] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/11/2021] [Accepted: 05/24/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND CDK4/6 inhibitors modulate immune response in breast cancer. This phase I/II trial was designed to test the safety and efficacy of palbociclib, pembrolizumab and letrozole in women with hormone receptor positive (HR+) human epidermal growth factor receptor 2 negative (HER2-) metastatic breast cancer (MBC). PATIENTS AND METHODS Women with stage IV HR+ HER2- MBC were enrolled and treated with palbociclib, pembrolizumab and letrozole. Primary end-points were safety, tolerability and efficacy. RESULTS Between November 2016 and July 2020, 23 patients were enrolled with 20 evaluable for response, including 4 patients in cohort 1 and 16 patients in cohort 2. Cohort 1 median age was 48 years (33-70) and cohort 2 median age was 55 (37-75). Cohort 1 closed early due to limited accrual. Grade III-IV adverse events were neutropenia (83%), leucopaenia (65%), thrombocytopenia (17%) and elevated liver enzymes (17%). In cohort 1, 50% achieved a partial response (PR) and 50% had stable disease (SD). In cohort 2, 31% achieved complete response (CR), 25% had PR and 31% had SD by Response Evaluation Criteria in Solid Tumours version 1.1. Median progression-free survival was 25.2 months (95% confidence interval [CI] 5.3, not reached) and median overall survival was 36.9 months (95% CI 36.9, not reached) in cohort 2 with a median follow-up of 24.8 months (95% CI 17.1, not reached). A correlative immune biomarker analysis was published separately. CONCLUSION The combination of palbociclib, pembrolizumab and letrozole is well tolerated, and a complete response rate of 31% was identified in HR+ MBC patients who received this combination as front-line therapy. Confirmatory trials are required to better understand the immune-priming effects of CDK4/6 inhibitors.
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Affiliation(s)
- Y. Yuan
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA,Corresponding author: Dr. Yuan Yuan, Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, 1500 E. Duarte Road, Duarte, CA 91010 USA, Phone: 626-256-4673, Fax: 626-301-8233,
| | - J. Lee
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - S. E. Yost
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - P. H. Frankel
- Department of Biostatistics, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - C. Ruel
- Department of Biostatistics, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - C. A. Egelston
- Department of Immune-Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - W. Guo
- Department of Immune-Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - S. Padam
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - A. Tang
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - N. Martinez
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - D. Schmolze
- Department of Pathology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - C. Presant
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - B. Ebrahimi
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - C. Yeon
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - M. Sedrak
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - N. Patel
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - J. Portnow
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - P. Lee
- Department of Immune-Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | - J. Mortimer
- Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
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10
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Kristensen KB, Thomsen IMN, Berg T, Kodahl AR, Jensen AB. Dose modifications of ribociclib and endocrine therapy for treatment of ER+ HER2- metastatic breast cancer. Breast Cancer Res Treat 2021; 188:799-809. [PMID: 33837869 DOI: 10.1007/s10549-021-06215-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/27/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE Treatment for estrogen receptor positive (ER+), human epidermal receptor 2 negative (HER2-) metastatic breast cancer (MBC) has improved with the approval of CDK 4/6 inhibitors. Clinical trials with the CDK4/6 inhibitor ribociclib, suggest that 35% to 57.5% of the patients require a dose reduction during ribociclib treatment. Data on the possible consequences of dose reduction concerning efficacy is needed. METHODS A retrospective cohort study on patients with ER+ HER2- MBC from three Danish oncology departments. Data on tolerability and progression-free survival were collected from electronic health records. RESULTS One hundred and twenty-eight patients with ER+ HER2- MBC who initiated ribociclib treatment between 1st of January 2018 to 31st of March 2020 were included in our analysis. Of these patients, 48.4% required one or more dose reductions. Overall median PFS was 19.2 months (CI-95% 14.3-NR). Patients with one or more dose reductions did not have decreased median PFS (19.2 months, CI-95% 14.3-NR compared to 12.2 months, CI-95% 7.3-NR, p = 0.078). Frequency of adverse events were as previously reported, with grade III and IV neutropenia occurring in 45.3% and 7% of patients, respectively. Patients treated with fulvestrant versus an aromatase inhibitor and patients with lymph node involvement at baseline had lower odds of requiring a dose reduction (ORa = 0.30, CI-95% 0.12-0.73 & ORa = 0.41, CI-95% 0.18-0.89, respectively). CONCLUSION Our results indicate that dose reduction of ribociclib is safe and do not compromise the efficacy of the treatment. Furthermore, the study supports translation of results from the MONALEESA trials to patients treated in real-world clinical settings.
