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Pulat E, Topçul MR. Effects of combined use of ribociclib with PARP1 inhibitor on cell kinetics in breast cancer. Oncol Lett 2024; 27:243. [PMID: 38638847 PMCID: PMC11024784 DOI: 10.3892/ol.2024.14376] [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: 10/24/2023] [Accepted: 03/12/2024] [Indexed: 04/20/2024] Open
Abstract
In the present study, antiproliferative and anticancer effects of Valamor (VLM), which contains the active component ribociclib, and DPQ, a poly(ADP-ribose) polymerase 1 inhibitor, alone and in combination were evaluated in the MCF-7 and MDA-MB-231 breast cancer cell lines in vitro. VLM was applied at concentrations of 40, 80 and 160 µg/ml, and DPQ was used at concentrations of 3, 6 and 9 µg/ml. The proliferation rate, cell index obtained from the real-time cell analysis system, mitosis activity, bromodeoxyuridine cell proliferation and caspase activity parameters were determined. In conclusion, the results obtained from cell kinetics parameters demonstrated the anticancer and antiproliferative effects of the combination of VLM and DPQ on breast cancer cells.
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Affiliation(s)
- Ercan Pulat
- Department of Biology, Faculty of Science, Istanbul University, Istanbul 34134, Türkiye
| | - Mehmet R. Topçul
- Department of Biology, Faculty of Science, Istanbul University, Istanbul 34134, Türkiye
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Kulkarni A, Singh J. Predicting drug-drug interactions in breast cancer patients treated with CDK4/6 inhibitors and forward planning. Expert Opin Drug Metab Toxicol 2024; 20:225-233. [PMID: 38600865 DOI: 10.1080/17425255.2024.2341810] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/05/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Cyclin-dependent kinase (CDK) 4/6 inhibitors are cornerstones in the treatment of Hormone Receptor (HR) positive and Human Epidermal Growth factor (HER2) negative metastatic breast cancer. Given their widespread use in the metastatic setting and emerging use in the adjuvant setting, studying drug-drug interactions (DDI) of these medications is of utmost importance. AREAS COVERED This review provides key background information on the CDK4/6 inhibitors, palbociclib, ribociclib, and abemaciclib. We discuss drug-drug interactions including those with proton pump inhibitors as well as CYP3A substrates, inhibitors, and inducers. We describe the effect of these drugs on membrane transporters and their substrates as well as those drugs that increase risk of CDK4/6 toxicities. Finally, we explore future directions for strategies to minimize drug-drug interactions. EXPERT OPINION It is crucial to be mindful of medications that may interfere with drug absorption, such as proton pump inhibitors, as well as those that interfere with drug metabolism, such as CYP3A4 inhibitors and inducers. Additionally, special consideration should be given to populations at higher risk for polypharmacy, such as older patients with greater comorbidities. These interactions and patient characteristics should be considered when developing individual treatment plans with CDK4/6 inhibitors.
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Affiliation(s)
- Abha Kulkarni
- Department of Medicine, New York Presbyterian Weill Cornell, New York, NY USA
| | - Jasmeet Singh
- Department of Breast Medicine, Memorial Sloan Kettering Cancer Center, West Harrison, NY USA
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3
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Sozer Karadagli S, Gursoy P. Liver toxicity with ribociclib in a patient with metastatic hormone receptor positive postmenopausal breast cancer. J Oncol Pharm Pract 2024; 30:404-407. [PMID: 37899576 DOI: 10.1177/10781552231208390] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
INTRODUCTION In recent years, highly selective reversible CDK4/6 inhibitors have been combined with aromatase inhibitors for their efficacy and ease of application in the treatment of advanced stage of hormone-responsive breast cancers. Oral use of these drugs facilitates patient compliance. However, adverse drug reactions are reported due to these drugs, in the literature. Diverse adverse reactions such as skin reactions, liver toxicity, and vitiligo with ribociclib have been reported. CASE REPORT In this study, we present of liver toxicity due to the use of ribociclib in a case of advanced breast cancer with metastases. It is noteworthy that the patient did not have any other concomitant disease and did not take any other medication. MANAGEMENT AND OUTCOME After the 600 mg initial dose of ribociclib, neutropenia occurred at the beginning of the therapy, the dose was reduced to 400 mg, and liver enzymes started to rise in the second month of the therapy. In the fifth month of the intermittent treatment period, liver toxicity was grade 3. DISCUSSION Liver adverse reaction occurred due to ribociclib use in the patient who had no history of any other disease. The Naranjo algorithm score was evaluated as 9. Considering the excretion of ribociclib by sulfation, cysteine conjugation, and glucuronidation, which are phase II reactions, n-acetyl cysteine (NAC) treatment (600 mg/day) was started for the patient. NAC therapy is recommended to reduce elevated liver enzymes in the case. The patient's treatment has been continuing with palbociclib for 5 months. No increase in liver enzymes was observed.
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Affiliation(s)
- Sumru Sozer Karadagli
- Department of Pharmaceutical Toxicology, Ege University Faculty of Pharmacy, Izmir, Turkey
| | - Pınar Gursoy
- Tulay Aktas Oncology Hospital, Ege University School of Medicine, Izmir, Turkey
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Turcu-Stiolica A, Udristoiu I, Subtirelu MS, Gheorman V, Aldea M, Dumitrescu EA, Volovat SR, Median DM, Lungulescu CV. Digging in real-word electronic database for assessing CDK 4/6 inhibitors adherence in breast cancer patients from Romania. Front Pharmacol 2024; 15:1345482. [PMID: 38464732 PMCID: PMC10920324 DOI: 10.3389/fphar.2024.1345482] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction: It is imperative for patients to respect the prescribed treatments to achieve the anticipated clinical outcomes, including the outpatients receiving oral anti-cancer drugs such as selective cyclin-dependent kinase 4/6 inhibitors (CDK 4/6i). With the introduction of three CDK 4/6i drugs in the Romanian pharmaceutical market in 2018, our study aimed to evaluate medication adherence and the influencing factors among patients undergoing treatment with palbociclib, ribociclib, or abemaciclib for advanced or metastatic breast cancer. Methods: Medication adherence was assessed using the Proportion of Days Covered (PDC) method, and Spearman correlation analysis was conducted to explore the relationships between adherence, age, gender, and follow-up duration. Results: The study enrolled 330 breast cancer patients, with an average follow-up period of 14.6 ± 12.5 months for palbociclib, 10.6 ± 7.1 months for ribociclib, and 8.6 ± 6.4 months for abemaciclib-treated patients. A small proportion of patients demonstrated non-adherence: 12.8% for palbociclib, 14.6% for ribociclib, and 14.7% for abemaciclib. Among patients receiving palbociclib, there was no significant correlation between adherence, age (rho = 0.07, p = 0.35), or gender (rho = -0.144, p = 0.054). However, a significant correlation was found with the duration of follow-up (rho = -0.304, p < 0.0001). Similar results were observed for patients receiving ribociclib or abemaciclib. Most patients received combination therapy with letrozole (46%) and exemestane (13%) for palbociclib, letrozole (48%) and fulvestrant (19%) for ribociclib, and fulvestrant (39%) and letrozole (27%) for abemaciclib, Discussion: High adherence rates were observed among patients treated with CDK 4/6i drugs, with no significant differences noted among the three drugs in this class. However, the collected patient data was limited, lacking information on adverse reactions that could potentially lead to treatment discontinuation, as determined by the oncologist's decision not to prescribe. Consequently, a comprehensive understanding of all factors contributing to the low adherence levels is hindered.
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Affiliation(s)
- Adina Turcu-Stiolica
- Pharmacoeconomics Department, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Ion Udristoiu
- Psychiatry Department, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | | | - Victor Gheorman
- Psychiatry Department, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Madalina Aldea
- Psychiatry Department, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | | | - Simona Ruxandra Volovat
- Department of Medical Oncology, University of Medicine and Pharmacy Grigore T. Popa Iasi, Iasi, Romania
| | - Dragos Mircea Median
- Gynecologic Oncology Department, Filantropia Clinical Hospital Bucharest, Bucharest, Romania
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Sharaf B, Othman Z, Abu Faris H, Al-Bitar M, Al-Zoubi Q, Abu Laban D, Abu-Jaish H, Abdel-Razeq H. Cerebral venous sinus thrombosis in a patient treated with ribociclib for metastatic breast cancer. Case reports and literature review. SAGE Open Med Case Rep 2024; 12:2050313X241233190. [PMID: 38390439 PMCID: PMC10883115 DOI: 10.1177/2050313x241233190] [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: 09/26/2023] [Accepted: 01/30/2024] [Indexed: 02/24/2024] Open
Abstract
Breast cancer is the most diagnosed cancer among women worldwide. Cyclin dependent kinase 4/6 inhibitors (ribociclib, palbociclib, and abemaciclib) modulate endocrine resistance and are widely used treatment for patients with advanced-stage hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer. Reports of both venous and arterial thromboembolic events, as a complication of cyclin dependent kinase 4/6 inhibitors, are increasingly recognized, but none involved cerebral venous sinus. We herein report on a 44-year-old female patient who initially presented with an early-stage breast cancer treated with surgery, chemotherapy, radiation therapy and finished 5 years of tamoxifen uneventfully. Eight years after her initial diagnosis, she relapsed with a solitary brain lesion which was resected and treated with radiation therapy, and was then started on aromatase inhibitors. Few months later, she progressed with biopsy-proven cervical and mediastinal lymph node metastasis. She was then switched to fulvestrant and ribociclib; both were well-tolerated. However, few weeks later she presented with increasing headache and mild dizziness. Imaging studies showed right lateral sinus acute non-occlusive thrombosis with no parenchymal changes. Patient was anticoagulated with low molecular weight heparin and follow-up visits showed stable disease with no bleeding.
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Affiliation(s)
- Baha Sharaf
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Zeina Othman
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Hala Abu Faris
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Malak Al-Bitar
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Qasem Al-Zoubi
- Department of Radiology, King Hussein Cancer Center, Amman, Jordan
| | - Dima Abu Laban
- Department of Radiology, King Hussein Cancer Center, Amman, Jordan
| | - Hala Abu-Jaish
- School of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Hikmat Abdel-Razeq
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
- School of Medicine, The University of Jordan, Amman, Jordan
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Borroni RG, Bartolini M, Gaudio M, Jacobs F, Benvenuti C, Gerosa R, Tiberio P, Manara SAAM, Solferino A, Santoro A, De Sanctis R. Ribociclib-Induced Cutaneous Adverse Events in Metastatic HR+/HER2- Breast Cancer: Incidence, Multidisciplinary Management, and Prognostic Implication. Oncologist 2024:oyae004. [PMID: 38242689 DOI: 10.1093/oncolo/oyae004] [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: 08/04/2023] [Accepted: 12/04/2023] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Ribociclib is approved for hormone receptor positive (HR+), human epidermal growth factor receptor 2 negative (HER2-) advanced breast cancer (ABC) treatment, in combination with endocrine therapy. Hematological, hepatic, and cardiac adverse events (AEs) emerged from pivotal trials, but little is known about cutaneous adverse events (CAEs). PATIENTS AND METHODS We report data from a retrospective cohort study of all patients with HR+/HER2- ABC treated with ribociclib at Humanitas Cancer Center between June 2017 and December 2022. We recorded clinical-pathological data, the incidence, and treatment of ribociclib-related CAEs. These were evaluated according to the NCI-CTCAE v5.0 classification. Progression-free survival (PFS) was estimated by Kaplan-Meier method and the log-rank test was used to analyze differences between groups. RESULTS Thirteen of 91 patients (14.3%) experienced treatment-related CAEs (mean time to the occurrence: 3.9 months). The most frequent CAEs were eczematous dermatitis (53.8%) and maculo-papular reaction (15.4%). Itch was reported by all 13 patients. The grade was G3 in 8 cases, G2 in 4, and G1 in 1. An integrated approach based on ribociclib dose modulation and dermatological interventions (oral antihistamine, moisturized cream, topical, and/or systemic steroids) could prevent ribociclib discontinuation in most patients. At a median follow-up of 20 months, the median PFS was 13 months (range, 1-66) with a better PFS curves for patients experiencing CAEs (P = .04). CONCLUSION We mapped frequency and types of ribociclib-induced CAEs. An interdisciplinary management of CAEs incorporated into routine care may reduce the rate of drug discontinuation thus potentially contributing to better long-term outcomes.
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Affiliation(s)
- Riccardo Giovanni Borroni
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Dermatology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Michela Bartolini
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Mariangela Gaudio
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Flavia Jacobs
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Chiara Benvenuti
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Riccardo Gerosa
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Paola Tiberio
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | | | - Alessandra Solferino
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Armando Santoro
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
| | - Rita De Sanctis
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano (MI), Italy
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7
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Zhang C, Zhou F, Zou J, Fang Y, Liu Y, Li L, Hou J, Wang G, Wang H, Lai X, Xie L, Jiang J, Yang C, Huang Y, Chen Y, Zhang H, Li Y. Clinical considerations of CDK4/6 inhibitors in HER2 positive breast cancer. Front Oncol 2024; 13:1322078. [PMID: 38293701 PMCID: PMC10824891 DOI: 10.3389/fonc.2023.1322078] [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: 10/15/2023] [Accepted: 12/28/2023] [Indexed: 02/01/2024] Open
Abstract
Deregulation of cell cycles can result in a variety of cancers, including breast cancer (BC). In fact, abnormal regulation of cell cycle pathways is often observed in breast cancer, leading to malignant cell proliferation. CDK4/6 inhibitors (CDK4/6i) can block the G1 cell cycle through the cyclin D-cyclin dependent kinase 4/6-inhibitor of CDK4-retinoblastoma (cyclinD-CDK4/6-INK4-RB) pathway, thus blocking the proliferation of invasive cells, showing great therapeutic potential to inhibit the spread of BC. So far, three FDA-approved drugs have been shown to be effective in the management of advanced hormone receptor positive (HR+) BC: palbociclib, abemaciclib, and ribociclib. The combination strategy of CDK4/6i and endocrine therapy (ET) has become the standard therapeutic regimen and is increasingly applied to advanced BC patients. The present study aims to clarify whether CDK4/6i can also achieve a certain therapeutic effect on Human epidermal growth factor receptor 2 positive (HER2+) BC. Studies of CDK4/6i are not limited to patients with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced BC, but have also expanded to other types of BC. Several pre-clinical and clinical trials have demonstrated the potential of CDK4/6i in treating HER2+ BC. Therefore, this review summarizes the current knowledge and recent findings on the use of CDK4/6i in this type of BC, and provides ideas for the discovery of new treatment modalities.
