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Song Y, Wu SJ, Shen Z, Zhao D, Chan TSY, Huang H, Qiu L, Li J, Tan TD, Zhu J, Song Y, Huang WH, Zhao W, Liu HSY, Xu W, Chen N, Ma J, Chang CS, Tse EWC. Chinese expert consensus on Bruton tyrosine kinase inhibitors in the treatment of B-cell malignancies. Exp Hematol Oncol 2023; 12:92. [PMID: 37845755 PMCID: PMC10578030 DOI: 10.1186/s40164-023-00448-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/15/2023] [Indexed: 10/18/2023] Open
Abstract
Targeted therapy with Bruton tyrosine kinase (BTK) inhibitors have revolutionized the treatment of patients with various B-cell malignancies. BTK inhibitors such as ibrutinib, zanubrutinib, orelabrutinib, and acalabrutinib have shown good clinical efficacy and better safety profiles than those of traditional chemotherapy and chemoimmunotherapy regimens. Multiple studies on new BTK inhibitors are ongoing, which may provide more therapeutic options for the treatment of B-cell malignancies. Considering the unmet need of evidence on BTK inhibitors in all clinical settings and to standardize the use of BTK inhibitors available in mainland China, Taiwan, Hong Kong, and Macau regions, this consensus has been formulated for the treatment of various B-cell malignancies based on the clinical practice and available evidences on the use of BTK inhibitors. The recommendations of this consensus will provide guidance to physicians and clinical researchers on the effective treatment of B-cell malignancies with BTK inhibitors.
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Affiliation(s)
- Yuqin Song
- Peking University Cancer Hospital and Institute, Beijing, China
| | - Shang-Ju Wu
- Hematology Division, Department of Internal Medicine, National Taiwan University Hospital, Taiwan, China
| | - Zhixiang Shen
- Shanghai Jiaotong University Affiliated Ruijin Hospital, Shanghai, China
| | - Donglu Zhao
- Harbin Hematology and Oncology Institute, Heilongjiang, 150007, China
| | | | | | - Lugui Qiu
- Institute of Hematology and Blood Diseases Hospital, Tianjing, China
| | - Jianyong Li
- Jiangsu Provincial People's Hospital, Jiangsu, China
| | - Tran-der Tan
- Department of Hematology and Medical Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taiwan, China
| | - Jun Zhu
- Peking University Cancer Hospital and Institute, Beijing, China
| | - Yongping Song
- The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Wei-Han Huang
- Department of Clinical Pathology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taiwan, China
| | - Weili Zhao
- Shanghai Jiaotong University Affiliated Ruijin Hospital, Shanghai, China
| | | | - Wei Xu
- Jiangsu Provincial People's Hospital, Jiangsu, China
| | - Naizhi Chen
- Macau Society of Hematology and Oncology, Macau, China
| | - Jun Ma
- Harbin Hematology and Oncology Institute, Heilongjiang, 150007, China.
| | - Cheng-Shyong Chang
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Taiwan, China.
- Department of Healthcare Administration, Central Taiwan University of Science and Technology, Taiwan, China.
| | - Eric Wai Choi Tse
- Department of Medicine, School of Clinical Medicine, University of Hong Kong, Hong Kong, China.
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2
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Alsarhani WK, AlShaker S, Lichter M, Chan CC. Spontaneous hyphema in a patient receiving acalabrutinib. CANADIAN JOURNAL OF OPHTHALMOLOGY 2023; 58:e211-e213. [PMID: 37192737 DOI: 10.1016/j.jcjo.2023.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 04/23/2023] [Indexed: 05/18/2023]
Affiliation(s)
| | - Sara AlShaker
- University of Toronto, Toronto, ON; College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Myrna Lichter
- University of Toronto, Toronto, ON; St. Michael's Hospital, Toronto, ON
| | - Clara C Chan
- University of Toronto, Toronto, ON; St. Michael's Hospital, Toronto, ON
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3
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Evaluation of bleeding events in patients receiving acalabrutinib therapy. Leukemia 2023:10.1038/s41375-023-01869-1. [PMID: 36932166 DOI: 10.1038/s41375-023-01869-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/22/2023] [Accepted: 03/01/2023] [Indexed: 03/19/2023]
Abstract
Acalabrutinib is a next-generation, more selective, covalent Bruton tyrosine kinase inhibitor (BTKi), designed to have less toxicity, including bleeding, than the first-generation covalent BTKi ibrutinib. We performed a retrospective medical record review of 289 patients with B-cell malignancies treated with acalabrutinib to evaluate and describe bleeding events. Median acalabrutinib exposure was 40.8 months (range 0-81.6) with 83% of patients experiencing at least one bleeding event. Of these patients, 59%, 35%, and 6% had a clinically non-relevant minor, clinically relevant minor, or major bleed as their first, most severe event per ISTH criteria, respectively. For all bleed events, 24% were clinically relevant minor/major and 2.5% were CTCAE grade ≥3. Age >65, prior bleed history, and longer time on acalabrutinib therapy were found to be independent risk factors for clinically relevant minor/major bleeds. Additionally, 1263 procedures were identified, and the incidence of clinically non-relevant and clinically relevant minor/major bleeds related to procedures was 0.95% and 1.3%, respectively. In conclusion, with a long median exposure time, most bleeds were clinically non-relevant per ISTH criteria and CTCAE grade <3 for patients with B-cell malignancies treated with acalabrutinib.
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4
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Castillo JJ, Buske C, Trotman J, Sarosiek S, Treon SP. Bruton tyrosine kinase inhibitors in the management of Waldenström macroglobulinemia. Am J Hematol 2023; 98:338-347. [PMID: 36415104 PMCID: PMC10107762 DOI: 10.1002/ajh.26788] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 11/08/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022]
Abstract
Bruton tyrosine kinase (BTK) inhibitors have taken a central role in the management of patients with Waldenström macroglobulinemia and are the only agents approved by the Food and Drug Administration (FDA) to treat these patients. Although associated with high rates of durable responses, unmet needs with BTK inhibitor therapy include indefinite duration therapy, high cost, scarcity of complete responses, and lower rates and shorter duration of response in patients with CXCR4 mutations. Herein, we review the data supporting the use of covalent BTK inhibitors, selected management issues, clinical trials with covalent BTK inhibitor combination regimens, and up-and-coming non-covalent BTK inhibitors.