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11
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Papageorgiou C, Zagouri F, Tampakis K, Georgakopoulou R, Manios E, Kafouris P, Benetos G, Koutagiar I, Anagnostopoulos C, Dimopoulos MA, Toutouzas K. Vascular Inflammation and Cardiovascular Burden in Metastatic Breast Cancer Female Patients Receiving Hormonal Treatment and CDK 4/6 Inhibitors or Everolimus. Front Cardiovasc Med 2021; 8:638895. [PMID: 33732735 PMCID: PMC7959765 DOI: 10.3389/fcvm.2021.638895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/04/2021] [Indexed: 01/30/2023] Open
Abstract
Background: Chemotherapy regimens for breast cancer treatment can promote vascular dysfunction and lead to high cardiovascular risk. Purpose: To investigate the cardiovascular burden and vascular inflammation in metastatic breast cancer patients receiving CDK 4/6 inhibitors or everolimus in addition to standard hormonal treatment. Methods: 22 consecutive female patients with metastatic breast cancer were enrolled. Relative wall thickness (RWT) and left ventricle mass (LVM) measurements by transthoracic echocardiography were obtained followed by 24-h ambulatory blood pressure monitoring, and 18F-fluorodeoxyglucose positron-emission tomography/computed tomography imaging. Uptake of the radiotracer in the aortic wall was estimated as tissue-to-background ratio (TBR). Each patient was assessed for the aforementioned parameters before the initiation and after 6 months of treatment. Results: At follow up, patients assigned to CDK 4/6 treatment demonstrated increased 24-h systolic blood pressure (SBP) (p = 0.004), daytime SBP (p = 0.004) and night time SBP (p = 0.012) (Group effect). The 24-h mean arterial pressure measurements were also higher in CDK 4/6 population, in comparison to everolimus that displayed firm values (Group effect- p = 0.035, Interaction effect-p = 0.023). Additionally, 24 h diastolic blood pressure recordings in CDK 4/6 therapy were higher opposed to everolimus that remained consistent (Interaction effect- p = 0.010). In CDK 4/6 group, TBR aorta also increased significantly, whereas TBR values in everolimus remained stable (Interaction effect-p = 0.049). Both therapeutic regimens displayed statistically significant damaging effect to RWT and LVM. Conclusion: CDK 4/6 inhibitors and hormonal treatment can lead to increased vascular inflammation, and higher blood pressure compared to the combination of everolimus and hormonal treatment. Moreover, both treatment strategies promoted left ventricle remodeling.
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Affiliation(s)
- Christos Papageorgiou
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Tampakis
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Rebecca Georgakopoulou
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathios Manios
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Pavlos Kafouris
- Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece.,Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgios Benetos
- 1st Department of Cardiology, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Iosif Koutagiar
- Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Constantinos Anagnostopoulos
- Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Meletios A Dimopoulos
- Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Toutouzas
- 1st Department of Cardiology, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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12
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David S, Ho G, Day D, Harris M, Tan J, Goel S, Hanna GG, Srivastava R, Kruss G, McDowell L, White M. Enhanced toxicity with CDK 4/6 inhibitors and palliative radiotherapy: Non-consecutive case series and review of the literature. Transl Oncol 2020; 14:100939. [PMID: 33227663 PMCID: PMC7689545 DOI: 10.1016/j.tranon.2020.100939] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 11/25/2022] Open
Abstract
CDK 4/6 inhibitors are commonly used in patients with advanced hormone receptor positive breast cancer. Many patients receive palliative radiotherapy for symptomatic disease concomitantly with a CDK 4/6 inhibitor. There is a paucity of data on the safety of combining a CDK 4/6 inhibitor with palliative radiotherapy. We report on 5 cases at our institution where enhanced radiotherapy toxicity was observed when RT was delivered during or prior to treatment with a CDK 4/6 inhibitor. We review pre-clinical and mechanistic data and hypothesise on possible mechanisms for this phenomenon.
Current first-line systemic treatment in most patients with metastatic hormone receptor-positive, HER-2 negative breast cancer is an aromatase inhibitor in combination with a cyclin dependant kinase (CDK) 4/6 inhibitor. Frequently, these patients require palliative radiotherapy (RT) for symptomatic disease management. There is a paucity of data on the safety of combining a CDK 4/6 inhibitor with palliative RT, with conflicting case reports in the literature. We report on 5 cases at our institution where enhanced radiotherapy toxicity was observed when palliative doses of RT was delivered during or prior to treatment with a CDK 4/6 inhibitor. After review of pre-clinical and mechanistic data, we hypothesise that the effects of CDK4/6 inhibition on normal tissue and the tumour microenvironment may impede tissue recovery and exacerbate acute radiation and radiation recall toxicities. Further studies are required to clarify the potential toxicities of this combination. Clinicians should consider the potential risks when combining CDK 4/6 inhibitors with palliative RT and individualise patient management accordingly.