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Affiliation(s)
- Cui Zhang
- Zunyi Medical University, Zunyi, China
| | - Fulin Zhou
- Maternal and Child Health Care Hospital of Guiyang City, Guiyang, China
| | - Jiali Zou
- Maternal and Child Health Care Hospital of Guiyang City, Guiyang, China
| | - Yanman Fang
- Maternal and Child Health Care Hospital of Guiyang City, Guiyang, China
| | - Yuncong Liu
- Department of Oncology, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Libo Li
- Department of Oncology, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Jing Hou
- Department of Breast Surgery, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Guanghui Wang
- Department of Breast Surgery, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Hua Wang
- Department of Breast Surgery, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Xiaolian Lai
- Department of Digestive, People’s Hospital of Songtao Miao Autonomous County, Tongren, China
| | - Lu Xie
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Jia Jiang
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Can Yang
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | | | | | - Hanqun Zhang
- Department of Oncology, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Yong Li
- Department of Oncology, Guizhou Provincial People’s Hospital, Guiyang, China
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Schmitz M, Kaltheuner IH, Anand K, Düster R, Moecking J, Monastyrskyi A, Duckett DR, Roush WR, Geyer M. The reversible inhibitor SR-4835 binds Cdk12/cyclin K in a noncanonical G-loop conformation. J Biol Chem 2024; 300:105501. [PMID: 38016516 PMCID: PMC10767194 DOI: 10.1016/j.jbc.2023.105501] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/23/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023] Open
Abstract
Inhibition of cyclin-dependent kinases (CDKs) has evolved as an emerging anticancer strategy. In addition to the cell cycle-regulating CDKs, the transcriptional kinases Cdk12 and Cdk13 have become the focus of interest as they mediate a variety of functions, including the transition from transcription initiation to elongation and termination, precursor mRNA splicing, and intronic polyadenylation. Here, we determine the crystal structure of the small molecular inhibitor SR-4835 bound to the Cdk12/cyclin K complex at 2.68 Å resolution. The compound's benzimidazole moiety is embedded in a unique hydrogen bond network mediated by the kinase hinge region with flanking hydroxy groups of the Y815 and D819 side chains. Whereas the SR-4835 head group targets the adenine-binding pocket, the kinase's glycine-rich loop is shifted down toward the activation loop. Additionally, the αC-helix adopts an inward conformation, and the phosphorylated T-loop threonine interacts with all three canonical arginines, a hallmark of CDK activation that is altered in Cdk12 and Cdk13. Dose-response inhibition measurements with recombinant CMGC kinases show that SR-4835 is highly specific for Cdk12 and Cdk13 following a 10-fold lower potency for Cdk10. Whereas other CDK-targeting compounds exhibit tighter binding affinities and higher potencies for kinase inhibition, SR-4835 can be considered a selective transcription elongation antagonist. Our results provide the basis for a rational improvement of SR-4835 toward Cdk12 inhibition and a gain in selectivity over other transcription regulating CDKs.
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Affiliation(s)
| | | | - Kanchan Anand
- Institute of Structural Biology, University of Bonn, Bonn, Germany
| | - Robert Düster
- Institute of Structural Biology, University of Bonn, Bonn, Germany
| | - Jonas Moecking
- Institute of Structural Biology, University of Bonn, Bonn, Germany
| | | | - Derek R Duckett
- Department of Drug Discovery, Moffitt Cancer Center, Tampa, Florida, USA
| | - William R Roush
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | - Matthias Geyer
- Institute of Structural Biology, University of Bonn, Bonn, Germany.
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Jhaveri K, O’Shaughnessy J, Fasching PA, Tolaney SM, Yardley DA, Sharma VK, Biswas C, Thuerigen A, Pathak P, Rugo HS. Matching-adjusted indirect comparison of PFS and OS comparing ribociclib plus letrozole versus palbociclib plus letrozole as first-line treatment of HR+/HER2- advanced breast cancer. Ther Adv Med Oncol 2023; 15:17588359231216095. [PMID: 38107828 PMCID: PMC10722948 DOI: 10.1177/17588359231216095] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/02/2023] [Indexed: 12/19/2023] Open
Abstract
Background Current standard-of-care first-line treatment of patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer (ABC) is cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) + endocrine therapy. In the MONALEESA-2 trial, first-line ribociclib + letrozole demonstrated statistically significant overall survival (OS) benefit versus placebo + letrozole in postmenopausal patients with HR+/HER2- ABC. In the PALOMA-2 trial, first-line palbociclib + letrozole did not show OS benefit versus placebo + letrozole in a similar patient population. Understanding OS outcomes in the respective trials is critical for treatment decisions; however, there are no head-to-head clinical trial data comparing ribociclib and palbociclib. Objectives To conduct a matching-adjusted indirect comparison (MAIC) to compare progression-free survival (PFS) and OS of first-line ribociclib + letrozole versus palbociclib + letrozole in postmenopausal patients with HR+/HER2- ABC. Design Letrozole-anchored MAIC using individual patient data from MONALEESA-2 and published summary data from PALOMA-2. Methods Using individual data, patients from MONALEESA-2 who matched inclusion criteria from PALOMA-2 were selected, and weighting was conducted to ensure baseline characteristics were similar to those in published aggregated data from PALOMA-2. The Bucher method was used to generate corresponding hazard ratios (HRs). Results The final effective sample size compared n = 150 (ribociclib) and n = 112 (placebo) MONALEESA-2 patients with n = 444 (palbociclib) and n = 222 (placebo) PALOMA-2 patients. After matching and weighting, patient characteristics were well balanced. MAIC analysis showed a numerical PFS benefit [HR, 0.80; 95% confidence interval (CI), 0.58-1.11; p = 0.187] and significant OS benefit (HR, 0.68; 95% CI, 0.48-0.96; p = 0.031) with ribociclib + letrozole versus palbociclib + letrozole. Conclusion Results of this cross-trial MAIC analysis showed a numerical PFS benefit and significantly greater OS benefit with first-line ribociclib + letrozole versus palbociclib + letrozole. These results support letrozole + ribociclib as the preferred first-line CDK4/6i for postmenopausal patients with HR+/HER2- ABC. Trial registration NCT01958021; https://www.clinicaltrials.gov/study/NCT01958021 (MONALEESA-2) and NCT01740427; https://clinicaltrials.gov/study/NCT01740427 (PALOMA-2).
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Affiliation(s)
- Komal Jhaveri
- Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - Joyce O’Shaughnessy
- Texas Oncology-Baylor University Medical Center and the US Oncology Research Network, Dallas, TX, USA
| | - Peter A. Fasching
- Comprehensive Cancer Center Erlangen–European Metropolitan Region of Nuremberg, University Hospital Erlangen, Erlangen, Germany
- Department of Gynecology and Obstetrics, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | | | - Denise A. Yardley
- Sarah Cannon Research Institute at Tennessee Oncology, Nashville, TN, USA
| | | | | | | | - Purnima Pathak
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | - Hope S. Rugo
- Department of Medicine, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
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10
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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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11
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Alshogran OY, Al-Shdefat R, Hailat M. Simple and rapid quantification of ribociclib in rat plasma by protein precipitation and LC-MS/MS: An application to pharmacokinetics of ribociclib nanoparticles in rats. J Mass Spectrom 2023; 58:e4984. [PMID: 37950646 DOI: 10.1002/jms.4984] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/13/2023]
Abstract
Ribociclib is a cyclin-dependent kinase (CDK4/6) inhibitor and is a standard of care for treating metastatic breast cancer. The drug has moderate oral bioavailability and exhibits permeability-controlled absorption. Novel formulations to enhance ribociclib pharmacokinetics are being developed and tested in rats. This requires developing analytical assays for quantifying ribociclib monitoring in rat plasma. We present a fully validated, sensitive, and simple LC-MS/MS method for measuring ribociclib in rat plasma. Ribociclib-D6 was utilized as an internal standard, and a simple protein precipitation procedure with acetonitrile was used in sample preparation. Excellent assay linearity was observed over a standard curve concentration of 1.008-1027.624 ng/mL. Acceptable intra- and inter-day accuracy and reproductivity were demonstrated for ribociclib quality controls (bias and CV% within ±15%). Complete extraction recovery of ribociclib was achieved, and a negligible matrix effect of analyte to internal standard ratio was observed. Ribociclib was stable at various conditions, including bench-top, freeze-thaw, and short-term stability. Overall, the presented method is simple, sensitive, accurate, and precise and was successfully applied to quantify ribociclib in plasma samples from a pharmacokinetic study of ribociclib suspension and nanoparticle formulation in rats.
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Affiliation(s)
- Osama Y Alshogran
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Ramadan Al-Shdefat
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Jadara University, Irbid, Jordan
| | - Mohammad Hailat
- College of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
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12
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Ji Y, Darstein C, Yang S, Quinlan M, Chakravartty A, Zarate JP, Chakraborty A, Ho YY. Quantitative Assessment of Ribociclib Exposure-Response Relationship to Justify Dose Regimen in Patients with Advanced Breast Cancer. J Clin Pharmacol 2023; 63:1359-1370. [PMID: 37464901 DOI: 10.1002/jcph.2310] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/08/2023] [Indexed: 07/20/2023]
Abstract
Ribociclib in combination with endocrine therapy (ET) is a globally approved treatment option for patients with hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC) and has demonstrated significantly improved overall survival (OS) in 3 phase 3 clinical trials. To justify the dose regimen and dose modification scheme for patients with ABC, the pharmacokinetic (PK), safety, and efficacy data of ribociclib were analyzed. The data of several phase 1-3 clinical studies were pooled and analyzed to characterize the relationship between exposure (dose or PK) and efficacy (progression-free survival (PFS), time to response, and OS) or safety (neutropenia and QT interval prolongation). The exposure-efficacy analysis showed no apparent relationship between ribociclib exposure and efficacy (PFS and OS), and efficacy analysis by dose reduction showed that patients with ABC continued to benefit from the treatment following dose reduction, supporting the starting dose of 600 mg as well as dose reductions to 400 and 200 mg. The exposure-safety analysis showed that neutropenia and QT prolongation are related to ribociclib exposure that can be effectively managed by individualized dose modification (dose reduction/interruption). Collective evidence from the exposure-response analyses for efficacy and safety support the use of ribociclib in combination with ET partners at the starting dose of 600 mg, and also the effectiveness of individualized dose reductions in managing safety, while maintaining efficacy, in patients with HR+/HER2- ABC. This analysis illustrates the utility of quantitative assessment in justifying dose selection and dose modification for oncology medicines.
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Affiliation(s)
- Yan Ji
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | | | - Shu Yang
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | | | | | | | | | - Yu-Yun Ho
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
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13
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Chang CM, Lam HYP. Mechanism of CDK4/6 Inhibitor Resistance in Hormone Receptor-positive Breast Cancer and Alternative Treatment Strategies. Anticancer Res 2023; 43:5283-5298. [PMID: 38030174 DOI: 10.21873/anticanres.16732] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Breast cancer (BC) is a common malignancy in women, with hormone receptor (HR)-positive subtype responsible for approximately 70% of cases. Currently, patients with metastatic HR-positive BC rely on endocrine therapy and cyclin-dependent kinase (CDK)-4/6 inhibitors for treatment. Currently, approved CDK4/6 inhibitors include palbociclib, ribociclib, and abemaciclib. However, clinical evidence of CDK-4/6 inhibitor resistance is emerging, suggesting that the gap in the knowledge of its resistance mechanism requires further investigation. This review discusses the mechanisms of CDK4/6 inhibitor resistance in BC, including both intrinsic and extrinsic mechanisms. We also discuss possible alternative strategies to overcome CDK4/6 inhibitor resistance in future clinical applications.
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Affiliation(s)
- Chun-Ming Chang
- Department of General Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan, R.O.C
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, R.O.C
| | - Ho Yin Pekkle Lam
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, R.O.C.;
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien, Taiwan, R.O.C
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14
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André F, Su F, Solovieff N, Hortobagyi G, Chia S, Neven P, Bardia A, Tripathy D, Lu YS, Lteif A, Taran T, Babbar N, Slamon D, Arteaga CL. Pooled ctDNA analysis of MONALEESA phase III advanced breast cancer trials. Ann Oncol 2023; 34:1003-1014. [PMID: 37673211 DOI: 10.1016/j.annonc.2023.08.011] [Citation(s) in RCA: 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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 08/04/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023] Open
Abstract
BACKGROUND The phase III MONALEESA trials tested the efficacy and safety of the cyclin-dependent kinase (CDK)4/6 inhibitor ribociclib with different endocrine therapy partners as first- or second-line treatment of hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer (ABC). Using the largest pooled biomarker dataset of the CDK4/6 inhibitor ribociclib in ABC to date, we identified potential biomarkers of response to ribociclib. PATIENTS AND METHODS Baseline circulating tumour DNA from patients in the MONALEESA trials was assessed using next-generation sequencing. An analysis of correlation between gene alteration status and progression-free survival (PFS) was carried out to identify potential biomarkers of response to ribociclib. RESULTS Multiple frequently altered genes were identified. Alterations in ERBB2, FAT3, FRS2, MDM2, SFRP1, and ZNF217 were associated with a greater PFS benefit with ribociclib versus placebo. Patients with high tumour mutational burden (TMB) and with ANO1, CDKN2A/2B/2C, and RB1 alterations exhibited decreased sensitivity to ribociclib versus placebo. CONCLUSIONS Although exploratory, these results provide insight into alterations associated with the improved response to ribociclib treatment and may inform treatment sequencing in patients with actionable alterations following progression on CDK4/6 inhibitors. Validation of potential biomarkers identified here and development of prospective trials testing their clinical utility are warranted. CLINICALTRIALS GOV IDENTIFIERS NCT01958021, NCT02422615, NCT02278120.