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Affiliation(s)
- Jorge J Castillo
- Bing Center for Waldenström Macroglobulinemia, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Christian Buske
- Comprehensive Cancer Center Ulm, Institute of Experimental Cancer Research, University Hospital Ulm, Ulm, Germany
| | - Judith Trotman
- Department of Haematology, Concord Repatriation General Hospital, Faculty of Medicine, University of Sydney, Concord, Australia
| | - Shayna Sarosiek
- Bing Center for Waldenström Macroglobulinemia, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Steven P Treon
- Bing Center for Waldenström Macroglobulinemia, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
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5
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Butelet A, Poulain S, Jeanpierre E, Srour M, Nudel M, Chauvet P, Bauters A, Susen S, Dupont A, de Charette M. Successful and safe response to ibrutinib alone in treating relapsed Waldenström macrogobulinemia and related acquired von Willebrand syndrome: an option to consider. Leuk Lymphoma 2022; 63:3100-3104. [PMID: 36528585 DOI: 10.1080/10428194.2022.2113534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ibrutinib, a first-class Bruton tyrosine kinase inhibitor, is known to be associated with adverse bleeding events and has been recently approved for the treatment of relapse Waldenström macroglobulinemia (WM). Here, we report the exhaustive clinical and biological follow-up of 2 patients treated by ibrutinib alone in the context of relapsed WM with an acquired von Willebrand syndrome (AVWS) complication. In two cases, ibrutinib has been shown to be quickly efficient and safe for treating both AVWS and its underlying condition the WM, without bleeding complications. Interestingly, ibrutinib treatment brings a rapid and extended over time normalization of von Willebrand factor clearance. These observations show that ibrutinib is a valuable therapeutic option in relapsed WM patients associated with AVWS and highlighting the need for further cohort studies with long-term follow-up of patients to confirm the efficacy and safety of a treatment by ibrutinib for WM patients with AVWS complication.
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Affiliation(s)
- Alexandre Butelet
- Hemostasis and transfusion department, Biology Pathology Center, University hospital of Lille, Lille, France
| | - Stéphanie Poulain
- Laboratory of Hematology, Biology Pathology Center, CHU of Lille, INSERM UMR-S 1177, Team 4, Cancer Research Institute, Univ. Lille, France
| | - Emmanuelle Jeanpierre
- Hemostasis and transfusion department, Biology Pathology Center, University hospital of Lille, Lille, France
| | - Micha Srour
- Service des Maladies du Sang, Centre Hospitalier Universitaire de Lille, Lille, France
| | - Morgane Nudel
- Service des Maladies du Sang, Centre Hospitalier Universitaire de Lille, Lille, France
| | - Paul Chauvet
- Service des Maladies du Sang, Centre Hospitalier Universitaire de Lille, Lille, France
| | - Anne Bauters
- Hemostasis and transfusion department, Biology Pathology Center, University hospital of Lille, Lille, France
| | - Sophie Susen
- Hemostasis and transfusion department, Biology Pathology Center, University hospital of Lille, Lille, France
| | - Annabelle Dupont
- Hemostasis and transfusion department, Biology Pathology Center, University hospital of Lille, Lille, France
| | - Marie de Charette
- Service des Maladies du Sang, Centre Hospitalier Universitaire de Lille, Lille, France.,Service d'hématologie, Centre Hospitalier Universitaire de la Réunion, Saint Denis, France
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6
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Kuss B, Nagarajan C, Hsieh WS, Cheah CY. Practical management of chronic lymphocytic leukemia with acalabrutinib. Leuk Lymphoma 2022; 63:2785-2794. [PMID: 35852229 DOI: 10.1080/10428194.2022.2098289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Treatment of chronic lymphocytic leukemia (CLL) has been transformed in the past two decades. The introduction of targeted therapies has improved patient outcomes and the deliverability of effective therapies. Making the best use of the next wave of Bruton's tyrosine kinase (BTK) inhibitors requires an understanding of the nuances that separate the drugs in this class of agents. This paper reviews the newer BTK inhibitors and provides practical guidance on the management of CLL using acalabrutinib. Acalabrutinib is a safe and efficacious BTKi in the treatment of CLL. While some side effects appear to be an "on-target" effect of BTK inhibition, the selectivity of second-generation covalent BTK inhibitors such as acalabrutinib may result in a favorable safety profile due to less off-target kinase inhibition. Acalabrutinib represents a well-tolerated and effective alternative to ibrutinib in the management of CLL.
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Affiliation(s)
- Bryone Kuss
- Molecular Medicine and Genetics, Flinders University, Adelaide, SA, Australia.,Haematology Department, Flinders Medical Centre and SA Pathology, Adelaide, SA, Australia
| | - Chandramouli Nagarajan
- Department of Haematology, Singapore General Hospital, 1 Outram Rd, Block 3 Basement, Singapore 169608, Singapore.,SingHealth DUKE-NUS Blood Cancer Center and Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Wen Son Hsieh
- ICON Cancer Centre, 1 Farrer Park Station Rd, Singapore 217562, Singapore.,Division of Hematologic Malignancies, The Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Chan Yoon Cheah
- University of Western Australia Medical School, University of Western Australia, Perth, WA, Australia.,Haematology Department, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
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7
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Elaskalani O, Gilmore G, Hagger M, Baker RI, Metharom P. Adenosine 2A Receptor Activation Amplifies Ibrutinib Antiplatelet Effect; Implications in Chronic Lymphocytic Leukemia. Cancers (Basel) 2022; 14:cancers14235750. [PMID: 36497231 PMCID: PMC9741389 DOI: 10.3390/cancers14235750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
Chronic lymphocytic leukemia patients have an increased bleeding risk with the introduction of Bruton tyrosine kinase (BTK) inhibitors. BTK is a signaling effector downstream of the platelet GPVI receptor. Innate platelet dysfunction in CLL patients and the contribution of the leukemia microenvironment to the anti-platelet effect of BTK inhibitors are still not well defined. Herein, we investigated platelet function in stable, untreated CLL patients in comparison to age-matched healthy subjects as control. Secondly, we proposed a novel mechanism of platelet dysfunction via the adenosinergic pathway during BTK inhibitor therapy. Our data indicate that the nucleotidase that produces adenosine, CD73, was expressed on one-third of B-cells in CLL patients. Inhibition of CD73 improved platelet response to ADP in the blood of CLL patients ex vivo. Using healthy platelets, we show that adenosine 2A (A2A) receptor activation amplifies the anti-platelet effect of ibrutinib (10 nM). Ibrutinib plus an A2A agonist-but not ibrutinib as a single agent-significantly inhibited collagen (10 µg/mL)-induced platelet aggregation. Mechanistically, A2A activation attenuated collagen-mediated inhibition of p-VASP and synergized with ibrutinib to inhibit the phosphorylation of AKT, ERK and SYK kinases. This manuscript highlights the potential role of adenosine generated by the microenvironment in ibrutinib-associated bleeding in CLL patients.