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Affiliation(s)
- Steven David
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Monash Cancer Centre, East Bentleigh, VIC, Australia.
| | - Gwo Ho
- Monash Cancer Centre, East Bentleigh, VIC, Australia; School of Clinical Sciences, Monash University, Clayton, VIC, Australia
| | - Daphne Day
- Monash Cancer Centre, East Bentleigh, VIC, Australia; School of Clinical Sciences, Monash University, Clayton, VIC, Australia
| | - Marion Harris
- Monash Cancer Centre, East Bentleigh, VIC, Australia
| | - Jennifer Tan
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Monash Cancer Centre, East Bentleigh, VIC, Australia
| | - Shom Goel
- Department of Cancer Medicine, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
| | - Gerard G Hanna
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
| | | | - Gill Kruss
- Monash Cancer Centre, East Bentleigh, VIC, Australia
| | - Lachlan McDowell
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
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13
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Das A, Henderson FC, Alshareef M, Porto GBF, Kanginakudru I, Infinger LK, Vandergrift WA, Lindhorst SM, Varma AK, Patel SJ, Cachia D. MGMT-inhibitor in combination with TGF-βRI inhibitor or CDK 4/6 inhibitor increases temozolomide sensitivity in temozolomide-resistant glioblastoma cells. Clin Transl Oncol 2020; 23:612-619. [PMID: 32710211 DOI: 10.1007/s12094-020-02456-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/09/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Glioblastoma (GB) remains an incurable and deadly brain malignancy that often proves resistant to upfront treatment with temozolomide. Nevertheless, temozolomide remains the most commonly prescribed FDA-approved chemotherapy for GB. The DNA repair protein methylguanine-DNA methyl transferase (MGMT) confers resistance to temozolomide. Unsurprisingly temozolomide-resistant tumors tend to possess elevated MGMT protein levels or lack inhibitory MGMT promotor methylation. In this study, cultured human temozolomide resistance GB (43RG) cells were introduced to the MGMT inhibitor O6-benzylguanine combined with temozolomide and either LY2835219 (CDK 4/6 inhibitor) or LY2157299 (TGF-βRI inhibitor) seeking to overcome GB treatment resistance. METHODS Treatment effects were assessed using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, western blot, cell viability, and cell cycle progression. RESULTS Our in vitro study demonstrated that sequential treatment of O6-Benzylguanine with either LY2385219 or LY2157299-enhanced temozolomide enhanced sensitivity in MGMT+ 43RG cells. Importantly, normal human neurons and astrocytes remained impervious to the drug therapies under these conditions. Furthermore, LY2835219 has additional anti-proliferative effects on cell cycling, including induction of an RB-associated G (1) arrest via suppression of cyclin D-CDK4/6-Rb pathway. LY2157299 enhances anti-tumor effect by disrupting TGF-β-dependent HIF-1α signaling and by activating both Smad and PI3K-AKT pathways towards transcription of S/G2 checkpoints. CONCLUSION This study establishes the groundwork for the development of a combinatorial pharmacologic approach by using either LY2385219 or LY2157299 inhibitor plus O6-Benzylguanine to augment temozolomide response in temozolomide-resistant GB cells.
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Affiliation(s)
- A Das
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA.
| | - F C Henderson
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - M Alshareef
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - G B F Porto
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - I Kanginakudru
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - L K Infinger
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - W A Vandergrift
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - S M Lindhorst
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - A K Varma
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - S J Patel
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
| | - D Cachia
- Department of Neurosurgery (Divisions of Neuro-Oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina at Charleston, Charleston, SC, 29425, USA
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14
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Ball S, Swarup S, Sultan A, Thein KZ. Increased risk of cardiac conduction abnormalities with ribociclib in patients with metastatic breast cancer: A combined analysis of phase III randomized controlled trials. Hematol Oncol Stem Cell Ther 2020; 14:260-262. [PMID: 32413420 DOI: 10.1016/j.hemonc.2020.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 12/24/2019] [Accepted: 03/11/2020] [Indexed: 10/24/2022] Open
Affiliation(s)
- Somedeb Ball
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
| | - Sriman Swarup
- Division of Hematology & Medical Oncology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Anita Sultan
- Division of Hematology & Medical Oncology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Kyaw Zin Thein
- Division of Hematology & Medical Oncology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
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15
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Wahdan-Alaswad R, Liu B, Thor AD. Targeted lapatinib anti-HER2/ErbB2 therapy resistance in breast cancer: opportunities to overcome a difficult problem. Cancer Drug Resist 2020; 3:179-198. [PMID: 35582612 PMCID: PMC9090587 DOI: 10.20517/cdr.2019.92] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/09/2020] [Accepted: 02/03/2020] [Indexed: 12/11/2022]
Abstract