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Affiliation(s)
- F André
- Department of Medical Oncology and INSERM U981, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France.
| | - F Su
- Novartis Pharmaceuticals, East Hanover
| | - N Solovieff
- Novartis Institutes for BioMedical Research, Cambridge
| | - G Hortobagyi
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Chia
- British Columbia Cancer Agency, Vancouver, Canada
| | - P Neven
- Multidisciplinary Breast Centre, Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - A Bardia
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, USA
| | - D Tripathy
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Y-S Lu
- National Taiwan University Hospital, Taipei, Taiwan
| | - A Lteif
- Novartis Pharmaceuticals, East Hanover
| | - T Taran
- Novartis Pharma AG, Basel, Switzerland
| | - N Babbar
- Novartis Pharmaceuticals, East Hanover
| | - D Slamon
- David Geffen School of Medicine at UCLA, Los Angeles
| | - C L Arteaga
- UT Southwestern Simmons Comprehensive Cancer Center, Dallas, USA
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15
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Tang H, Yeo D, De Souza K, Ahmad O, Shafiq T, Ofor O, Anand A, Karim S, Khan S, Madhusudan S. Clinical Impact of CDK4/6 Inhibitors in De Novo or PR- or Very Elderly Post-Menopausal ER+/HER2- Advanced Breast Cancers. Cancers (Basel) 2023; 15:5164. [PMID: 37958338 PMCID: PMC10647609 DOI: 10.3390/cancers15215164] [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: 09/11/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The CDK4/6 inhibitors significantly increase progression-free survival (PFS) in ER+/HER2- advanced breast cancer patients. In clinical trials, overall survival (OS) improvement has been demonstrated for ribociclib and abemaciclib but not for palbociclib. We undertook a real-world evaluation of PFS and OS in 227 post-menopausal patients who received first-line CDK4/6 inhibitors. There is no significant difference in median PFS (27.5 months vs. 25.7 months, p = 0.3) or median OS (49.5 months vs. 50.2 months, p = 0.67) in patients who received either palbociclib or ribociclib, respectively. De novo disease is significantly associated with prolonged median PFS and median OS compared with recurrence disease (47.1 months vs. 20.3 months (p = 0.0002) and 77.4 months vs. 37.3 months (p = 0.0003), respectively). PR- tumours have significantly reduced median PFS and OS compared with PR+ disease (19.2 months vs. 38 months (p = 0.003) and 34.3 months vs. 62.6 months (p = 0.02), respectively). In the very elderly (>80 years), median PFS and OS are significantly shorter compared with patients who are 65 years or below (14.5 months vs. 30.2 months (p = 0.01), and 77.4 months vs. 29.6 months (p = 0.009), respectively) in the palbociclib group. Our data suggest that the benefit in the very elderly is limited, and PR+/de novo disease obtains the maximum survival benefit.
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Affiliation(s)
- Hiu Tang
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Daniel Yeo
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Karen De Souza
- Department of Oncology, University College London Hospitals NHS Foundation Trust, London NW1 2PG, UK
| | - Omar Ahmad
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Tahir Shafiq
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Okezie Ofor
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Anjana Anand
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Syed Karim
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Sarah Khan
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
| | - Srinivasan Madhusudan
- Department of Oncology, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, UK (S.K.)
- Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham NG7 3RD, UK
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16
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Cazzaniga ME, Ciaccio A, Danesi R, Duhoux FP, Girmenia C, Zaman K, Lindman H, Luppi F, Mavroudis D, Paris I, Olubukola A, Samreen A, Schem C, Singer C, Snegovoy A. Late onset toxicities associated with the use of CDK 4/6 inhibitors in hormone receptor positive (HR+), human epidermal growth factor receptor-2 negative (HER2-) metastatic breast cancer patients: a multidisciplinary, pan-EU position paper regarding their optimal management. The GIOCONDA project. Front Oncol 2023; 13:1247270. [PMID: 37954071 PMCID: PMC10639170 DOI: 10.3389/fonc.2023.1247270] [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: 06/25/2023] [Accepted: 09/26/2023] [Indexed: 11/14/2023] Open
Abstract
The personalization of therapies in breast cancer has favoured the introduction of new molecular-targeted therapies into clinical practice. Among them, cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors have acquired increasing importance, with the approval in recent years of palbociclib, ribociclib, and abemaciclib in combination with endocrine therapy. Currently, no guidelines are available to monitor and manage potential long-term toxicities associated with the use of these drugs. A multidisciplinary panel of European oncologists, was supported by a pharmacologist, a hematologist, a hepatologist and a pulmonologist to discuss the management of long-term toxicities, based on the literature review and their clinical experience. The panel provided detailed roadmaps to manage long-term toxicities associated with the use of CDK4/6 inhibitors in clinical practice. Knowing the frequency and characteristics of the toxicity profile associated with each CDK4/6 inhibitor is important in the decision-making process to match the right drug to the right patient.
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Affiliation(s)
- Marina Elena Cazzaniga
- Phase 1 Research Unit, IRCCS San Gerardo dei Tintori, Monza (MB), Italy
- School of Medicine and Surgery, Milano Bicocca University, Monza (MB), Italy
| | - Antonio Ciaccio
- School of Medicine and Surgery, Milano Bicocca University, Monza (MB), Italy
- Gastroenterologic Unit, IRCCS San Gerardo dei Tintori, Monza (MB), Italy
| | - Romano Danesi
- Department Experimental and Clinical Medicine, University of Pisa, Pisa, Italy
| | | | - Corrado Girmenia
- Department of Hematology, Oncology and Dermatology, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Roma, Italy
| | - Kalhil Zaman
- Breast Center, Department Of Oncology, Lausanne University Hospital CHUV, Lausanne, Switzerland
| | - Henrik Lindman
- Department Of Immunology, Genetics And Pathology, Uppsala University, Uppsala, Sweden
| | - Fabrizio Luppi
- School of Medicine and Surgery, Milano Bicocca University, Monza (MB), Italy
- Division Of Respiratory Diseases, Fondazione IRCCS San Gerardo Dei Tintori, Monza (MB), Italy
| | - Dimitrios Mavroudis
- Department Of Medical Oncology, University Hospital Of Heraklion, Crete, Greece
| | - Ida Paris
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Ayodele Olubukola
- University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
| | - Ahmed Samreen
- University Hospitals Of Leicester Osborne Building, Leicester Royal Infirmary, Leicester, United Kingdom
| | | | - Christian Singer
- Department Of Obstetrics & Gynecology Head, Center For Breast Health, Medical University of Vienna, Vienna, Austria
| | - Anton Snegovoy
- Department Of Oncology, University Of Medicine & Dentistry, Moscow, Russia
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17
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Horani M, Abdel-Razeq H. Treatment options for patients with hormone receptor-positive, HER2-negative advanced-stage breast cancer: maintaining cyclin-dependent kinase 4/6 inhibitors beyond progression. Front Oncol 2023; 13:1272602. [PMID: 37860199 PMCID: PMC10582979 DOI: 10.3389/fonc.2023.1272602] [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: 08/04/2023] [Accepted: 09/15/2023] [Indexed: 10/21/2023] Open
Abstract
Breast cancer is the most commonly diagnosed cancer in women worldwide. Over the past decade, the treatment paradigm for patients with metastatic breast cancer (MBC) has taken an important shift towards better survival and improved quality of life (QOL), especially for those with hormone receptor (HR)-positive diseases which represent the majority of breast cancer subtypes. The introduction of cyclin-dependent kinase 4/6 (CDK4/6) inhibitors in the upfront therapy of such patients has resulted in dramatic improvement in progression-free survival (PFS) and overall survival (OS), too. However, almost all patients would, sooner or later, develop disease progression and necessitate transition to different lines of treatment that may include chemotherapy. The idea of maintaining CDK4/6 inhibitors beyond disease progression seems attractive, as this approach has the potential to improve outcome in this setting despite the fact that the true benefit, in terms of survival, might not carry the same weight as it initially does. Researchers have been investigating potential mechanisms of resistance and identify possible biological markers for response after disease progression. Much of the available data is retrospective; however, few randomized clinical trials were recently published and few more are ongoing, addressing this point. In this paper, we intend to review the available published studies investigating the potential role for keeping CDK4/6 inhibitors in play beyond disease progression.
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Affiliation(s)
- Malek Horani
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Hikmat Abdel-Razeq
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
- School of Medicine, the University of Jordan, Amman, Jordan
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18
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Collada Sánchez VL, Álvarez Criado J, Martinez Martin V, Zamora Auñon P, Espinosa Arranz E, Mayor Ibarguren A, Nacher Jimenez I, Herrero Ambrosio A. Subacute cutaneous lupus erythematosus following ribociclib therapy for metastatic breast cancer. J Oncol Pharm Pract 2023; 29:1793-1796. [PMID: 37455486 DOI: 10.1177/10781552231185855] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
INTRODUCTION Drug-induced subacute cutaneous lupus erythematosus (DI-SCLE) has been associated with drugs with different mechanisms of action, including anti-hypertensives, tumour necrosis factor-α inhibitors and even some chemotherapy medicines. In the last years, a few reports have been described in patients treated with cyclin-dependent kinase (CDK) 4/6 inhibitors, palbociclib and abemaciclib. CASE REPORT Here, we describe a case of DI-SCLE in association with ribociclib and exemestane in a woman diagnosed with metastatic breast cancer. MANAGEMENT AND OUTCOME Topical mometasone was prescribed for two weeks with complete resolution of lesions, also abemaciclib was substituted for ribociclib, and the patient had stable disease with no relapse of DI-SCLE. DISCUSSION To our knowledge, this is the first report of ribociclib-induced SCLE but based on the DI-SCLE reported cases associated others CDK4/6 inhibitors, the role of this family of drugs in dermatopathology must be further investigated.
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19
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Martins V, Jesus M, Pereira L, Monteiro C, Duarte AP, Morgado M. Hematological Events Potentially Associated with CDK4/6 Inhibitors: An Analysis from the European Spontaneous Adverse Event Reporting System. Pharmaceuticals (Basel) 2023; 16:1340. [PMID: 37895811 PMCID: PMC10610381 DOI: 10.3390/ph16101340] [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: 07/24/2023] [Revised: 09/12/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors are a recent targeted therapy approved for patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2 negative (HER2-) advanced breast cancer. Abemaciclib, palbociclib and ribociclib demonstrated great efficacy and safety during clinical studies. However, differences in their adverse-event profiles have been observed. This work aims to describe the suspected adverse drug reactions (ADRs), such as leukopenia and thrombocytopenia, reported for each CDK4/6 inhibitor in the EudraVigilance (EV) database. Data on individual case safety reports (ICSRs) were obtained by accessing the European spontaneous reporting system via the EV website. Information on concomitant drug therapy, including fulvestrant, letrozole, anastrozole and exemestane, was also analyzed. A total of 1611 ICSRs were collected from the EV database. Most reports of palbociclib and ribociclib were classified as serious cases for both suspected leukopenia and thrombocytopenia ADRs. However, most patients had their leukopenia and thrombocytopenia recovered/resolved. On the contrary, reports of abemaciclib were mostly characterized as non-serious cases. Abemaciclib and palbociclib were often combined with fulvestrant, while ribociclib was generally associated with letrozole. Pharmacovigilance studies are crucial for the early identification of potential ADRs and to better differentiate the toxicity profile of the different CDK4/6 inhibitors, particularly in a real-world setting.
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Affiliation(s)
- Vera Martins
- Health Sciences Faculty, University of Beira Interior (FCS-UBI), 6200-506 Covilhã, Portugal; (V.M.); (M.J.); (C.M.); (A.P.D.)
| | - Mafalda Jesus
- Health Sciences Faculty, University of Beira Interior (FCS-UBI), 6200-506 Covilhã, Portugal; (V.M.); (M.J.); (C.M.); (A.P.D.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
| | - Luísa Pereira
- CMA-UBI, Centre of Mathematics and Applications, University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal;
| | - Cristina Monteiro
- Health Sciences Faculty, University of Beira Interior (FCS-UBI), 6200-506 Covilhã, Portugal; (V.M.); (M.J.); (C.M.); (A.P.D.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- UFBI—Pharmacovigilance Unit of Beira Interior, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Ana Paula Duarte
- Health Sciences Faculty, University of Beira Interior (FCS-UBI), 6200-506 Covilhã, Portugal; (V.M.); (M.J.); (C.M.); (A.P.D.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- UFBI—Pharmacovigilance Unit of Beira Interior, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Manuel Morgado
- Health Sciences Faculty, University of Beira Interior (FCS-UBI), 6200-506 Covilhã, Portugal; (V.M.); (M.J.); (C.M.); (A.P.D.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- Pharmaceutical Services, University Hospital Center of Cova da Beira, 6200-251 Covilhã, Portugal
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20
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Stanciu IM, Parosanu AI, Nitipir C. An Overview of the Safety Profile and Clinical Impact of CDK4/6 Inhibitors in Breast Cancer-A Systematic Review of Randomized Phase II and III Clinical Trials. Biomolecules 2023; 13:1422. [PMID: 37759823 PMCID: PMC10526227 DOI: 10.3390/biom13091422] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6is) have transformed the treatment of hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2-) breast cancer over the last decade. These inhibitors are currently established as first- and second-line systemic treatment choices for both endocrine-sensitive and -resistant breast cancer populations alongside endocrine therapy (ET) or monotherapy. Data on targeted therapy continue to mature, and the number of publications has been constantly rising. Although these drugs have been demonstrated to prolong overall survival (as well as progression-free survival (PFS) in breast cancer patients), changing the paradigm of all current knowledge, they also cause important adverse events (AEs). This review provides the latest summary and update on the safety profile of the three CDK4/6 inhibitors, as it appears from all major phase II and III randomized clinical trials regarding palbociclib, ribociclib, and abemaciclib, including the most relevant 15 clinical trials.
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Affiliation(s)
- Ioana-Miruna Stanciu
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (I.-M.S.)
- Department of Medical Oncology, Elias University Emergency Hospital, 011461 Bucharest, Romania
| | - Andreea Ioana Parosanu
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (I.-M.S.)
- Department of Medical Oncology, Elias University Emergency Hospital, 011461 Bucharest, Romania
| | - Cornelia Nitipir
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (I.-M.S.)