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Affiliation(s)
- Omar Elaskalani
- Telethon Kids Institute, Cancer Centre, Nedlands, WA 6009, Australia
- Centre for Child Health Research, University of Western Australia, Crawley, WA 6009, Australia
| | - Grace Gilmore
- Perth Blood Institute (PBI), Perth, WA 6005, Australia
- Western Australian Centre for Thrombosis and Haemostasis (WACTH), Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia
| | - Madison Hagger
- Platelet Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health and Innovation Research Institute (CHIRI), Faculty of Health Sciences, Curtin University, Bentley, WA 6102, Australia
| | - Ross I. Baker
- Perth Blood Institute (PBI), Perth, WA 6005, Australia
- Western Australian Centre for Thrombosis and Haemostasis (WACTH), Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia
- Correspondence: (R.I.B.); (P.M.)
| | - Pat Metharom
- Platelet Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health and Innovation Research Institute (CHIRI), Faculty of Health Sciences, Curtin University, Bentley, WA 6102, Australia
- Correspondence: (R.I.B.); (P.M.)
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8
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Perutelli F, Montalbano MC, Boccellato E, Coscia M, Vitale C. Beyond ibrutinib: novel BTK inhibitors for the treatment of chronic lymphocytic leukemia. Curr Opin Oncol 2022; 34:757-767. [PMID: 35993294 DOI: 10.1097/cco.0000000000000897] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF THE REVIEW Ibrutinib was the first Bruton tyrosine kinase inhibitor (BTKi) approved for clinical use, contributing to a dramatic change in the treatment landscape of chronic lymphocytic leukemia (CLL). This review provides an overview of next-generation BTKi that have been recently approved or are being investigated for the treatment of CLL, specifically highlighting differences and similarities compared to ibrutinib. RECENT FINDINGS Acalabrutinib presented comparable response rates to ibrutinib with lower rates of adverse events and is currently approved for the treatment of CLL. Zanubrutinib displayed excellent response rates with a lower incidence of BTKi-related adverse events, but major rates of neutropenia, and its approval is awaited. With the aim of overcoming drug resistance, noncovalent BTKi have been developed. Of all the explored agents to date, pirtobrutinib has shown promising results with manageable toxicities. SUMMARY For the treatment of CLL, several effective therapeutic strategies to target BTK are or will soon be available: these drugs present different safety profiles, thus making it possible to tailor the treatment choice according to patient's characteristics. Importantly, noncovalent BTKi will provide a therapeutic chance also for those relapsed/refractory CLL patients who are BTKi-resistant and are considered an unmet clinical need.
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Affiliation(s)
- Francesca Perutelli
- University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Maria Chiara Montalbano
- University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Elia Boccellato
- University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Marta Coscia
- University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Candida Vitale
- University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
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9
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Ibrutinib Inhibits Angiogenesis and Tumorigenesis in a BTK-Independent Manner. Pharmaceutics 2022; 14:pharmaceutics14091876. [PMID: 36145624 PMCID: PMC9506105 DOI: 10.3390/pharmaceutics14091876] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/31/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022] Open
Abstract
BTK inhibitor (BTKi) Ibrutinib carries an increased bleeding risk compared to more selective BTKis Acalabrutinib and Zanubrutinib, however, its impact on vascular endothelium remains unknown. In this study, we found that Ibrutinib induced stronger cytotoxic effect on endothelial cells than Zanubrutinib, however, Acalabrutinib cytotoxicity was extremely weak. RNA-seq, followed by KEGG analysis and quantitative RT-PCR validation, was conducted to identify the differential apoptotic target genes of BTKis, leading to their distinct cytotoxic effects on endothelial cells, which showed that Ibrutinib and Zanubrutinib dramatically modulated the expression of critical apoptotic genes, GADD45B, FOS, and BCL2A1, among which FOS and GADD45B were upregulated more significantly by Ibrutinib than Zanubrutinib, however, Acalabrutinib downregulated BCL2A1 moderately and was not able to modulate the expression of FOS and GADD45B. Next, we performed in vitro angiogenesis assays and found that Ibrutinib was more able to induce endothelial dysfunction than Zanubrutinib via stimulating more BMP4 expression, however, Acalabrutinib had no such effect. Especially, the capacity of Ibrutinib to induce endothelial dysfunction can be antagonized by targeting BMP4. Accordingly, Ibrutinib, as an angiogenesis inhibitor, inhibited ovarian and breast cancer progression in vivo. Collectively, our findings addressed a novel molecular basis underlying Ibrutinib-induced endothelial cell dysfunction and suggested the potential application of Ibrutinib to treat angiogenesis-dependent cancers.