Approximately 20% of invasive breast cancers have upregulation/gene amplification of the oncogene human epidermal growth factor receptor-2 (HER2/ErbB2). Of these, some also express steroid receptors (the so-called Luminal B subtype), whereas others do not (the HER2 subtype). HER2 abnormal breast cancers are associated with a worse prognosis, chemotherapy resistance, and sensitivity to selected anti-HER2 targeted therapeutics. Transcriptional data from over 3000 invasive breast cancers suggest that this approach is overly simplistic; rather, the upregulation of HER2 expression resulting from gene amplification is a driver event that causes major transcriptional changes involving numerous genes and pathways in breast cancer cells. Most notably, this includes a shift from estrogenic dependence to regulatory controls driven by other nuclear receptors, particularly the androgen receptor. We discuss members of the HER receptor tyrosine kinase family, heterodimer formation, and downstream signaling, with a focus on HER2 associated pathology in breast carcinogenesis. The development and application of anti-HER2 drugs, including selected clinical trials, are discussed. In light of the many excellent reviews in the clinical literature, our emphasis is on recently developed and successful strategies to overcome targeted therapy resistance. These include combining anti-HER2 agents with programmed cell death-1 ligand or cyclin-dependent kinase 4/6 inhibitors, targeting crosstalk between HER2 and other nuclear receptors, lipid/cholesterol synthesis to inhibit receptor tyrosine kinase activation, and metformin, a broadly inhibitory drug. We seek to facilitate a better understanding of new approaches to overcome anti-HER2 drug resistance and encourage exploration of two other therapeutic interventions that may be clinically useful for HER+ invasive breast cancer patients.
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Affiliation(s)
- Reema Wahdan-Alaswad
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora CO 80014, USA
| | - Bolin Liu
- Department of Genetics, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Ann D Thor
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora CO 80014, USA
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16
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Tamura K. Differences of cyclin-dependent kinase 4/6 inhibitor, palbociclib and abemaciclib, in breast cancer. Jpn J Clin Oncol 2020; 49:993-998. [PMID: 31665472 DOI: 10.1093/jjco/hyz151] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/24/2019] [Accepted: 08/27/2019] [Indexed: 12/18/2022] Open
Abstract
Both palbociclib and abemaciclib are, oral, highly selective inhibitors of cyclin-dependent kinase 4 and 6, which are proteins involved in cell differentiation and growth. In pivotal phase III trials (PALOMA and MONARCH), they demonstrated a significant improvement in median progression-free survival in combination with a nonsteroidal aromatase inhibitor in the first-line, and with a fulvestrant in the second-line in hormone receptor-positive and HER2-negative metastatic breast cancer, respectively. Both palbociclib and abemaciclib were approved, however, ribociclib, the third cyclin-dependent kinase 4/6 inhibitor, has not been approved in Japan. The overall benefits from palbociclib and abemaciclib seem to be equivalent. Subsets analyses suggest that clinical benefits of palbociclib are associated with bone-only disease at baseline, no measurable disease, sensitive to previous endocrine therapy and longer disease-free interval. In contrast, additional benefits from abemaciclib in combination with nonsteroidal aromatase inhibitor or fulvestrant seem to have a relationship with visceral disease, liver metastasis, primary resistant to endocrine therapy, and short treatment-free interval. Abemaciclib induces senescence and apoptosis more than palbociclib does in a time-dependent manner and has potential to produce tumor shrinkage by single use. Neutropenia is more frequent in palbociclib, in contrast, diarrhea, nausea, and liver dysfunction are frequent in abemaciclib. In this review, we provide an overview of the two kinds of cyclin-dependent kinase 4/6 inhibitor, which were already approved in Japan. These differences might be useful information for the proper use in daily practice.
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Affiliation(s)
- Kenji Tamura
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
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17
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Hansra D, Jackson S, Sequeira J, Vazirani R, Alvarez R. Male patient with metastatic stage IV breast cancer achieves complete remission on second line Abemaciclib, Fulvestrant and Leuprolide: A case report. Mol Clin Oncol 2020; 12:120-125. [PMID: 31929882 PMCID: PMC6951239 DOI: 10.3892/mco.2019.1955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 10/08/2019] [Indexed: 12/31/2022] Open
Abstract
Male breast cancer occurs rarely, comprising <1% of breast cancers. Due to the low incidence of male breast cancer, clinical trials of this disease are lacking. Therefore, therapeutic strategies utilized in the management of female breast cancer are often applied to male patients with breast cancer. Specifically, clinical outcomes using CDK 4/6 inhibitors require further investigation in male patients. To the best of our knowledge, the present report presents the first known case of a male patient treated with second line Abemaciclib, Lupron and Fulvestrant, producing complete remission. To the best of our knowledge this is also the first report of complete remission in a male breast cancer patient with a regimen utilizing a CDK 4/6 inhibitor.