- Department of Medical Oncology, Elias University Emergency Hospital, 011461 Bucharest, Romania
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21
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Bayram D, Aktürk Esen S, Uçar G, Köş FT. Toxic hepatitis in metastatic breast cancer patient using ribociclib and denosumab. J Oncol Pharm Pract 2023; 29:1494-1497. [PMID: 37170613 DOI: 10.1177/10781552231174593] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
INTRODUCTION Hepatotoxicity is observed due to cyclin-dependent kinase (CDK4/6) inhibitors used to treat hormone receptor-positive metastatic breast cancer. However, it should not be ignored that denosumab may be hepatotoxic, although it is rare. CASE REPORT A 73-year-old female patient with breast cancer with axillary lymph node, adrenal gland and bone metastases was started on ribociclib letrozole and denosumab treatment. Ribociclib treatment was discontinued due to grade 4 hepatotoxicity during treatment, but liver function tests did not decrease. After discontinuation of denosumab treatment, alanine aminotransferase and aspartate aminotransferase values regressed to baseline values. MANAGEMENT AND OUTCOME Despite the discontinuation of ribociclib treatment, other causes of liver toxicity were investigated due to persistence of hepatic transaminases and elevation. Autoimmune hepatitis markers were negative. Hepatobiliary USG did not reveal any pathological findings except hepatosteatosis. Liver biopsy was performed to determine the etiology. Pathology result was compatible with acute hepatocellular damage (in favor of toxic hepatitis). A decrease in liver values was detected after discontinuation of denosumab treatment. DISCUSSION Although cases with improvement in liver enzymes have been reported after discontinuation of ribociclib, no improvement in hepatotoxicity was observed in our case. Since the liver biopsy was toxic hepatitis, it was thought that other drugs used by the patient might cause this toxicity, and a significant decrease was observed in liver values after discontinuation of denosumab. Denosumab-induced liver toxicity is very rare, and there are only a limited number of cases in the literature.
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Affiliation(s)
- Doğan Bayram
- Department of Medical Oncology, Ankara Cıty Hospital, Cankaya, Turkey
| | - Selin Aktürk Esen
- Department of Medical Oncology, Ankara Cıty Hospital, Cankaya, Turkey
| | - Gökhan Uçar
- Department of Medical Oncology, Ankara Cıty Hospital, Cankaya, Turkey
| | - Fahriye Tuğba Köş
- Department of Medical Oncology, Ankara Cıty Hospital, Cankaya, Turkey
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Ünsal O, Özet A. Ribociclib-induced pulmonary infiltrates in a patient with breast cancer. J Oncol Pharm Pract 2023; 29:1537-1540. [PMID: 37524106 DOI: 10.1177/10781552231192005] [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] [Indexed: 08/02/2023]
Abstract
INTRODUCTION Breast cancer is the most common cancer in women worldwide. One of the treatment choices used in hormone receptor positive and HER2 expression negative metastatic breast cancer is cyclin dependent kinase 4/6 (CDK) inhibitors. There are differences between the effects and adverse events of all CDK4/6 inhibitors. In this report, we describe a 48-year-old female patient with breast cancer who developed pulmonary infiltrates secondary to drug in the second year of follow-up with Ribociclib therapy. CASE REPORT The patient who used ribociclib for metastatic breast cancer was admitted to hospital for routine controls. The patient, in the eighth month of ribociclib treatment, had no active complaints. In the patient's imaging, pulmonary infiltrates were detected in the lower lobe of the right lung. MANAGEMENT AND OUTCOME The drug was continued in the patient who was asymptomatic and had no infectious signs. Pneumonitis, interstitial lung disease, tuberculosis, COVID-19 and other viral agents were excluded in the patient. A minimal increase in pulmonary infiltrates was observed in the follow-up. However, the patient who does not have any complaints is currently continuing ribociclib at 600 mg/day. DISCUSSION The pulmonary infiltrates that developed in the patient increased with continued use of ribociclib, suggesting that this was due to ribociclib. The Naranjo Adverse Drug Reaction Probability Scale also indicates probable relationship.
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Affiliation(s)
- Oktay Ünsal
- Department of Medical Oncology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Ahmet Özet
- Department of Medical Oncology, Gazi University Faculty of Medicine, Ankara, Turkey
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Kapagan T, Bulut N, Demirer S, Erdem GU. Ribociclib-induced visual hallucination in a patient with metastatic breast cancer. J Oncol Pharm Pract 2023; 29:1529-1532. [PMID: 37306182 DOI: 10.1177/10781552231180463] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Cyclin-dependent kinase (CDK) 4/6 inhibitors are widely used in combination with aromatase inhibitors or fulvestrant for the treatment of locally advanced or metastatic hormone receptor-positive (HR+), human epidermal growth factor 2-negative (HER2-) breast cancer. Hematological toxicities (e.g. neutropenia, thrombocytopenia, anemia, lymphopenia, or febrile neutropenia), infections, decreased appetite, exhaustion, headache, dizziness, cough, nausea, vomiting, diarrhea, alopecia, rash, increased alanine aminotransferase and aspartate aminotransferase levels, and QT interval prolongation are frequent side effects associated with the use of CDK 4/6 inhibitors. However, to our knowledge, no case of hallucination associated with CDK 4/6 inhibitor use has been described in the English-language literature. CASE REPORT We report a case of a 72-year-old woman with metastatic breast cancer who developed visual hallucinations after receiving ribociclib, a CDK 4/6 inhibitor, and letrozole for 3 days. Cranial imaging and blood tests did not reveal the cause of the hallucinations. MANAGEMENT AND OUTCOME The visual hallucinations completely resolved within 4 days after the ribociclib treatment was terminated. The patient received only letrozole for 2 weeks, and ribociclib treatment was restarted 2 weeks later. Visual hallucinations recurred on the third day of treatment, and ribociclib treatment was discontinued again. The patient recovered completely from visual hallucinations 4 days after discontinuation. Subsequently, treatment was continued with letrozole and palbociclib, another CDK 4/6 inhibitor. Hallucinations did not recur during follow-up. DISCUSSION To our knowledge, this is the first reported case of hallucinations caused by ribociclib; notably, it shows that symptoms may develop in the early stage of treatment.
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Affiliation(s)
- Tanju Kapagan
- Department of Internal Medicine, Division of Medical Oncology, Başakşehir Çam and Sakura City Hospıtal, Istanbul, Türkiye
| | - Nilufer Bulut
- Department of Internal Medicine, Division of Medical Oncology, Başakşehir Çam and Sakura City Hospıtal, Istanbul, Türkiye
| | - Serhat Demirer
- Department of Internal Medicine, Division of Medical Oncology, Başakşehir Çam and Sakura City Hospıtal, Istanbul, Türkiye
| | - Gokmen Umut Erdem
- Department of Internal Medicine, Division of Medical Oncology, Başakşehir Çam and Sakura City Hospıtal, Istanbul, Türkiye
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Jhan JY, Wang WE, Chu SC, Cheng CH, Chang CH. Case Report: Ribociclib-induced phototoxicity presented as dyschromia with subsequent bullae formation. Front Oncol 2023; 13:1184738. [PMID: 37692847 PMCID: PMC10484504 DOI: 10.3389/fonc.2023.1184738] [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: 03/12/2023] [Accepted: 08/03/2023] [Indexed: 09/12/2023] Open
Abstract
Ribociclib, a cyclin-dependent kinase 4/6 inhibitor, is a novel targeted therapy for advanced-stage breast cancer. Although ribociclib-induced cutaneous side effects have been previously noted, they have not been well documented. Herein, we present a case of ribociclib-induced phototoxicity, which manifested as dyschromia over sun-exposed forearms and neck initially and as bullae formation subsequently. A 71-year-old woman with metastatic breast cancer developed dyschromia after daily treatment with ribociclib (600 mg) for 7 months. Skin biopsy of the pigmented lesion revealed interface dermatitis with melanin incontinence and dyskeratotic cells and ballooning keratinocytes with loss of melanocytes in the basal layer. Further, clefting at the basal layer of epidermis was noted in a more hyperpigmented field. Fontana-Masson staining revealed melanophages in the dermis. Human Melanoma Black-45 staining revealed decreased melanocyte numbers in the epidermis above the cleft. Immunohistochemical analyses revealed activated CD1a+ epidermal Langerhans cells and infiltrating CD4+ and CD8+ T cells in the epidermis and dermis, thereby indicating type IV hypersensitivity that was associated with damage to keratinocytes and melanocytes. To prevent progression of bullous dermatitis, we advised the patient to discontinue ribociclib and prescribed oral and topical prednisolone. Due to the risk of phototoxicity, we educated the patient on sun-protection strategies. The patient's skin lesions subsided during the 2 months of treatment. Phototoxicity with dyschromia is a rare but significant ribociclib-induced cutaneous side effect. Early diagnosis, rapid ribociclib withdrawal, protection from sunlight, and prompt treatment are critical for preventing subsequent severe bullous dermatosis.
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Affiliation(s)
- Jyun-Yan Jhan
- Skin Institute, Department of Dermatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Wei-En Wang
- Skin Institute, Department of Dermatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Sung-Chao Chu
- Department of Hematology-Oncology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Chiu-Hsuan Cheng
- Department of Pathology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Chung-Hsing Chang
- Skin Institute, Department of Dermatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Doctoral Degree Program in Translational Medicine, Tzu Chi University and Academia Sinica, Taipei, Taiwan
- Institute of Medical Sciences, College of Medicine, Tzu Chi University, Hualien, Taiwan
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Schlam I, Giordano A, Tolaney SM. Interstitial lung disease and CDK4/6 inhibitors in the treatment of breast cancer. Expert Opin Drug Saf 2023; 22:1149-1156. [PMID: 37994878 DOI: 10.1080/14740338.2023.2288147] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/22/2023] [Indexed: 11/24/2023]
Abstract
INTRODUCTION CDK4/6 inhibitors have changed the treatment paradigm of many patients living with metastatic and early-stage high-risk hormone receptor (HR)-positive breast cancer. Even though patients and clinicians are aware and learning how to manage common adverse events, such as bone marrow suppression and gastrointestinal toxicities, there are less common and potentially severe adverse events, such as interstitial lung disease (ILD), that require special consideration. AREAS COVERED In this narrative review, we discuss the incidence, mechanism, and treatment of CDK4/6 inhibitor associated ILD. EXPERT OPINION CDK4/6 inhibitors in combination with endocrine therapy (ET) are standard treatment for HR-positive, HER2-negative metastatic breast cancer and for selected patients with early stage HR-positive breast cancer. Common toxicities of these medications are often controlled with dose reductions, dose interruptions, and/or prophylactic medications, such as antidiarrheals. However, there are a small subset of patients at risk for less common and potentially severe toxicities, such as ILD. Individualized risk should be considered, including underlying lung disease, thrombosis risk and drug-drug interactions, in order to counsel patients about the risk of ILD.
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Affiliation(s)
- Ilana Schlam
- Department of Hematology and Oncology, Tufts Medical Center, Boston, MA, USA
| | - Antonio Giordano
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sara M Tolaney
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
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Ehrenfeld M, Segeth F, Mantwill K, Brockhaus C, Zhao Y, Ploner C, Kolk A, Gschwend JE, Nawroth R, Holm PS. Targeting Cell Cycle Facilitates E1A-Independent Adenoviral Replication. J Virol 2023; 97:e0037023. [PMID: 37219458 PMCID: PMC10308897 DOI: 10.1128/jvi.00370-23] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/01/2023] [Indexed: 05/24/2023] Open
Abstract
DNA replication of E1-deleted first-generation adenoviruses (AdV) in cultured cancer cells has been reported repeatedly and it was suggested that certain cellular proteins could functionally compensate for E1A, leading to the expression of the early region 2 (E2)-encoded proteins and subsequently virus replication. Referring to this, the observation was named E1A-like activity. In this study, we investigated different cell cycle inhibitors with respect to their ability to increase viral DNA replication of dl70-3, an E1-deleted adenovirus. Our analyses of this issue revealed that in particular inhibition of cyclin-dependent kinases 4/6 (CDK4/6i) increased E1-independent adenovirus E2-expression and viral DNA replication. Detailed analysis of the E2-expression in dl70-3 infected cells by RT-qPCR showed that the increase in E2-expression originated from the E2-early promoter. Mutations of the two E2F-binding sites in the E2-early promoter (pE2early-LucM) caused a significant reduction in E2-early promoter activity in trans-activation assays. Accordingly, mutations of the E2F-binding sites in the E2-early promoter in a virus named dl70-3/E2Fm completely abolished CDK4/6i induced viral DNA replication. Thus, our data show that E2F-binding sites in the E2-early promoter are crucial for E1A independent adenoviral DNA replication of E1-deleted vectors in cancer cells. IMPORTANCE E1-deleted AdV vectors are considered replication deficient and are important tools for the study of virus biology, gene therapy, and large-scale vaccine development. However, deletion of the E1 genes does not completely abolish viral DNA replication in cancer cells. Here, we report, that the two E2F-binding sites in the adenoviral E2-early promoter contribute substantially to the so-called E1A-like activity in tumor cells. With this finding, on the one hand, the safety profile of viral vaccine vectors can be increased and, on the other hand, the oncolytic property for cancer therapy might be improved through targeted manipulation of the host cell.