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Arustamyan M, Kibrik P, Hatipoglu D, Bungo B, Mentias A, Hill BT, Moudgil R. The Safety of Bruton's Tyrosine Kinase Inhibitors in B-cell Malignancies: A Systematic Review. Eur J Haematol 2022; 109:696-710. [PMID: 36030394 DOI: 10.1111/ejh.13854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 12/01/2022]
Abstract
B-cell malignancies, most notably lymphomas, make up most of the non-Hodgkin lymphomas in the United States. There is limited randomized data comparing 1st and 2nd generation Bruton Tyrosine Kinase inhibitors. Our aim was to compare the safety profiles of 1st versus 2nd generation Bruton Tyrosine Kinase inhibitors. A systematic search was performed from database inception to January 13, 2020. Studies with Bruton Tyrosine Kinase inhibitor monotherapy for the treatment of B-cell malignancies in the adult population (> 18 years old) were utilized and the adverse events were extracted. Fifty-five studies that met the inclusion criteria were included in the systematic review with forty-one studies with 1st generation and fourteen studies with 2nd generation. The review included both clinical trials and retrospective studies with average time of follow-up of 2 years for the 1st generation group and 18 months for the 2nd generation group. We found that the incidence of cardiovascular adverse events was significantly higher in the 1st generation group (20.8%) as compared to the 2nd generation group (6.3%). However, there was a higher incidence of hematologic/oncologic and gastrointestinal side effects in the 2nd generation group compared to the 1st (62.3% compared to 39.2% and 36.9% compare to 28.9%). The number of Grade 5 cardiovascular events (death) were same in the 1st generation group compared to the 2nd generation. Further research is needed to develop highly selective Bruton Tyrosine Kinase inhibitors to avoid unwanted adverse events by minimizing off-targets. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Michael Arustamyan
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology
| | - Pavel Kibrik
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology
| | - Dilara Hatipoglu
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology
| | - Brandon Bungo
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology.,Taussig Cancer Institute and Case Comprehensive Cancer Center, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH
| | - Amgad Mentias
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology
| | - Brian T Hill
- Taussig Cancer Institute and Case Comprehensive Cancer Center, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH
| | - Rohit Moudgil
- Section of Clinical Cardiology, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Section of Leukemia/Lymphoma, Department of Hematology and Medical Oncology
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11
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International Consensus Statement on the Management of Cardiovascular Risk of Bruton's Tyrosine Kinase Inhibitors in CLL. Blood Adv 2022; 6:5516-5525. [PMID: 35790105 DOI: 10.1182/bloodadvances.2022007938] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/01/2022] [Indexed: 11/20/2022] Open
Abstract
Bruton's tyrosine kinase inhibitors (BTKis) have altered the treatment landscape for chronic lymphocytic leukemia (CLL) by offering effective and well-tolerated therapeutic options. However, since the approval of ibrutinib, concern has risen regarding the risk of cardiovascular (CV) adverse events including atrial fibrillation (AF), hypertension, and heart failure. Newer BTKis appear to have lower cardiovascular risks, but data are limited. It is important to understand the risks posed by BTKis and how those risks interact with individual patients, and we convened a panel of physicians with expertise in CLL and cardiovascular toxicities in oncology to develop evidence-based consensus recommendations for community hematologists and oncologists. Care providers should thoroughly assess a patient's cardiovascular risk level before treatment initiation including established cardiovascular diseases and risk factors and performing investigations, dependent on pre-existing diseases and risk factors, including an electrocardiogram (ECG). For patients with high CV risk, BTKi treatment is often appropriate in consultation with a multidisciplinary team (MDT), and more selective BTKis including acalabrutinib and zanubrutinib are preferred. BTKi treatment should generally be avoided in patients with a history of heart failure. Ibrutinib should be avoided in patients with a history of ventricular arrhythmias, but the risk of newer drugs is not yet known. Finally, an MDT is crucial to help manage emerging toxicities with the goal of maintaining BTKi therapy, if possible. Optimizing heart failure, arrhythmia, and hypertension control will likely improve tolerance and maintenance of BTKi therapy. However, additional studies are needed to identify the most optimal strategy for these drugs.
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12
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BTK Inhibitors Impair Platelet-Mediated Antifungal Activity. Cells 2022; 11:cells11061003. [PMID: 35326454 PMCID: PMC8947638 DOI: 10.3390/cells11061003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 01/27/2023] Open
Abstract
In recent years, the introduction of new drugs targeting Bruton’s tyrosine kinase (BTK) has allowed dramatic improvement in the prognosis of patients with chronic lymphocytic leukemia (CLL) and other B-cell neoplasms. Although these small molecules were initially considered less immunosuppressive than chemoimmunotherapy, an increasing number of reports have described the occurrence of unexpected opportunistic fungal infections, in particular invasive aspergillosis (IA). BTK represents a crucial molecule in several signaling pathways depending on different immune receptors. Based on a variety of specific off-target effects on innate immunity, namely on neutrophils, monocytes, pulmonary macrophages, and nurse-like cells, ibrutinib has been proposed as a new host factor for the definition of probable invasive pulmonary mold disease. The role of platelets in the control of fungal growth, through granule-dependent mechanisms, was described in vitro almost two decades ago and is, so far, neglected by experts in the field of clinical management of IA. In the present study, we confirm the antifungal role of platelets, and we show, for the first time, that the exposure to BTK inhibitors impairs several immune functions of platelets in response to Aspergillus fumigatus, i.e., the ability to adhere to conidia, activation (as indicated by reduced expression of P-selectin), and direct killing activity. In conclusion, our experimental data suggest that antiplatelet effects of BTK inhibitors may contribute to an increased risk for IA in CLL patients.
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13
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Vitale C, Gibbons JL, Ferrajoli A. Targeted Treatment of Chronic Lymphocytic Leukemia: Clinical Utility of Acalabrutinib. Onco Targets Ther 2022; 14:5507-5519. [PMID: 35002256 PMCID: PMC8721287 DOI: 10.2147/ott.s303060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/15/2021] [Indexed: 12/21/2022] Open
Abstract
In chronic lymphocytic leukemia (CLL), a deeper understanding of the disease biology led over the last decade to the development and clinical use of different targeted drugs, including Bruton tyrosine kinase (BTK) inhibitors. The first BTK inhibitor approved for clinical use is ibrutinib, which showed excellent efficacy and good tolerability. More recently, the interest is growing for novel more selective BTK inhibitors that may reduce the off-target effects of the drug, thus minimizing side effects and subsequent treatment interruptions or discontinuations. Acalabrutinib is an orally administered irreversible BTK inhibitor, characterized by the lack of inhibition towards other kinases. In this review, we present the most recent data from clinical trials on the clinical efficacy of acalabrutinib and acalabrutinib-based combinations for the treatment of patients with relapsed/refractory and treatment-naïve CLL. We delineate the safety profile of the drug, describe side effects of interest and discuss the clinical management of patients receiving acalabrutinib. Due to its efficacy and the favorable safety profile, acalabrutinib has emerged as a viable therapy option in the current landscape of multiple approved treatments for CLL.