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Affiliation(s)
- Damien Hansra
- Cancer Treatment Centers of America, Breast Cancer Institute, Atlanta, GA 30265, USA
| | - Shirelle Jackson
- Cancer Treatment Centers of America, Breast Cancer Institute, Atlanta, GA 30265, USA
| | - Judy Sequeira
- Cancer Treatment Centers of America, Breast Cancer Institute, Atlanta, GA 30265, USA
| | - Rajendra Vazirani
- Cancer Treatment Centers of America, Breast Cancer Institute, Atlanta, GA 30265, USA
| | - Ricardo Alvarez
- Cancer Treatment Centers of America, Breast Cancer Institute, Atlanta, GA 30265, USA
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18
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Lee KA, Shepherd ST, Johnston SR. Abemaciclib, a potent cyclin-dependent kinase 4 and 6 inhibitor, for treatment of ER-positive metastatic breast cancer. Future Oncol 2019; 15:3309-3326. [PMID: 31464525 DOI: 10.2217/fon-2019-0169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
CDK 4/6 inhibitors have given patients with estrogen receptor (ER)-positive/HER2-negative (ER+/HER2ࢤ) advanced metastatic breast cancer important new therapeutic options. Abemaciclib is different to the other two licensed and approved CDK 4/6 inhibitors, palbociclib and ribociclib, both in dosing schedule (continuous vs intermittent) and toxicity profile (less neutropenia, more diarrhea), yet the magnitude of clinical benefit seen in first- and second-line studies is very similar. One of the key issues for clinicians is when to use these therapies. Ultimately, the biggest impact of abemaciclib could be in the adjuvant setting if the current MONARCH-E trial in high-risk node-positive patients is positive. The emerging biomarker work in the early breast cancer setting (i.e., neoMONARCH) may determine which tumors are most sensitive to abemaciclib.
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Affiliation(s)
- Karla A Lee
- Breast Unit, The Royal Marsden NHS Foundation Trust, Chelsea, London SW3 6JJ, UK
| | - Scott Tc Shepherd
- Breast Unit, The Royal Marsden NHS Foundation Trust, Chelsea, London SW3 6JJ, UK
| | - Stephen Rd Johnston
- Breast Unit, The Royal Marsden NHS Foundation Trust, Chelsea, London SW3 6JJ, UK
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19
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Yao J, Jiang X, Liu Q, Yuan X, Feng T, Li K, Zhao L. An available strategy based on accurate mass by ultra high performance liquid chromatography coupled to Fourier transform ion cyclotron resonance mass spectrometry technology to characterization of metabolic profile of palbociclib in rat urine, feces and bile. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1124:37-46. [PMID: 31176268 DOI: 10.1016/j.jchromb.2019.05.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/09/2019] [Accepted: 05/28/2019] [Indexed: 11/25/2022]
Abstract
Palbociclib (named PD 0332991) is a novel highly selective cyclin-dependent kinase 4 and 6 (CDK 4/6) inhibitor, which has been approved by the Food and Drug Administration (FDA) for the treatment of hormone-receptor-positive advanced breast cancer. This present study developed a comprehensive strategy to investigate the metabolic profile of palbociclib in rat urine, feces and bile samples based on an ultra high performance liquid chromatography coupled to Fourier transform ion cyclotron resonance mass spectrometry (UHPLC-FT-ICR MS). A total of 29 metabolites, including 18 phase I metabolites and 11 phase II metabolites, were detected and identified. The metabolic pathways included hydroxylation, oxidation, dehydrogenation, N-dealkylation, carbonylation, oxidative deamination, acetylation, glucuronidation, sulphate conjugation as well as the crossover of multiple metabolic pathways in vivo, and 16 of these metabolites were proposed for the first time. This study showed an insight into the metabolism of palbociclib in vivo, which may provide relevant chemical information for subsequent studies in the future.
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Affiliation(s)
- Jiaxin Yao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xu Jiang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qiao Liu
- Chenzhou No.1 People's Hospital, Chenzhou 423000, China
| | - Xuemei Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tiantian Feng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Kunjie Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China; Post-doctoral Scientific Research Workstation, Shanghai Pharmaceutical Group, Shanghai 200020, China.