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Affiliation(s)
- Maximilian Ehrenfeld
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Felicia Segeth
- Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria
- Department of Molecular Biology, Leopold-Franzens-Universität Innsbruck, Austria
| | - Klaus Mantwill
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Corinna Brockhaus
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Yuling Zhao
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Christian Ploner
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Andreas Kolk
- Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Jürgen E. Gschwend
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Roman Nawroth
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Per Sonne Holm
- Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria
- XVir Therapeutics GmbH, Munich, Germany
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Al-Shdefat R, Hailat M, Alshogran OY, Abu Dayyih W, Gardouh A, Al Meanazel O. Ribociclib Hybrid Lipid-Polymer Nanoparticle Preparation and Characterization for Cancer Treatment. Polymers (Basel) 2023; 15:2844. [PMID: 37447489 DOI: 10.3390/polym15132844] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Ribociclib is a newly approved orally administered drug for breast cancer. This study aimed to prepare, characterize, and evaluate hybrid lipid-polymer nanoparticles (PLNs) of ribociclib to enhance its in vitro dissolution rate, pharmacokinetics, and anticancer efficacy. Ribociclib-loaded PLNs were prepared by solvent evaporation using the Box-Behnken design to optimize formulation variables. Particle size, entrapment efficiency, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), in vitro release cytotoxicity, molecular modeling, and pharmacokinetic studies were examined. The ribociclib-loaded PLN (formula 1, F1) was optimized in terms of particle size (266.9 ± 4.61 nm) and encapsulation efficiency (59.1 ± 2.57 mg/mL). DSC and thermogravimetric characterization showed the absence of a crystalline structure in the prepared PLNs, confirmed by FTIR, and showed no interactions between the components and the drug. AFM showed well-dispersed heterogeneously shaped nanoparticles. The in vitro release profile exhibited significant results for the optimized formula, reaching 100% at 600 and 90 min at pH 6.8 and 1.2, respectively. The low IC50 obtained by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay suggests that optimized PLN might serve as an effective delivery vehicle for cancer treatment, especially breast and lung cancer. Molecular modeling revealed several hydrogen bonds. A pharmacokinetic study in rats showed that the ribociclib formula had a 6.5-fold increase in maximum concentration (Cmax) and a 5.6-fold increase in area under the curve (AUC). Regarding the everted intestinal sac absorption, formula 1 increased ribociclib penetration relative to the physical combination and pure medication. In conclusion, optimized PLNs with enhanced physicochemical and cytotoxic properties and improved pharmacokinetic parameters were successfully prepared.
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Affiliation(s)
- Ramadan Al-Shdefat
- Department of Pharmacy, Faculty of Pharmacy, Jadara University, Irbid 21110, Jordan
| | - Mohammad Hailat
- College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Osama Y Alshogran
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Wael Abu Dayyih
- Faculty of Pharmacy, Mutah University, Al-Karak 61710, Jordan
| | - Ahmed Gardouh
- Department of Pharmacy, Faculty of Pharmacy, Jadara University, Irbid 21110, Jordan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Osaid Al Meanazel
- Michael Sayegh Faculty of Pharmacy, Aqaba University of Technology, Aqaba 77110, Jordan
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Zeng N, Han J, Liu Z, He J, Tian K, Chen N. CDK4/6 Inhibitors in the First-Line Treatment of Postmenopausal Women with HR+/HER2- Advanced or Metastatic Breast Cancer: An Updated Network Meta-Analysis and Cost-Effectiveness Analysis. Cancers (Basel) 2023; 15:3386. [PMID: 37444496 DOI: 10.3390/cancers15133386] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/08/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
(1) Background: This study aimed to conduct a NMA and CEA combined study to compare the effectiveness and cost-effectiveness of different CDK4/6 inhibitors (Abem, Palbo, and Ribo) plus NSAI with placebo plus NSAI in the first-line treatment of postmenopausal women with HR+/HER2- ABC from the perspective of payers in China. (2) Methods: Studies which evaluated CDK4/6 inhibitors plus NSAI for HR+/HER2- ABC were searched. A Bayesian NMA was carried out and the main outcomes were the hazard ratios (HRs) of overall survival (OS) and progression-free survival (PFS). The costs and efficacy of first-line therapies for HR+/HER2- ABC were evaluated using the Markov model. The main outcomes in the CEA were incremental cost-utility ratios (ICURs), incremental monetary benefit (INMB), and incremental net-health benefit (INHB). The robustness of the model was assessed by one-way, three-way, and probabilistic sensitivity analyses. Then, we further simulated the impact of different prices of CDK4/6 inhibitors on the results. (3) Results: Seven studies involving 5347 patients were included in the NMA. The three first-line CDK4/6 inhibitors plus NSAI groups provided significant PFS and OS superiority to NSAI alone. Abem + NSAI represented a significant statistical advantage onPFS (HR 0.74, 95% CI 0.61-0.90, p = 0.009) and indicated a trend of being the best OS benefit compared to the placebo + NSAI group (HR 0.89, 95% CI 0.72-1.08). The Abem + NSAI, Palbo + NSAI, and Ribo + NSAI groups resulted in additional costs of $12,602, $20,391, and $81,258, with additional effects of 0.38, 0.31, and 0.30 QALYs, respectively, leading to an ICUR of $33,163/QALY, $65,777/QALY, and $270,860/QALY. Additional pairwise comparisons showed that Abem + NSAI was the only cost-effective option in three CDK4/6 inhibitors plus NSAI groups at a willingness-to-pay (WTP) of $38,029/QALY. The sensitivity analyses showed that the proportion of receiving subsequent CDK4/6 inhibitors and the cost of Abem significantly influenced the results of Abem + NSAI compared with placebo + NSAI. (4) Conclusion: From the perspective of Chinese payers, Abem + NSAI was a cost-effective treatment option compared with placebo + NSAI at the WTP of $38,029/QALY, since only the ICUR of $33,163/QALY of Abem + NSAI was lower than the WTP of $38,029/QALY in China (2022). The Palbo + NSAI and Ribo + NSAI groups were not cost-effective unless drug prices were adjusted to 50% or 10% of current prices ($320.67 per cycle or $264.60 per cycle). (5) Others: We have prospectively registered the study with the PROSPERO, and the PROSPERO registration number is CRD42023399342.
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Affiliation(s)
- Ni Zeng
- Department of Head and Neck Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiaqi Han
- Department of Head and Neck Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zijian Liu
- Department of Head and Neck Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jinlan He
- Department of Head and Neck Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kun Tian
- Department of Andrology, Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu 610041, China
| | - Nianyong Chen
- Department of Head and Neck Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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Caliskan Yildirim E, Atag E, Coban E, Umit Unal O, Celebi A, Keser M, Uzun M, Keskinkilic M, Tanrikulu Simsek E, Sari M, Yavuzsen T. The effect of low HER2 expression on treatment outcomes in metastatic hormone receptor positive breast cancer patients treated with a combination of a CDK4/6 inhibitor and endocrine therapy: A multicentric retrospective study. Breast 2023; 70:56-62. [PMID: 37343321 PMCID: PMC10382953 DOI: 10.1016/j.breast.2023.06.006] [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: 05/09/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND CDK4/6 inhibitors combined with endocrine therapy have significantly improved treatment outcomes for metastatic hormone receptor-positive (HR+) breast cancer patients. However, the impact of low HER2 expression on treatment response and progression-free survival (PFS) remains unclear. METHODS This multicenter retrospective study included 204 HR+ breast cancer patients treated with a combination of CDK4/6 inhibitor and endocrine therapy. HER2-zero disease was detected in 138 (68%) and HER2-low disease in 66 (32%) patients. Treatment-related characteristics and clinical outcomes were analyzed, with a median follow-up of 22 months. RESULTS The objective response rate (ORR) was 72.7% in the HER2 low group and 66.6% in the HER2 zero group (p = 0.54). Median PFS was not significantly different between the HER2-low and HER2 zero groups (19 months vs.18 months, p = 0.89), although there was a trend toward longer PFS in the HER2-low group for first-line treatment (24 months progression-free survival rate 63% vs 49%). In recurrent disease, the median PFS was 25 months in the HER2-low group and 12 months in the HER2-zero group (p = 0.08), while in de novo metastatic disease, the median PFS was 18 months in the HER2-low group and 27 months in the HER2-zero group (p = 0.16). The order of CDK4/6 inhibitor use and the presence of visceral metastasis were identified as independent variables affecting PFS. CONCLUSION Low HER2 expression did not significantly impact treatment response or PFS in HR+ breast cancer patients treated with a CDK4/6 inhibitor and endocrine therapy. Because of the conflicting results in the literature, further prospective studies are needed to evaluate the clinical significance of HER2 expression in HR+ breast cancer.
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Affiliation(s)
- Eda Caliskan Yildirim
- Dokuz Eylul University, Department of Internal Medicine, Division of Medical Oncology, Izmir, Turkey.
| | - Elif Atag
- Dokuz Eylul University, Department of Internal Medicine, Division of Medical Oncology, Izmir, Turkey
| | - Ezgi Coban
- Haydarpasa Numune Training and Research Hospital, Department of Medical Oncology, Istanbul, Turkey
| | - Olcun Umit Unal
- Health Sciences University Izmir Faculty of Medicine, Department of Internal Medicine, Izmir, Turkey
| | - Abdussamet Celebi
- Marmara University Pendik Training and Research Hospital, Department of Medical Oncology, Istanbul, Turkey
| | - Murat Keser
- Health Sciences University Tepecik Training and Research Hospital, Department of Medical Oncology, Izmir, Turkey
| | - Mehmet Uzun
- Dokuz Eylul University, Department of Internal Medicine, Division of Medical Oncology, Izmir, Turkey
| | - Merve Keskinkilic
- Dokuz Eylul University, Department of Internal Medicine, Division of Medical Oncology, Izmir, Turkey
| | - Eda Tanrikulu Simsek
- Haydarpasa Numune Training and Research Hospital, Department of Medical Oncology, Istanbul, Turkey
| | - Murat Sari
- Marmara University Pendik Training and Research Hospital, Department of Medical Oncology, Istanbul, Turkey
| | - Tugba Yavuzsen
- Dokuz Eylul University, Department of Internal Medicine, Division of Medical Oncology, Izmir, Turkey
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Burke SM, Kamal M, Goey AKL. Development and Validation of a Quantitative LC-MS/MS Method for CDK4/6 Inhibitors Palbociclib, Ribociclib, Abemaciclib, and Abemaciclib-M2 in Human Plasma. Ther Drug Monit 2023; 45:327-336. [PMID: 36728357 PMCID: PMC10175095 DOI: 10.1097/ftd.0000000000001063] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/23/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND The cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors, palbociclib, ribociclib, and abemaciclib, are standard-of-care agents for patients with hormone receptor-positive human epidermal growth factor receptor 2-negative metastatic breast cancer. In support of therapeutic drug monitoring and clinical pharmacokinetic studies, a liquid chromatography coupled with tandem mass spectrometry assay for the simultaneous quantitation of CDK4/6 inhibitors and the major active metabolite M2 of abemaciclib in human plasma has been developed. METHODS Analytes were extracted from 50 μL of human plasma by precipitating proteins with methanol and then collecting the supernatant. Reversed-phase high-performance liquid chromatography was performed for analyte separation using a biphasic gradient at a flow rate of 0.25-0.5 mL/min. The total run time was 9.5 minutes. The analytes were detected using MS/MS with electrospray ionization operating in positive ion mode. RESULTS Validation according to the US Food and Drug Administration's guidance showed that the new assay produced accurate (94.7%-107%) and precise (within-run: 1.2%-8.2%; between-run: 0.6%-7.5%) measurements of all analytes over a concentration range of 5-2000 ng/mL. Overall, analyte recoveries were consistent (mean values: 110%-129%). The analytes were also stable in human plasma and the final extract under various storage conditions. Finally, the clinical applicability of the assay was confirmed by quantitation of all analytes in plasma samples obtained from patients treated with CDK4/6 inhibitors. Reproducibility of the measured analyte concentrations in study samples was confirmed successfully by incurred sample reanalysis. CONCLUSIONS A sensitive liquid chromatography coupled with tandem mass spectrometry method to measure CDK4/6 inhibitors was developed and validated according to the Food and Drug Administration criteria. Quantitation of all analytes in clinical plasma samples confirmed that the assay is suitable for therapeutic drug monitoring and clinical pharmacokinetic studies of CDK4/6 inhibitors.
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Affiliation(s)
- Sarah M Burke
- Bioanalytics, Metabolomics, and Pharmacokinetics Shared Resource, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Mustafa Kamal
- Bioanalytics, Metabolomics, and Pharmacokinetics Shared Resource, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Andrew K L Goey
- Bioanalytics, Metabolomics, and Pharmacokinetics Shared Resource, Roswell Park Comprehensive Cancer Center, Buffalo, New York
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
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Slamon DJ, Fasching PA, Hurvitz S, Chia S, Crown J, Martín M, Barrios CH, Bardia A, Im SA, Yardley DA, Untch M, Huang CS, Stroyakovskiy D, Xu B, Moroose RL, Loi S, Visco F, Bee-Munteanu V, Afenjar K, Fresco R, Taran T, Chakravartty A, Zarate JP, Lteif A, Hortobagyi GN. Rationale and trial design of NATALEE: a Phase III trial of adjuvant ribociclib + endocrine therapy versus endocrine therapy alone in patients with HR+/HER2- early breast cancer. Ther Adv Med Oncol 2023; 15:17588359231178125. [PMID: 37275963 PMCID: PMC10233570 DOI: 10.1177/17588359231178125] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
Background Ribociclib has demonstrated a statistically significant overall survival benefit in pre- and postmenopausal patients with hormone receptor positive/human epidermal growth factor receptor 2 negative (HR+/HER2-) advanced breast cancer. New Adjuvant Trial with Ribociclib [LEE011] (NATALEE) is a trial evaluating the efficacy and safety of adjuvant ribociclib plus endocrine therapy (ET) versus ET alone in patients with HR+/HER2- early nonmetastatic breast cancer (EBC). Methods/design NATALEE is a multicenter, randomized, open-label, Phase III trial in patients with HR+/HER2- EBC. Eligible patients include women, regardless of menopausal status, and men aged ⩾18 years. Select patients with stage IIA, stage IIB, or stage III disease (per the anatomic classification in the AJCC Cancer Staging Manual, 8th edition) with an initial diagnosis ⩽18 months prior to randomization are eligible. Patients receiving standard (neo)adjuvant ET are eligible if treatment was initiated ⩽12 months before randomization. Patients undergo 1:1 randomization to ribociclib 400 mg/day (3 weeks on/1 week off) +ET (letrozole 2.5 mg/day or anastrozole 1 mg/day [investigator's discretion] plus goserelin [men or premenopausal women]) or ET alone. Ribociclib treatment duration is 36 months; ET treatment duration is ⩾60 months. The primary end point is invasive disease-free survival. Discussion The 36-month treatment duration of ribociclib in NATALEE is extended compared with that in other adjuvant cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitor trials and is intended to maximize efficacy due to longer duration of CDK4/6 inhibition. Compared with the 600-mg/day dose used in advanced breast cancer, the reduced ribociclib dose used in NATALEE may improve tolerability while maintaining efficacy. NATALEE includes the broadest population of patients with HR+/HER2- EBC of any Phase III trial currently evaluating adjuvant CDK4/6 inhibitor treatment. Trial registration ClinicalTrials.gov identifier: NCT03701334 (https://clinicaltrials.gov/ct2/show/NCT03701334).