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Affiliation(s)
- Candida Vitale
- Department of Molecular Biotechnology and Health Sciences, University of Torino and University Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy
| | - Jamie Lynn Gibbons
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alessandra Ferrajoli
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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14
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Naylor-Adamson L, Chacko AR, Booth Z, Caserta S, Jarvis J, Khan S, Hart SP, Rivero F, Allsup DJ, Arman M. Bruton's Tyrosine Kinase Inhibitors Impair FcγRIIA-Driven Platelet Responses to Bacteria in Chronic Lymphocytic Leukemia. Front Immunol 2021; 12:766272. [PMID: 34912339 PMCID: PMC8667317 DOI: 10.3389/fimmu.2021.766272] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 10/25/2021] [Indexed: 01/01/2023] Open
Abstract
Bacterial infections are a major cause of morbidity and mortality in chronic lymphocytic leukemia (CLL), and infection risk increases in patients treated with the Bruton’s tyrosine kinase (Btk) inhibitor, ibrutinib. Btk and related kinases (like Tec) are expressed in non-leukemic hematopoietic cells and can be targeted by ibrutinib. In platelets, ibrutinib therapy is associated with bleeding complications mostly due to off-target effects. But the ability of platelets to respond to bacteria in CLL, and the potential impact of ibrutinib on platelet innate immune functions remain unknown. FcγRIIA is a tyrosine kinase-dependent receptor critical for platelet activation in response to IgG-coated pathogens. Crosslinking of this receptor with monoclonal antibodies causes downstream activation of Btk and Tec in platelets, however, this has not been investigated in response to bacteria. We asked whether ibrutinib impacts on FcγRIIA-mediated activation of platelets derived from CLL patients and healthy donors after exposure to Staphylococcus aureus Newman and Escherichia coli RS218. Platelet aggregation, α-granule secretion and integrin αIIbβ3-dependent scavenging of bacteria were detected in CLL platelets but impaired in platelets from ibrutinib-treated patients and in healthy donor-derived platelets exposed to ibrutinib in vitro. While levels of surface FcγRIIA remained unaffected, CLL platelets had reduced expression of integrin αIIbβ3 and GPVI compared to controls regardless of therapy. In respect of intracellular signaling, bacteria induced Btk and Tec phosphorylation in both CLL and control platelets that was inhibited by ibrutinib. To address if Btk is essential for platelet activation in response to bacteria, platelets derived from X-linked agammaglobulinemia patients (lacking functional Btk) were exposed to S. aureus Newman and E. coli RS218, and FcγRIIA-dependent aggregation was observed. Our data suggest that ibrutinib impairment of FcγRIIA-mediated platelet activation by bacteria results from a combination of Btk and Tec inhibition, although off-target effects on additional kinases cannot be discarded. This is potentially relevant to control infection-risk in CLL patients and, thus, future studies should carefully evaluate the effects of CLL therapies, including Btk inhibitors with higher specificity for Btk, on platelet-mediated immune functions.
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Affiliation(s)
- Leigh Naylor-Adamson
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Anisha R Chacko
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Zoe Booth
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Stefano Caserta
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Jenna Jarvis
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Sujoy Khan
- Department of Immunology & Allergy, Queens Centre, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, Cottingham, United Kingdom
| | - Simon P Hart
- Respiratory Research Group, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - Francisco Rivero
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
| | - David J Allsup
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom.,Department of Haematology, Queens Centre for Oncology and Haematology, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, Cottingham, United Kingdom
| | - Mònica Arman
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Faculty of Health Sciences, University of Hull, Hull, United Kingdom
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15
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Huang J, Huang X, Li Y, Li X, Wang J, Li F, Yan X, Wang H, Wang Y, Lin X, Tu J, He D, Ye W, Yang M, Jin J. Abivertinib inhibits megakaryocyte differentiation and platelet biogenesis. Front Med 2021; 16:416-428. [PMID: 34792736 DOI: 10.1007/s11684-021-0838-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 11/24/2020] [Indexed: 11/25/2022]
Abstract
Abivertinib, a third-generation tyrosine kinase inhibitor, is originally designed to target epidermal growth factor receptor (EGFR)-activating mutations. Previous studies have shown that abivertinib has promising antitumor activity and a well-tolerated safety profile in patients with non-small-cell lung cancer. However, abivertinib also exhibited high inhibitory activity against Bruton's tyrosine kinase and Janus kinase 3. Given that these kinases play some roles in the progression of megakaryopoiesis, we speculate that abivertinib can affect megakaryocyte (MK) differentiation and platelet biogenesis. We treated cord blood CD34+ hematopoietic stem cells, Meg-01 cells, and C57BL/6 mice with abivertinib and observed megakaryopoiesis to determine the biological effect of abivertinib on MK differentiation and platelet biogenesis. Our in vitro results showed that abivertinib impaired the CFU-MK formation, proliferation of CD34+ HSC-derived MK progenitor cells, and differentiation and functions of MKs and inhibited Meg-01-derived MK differentiation. These results suggested that megakaryopoiesis was inhibited by abivertinib. We also demonstrated in vivo that abivertinib decreased the number of MKs in bone marrow and platelet counts in mice, which suggested that thrombopoiesis was also inhibited. Thus, these preclinical data collectively suggested that abivertinib could inhibit MK differentiation and platelet biogenesis and might be an agent for thrombocythemia.
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Affiliation(s)
- Jiansong Huang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China. .,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China.
| | - Xin Huang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yang Li
- Department of Obstetrics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xia Li
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jinghan Wang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Fenglin Li
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xiao Yan
- Department of Hematology, Qingdao Municipal Hospital, Qingdao, 266000, China
| | - Huanping Wang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yungui Wang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xiangjie Lin
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jifang Tu
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Daqiang He
- Department of Laboratory Medicine, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Wenle Ye
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Min Yang
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Institute of Hematology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jie Jin
- Department of Hematology, Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China. .,Cancer Center, Zhejiang University, Hangzhou, 310058, China.
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16
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O’Brien SM, Brown JR, Byrd JC, Furman RR, Ghia P, Sharman JP, Wierda WG. Monitoring and Managing BTK Inhibitor Treatment-Related Adverse Events in Clinical Practice. Front Oncol 2021; 11:720704. [PMID: 34858810 PMCID: PMC8630614 DOI: 10.3389/fonc.2021.720704] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Bruton tyrosine kinase (BTK) inhibitors represent an important therapeutic advancement for B cell malignancies. Ibrutinib, the first-in-class BTK inhibitor, is approved by the US FDA to treat patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), and mantle cell lymphoma (MCL; after ≥1 prior therapy); and by the European Medicines Agency (EMA) for adult patients with relapsed/refractory (R/R) MCL and patients with CLL. Ibrutinib treatment can be limited by adverse events (AEs) including atrial fibrillation, arthralgias, rash, diarrhea, and bleeding events, leading to drug discontinuation in 4%-26% of patients. Acalabrutinib, a second-generation BTK inhibitor, is approved by the FDA to treat adult patients with CLL/SLL or MCL (relapsed after 1 prior therapy); and by the EMA to treat adult patients with CLL or R/R MCL. The most common AE associated with acalabrutinib is headache of limited duration, which occurs in 22%-51% of patients, and is mainly grade 1-2 in severity, with only 1% of patients experiencing grade ≥3 headache. Furthermore, acalabrutinib is associated with a low incidence of atrial fibrillation. Zanubrutinib, a selective next-generation covalent BTK inhibitor, is approved by the FDA to treat adult patients with MCL who have received ≥1 prior therapy, and is under investigation for the treatment of patients with CLL. In the phase 3 SEQUOIA trial in patients with CLL, the most common grade ≥3 AEs were neutropenia/neutrophil count decreased and infections. This review provides an overview of BTK inhibitor-related AEs in patients with CLL, and strategies for their management.