| | - Longshan Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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20
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Guo L, Hu Y, Chen X, Li Q, Wei B, Ma X. Safety and efficacy profile of cyclin-dependent kinases 4/6 inhibitor palbociclib in cancer therapy: A meta-analysis of clinical trials. Cancer Med 2019; 8:1389-1400. [PMID: 30897298 PMCID: PMC6488107 DOI: 10.1002/cam4.1970] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/06/2018] [Accepted: 12/22/2018] [Indexed: 02/05/2023] Open
Abstract
Background Palbociclib is a small‐molecule, cyclin‐dependent kinase 4 and 6 inhibitor, which prevents phosphorylation of the retinoblastoma (Rb) protein and inhibits cell‐cycle progression from G1 to S phase. We performed this meta‐analysis to estimate the safety and efficacy of palbociclib in cancer patients from clinical trials. Methods PubMed and EMBASE were searched for eligible studies. Adverse events (AE) of grade ≥3 and all‐grade (1‐5) were extracted to calculate event rates. Odds ratios (ORs) with 95% confidence interval (CI) were calculated to estimate the safety of palbociclib in endocrine treatment‐combined studies. A fixed effects model was used when homogeneity was low (I2 ≤ 50%). A random effects model was adopted when there was a significant heterogeneity (I2 > 50%). For efficacy endpoints, hazard ratio (HR) and 95% CI for progression‐free survival (PFS) or overall survival (OS) were extracted and analyzed. Results Nine clinical trials representing 1534 patients were identified. The most frequently observed all‐grade adverse events (AEs) in patients treated with palbociclib were neutropenia (event rate: 68.1%), leukopenia (51.7%), fatigue (35.9%), anemia (34.7%), and thrombocytopenia (30.9%). The most common grade 3 or more toxicities were neutropenia (51.6%), leukopenia (29.4%), and thrombocytopenia (7.5%). Hematologic adverse events had high occurrence in the palbociclib group. The pooled analysis of survival outcomes suggested that palbociclib produced clinical benefits in breast cancers and Rb‐positive tumors. More specifically, palbociclib was associated with significant improvement of PFS (HR: 0.518, 95% CI: 0.444‐0.604) in the treatment of ER‐positive and HER2‐negative breast cancer. Conclusions Hematologic adverse events were common in palbociclib‐treated cancer patients. Since palbociclib produced a higher PFS rate with a low serious complication rate, it can be a promising novel target therapy drug for treating ER‐positive and HER2‐negative breast cancer.
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Affiliation(s)
- Linghong Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Yuanyuan Hu
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Xi Chen
- West China School of Stomatology, Sichuan University, Chengdu, China
| | - Qingfang Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Benling Wei
- General Hospital of Xuzhou Mining Group, Xuzhou, China
| | - Xuelei Ma
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Yamamoto T, Kanaya N, Somlo G, Chen S. Synergistic anti-cancer activity of CDK4/6 inhibitor palbociclib and dual mTOR kinase inhibitor MLN0128 in pRb-expressing ER-negative breast cancer. Breast Cancer Res Treat 2019; 174:615-25. [PMID: 30607633 DOI: 10.1007/s10549-018-05104-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/14/2018] [Indexed: 12/31/2022]
Abstract
PURPOSE Palbociclib is an approved cyclin-dependent kinase (CDK) 4/6 inhibitor for treatment of patients with ER-positive and HER2-negative breast cancers. While Retinoblastoma protein (pRb), a major substrate of CDK4/6, is a potential target in triple negative breast cancer (TNBC), the usefulness of CDK4/6 inhibitors in this cancer has not been established. This preclinical study investigated the combination effects of palbociclib and the dual mammalian target of rapamycin (mTOR) kinase inhibitor MLN0128 in estrogen receptor (ER)-negative breast cancer in vitro and in vivo. METHODS The combined effects of two drugs on three TNBC cell lines (MB231, MB468, and CAL148) and an ER-negative and HER2-positive cell line (MB453) were investigated by MTT assay and colony formation analysis. Cell cycle measurements were examined as well as changes in expression of molecules related to G1/S transition and the mTOR pathway. Importantly, a pRb-expressing TNBC patient-derived xenograft (PDX) model was used to assess the effects of the combination in vivo. RESULTS A combination of palbociclib and MLN0128 synergistically inhibited the proliferation of pRb-expressing cell lines and induced G1 cell cycle arrest. Western blot analysis revealed that CDK4/6-pRb and mTOR pathways were inhibited by these treatments. In pRb-expressing TNBC PDX, the combination treatment drastically suppressed tumor growth compared to either the control or single drug treatments. In addition, the combination treatment significantly reduced the number of Ki67-positive cells. CONCLUSIONS We revealed that palbociclib and MLN0128 had synergistic anti-cancer activity in both pRb + ER-negative cell lines and a TNBC PDX model. Our results indicate that such combination therapy is worthy of further investigation in a clinical setting.