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Affiliation(s)
- Dennis J. Slamon
- David Geffen School of Medicine at UCLA, 10945
Le Conte Ave. Suite 3360, Los Angeles, CA 90095, USA
| | - Peter A. Fasching
- University Hospital Erlangen Comprehensive
Cancer Center Erlangen-EMN, Friedrich-Alexander University
Erlangen-Nuremberg, Erlangen, Germany
| | - Sara Hurvitz
- University of California, Los Angeles Jonsson
Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Stephen Chia
- British Columbia Cancer Agency, Vancouver, BC,
Canada
| | | | - Miguel Martín
- Instituto de Investigación Sanitaria Gregorio
Marañon, Centro de Investigación Biomédica en Red de Cáncer, Grupo Español
de Investigación en Cáncer de Mama, Universidad Complutense, Madrid,
Spain
| | - Carlos H. Barrios
- Centro de Pesquisa em Oncologia, Hospital São
Lucas, PUCRS, Latin American Cooperative Oncology Group (LACOG), Porto
Alegre, Brazil
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center,
Harvard Medical School, Boston, MA, USA
| | - Seock-Ah Im
- Cancer Research Institute, Seoul National
University Hospital, Seoul National University College of Medicine, Seoul,
Republic of Korea
| | - Denise A. Yardley
- Sarah Cannon Research Institute, Tennessee
Oncology, Nashville, TN, USA
| | - Michael Untch
- Interdisciplinary Breast Cancer Center, Helios
Klinikum Berlin-Buch, Berlin, Germany
| | - Chiun-Sheng Huang
- National Taiwan University Hospital, National
Taiwan University College of Medicine, Taipei City, Taiwan
| | - Daniil Stroyakovskiy
- Moscow City Oncology Hospital No. 62 of Moscow
Healthcare Department, Moscow Oblast, Russia
| | - Binghe Xu
- Department of Medical Oncology Cancer
Hospital, Chinese Academy of Medical Sciences and Peking Union Medical
College, Beijing, China
| | | | - Sherene Loi
- Peter MacCallum Cancer Centre, Melbourne,
Australia
| | - Frances Visco
- National Breast Cancer Coalition, Washington,
DC, USA
| | | | - Karen Afenjar
- TRIO – Translational Research in Oncology,
Paris, France
| | - Rodrigo Fresco
- TRIO – Translational Research in Oncology,
Montevideo, Uruguay
| | | | | | | | - Agnes Lteif
- Novartis Pharmaceuticals Corporation, East
Hanover, NJ, USA
| | - Gabriel N. Hortobagyi
- Department of Breast Medical Oncology, The
University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Cejuela M, Gil-Torralvo A, Castilla MÁ, Domínguez-Cejudo MÁ, Falcón A, Benavent M, Molina-Pinelo S, Ruiz-Borrego M, Salvador Bofill J. Abemaciclib, Palbociclib, and Ribociclib in Real-World Data: A Direct Comparison of First-Line Treatment for Endocrine-Receptor-Positive Metastatic Breast Cancer. Int J Mol Sci 2023; 24:ijms24108488. [PMID: 37239834 DOI: 10.3390/ijms24108488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 04/04/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
By the end of 2020, there were more than 8 million women alive who had received a breast cancer diagnosis in the previous 5 years, making it the most prevalent neoplasia in the world. About 70% of breast-cancer cases present positivity for estrogen and/or progesterone receptors and a lack of HER-2 overexpression. Endocrine therapy has traditionally been the standard of care for ER-positive and HER-2-negative metastatic breast cancer. In the last 8 years, the advent of CDK4/6 inhibitors has shown that adding them to endocrine therapy doubles PFS. As a result, this combination has become the gold standard in this setting. Three CDK4/6 inhibitors have been approved by the EMA and the FDA: abemaciclib, palbociclib, and ribociclib. They all have the same indications, and it is at each physician's discretion to choose one or the other. The aim of our study was to perform a comparative efficacy analysis of the three CDK4/6i using real-world data. We selected patients diagnosed with endocrine-receptor-positive and HER2-negative breast cancer who were treated with all three CDK4/6i as first-line therapy at a reference center. After 42 months of retrospective follow up, abemaciclib was associated with a significant benefit in terms of progression-free survival in endocrine-resistant patients and in the population without visceral involvement. In our real-world cohort, we found no other statistically significant differences among the three CDK4/6 inhibitors.
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Affiliation(s)
- Mónica Cejuela
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
| | - Ana Gil-Torralvo
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
| | - M Ángeles Castilla
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
| | - M Ángeles Domínguez-Cejudo
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
| | - Alejandro Falcón
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
| | - Marta Benavent
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
| | - Sonia Molina-Pinelo
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
| | - Manuel Ruiz-Borrego
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
| | - Javier Salvador Bofill
- Medical Oncology Department, Virgen del Rocio Hospital, 41013 Seville, Spain
- Institute of Biomedicine of Seville (IBiS), HUVR, CSIC, Universidad de Sevilla, 41013 Seville, Spain
- Andalusia-Roche Network Mixed Alliance in Precision Medical Oncology, 41092 Sevilla, Spain
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Kubeczko M, Jarząb M, Krzywon A, Gräupner D, Polakiewicz-Gilowska A, Gabryś D. Efficacy of CDK 4/6 Inhibitors and Radiotherapy in Breast Cancer Patients with Brain Metastases. J Clin Med 2023; 12. [PMID: 36902831 DOI: 10.3390/jcm12052044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) combined with endocrine therapy are the standard of care for HR-positive/HER2-negative advanced breast cancer patients. However, their role in the treatment of brain metastases is currently unclear. We retrospectively evaluate the results of patients (pts) with advanced breast cancer treated at our institution with CDK4/6i and radiotherapy to the brain. The primary endpoint was progression-free survival (PFS). Secondary endpoints were local control (LC) and severe toxicity. Among 371 pts treated with CDK4/6i, 24 pts (6.5%) received radiotherapy to the brain before (11 pts), during (6 pts), or after (7 pts) CDK4/6i treatment. Sixteen pts received ribociclib, six received palbociclib, and two received abemaciclib. Six- and twelve-month PFS was 76.5% (95% CI: 60.3-96.9) and 49.7% (95% CI: 31.7-77.9), respectively, whereas six- and twelve-month LC was 80.2% (95% CI: 58.7-100) and 68.8% (95% CI: 44.5-100), respectively. With a median follow-up of 9.5 months, no unexpected toxicity was observed. We conclude that treatment with both CDK4/6i and brain radiotherapy is feasible and should not increase the toxicity compared to brain radiotherapy or CDK4/6i alone. However, the small number of individuals treated concurrently limits the conclusions about the combination of both modalities, and the results from ongoing prospective clinical trials are eagerly awaited to understand both the toxicity profile and the clinical response fully.
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Rugo HS, Harmer V, O’Shaughnessy J, Jhaveri K, Tolaney SM, Cardoso F, Bardia A, Maheshwari VK, Tripathi S, Haftchenary S, Pathak P, Fasching PA. Quality of life with ribociclib versus abemaciclib as first-line treatment of HR+/HER2- advanced breast cancer: a matching-adjusted indirect comparison. Ther Adv Med Oncol 2023; 15:17588359231152843. [PMID: 36861085 PMCID: PMC9969464 DOI: 10.1177/17588359231152843] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/28/2022] [Accepted: 01/05/2023] [Indexed: 03/03/2023] Open
Abstract
Background A cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) + endocrine therapy is recommended as first-line treatment for hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer (ABC). Quality of life (QoL) is an important endpoint that affects treatment decisions. Understanding the relevance of CDK4/6i treatment on QoL is gaining importance given use in earlier treatment lines for ABC and an emerging role in treating early breast cancer in which QoL may be more impactful. In the absence of head-to-head trial data, a matching-adjusted indirect comparison (MAIC) permits comparative efficacy between trials. Objective In this analysis, patient-reported QoL for MONALEESA-2 [ribociclib + aromatase inhibitor (AI)] and MONARCH 3 (abemaciclib + AI) was compared using MAIC with a focus on individual domains. Design An anchored MAIC of QoL comparing ribociclib + AI versus abemaciclib + AI was performed using data from the European Organization for Research and Treatment of Cancer quality of life questionnaire (QLQ)-C30 and BR-23 questionnaires. Methods Individual patient data from MONALEESA-2 and published aggregated data from MONARCH 3 were included in this analysis. Time to sustained deterioration (TTSD) was calculated as the time from randomization to a ⩾10-point deterioration with no later improvement above this threshold. Results Patients from the ribociclib (n = 205) and placebo (n = 149) arms of MONALEESA-2 were matched with patients from the abemaciclib (n = 328) and placebo (n = 165) arms of MONARCH 3. After weighting, baseline patient characteristics were well balanced. TTSD significantly favored ribociclib versus abemaciclib in appetite loss [hazard ratio (HR), 0.46; 95% confidence interval (CI), 0.27-0.81], diarrhea (HR, 0.42; 95% CI, 0.23-0.79), fatigue (HR, 0.63; 95% CI, 0.41-0.96), and arm symptoms (HR, 0.49; 95% CI, 0.30-0.79). TTSD did not significantly favor abemaciclib compared with ribociclib in any functional or symptom scale of the QLQ-C30 or BR-23 questionnaires. Conclusions This MAIC indicates that ribociclib + AI is associated with better symptom-related QoL than abemaciclib + AI for postmenopausal patients with HR+/HER2- ABC treated in the first-line setting. Trial registration NCT01958021 (MONALEESA-2) and NCT02246621 (MONARCH 3).
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Affiliation(s)
| | | | - Joyce O’Shaughnessy
- Texas Oncology-Baylor University Medical Center
and The US Oncology Research Network, Dallas, TX, USA
| | - Komal Jhaveri
- Memorial Sloan Kettering Cancer Center, New
York, NY, USA
| | | | - Fatima Cardoso
- Breast Unit, Champalimaud Clinical Center,
Champalimaud Foundation, Lisbon, Portugal
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center,
Harvard Medical School, Boston, MA, USA
| | | | | | | | | | - Peter A. Fasching
- University Hospital Erlangen, Comprehensive
Cancer Center Erlangen–European Metropolitan Region of Nuremberg, and
Department of Gynecology and Obstetrics, Friedrich-Alexander University
Erlangen-Nuremberg, Erlangen, Germany
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Abstract
INTRODUCTION Cyclin-dependent kinase (CDK) 4/6 inhibitors have shown a different adverse effect. In this case, persistent grade 3 hepatoxicity was observed after ribociclib. Therefore, ribociclib therapy was stopped, and then palbociclib was introduced. Transaminase levels returned to normal by switching to palbociclib therapy. CASE REPORT 71-year-old postmenopausal female patient with luminal subtypes of metastatic breast cancer treated with ribociclib. MANAGEMENT & OUTCOME Grade 3 hepatotoxicity secondary to ribociclib developed. She was successfully treated with palbociclib 125 mg. DISCUSSION In our case, palbociclib was started with a full dose, to increase treatment success. Starting with a 125 mg dose was not cause any toxicity. Nevertheless, laboratory follow-up is required in terms of neutropenia and increased transaminases.
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Affiliation(s)
- Muhammed Muhiddin Er
- Department of Medical Oncology, 64222Necmettin Erbakan University School of Medicine, Konya, Turkey
| | - Murat Araz
- Department of Medical Oncology, 64222Necmettin Erbakan University School of Medicine, Konya, Turkey
| | - Engin Hendem
- Department of Medical Oncology, 64222Necmettin Erbakan University School of Medicine, Konya, Turkey
| | - Melek Karakurt Eryılmaz
- Department of Medical Oncology, 64222Necmettin Erbakan University School of Medicine, Konya, Turkey
| | - Mehmet Artaç
- Department of Medical Oncology, 64222Necmettin Erbakan University School of Medicine, Konya, Turkey
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Ziobro M, Grela-Wojewoda A. Shifting Treatment Paradigms: Improvements in HR-Positive, HER-2- Negative Breast Cancer Care in Poland from a Clinical Perspective. Biomedicines 2023; 11:biomedicines11020510. [PMID: 36831045 PMCID: PMC9953114 DOI: 10.3390/biomedicines11020510] [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: 01/21/2023] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 02/12/2023] Open
Abstract
Patients with hormone-receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer constitute about 70% of the breast cancer population. About 35% of these patients develop distant metastases and their treatment will be palliative. Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors were shown to significantly improve the outcomes of these patients. In combination with endocrine therapy, they have become the standard first-line treatment for HR-positive, HER2-negative breast cancer. In Poland, treatment with CDK4/6 inhibitors is reimbursed only for patients participating in the drug program of the Ministry of Health. However, fulfilling the eligibility criteria for the program may be challenging both for patients and for clinicians. This may lead to a delay in treatment with CDK4/6 inhibitors or a decision to use older and less effective drugs that are more widely available. The aim of this review was to compare the efficacy of first-line therapies in patients with HR-positive, HER2-negative metastatic breast cancer depending on the use of CDK4/6 inhibitors. We compared the efficacy of previous standard therapies with that of ribociclib, a CDK4/6 inhibitor, based on the median progression-free survival (PFS) as an outcome. Median PFS is not affected by the efficacy of subsequent treatment lines and is easy to interpret both for clinicians and for patients. The first-line treatment with chemotherapy or endocrine therapy (without CDK4/6 inhibitors) prolongs median PFS by several months and even to over a dozen months. The first-line treatment with endocrine therapy plus CDK4/6 inhibitors provides an opportunity to achieve a median PFS of more than 25 months and to prolong it by about 9 to 14 months.