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Affiliation(s)
- Susan M. O’Brien
- Chao Family Comprehensive Cancer Center, University of California, Orange, CA, United States
| | - Jennifer R. Brown
- Chronic Lymphocytic Leukemia (CLL) Center, Dana-Farber Cancer Institute, Boston, MA, United States
| | - John C. Byrd
- James Cancer Hospital and Solove Research Institute, The Ohio State University Comprehensive Cancer Center and Division of Hematology, Columbus, OH, United States
| | - Richard R. Furman
- Chronic Lymphocytic Leukemia (CLL) Research Center, New York-Presbyterian/Weill Cornell Medical Center, New York, NY, United States
| | - Paolo Ghia
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milano, Italy
| | - Jeff P. Sharman
- Division of Hematology Research for US Oncology, Willamette Valley Cancer Institute/US Oncology, Eugene, OR, United States
| | - William G. Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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17
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Pooled safety analysis of zanubrutinib monotherapy in patients with B-cell malignancies. Blood Adv 2021; 6:1296-1308. [PMID: 34724705 PMCID: PMC8864647 DOI: 10.1182/bloodadvances.2021005621] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/04/2021] [Indexed: 11/20/2022] Open
Abstract
Pooled safety data from zanubrutinib monotherapy studies in B-cell malignancies are consistent with the toxicity profile of BTK inhibitors. Zanubrutinib exhibits a lower incidence of atrial fibrillation and hypertension than previously reported with ibrutinib.
Zanubrutinib is a selective Bruton tyrosine kinase (BTK) inhibitor evaluated in multiple B-cell malignancy studies. We constructed a pooled safety analysis to better understand zanubrutinib-associated treatment-emergent adverse events (TEAEs) and identify treatment-limiting toxicities. Data were pooled from 6 studies (N = 779). Assessments included type, incidence, severity, and outcome of TEAEs. Median age was 65 years; 20% were ≥75 years old. Most patients had Waldenström macroglobulinemia (33%), chronic lymphocytic leukemia/small lymphocytic lymphoma (29%), or mantle-cell lymphoma (19%). Median treatment duration was 26 months (range, 0.1-65); 16% of patients were treated for ≥3 years. Common nonhematologic TEAEs were upper respiratory tract infection (URI, 39%), rash (27%), bruising (25%), musculoskeletal pain (24%), diarrhea (23%), cough (21%), pneumonia (21%), urinary tract infection (UTI), and fatigue (15% each). Most common grade ≥3 TEAEs were pneumonia (11%), hypertension (5%), URI, UTI, sepsis, diarrhea, and musculoskeletal pain (2% each). Atrial fibrillation and major hemorrhage occurred in 3% and 4% of patients, respectively. Atrial fibrillation, hypertension, and diarrhea occurred at lower rates than those reported historically for ibrutinib. Grade ≥3 adverse events included neutropenia (23%), thrombocytopenia (8%), and anemia (8%). Serious TEAEs included pneumonia (11%), sepsis (2%), and pyrexia (2%).Treatment discontinuations and dose reductions for adverse events occurred in 10% and 8% of patients, respectively. Thirty-nine patients (4%) had fatal TEAEs, including pneumonia (n = 9), sepsis (n = 4), unspecified cause (n = 4), and multiple organ dysfunction syndrome (n = 5). This analysis demonstrates that zanubrutinib is generally well tolerated with a safety profile consistent with known BTK inhibitor toxicities; these were manageable and mostly reversible.
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18
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Tullemans BM, Karel MF, Léopold V, ten Brink MS, Baaten CC, Maas SL, de Vos AF, Eble JA, Nijziel MR, van der Vorst EP, Cosemans JM, Heemskerk JW, Claushuis TA, Kuijpers MJ. Comparison of inhibitory effects of irreversible and reversible Btk inhibitors on platelet function. EJHAEM 2021; 2:685-699. [PMID: 35845214 PMCID: PMC9175945 DOI: 10.1002/jha2.269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/13/2021] [Accepted: 07/13/2021] [Indexed: 12/11/2022]
Abstract
All irreversible Bruton tyrosine kinase (Btk) inhibitors including ibrutinib and acalabrutinib induce platelet dysfunction and increased bleeding risk. New reversible Btk inhibitors were developed, like MK-1026. The mechanism underlying increased bleeding tendency with Btk inhibitors remains unclear. We investigated the effects of ibrutinib, acalabrutinib and MK-1026 on platelet function in healthy volunteers, patients and Btk-deficient mice, together with off-target effects on tyrosine kinase phosphorylation. All inhibitors suppressed GPVI- and CLEC-2-mediated platelet aggregation, activation and secretion in a dose-dependent manner. Only ibrutinib inhibited thrombus formation on vWF-co-coated surfaces, while on collagen this was not affected. In blood from Btk-deficient mice, collagen-induced thrombus formation under flow was reduced, but preincubation with either inhibitor was without additional effects. MK-1026 showed less off-target effects upon GPVI-induced TK phosphorylation as compared to ibrutinib and acalabrutinib. In ibrutinib-treated patients, GPVI-stimulated platelet activation, and adhesion on vWF-co-coated surfaces were inhibited, while CLEC-2 stimulation induced variable responses. The dual inhibition of GPVI and CLEC-2 signalling by Btk inhibitors might account for the increased bleeding tendency, with ibrutinib causing more high-grade bleedings due to additional inhibition of platelet-vWF interaction. As MK-1026 showed less off-target effects and only affected activation of isolated platelets, it might be promising for future treatment.