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Princic N, Aizer A, Tang DH, Smith DM, Johnson W, Bardia A. Predictors of systemic therapy sequences following a CDK 4/6 inhibitor-based regimen in post-menopausal women with hormone receptor positive, HEGFR-2 negative metastatic breast cancer. Curr Med Res Opin 2019; 35:73-80. [PMID: 30175631 DOI: 10.1080/03007995.2018.1519500] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Objective: To identify systemic treatment in the real-world following treatment with a cyclin-dependent kinase 4/6 inhibitor (CDKi) among post-menopausal women with hormone receptor positive, human epidermal growth factor receptor 2 Negative (HR+/HER2-) metastatic breast cancer (mBC).Methods: Post-menopausal women with HR+/HER2- mBC were identified from MarketScan claims databases between January 1, 2012 and October 31, 2017. Eligible mBC patients who received a CDKi-based line of therapy following metastasis diagnosis were selected. A line of therapy ended at the earlier of systemic therapy discontinuation, switch to new treatment, or censoring.Results: In total, 525 patients that received systemic therapy after a CDKi-based line were included (39.6% transitioned from use of a CDKi-based regimen in first line following metastasis diagnosis to any second line, and 60.4% shifted from a CDKi-based [second, third, or fourth line] to a subsequent line). Of post-CDKi second line regimens (n = 208), 38.0% were endocrine only, 35.6% were chemotherapy-based, 14.4% were everolimus-based, 9.6% were also CDKi-based line, and 2.4% were others. After adjusting for demographic and clinical characteristics, patients transitioning from a CDKi-based line to chemotherapy (vs others) had a trend of being more likely to have recurrent rapidly progressing disease, and were significantly less likely to have the prior CDKi-based line in combination with an AI (both p < .05).Conclusions: This population-based study suggests that rapidly progressing disease, metastatic site location, age, and endocrine therapy partner may be predictive of subsequent systemic therapy regimen selection after progression on a CDKi-based line therapy in patients with HR+/HER2- mBC.
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Affiliation(s)
| | - Ayal Aizer
- Brigham and Women's Hospital/Dana-Farber Cancer Institute, Harvard Medical School, Cambridge, MA, USA
| | - Derek H Tang
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | | | | | - Aditya Bardia
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Cambridge, MA, USA
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Dhakal A, Matthews CM, Levine EG, Salerno KE, Zhang F, Takabe K, Early AP, Edge SB, O'Connor T, Khoury T, Young JS, Opyrchal M. Efficacy of Palbociclib Combinations in Hormone Receptor-Positive Metastatic Breast Cancer Patients After Prior Everolimus Treatment. Clin Breast Cancer 2018; 18:e1401-e1405. [PMID: 29778787 PMCID: PMC10913429 DOI: 10.1016/j.clbc.2018.04.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/19/2018] [Accepted: 04/21/2018] [Indexed: 12/26/2022]
Abstract
PURPOSE Outcome data on hormone receptor positive (HR+), human epidermal growth factor receptor 2 (HER2) nonamplified (HER2-) metastatic breast cancer (MBC) treated with palbociclib after treatment with everolimus are lacking. The PALOMA-3 trial, showing benefit of palbociclib plus fulvestrant compared to fulvestrant alone in HR+HER2- MBC after progression while receiving endocrine therapy excluded women previously treated with everolimus. The objective of this study was to examine outcomes of HR+HER2- MBC with prior exposure to everolimus while receiving palbociclib-based therapy. PATIENTS AND METHODS A retrospective, single-institute review was conducted of HR+HER2- MBC from January 2014 to November 2016 in patients treated with palbociclib after prior treatment with everolimus. Progression-free survival (PFS) was defined as the time from initiation of palbociclib to the date of progression as determined by the treating physician based on radiologic, biochemical, and/or clinical criteria. Response rates were determined on the basis of available radiologic data. Objective response rate (ORR) was defined as the rate of any complete or partial responses; clinical benefit rate (CBR) was the rate of complete response, partial response, or stable disease for at least 24 weeks. RESULTS Twenty-three patients with a mean (range) age of 68 (42-81) years were identified. Kaplan-Meier estimate showed median PFS of 2.9 months (95% confidence interval, 2.1-4.2); ORR was 0 of 23 and CBR was 4 (17.4%) of 23. In the PALOMA-3 trial, median PFS, ORR, and CBR of palbociclib cohort were 9.5 months (95% confidence interval, 9.2-11.0), 19%, and 67%, respectively. CONCLUSION There is a limited clinical activity of palbociclib combinations after progression with everolimus combination therapy. Further studies are necessary to confirm these findings.
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Affiliation(s)
- Ajay Dhakal
- Deparmtent of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY.