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Kubeczko M, Gabryś D, Gawkowska M, Polakiewicz-Gilowska A, Cortez AJ, Krzywon A, Woźniak G, Latusek T, Leśniak A, Świderska K, Mianowska-Malec M, Łanoszka B, Chomik K, Gajek M, Michalik A, Nowicka E, Tarnawski R, Rutkowski T, Jarząb M. Safety and Feasibility of Radiation Therapy Combined with CDK 4/6 Inhibitors in the Management of Advanced Breast Cancer. Cancers (Basel) 2023; 15. [PMID: 36765648 DOI: 10.3390/cancers15030690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
The addition of CDK4/6 inhibitors to endocrine therapy in advanced hormone receptor-positive HER2-negative breast cancer has led to practice-changing improvements in overall survival. However, data concerning the safety of CDK4/6i combination with radiotherapy (RT) are conflicting. A retrospective evaluation of 288 advanced breast cancer patients (pts) treated with CDK4/6i was performed, and 100 pts also received RT. Forty-six pts received 63 RT courses concurrently and fifty-four sequentially before CDK4/6i initiation (76 RT courses). Neutropenia was common (79%) and more frequent during and after concurrent RT than sequential RT (86% vs. 76%); however, CDK4/6i dose reduction rates were similar. In patients treated with CDK4/6i alone, the dose reduction rate was 42% (79 pts) versus 38% with combined therapy, and 5% discontinued treatment due to toxicity in the combined group. The risk of CDK4/6i dose reduction was correlated with neutropenia grade, RT performed within the first two CDK4/6i cycles, and more than one concurrent RT; a tendency was observed in concurrent bone irradiation. However, on multivariate regression analysis, only ECOG 1 performance status and severe neutropenia at the beginning of the second cycle were found to be associated with a higher risk of CDK4/6i dose reduction. This largest single-center experience published to date confirmed the acceptable safety profile of the CDK4/6i and RT combination without a significantly increased toxicity compared with CDK4/6i alone. However, one might delay RT for the first two CDK4/6i cycles, when myelotoxic AE are most common.
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Krasniqi E, Goeman F, Pulito C, Palcau AC, Ciuffreda L, Di Lisa FS, Filomeno L, Barba M, Pizzuti L, Cappuzzo F, Sanguineti G, Maugeri-Saccà M, Ciliberto G, Fanciulli M, Blandino G, Vici P. Biomarkers of Response and Resistance to CDK4/6 Inhibitors in Breast Cancer: Hints from Liquid Biopsy and microRNA Exploration. Int J Mol Sci 2022; 23. [PMID: 36498861 DOI: 10.3390/ijms232314534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022] Open
Abstract
New evidence on the impact of dysregulation of the CDK4/6 pathway on breast cancer (BC) cell proliferation has led to the development of selective CDK4/6 inhibitors, which have radically changed the management of advanced BC. Despite the improved outcomes obtained by CDK4/6 inhibitors, approximately 10% of tumors show primary resistance, whereas acquired resistance appears to be an almost ubiquitous occurrence, leading to treatment failure. The identification of differentially expressed genes or genomic mutational signatures able to predict sensitivity or resistance to CDK4/6 inhibitors is critical for medical decision making and for avoiding or counteracting primary or acquired resistance against CDK4/6 inhibitors. In this review, we summarize the main mechanisms of resistance to CDK4/6 inhibitors, focusing on those associated with potentially relevant biomarkers that could predict patients' response/resistance to treatment. Recent advances in biomarker identification are discussed, including the potential use of liquid biopsy for BC management and the role of multiple microRNAs as molecular predictors of cancer cell sensitivity and resistance to CDK4/6 inhibitors.
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Di Lauro V, Barchiesi G, Martorana F, Zucchini G, Muratore M, Fontanella C, Arpino G, Del Mastro L, Giuliano M, Puglisi F, De Laurentiis M. Health-related quality of life in breast cancer patients treated with CDK4/6 inhibitors: a systematic review. ESMO Open 2022; 7:100629. [PMID: 36399953 DOI: 10.1016/j.esmoop.2022.100629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/30/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Evaluation of health-related quality of life (HR-QoL) among cancer patients has gained an increasing importance and is now a key determinant of anticancer treatments' value. HR-QoL has been assessed in trials testing cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) in breast cancer (BC), using various questionnaires at different timepoints. HR-QoL reports from BC patients treated with CDK4/6i in the real-world setting are also available. METHODS We systematically reviewed the literature, searching for full-length articles, and selected conference abstracts reporting data on HR-QoL in BC patients at any stage and of any molecular subtype treated with abemaciclib, palbociclib or ribociclib. RESULTS A total of 533 full-length articles and 143 abstracts were retrieved. After screening for eligibility, 38 records were included (31 clinical trials; 7 real-world reports). Assessment methods were heterogeneous across studies in terms of questionnaires, evaluation timepoints and endpoints. Overall, adding CDK4/6i to endocrine therapy did not worsen patients' HR-QoL, with a positive trend towards pain improvement. Gastrointestinal scores (diarrhea, nausea and appetite loss) statistically favored the control arm among metastatic BC patients receiving abemaciclib, whereas they were superimposable in the early setting. The combination of palbociclib and endocrine therapy showed similar HR-QoL outcomes compared with endocrine therapy alone, but determined better scores compared with chemotherapy. HR-QoL was specifically assessed in premenopausal patients treated with ribociclib, showing similar scores compared with postmenopausal patients. CONCLUSIONS Despite methodological heterogeneity does not allow a proper comparison, HR-QoL was generally maintained with CDK4/6i. However, differences between abemaciclib, palbociclib and ribociclib exist and mainly rely on the distinct safety profiles of the compounds. These differences should be acknowledged and taken into account in the clinical practice.
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Gulde S, Foscarini A, April-Monn SL, Genio E, Marangelo A, Satam S, Helbling D, Falconi M, Toledo RA, Schrader J, Perren A, Marinoni I, Pellegata NS. Combined Targeting of Pathogenetic Mechanisms in Pancreatic Neuroendocrine Tumors Elicits Synergistic Antitumor Effects. Cancers (Basel) 2022; 14:cancers14225481. [PMID: 36428573 PMCID: PMC9688197 DOI: 10.3390/cancers14225481] [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: 10/12/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Pancreatic neuroendocrine neoplasms (PanNENs) are the second most common malignancy of the pancreas. Surgery remains the only curative treatment for localized disease. For patients with inoperable advanced or metastatic disease, few targeted therapies are available, but their efficacy is unpredictable and variable. Exploiting prior knowledge on pathogenetic processes involved in PanNEN tumorigenesis, we tested buparlisib (PI3K inhibitor) and ribociclib (CDK4/6 inhibitor), as single agents or in combination, in different preclinical models. First, we used cell lines representative of well-differentiated (INS-1E, NT-3) and poorly differentiated (BON-1) PanNENs. The combination of buparlisib with ribociclib reduced the proliferation of 2D and 3D spheroid cultures more potently than the individual drugs. Buparlisib, but not ribociclib, induced apoptosis. The anti-proliferative activity of the drugs correlated with downstream target inhibition at mRNA and protein levels. We then tested the drugs on primary islet microtissues from a genetic PanNET animal model (Men1-defective mice) and from wild-type mice: the drug combination was effective against the former without altering islet cell physiology. Finally, we treated PanNET patient-derived islet-like 3D tumoroids: the combination of buparlisib with ribociclib was effective in three out of four samples. Combined targeting of PI3K and CDK4/6 is a promising strategy for PanNENs spanning various molecular and histo-pathological features.
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Affiliation(s)
- Sebastian Gulde
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | - Alessia Foscarini
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
| | | | - Edoardo Genio
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
| | - Alessandro Marangelo
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
| | - Swapna Satam
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | | | - Massimo Falconi
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Centre, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Rodrigo A. Toledo
- CIBERONC, Gastrointestinal and Endocrine Tumors, VHIO, 08035 Barcelona, Spain
| | - Jörg Schrader
- Department of Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
- Department of Medicine, Klinikum Nordfriesland, 25813 Husum, Germany
| | - Aurel Perren
- Institute of Pathology, University of Bern, 3012 Bern, Switzerland
| | - Ilaria Marinoni
- Institute of Pathology, University of Bern, 3012 Bern, Switzerland
| | - Natalia S. Pellegata
- Institute for Diabetes and Cancer, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
- Correspondence: ; Tel.: +49-089-31872633; Fax: +49-089-31873360
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Ganguly S, Mukherjee N, Mandal S, Roy S, Agarwal S, Biswas B, Ghosh J. Efficacy of cyclin-dependent kinase 4/6 inhibitors in patients with metastatic hormone positive breast cancer: a single institutional study from India. Ecancermedicalscience 2022; 16:1450. [PMID: 36405937 PMCID: PMC9666281 DOI: 10.3332/ecancer.2022.1450] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 09/29/2023] Open
Abstract
PURPOSE Cyclin-dependent kinase 4/6 (CDK4/6) inhibitors have shown marked benefit in the treatment of hormone positive metastatic breast cancer (HR+ MBC). There are limited real-world studies with palbociclib and ribociclib. Here we report our experience with CDK4/6 inhibitors in these groups of patients. MATERIAL AND METHODS Patients with HR+ MBC who have received either palbociclib or ribociclib during the course of their treatment from January 2017 to January 2022 were included in the study. The baseline demographic features, treatment details and toxicity were recorded. Patients who received at least 1 month of therapy were included in the survival analysis. RESULTS A total of 144 patients received CDK4/6 inhibitors during the time period. The median age of the population was 53 (30-80) years. Ninety-eight (71.4%) patients presented with de novo metastatic disease. The most common site of metastasis was to the skeleton (74.2%). Most patients (75%) received palbociclib as their therapy. At a median follow-up of 20.2 months, the median progression free survival (PFS) of the whole population was 16.5 (95% confidence interval (95% CI): 11.6-25.5) months and the median overall survival (OS) was 29.7 (95% CI: 21.7-44.6) months. The presence of liver metastases, low progesterone receptor positivity (Allred score < 6) and prior systemic treatment were poor prognostic factors for both PFS and OS in multivariate analysis. Drug was discontinued for only 2.1% of the patient population. CONCLUSIONS Use of CDK4/6 inhibitors has led to improvement in PFS and OS in patients with HR+ MBC and it is well tolerated. The presence of liver metastases and low progesterone receptor positivity (Allred score < 6) and prior treatment are poor prognostic factors.
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Affiliation(s)
- Sandip Ganguly
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Navonil Mukherjee
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Sayan Mandal
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Somnath Roy
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Sanjit Agarwal
- Department of Breast Surgery, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Bivas Biswas
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
| | - Joydeep Ghosh
- Department of Medical Oncology, Tata Medical Center, 14 Mar EW Arterial Road, Newtown, Kolkata 7000160, India
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Sahu AK, Jadav T, Rajput N, Sharma MK, Sengupta P. Bioanalysis by LC-MS/MS and preclinical pharmacokinetic interaction study of ribociclib and oleanolic acid. Bioanalysis 2022. [PMID: 36148926 DOI: 10.4155/bio-2022-0123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Ribociclib (RIBO), approved in 2017 for HR-positive and HER-2-negative metastatic breast cancer treatment is reported to have the potential to induce hepatobiliary toxicity in patients. Oleanolic acid (OLA) has hepatoprotective potential that can be beneficial if coadministered with RIBO. Methodology & results: The primary scope of this study was to develop quantitative bioanalytical methods for RIBO and OLA. Two methods (for +ve electrospray ionization [ESI] and -ve ESI) were developed and validated according to USFDA bioanalytical guidelines. Discussion/conclusion: A single and simple sample preparation method was developed with >75% recovery. The accuracy and precision for RIBO and OLA were within acceptable limits over the calibration range of 5-500 ng/ml. This work reports, for the first time, the drug-drug interaction potential between RIBO and OLA.
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Al-Shdefat R, Hailat M, Alshogran OY. Solubilization of a novel antitumor drug ribociclib in water and ten different organic solvents at different temperatures. Drug Dev Ind Pharm 2022; 48:12-20. [PMID: 35695255 DOI: 10.1080/03639045.2022.2089161] [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] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This study reports new solubility and physicochemical data for ribociclib (RCB) in water and ten organic solvents including "methanol (MeOH), ethanol (EtOH), isopropyl alcohol (IPA), n-butanol (n-BuOH), propylene glycol (PG), polyethylene glycol-400 (PEG-400), acetone, ethyl acetate (EA), Transcutol-HP (THP), and dimethyl sulfoxide (DMSO)" at 293.2-313.2 K and 101.1 kPa. SIGNIFICANCE The obtained data are useful for the industrial applications of RCB. METHODS The solubility of RCB was measured and regressed using "van't Hoff, Buchowski-Ksiazczak λh, the modified Apelblat, and Jouyban models." RESULTS The overall deviations of <4.0% were recorded for all four models. The maximum mole fraction solubility of RCB was 2.66 × 10-2 in PEG-400 at 313.2 K, however, the lowest one was in the water. The RCB solubility increased with temperature and the order followed in the water and ten different organic solvents was PEG-400 (2.66 × 10-2) > THP (1.00 × 10-2) > PG (5.39 × 10-3) > DMSO (5.00 × 10-3) > n-BuOH (3.23 × 10-3) > acetone (3.11 × 10-3) > IPA (1.58 × 10-3) > EA (1.41 × 10-3) > EtOH (1.37 × 10-3) > MeOH (8.10 × 10-4) > water (2.38 × 10-5) at 313.2 K. The maximum solute-solvent interactions were found in RCB-PEG-400 in comparison with other combination of RCB and solvents. "Apparent thermodynamic analysis" indicated an "endothermic and entropy-driven dissolution" of RCB in water and ten organic solvents. CONCLUSIONS Based on all these data and observations, PEG-400 can be used as the best co-solvent for RCB solubilization.