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Affiliation(s)
- Bibian M.E. Tullemans
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Mieke F.A. Karel
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Valentine Léopold
- Center for Experimental and Molecular MedicineAmsterdam University Medical Centres, Academic Medical CentreUniversity of AmsterdamAmsterdamThe Netherlands
- Hopital LariboisiereDepartment of Anaesthesiology and Critical CareParisFrance
| | - Marieke S. ten Brink
- Center for Experimental and Molecular MedicineAmsterdam University Medical Centres, Academic Medical CentreUniversity of AmsterdamAmsterdamThe Netherlands
| | - Constance C.F.M.J. Baaten
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
- Institute for Molecular Cardiovascular Research (IMCAR)University Hospital AachenAachenGermany
| | - Sanne L. Maas
- Institute for Molecular Cardiovascular Research (IMCAR)University Hospital AachenAachenGermany
- Interdisciplinary Center for Clinical Research (IZKF)RWTH Aachen UniversityAachenGermany
| | - Alex F. de Vos
- Center for Experimental and Molecular MedicineAmsterdam University Medical Centres, Academic Medical CentreUniversity of AmsterdamAmsterdamThe Netherlands
| | - Johannes A. Eble
- Institute of Physiological Chemistry and PathobiochemistryUniversity of MünsterMünsterGermany
| | - Marten R. Nijziel
- Department of HaematologyCatharina Hospital EindhovenEindhovenThe Netherlands
| | - Emiel P.C. van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR)University Hospital AachenAachenGermany
- Interdisciplinary Center for Clinical Research (IZKF)RWTH Aachen UniversityAachenGermany
- Department of PathologyCardiovascular Research Institute Maastricht (CARIM)Maastricht University Medical CentreMaastrichtNetherlands
- Institute for Cardiovascular Prevention (IPEK)Ludwig‐Maximilians‐University MunichMunichGermany
| | - Judith M.E.M. Cosemans
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Johan W.M. Heemskerk
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | | | - Marijke J.E. Kuijpers
- Department of BiochemistryCardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
- Thrombosis Expertise Centre, Heart and Vascular CentreMaastricht University Medical CentreMaastrichtThe Netherlands
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19
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Zhu S, Gokhale S, Jung J, Spirollari E, Tsai J, Arceo J, Wu BW, Victor E, Xie P. Multifaceted Immunomodulatory Effects of the BTK Inhibitors Ibrutinib and Acalabrutinib on Different Immune Cell Subsets - Beyond B Lymphocytes. Front Cell Dev Biol 2021; 9:727531. [PMID: 34485307 PMCID: PMC8414982 DOI: 10.3389/fcell.2021.727531] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/26/2021] [Indexed: 12/24/2022] Open
Abstract
The clinical success of the two BTK inhibitors, ibrutinib and acalabrutinib, represents a major breakthrough in the treatment of chronic lymphocytic leukemia (CLL) and has also revolutionized the treatment options for other B cell malignancies. Increasing evidence indicates that in addition to their direct effects on B lymphocytes, both BTK inhibitors also directly impact the homeostasis, phenotype and function of many other cell subsets of the immune system, which contribute to their high efficacy as well as adverse effects observed in CLL patients. In this review, we attempt to provide an overview on the overlapping and differential effects of ibrutinib and acalabrutinib on specific receptor signaling pathways in different immune cell subsets other than B cells, including T cells, NK cells, monocytes, macrophages, granulocytes, myeloid-derived suppressor cells, dendritic cells, osteoclasts, mast cells and platelets. The shared and distinct effects of ibrutinib versus acalabrutinib are mediated through BTK-dependent and BTK-independent mechanisms, respectively. Such immunomodulatory effects of the two drugs have fueled myriad explorations of their repurposing opportunities for the treatment of a wide variety of other human diseases involving immune dysregulation.
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Affiliation(s)
- Sining Zhu
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Samantha Gokhale
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Jaeyong Jung
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Eris Spirollari
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Jemmie Tsai
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Johann Arceo
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Ben Wang Wu
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Eton Victor
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, United States
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20
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Rogers KA, Thompson PA, Allan JN, Coleman M, Sharman JP, Cheson BD, Jones D, Izumi R, Frigault MM, Quah C, Raman RK, Patel P, Wang MH, Kipps TJ. Phase II study of acalabrutinib in ibrutinib-intolerant patients with relapsed/refractory chronic lymphocytic leukemia. Haematologica 2021; 106:2364-2373. [PMID: 33730844 PMCID: PMC8409022 DOI: 10.3324/haematol.2020.272500] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Indexed: 01/01/2023] Open
Abstract
B-cell receptor signaling inhibition by targeting Bruton tyrosine kinase (BTK) is effective in treating chronic lymphocytic leukemia. The BTK inhibitor ibrutinib may be intolerable for some patients. Acalabrutinib is a more selective BTK inhibitor that may be better tolerated by patients who are intolerant to ibrutinib. A phase II study of acalabrutinib was conducted in patients with relapsed/refractory chronic lymphocytic leukemia who were ibrutinib-intolerant and had continued disease activity. Intolerance was defined as having discontinued ibrutinib due to persistent grade 3/4 adverse events or persistent/recurrent grade 2 adverse events despite dose modification/interruption. Patients received oral acalabrutinib 100 mg twice daily until disease progression or intolerance. Sixty patients were treated. The overall response rate to acalabrutinib was 73% and three patients (5%) achieved complete remission. At a median follow-up of 35 months, the median progression-free and overall survival were not reached; 24-month estimates were 72% and 81%, respectively. The most frequent adverse events with acalabrutinib were diarrhea (53%), headache (42%), contusion (40%), dizziness (33%), upper respiratory tract infection (33%), and cough (30%). The most common reasons for acalabrutinib discontinuation were progressive disease (23%) and adverse events (17%). Most patients with baseline samples (49/52; 94%) and all with on-treatment samples (3/3; 100%) had no detectable BTK and/or PLCG2 mutations. Acalabrutinib is effective and tolerable in most patients with relapsed/refractory chronic lymphocytic leukemia who are intolerant of ibrutinib. Acalabrutinib may be useful for patients who may benefit from BTK inhibitor therapy but are ibrutinib intolerant. ClinicalTrials.gov identifier: NCT02717611.
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21
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Clark JC, Damaskinaki FN, Cheung YFH, Slater A, Watson SP. Structure-function relationship of the platelet glycoprotein VI (GPVI) receptor: does it matter if it is a dimer or monomer? Platelets 2021; 32:724-732. [PMID: 33634725 DOI: 10.1080/09537104.2021.1887469] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 10/22/2022]
Abstract
GPVI is a critical signaling receptor responsible for collagen-induced platelet activation and a promising anti-thrombotic target in conditions such as coronary artery thrombosis, ischemic stroke, and atherothrombosis. This is due to the ability to block GPVI while having minimal effects on hemostasis, making it a more attractive target over current dual-antiplatelet therapy (DAPT) with acetyl salicylic acid and P2Y12 inhibitors where bleeding can be a problem. Our current understanding of how the structure of GPVI relates to function is inadequate and recent studies contradict each other. In this article, we summarize the structure-function relationships underlying the activation of GPVI by its major ligands, including collagen, fibrin(ogen), snake venom toxins and charged exogenous ligands such as diesel exhaust particles. We argue that contrary to popular belief dimerization of GPVI is not required for binding to collagen but serves to facilitate binding through increased avidity, and that GPVI is expressed as a mixture of monomers and dimers on resting platelets, with binding of multivalent ligands inducing higher order clustering.