| | | | - Ellis Glenn Levine
- Deparmtent of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | | | - Fan Zhang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Amy P Early
- Deparmtent of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Stephen B Edge
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Tracy O'Connor
- Deparmtent of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Thaer Khoury
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Jessica S Young
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Mateusz Opyrchal
- Deparmtent of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY
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Iyengar M, O’Hayer P, Cole A, Sebastian T, Yang K, Coffman L, Buckanovich RJ. CDK4/6 inhibition as maintenance and combination therapy for high grade serous ovarian cancer. Oncotarget 2018; 9:15658-15672. [PMID: 29644000 PMCID: PMC5884655 DOI: 10.18632/oncotarget.24585] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/21/2018] [Indexed: 12/26/2022] Open
Abstract
High grade serous ovarian cancer (HGSOC) is a disease with a high relapse rate and poor overall survival despite good initial responses to platinum-based therapy. Cell cycle inhibition with targeted CDK4/6 inhibitors is a new therapeutic approach showing promise as a maintenance therapy in cancer. As multiple genes in the CDK4/6 pathway are commonly mutated or dysregulated in ovarian cancer, we evaluated the efficacy of the CDK4/6 inhibitor Ribociclib alone, in combination with chemotherapy, and as maintenance therapy in several models of HGSOC. Ribociclib restricted cellular proliferation in multiple ovarian cancer cell lines. Restricted proliferation was associated with a pseudo-senescent cellular phenotype; Ribociclib-treated cells expressed markers of senescence, but could rapidly re-enter the cell cycle with discontinuation of therapy. Surprisingly, concurrent Ribociclib and cisplatin therapy followed by Ribociclib maintenance was synergistic. Evaluation of the cell cycle suggested that Ribociclib may also act at the G2/M check point via dephosphorylation of ATR and CHK1. Consistent with this mechanism, Ribociclib demonstrated clear activity in both platinum-resistant and platinum-sensitive tumor models in vivo. This work supports clinical trials using Ribociclib in combination with cisplatin and as a maintenance therapy in ovarian cancer.
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Affiliation(s)
- Mangala Iyengar
- University of Michigan, Department of Cellular and Molecular Biology, Ann Arbor, MI 48109, USA
- University of Michigan, Medical Scientist Training Program, Ann Arbor, MI 48109, USA
| | - Patrick O’Hayer
- University of Michigan, Department of Cellular and Molecular Biology, Ann Arbor, MI 48109, USA
- University of Michigan, Medical Scientist Training Program, Ann Arbor, MI 48109, USA
| | - Alex Cole
- University of Michigan, Division of Hematology and Oncology, Department of Internal Medicine, Ann Arbor, MI 48109, USA
| | - Tara Sebastian
- University of Michigan, School of Literature, Science and the Arts, Ann Arbor, MI 48109, USA
| | - Kun Yang
- University of Michigan, Division of Hematology and Oncology, Department of Internal Medicine, Ann Arbor, MI 48109, USA
| | - Lan Coffman
- University of Michigan, Division of Hematology and Oncology, Department of Internal Medicine, Ann Arbor, MI 48109, USA
| | - Ronald J. Buckanovich
- University of Michigan, Division of Hematology and Oncology, Department of Internal Medicine, Ann Arbor, MI 48109, USA
- Magee Women’s Research Institute, University of Pittsburgh, Department of Internal Medicine, Pittsburgh, PA 15213, USA
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Fujiwara Y, Tamura K, Kondo S, Tanabe Y, Iwasa S, Shimomura A, Kitano S, Ogasawara K, Turner PK, Mori J, Asou H, Chan EM, Yamamoto N. Phase 1 study of abemaciclib, an inhibitor of CDK 4 and 6, as a single agent for Japanese patients with advanced cancer. Cancer Chemother Pharmacol 2016; 78:281-8. [PMID: 27312735 DOI: 10.1007/s00280-016-3085-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/09/2016] [Indexed: 01/24/2023]
Abstract
PURPOSE To confirm the safety and tolerability, evaluate the pharmacokinetics (PK), and investigate the antitumor activity of abemaciclib in Japanese patients with advanced cancer. METHODS We conducted a non-randomized, single-arm, open-label, dose-escalation phase 1 study of abemaciclib administered orally every 12 h (Q12H) on a 28-day cycle at doses of 100 mg (Cohort 1, n = 3), 150 mg (Cohort 2, n = 3), or 200 mg [Cohort 3, n = 6, maximum tolerated dose (MTD)]. Dose escalation was based on the frequency of dose-limiting toxicity (DLT). MTD, as established in the previous phase 1 study in non-Japanese patients, was the highest dose level at which <33 % of patients experienced DLT. RESULTS Eleven of the 12 patients who received treatment with abemaciclib discontinued: 10 patients due to progressive disease, and 1 due to a DLT (Cohort 3, grade 2 nausea). Diarrhea, the most common treatment-emergent adverse event (AE), was managed supportively and did not require study treatment discontinuation. There were no drug-related serious AEs and no patients with corrected QT (QTc) > 480 ms or QTc change of >60 ms from baseline. The abemaciclib PK profile was characterized by slow absorption and high PK variability after single or repeated doses. Two patients, one with breast cancer and one with neuroendocrine tumor, experienced >30 % decrease in tumor size from baseline. CONCLUSIONS In Japanese patients with advanced cancer, single-agent abemaciclib has an acceptable safety profile and demonstrates antitumor activity at a dose of 200 mg Q12H. These findings support ongoing development of abemaciclib for diverse populations with advanced cancer.
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