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Affiliation(s)
- Ramadan Al-Shdefat
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Jadara University, Irbid, Jordan
| | - Mohammad Hailat
- College of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Osama Y Alshogran
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Science and Technology, Irbid, Jordan
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Borstnar S, Palacova M, Łacko A, Timcheva C, Gal-Yam EN, Papazisis K, Beniak J, Kudela P, Rubovszky G. Ribociclib plus letrozole in patients with hormone receptor-positive, HER2-negative advanced breast cancer with no prior endocrine therapy: subgroup safety analysis from the phase 3b CompLEEment-1 trial. Radiol Oncol 2022; 56:238-47. [PMID: 35575587 DOI: 10.2478/raon-2022-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/08/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The CDK4/6 inhibitor, ribociclib in combination with endocrine therapy significantly improved progression-free survival in the first line setting in post-menopausal patients with HR+/HER2- advanced breast cancer (ABC) in a pivotal phase 3, placebo-controlled trial (MONALEESA-2) and demonstrated superior overall survival in premenopausal patients with HR+/HER2- ABC (MONALEESA-7). The multinational, phase 3b, CompLEEment-1 trial, which assessed the safety and efficacy of ribociclib plus letrozole in a broader population of patients who have not received prior endocrine therapy for advanced disease, is the largest phase 3 clinical trial to date to evaluate the safety and efficacy of a CDK4/6 inhibitor. We report a subanalysis of data from patients (N = 339) enrolled in the central and south European countries of the SERCE (Southern Europe, RUC, Central Europe) cluster of CompLEEment-1. PATIENTS AND METHODS Men and women of any menopausal status with HR+/HER2- ABC received once-daily oral ribociclib 600 mg (3-weeks on/1-week-off), plus letrozole 2.5 mg continuously. Men/premenopausal women also received a GnRH-agonist. The primary outcome was the number of patients with adverse events (AEs) over a timeframe of approximately 36 months. Time-to-progression, overall response rate, and clinical benefit rate were also measured. RESULTS Safety results in the SERCE subgroup were consistent with those in the pivotal clinical trials of ribociclib in combination with endocrine therapy. Treatment-related AEs leading to dose adjustments/interruption occurred in 63.1% of patients but led to treatment discontinuation in only 10.6%. The most common treatment-related AEs of grade ≥ 3 were neutropenia and transaminase elevations. There were no fatal treatment-related events. CONCLUSIONS These findings from the SERCE subgroup support the safety and manageable tolerability of ribociclib in a broad range of patients with HR+/HER2- ABC more representative of patients in real-world clinical practice.
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45
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Silvestre Torner N, Aguilar Martínez A, Echarri González MJ, Tabbara Carrascosa S, Román Sainz J, Gruber Velasco F. Ribociclib-induced Vitiligo: a Case Report. Dermatol Pract Concept 2022; 12:e2022045. [PMID: 35646430 PMCID: PMC9116537 DOI: 10.5826/dpc.1202a45] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2021] [Indexed: 07/25/2023] Open
Affiliation(s)
| | | | | | | | - Jorge Román Sainz
- Department of Dermatology, Hospital Universitario Severo Ochoa, Leganés (Madrid), Spain
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46
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Chan OB, Su JC, Yazdabadi A, Chan A. Drug induced vitiligo-like depigmentation from a CDK 4/6 inhibitor. Asia Pac J Clin Oncol 2022; 18:e154-e156. [PMID: 34180575 DOI: 10.1111/ajco.13585] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 02/02/2021] [Accepted: 02/14/2021] [Indexed: 11/29/2022]
Abstract
Ribociclib is an inhibitor of cyclin-dependent kinases 4 and 6 (CDK 4/6) that is used in combination with an aromatase inhibitor in the first-line setting for advanced or metastatic hormone receptor positive and human epidermal growth factor receptor 2 (HER2)-negative breast cancer. We report two cases of drug-induced vitiligo-like depigmentation (DI-VLD) associated with ribociclib. The awareness of this side effect is important given the increasing use of this drug and others with a similar mechanism of action.
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Affiliation(s)
- On B Chan
- Department of Dermatology, Eastern Health, Monash University, Victoria, Australia
| | - John C Su
- Faculty of Medicine, University of Melbourne, Victoria, Australia.,Population Health, Murdoch Children's Research Institute, Victoria, Australia
| | - Anousha Yazdabadi
- Department of Dermatology, Eastern Health, Monash University, Victoria, Australia.,Faculty of Medicine, University of Melbourne, Victoria, Australia
| | - Arlene Chan
- School of Medicine, Curtin University & Breast Cancer Research Centre, Western Australia, Australia
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47
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Botticelli A, Fabbri A, Roberto M, Alesini D, Cirillo A, D'Auria G, Krasniqi E, Marrucci E, Muratore M, Pantano F, Pizzuti L, Portarena I, Rossi R, Scagnoli S, Marchetti P. The Role of the CDK4/6 Inhibitor Ribociclib in Locally Advanced and Oligometastatic Hormone Receptor Positive, Her2 Negative, Advanced Breast Cancer: Case Series and Review of the Literature. Front Oncol 2022; 12:797157. [PMID: 35223478 PMCID: PMC8864134 DOI: 10.3389/fonc.2022.797157] [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: 10/18/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
The recent addition of cyclin-dependent kinase 4 (CDK4) and CDK6 inhibitors to endocrine therapy has remarkably improved the outcome of patients affected with hormone receptor positive (HR+), human epidermal grow factor receptor 2 negative (HER2 -) advanced breast cancer (ABC). Ribociclib showed to be effective across most subgroups, regardless of the number and the site of metastasis. Up to 10% of patients with ABC, reported an oligometastatic condition, recently defined as a slow-volume metastatic disease with limited number and size of metastatic lesions (up to 5 and not necessarily in the same organ), potentially amenable for local treatment, aimed at achieving a complete remission status. Despite the wide use of CDK4/6 inhibitors in HR+, HER2-, ABC treatment, data regarding both locally advanced, inoperable disease and oligometastatic conditions are still poor. We reported a review and case series of HR+, HER2-, ABC patients treated with ribociclib as first-line therapy, for a locally advanced and oligometastatic conditions, reporting an impressive response and good safety profile.
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Affiliation(s)
- Andrea Botticelli
- Medical Oncology Unit B, Policlinico Umberto I, Rome, Italy.,Department of Clinical and Molecular Medicine, Sapienza University of Rome, Oncology Unit, Sant'Andrea Hospital, Rome, Italy
| | - Agnese Fabbri
- Medical Oncology Unit, Belcolle Hospital, Viterbo, Italy
| | - Michela Roberto
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Oncology Unit, Sant'Andrea Hospital, Rome, Italy.,Medical Oncology Unit A, Policlinico Umberto I, Rome, Italy
| | - Daniele Alesini
- UOSD Centro Oncologico S. Spirito e Nuovo Regina Margherita (SS-NRM), Ospedale Santo Spirito in Sassia, Rome, Italy
| | - Alessio Cirillo
- Medical Oncology Unit B, Policlinico Umberto I, Rome, Italy.,Department of Radiological, Oncological and Anatomo-Pathological Science, "Sapienza" University of Rome, Rome, Italy
| | - Giuliana D'Auria
- Department of Medical Oncology, Sandro Pertini Hospital, Rome, Italy
| | - Eriseld Krasniqi
- Division of Medical Oncology 2, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Regina Elena National Cancer Institute, Rome, Italy
| | | | - Margherita Muratore
- Division of Gynecologic Oncology, Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario Agostino Gemelli Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Francesco Pantano
- Department of Oncology, University Campus Biomedico of Rome, Rome, Italy
| | - Laura Pizzuti
- Division of Medical Oncology 2, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Regina Elena National Cancer Institute, Rome, Italy
| | - Ilaria Portarena
- Medical Oncology Unit, Internal Medicine Department, Tor Vergata Clinical Center University Hospital, Rome, Italy
| | - Rosalina Rossi
- Medical Oncology, San Giovanni Addolorata Hospital, Rome, Italy
| | - Simone Scagnoli
- Medical Oncology Unit B, Policlinico Umberto I, Rome, Italy.,Department of Medical and Surgical Sciences and Translational Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Paolo Marchetti
- Medical Oncology Unit B, Policlinico Umberto I, Rome, Italy.,Department of Clinical and Molecular Medicine, Sapienza University of Rome, Oncology Unit, Sant'Andrea Hospital, Rome, Italy
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Abate A, Rossini E, Tamburello M, Laganà M, Cosentini D, Grisanti S, Fiorentini C, Tiberio GAM, Scatolini M, Grosso E, Hantel C, Memo M, Berruti A, Sigala S. Ribociclib Cytotoxicity Alone or Combined With Progesterone and/or Mitotane in in Vitro Adrenocortical Carcinoma Cells. Endocrinology 2022; 163:6455501. [PMID: 34875044 DOI: 10.1210/endocr/bqab248] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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] [Received: 10/01/2021] [Indexed: 11/19/2022]
Abstract
Mitotane is the only approved drug for treating adrenocortical carcinoma (ACC). The regimen added to mitotane is chemotherapy with etoposide, doxorubicin, and cisplatin. This pharmacological approach, however, has a limited efficacy and significant toxicity. Target-therapy agents represent a new promising approach to cancer therapy. Among these, a preeminent role is played by agents that interfere with cell-cycle progression, such as CDK4/6-inhibitors. Here, we investigate whether ribociclib could induce a cytotoxic effect both in ACC cell line and patient-derived primary cell cultures, alone or in combined settings. Cell viability was determined by 3-(4,5-dimethyl-2-thiazol)-2,5-diphenyl-2H-tetrazolium bromide assay, whereas cell proliferation was evaluated by direct count. Binary combination experiments were performed using Chou and Talalay method. Gene expression was analyzed by quantitative RT-PCR, whereas protein expression was evaluated by immunofluorescence. A double staining assay revealed that ribociclib induced a prevalent apoptotic cell death. Cell-cycle analysis was performed to evaluate the effect of ribociclib treatment on cell-cycle progression in ACC cell models. Our results indicate that ribociclib was cytotoxic and reduced the cell proliferation rate. The effect on cell viability was enhanced when ribociclib was combined with progesterone and/or mitotane. The effect of ribociclib on cell-cycle progression revealed a drug-induced cell accumulation in G2 phase. The positive relationship underlined by our results between ribociclib, progesterone, and mitotane strengthen the clinical potential of this combination.
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Affiliation(s)
- Andrea Abate
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Elisa Rossini
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Mariangela Tamburello
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Marta Laganà
- Medical Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, 25123, Italy
| | - Deborah Cosentini
- Medical Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, 25123, Italy
| | - Salvatore Grisanti
- Medical Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, 25123, Italy
| | - Chiara Fiorentini
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Guido A M Tiberio
- Surgical Clinic, Department of Clinical and Experimental Sciences, University of Brescia at ASST Spedali Civili di Brescia, Brescia, 25123, Italy
| | - Maria Scatolini
- Molecular Oncology Laboratory, "Edo ed Elvo Tempia" Foundation, Ponderano, 13875, Biella, Italy
| | - Enrico Grosso
- Molecular Oncology Laboratory, "Edo ed Elvo Tempia" Foundation, Ponderano, 13875, Biella, Italy
| | - Constanze Hantel
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
- Medizinische Klinik und Poliklinik III, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Maurizio Memo
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Alfredo Berruti
- Medical Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, 25123, Italy
| | - Sandra Sigala
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
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Sharaf B, AlMasri R, Abdel-Razeq N, Salama O, Hamad I, Abunasser M, Abdel-Razeq H. Vitiligo-Like Lesions in a Patient with Metastatic Breast Cancer Treated with Cyclin-Dependent Kinase (CDK) 4/6 Inhibitor: A Case Report and Literature Review. Clin Cosmet Investig Dermatol 2022; 15:5-10. [PMID: 35023941 PMCID: PMC8743357 DOI: 10.2147/ccid.s344867] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 12/16/2021] [Indexed: 11/23/2022]
Abstract
Background Cyclin-dependent kinase (CDK) 4/6 inhibitors have revolutionized the treatment landscape of hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2−) metastatic breast cancer, with an impressive efficacy and safety profile. Cytopenia is the main adverse event, which is both predictable and manageable. Here, we report a case of CDK4/6 inhibitor-induced vitiligo-like lesions. Vitiligo or vitiligo-like lesions are a rare adverse event; only a few cases are reported in the literature. Case Presentation A 71-year-old female patient was diagnosed initially with early-stage right breast cancer (HR+/HER2−) and was treated with breast-conserving surgery followed by chemotherapy, radiotherapy, and hormonal therapy. A few years later, she developed metastatic disease to the hilar lymph nodes, and to multiple skeletal sites, including the left scapula, left shoulder, left iliac bone, and dorsal vertebrae, for which she was treated with ribociclib and letrozole. While on treatment, she developed hypopigmented lesions involving both hands, feet, and face, which were described as vitiligo-like lesions. Conclusion CDK4/6 inhibitor-induced vitiligo is a rare and unpredictable adverse event. This case report highlights the rarity of this adverse event, the dilemma related to the optimal treatment, and decisions related to continuation, holding, or switching CDK4/6 inhibitors.
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Affiliation(s)
- Baha' Sharaf
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Rama AlMasri
- Department of Internal Medicine, Istishari Hospital, Amman, Jordan
| | - Nayef Abdel-Razeq
- Department of Internal Medicine, Henry Ford Hospital, Detroit, MI, USA
| | - Osama Salama
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Ibrahim Hamad
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Mahmoud Abunasser
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
| | - Hikmat Abdel-Razeq
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan.,School of Medicine, University of Jordan, Amman, Jordan
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Abstract
Cyclin-dependent kinases (CDK) regulate cell cycle progression. During tumor development, altered expression and availability of CDKs strongly contribute to impaired cell proliferation, a hallmark of cancer. In recent years, targeted inhibition of CDKs has shown considerable therapeutic benefit in a variety of tumor entities. Their success is reflected in clinical approvals of specific CDK4/6 inhibitors for breast cancer. This review provides a detailed insight into the molecular mechanisms of CDKs as well as a general overview of CDK inhibition. It also summarizes the latest research approaches and current advances in the treatment of head and neck cancer with CDK inhibitors. Instead of monotherapies, combination therapies with CDK inhibitors may especially provide promising results in tumor therapy. Indeed, recent studies have shown a synergistic effect of CDK inhibition together with chemo- and radio- and immunotherapy in cancer treatment to overcome tumor evasion, which may lead to a renaissance of CDK inhibitors.
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Affiliation(s)
- Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
| | - Daniela Schulz
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
- Center for Medical Biotechnology, Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Richard Josef Bauer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
- Center for Medical Biotechnology, Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
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