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Affiliation(s)
- Joanne C Clark
- Institute of Cardiovascular Sciences, Level 1 IBR, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Centre of Membrane Proteins and Receptors (COMPARE), The Universities of Birmingham and Nottingham, The Midlands, UK
| | - Foteini-Nafsika Damaskinaki
- Institute of Cardiovascular Sciences, Level 1 IBR, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Centre of Membrane Proteins and Receptors (COMPARE), The Universities of Birmingham and Nottingham, The Midlands, UK
- School of Pharmacy, Biodiscovery Institute, University Park, University of Nottingham, Nottingham, UK
| | - Yam Fung Hilaire Cheung
- Institute of Cardiovascular Sciences, Level 1 IBR, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Department of Bioanalytics, Leibniz-Institut Für Analytische Wissenschaften - ISAS -e.v, Dortmund, Germany
| | - Alexandre Slater
- Institute of Cardiovascular Sciences, Level 1 IBR, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Steve P Watson
- Institute of Cardiovascular Sciences, Level 1 IBR, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Centre of Membrane Proteins and Receptors (COMPARE), The Universities of Birmingham and Nottingham, The Midlands, UK
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22
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Ahn IE, Brown JR. Targeting Bruton's Tyrosine Kinase in CLL. Front Immunol 2021; 12:687458. [PMID: 34248972 PMCID: PMC8261291 DOI: 10.3389/fimmu.2021.687458] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/18/2021] [Indexed: 01/19/2023] Open
Abstract
Targeting the B-cell receptor signaling pathway through BTK inhibition proved to be effective for the treatment of chronic lymphocytic leukemia (CLL) and other B-cell lymphomas. Covalent BTK inhibitors (BTKis) led to an unprecedented improvement in outcome in CLL, in particular for high-risk subgroups with TP53 aberration and unmutated immunoglobulin heavy-chain variable-region gene (IGHV). Ibrutinib and acalabrutinib are approved by the US Food and Drug Administration for the treatment of CLL and other B-cell lymphomas, and zanubrutinib, for patients with mantle cell lymphoma. Distinct target selectivity of individual BTKis confer differences in target-mediated as well as off-target adverse effects. Disease progression on covalent BTKis, driven by histologic transformation or selective expansion of BTK and PLCG2 mutated CLL clones, remains a major challenge in the field. Fixed duration combination regimens and reversible BTKis with non-covalent binding chemistry hold promise for the prevention and treatment of BTKi-resistant disease.
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Affiliation(s)
- Inhye E Ahn
- Lymphoid Malignancies Section, National Heart, Lung, and Blood Institute, Bethesda, MD, United States
| | - Jennifer R Brown
- Chronic Lymphocytic Leukemia Center, Division of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, United States
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Fleming MR, Xiao L, Jackson KD, Beckman JA, Barac A, Moslehi JJ. Vascular Impact of Cancer Therapies: The Case of BTK (Bruton Tyrosine Kinase) Inhibitors. Circ Res 2021; 128:1973-1987. [PMID: 34110908 PMCID: PMC10185355 DOI: 10.1161/circresaha.121.318259] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Novel targeted cancer therapies have revolutionized oncology therapies, but these treatments can have cardiovascular complications, which include heterogeneous cardiac, metabolic, and vascular sequelae. Vascular side effects have emerged as important considerations in both cancer patients undergoing active treatment and cancer survivors. Here, we provide an overview of vascular effects of cancer therapies, focusing on small-molecule kinase inhibitors and specifically inhibitors of BTK (Bruton tyrosine kinase), which have revolutionized treatment and prognosis for B-cell malignancies. Cardiovascular side effects of BTK inhibitors include atrial fibrillation, increased risk of bleeding, and hypertension, with the former 2 especially providing a treatment challenge for the clinician. Cardiovascular complications of small-molecule kinase inhibitors can occur through either on-target (targeting intended target kinase) or off-target kinase inhibition. We will review these concepts and focus on the case of BTK inhibitors, highlight the emerging data suggesting an off-target effect that may provide insights into development of arrhythmias, specifically atrial fibrillation. We believe that cardiac and vascular sequelae of novel targeted cancer therapies can provide insights into human cardiovascular biology.
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Affiliation(s)
- Matthew R Fleming
- Division of Cardiovascular Medicine (M.R.F., J.A.B., J.J.M.), Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ling Xiao
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston (L.X.)
| | - Klarissa D Jackson
- UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill (K.D.J.)
| | - Joshua A Beckman
- Division of Cardiovascular Medicine (M.R.F., J.A.B., J.J.M.), Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ana Barac
- Georgetown University and MedStar Heart and Vascular Institute, MedStar Washing Hospital Center, DC (A.B.)
| | - Javid J Moslehi
- Division of Cardiovascular Medicine (M.R.F., J.A.B., J.J.M.), Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Cardio-Oncology Program (J.J.M.), Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
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Abbas HA, Wierda WG. Acalabrutinib: A Selective Bruton Tyrosine Kinase Inhibitor for the Treatment of B-Cell Malignancies. Front Oncol 2021; 11:668162. [PMID: 34055635 PMCID: PMC8162209 DOI: 10.3389/fonc.2021.668162] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/19/2021] [Indexed: 01/21/2023] Open
Abstract
Bruton tyrosine kinase (BTK) is a validated target for treatment of B-cell malignancies, and oral inhibitors of BTK have emerged as a standard of care for these diseases. Acalabrutinib is a second generation, highly selective, potent, covalent BTK inhibitor that exhibits minimal off-target activity in in vitro assays, providing the potential to improve tolerability over the first-in-class BTK inhibitor, ibrutinib. Acalabrutinib was approved for the treatment of relapsed/refractory mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL) in the US in 2017 and 2019, respectively. Acalabrutinib is also undergoing trials for other B-cell malignancies, both as monotherapy and in combinations. In this review, we discuss results from clinical trials evaluating the efficacy and safety of acalabrutinib in patients with CLL, MCL, and Waldenstrom's macroglobulinemia. Recent phase 3 data showed that acalabrutinib improved progression-free survival (PFS) compared with rituximab plus idelalisib or rituximab plus bendamustine in patients with relapsed/refractory CLL, and acalabrutinib with or without obinutuzumab improved PFS compared with chlorambucil plus obinutuzumab in patients with treatment-naïve CLL. Overall, acalabrutinib had a tolerable safety profile, with most adverse events being grade 1/2 severity (most commonly headache and diarrhea) and a low rate of discontinuation due to adverse events.
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Affiliation(s)
- Hussein A. Abbas
- Division of Cancer Medicine, Medical Oncology Fellowship, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - William G. Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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25
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Imbruvica (Ibrutinib) induced subcutaneous hematoma: A case report. CURRENT PROBLEMS IN CANCER: CASE REPORTS 2021. [DOI: 10.1016/j.cpccr.2021.100067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Affiliation(s)
- Bernard Payrastre
- INSERM U1048 and Université Toulouse III Paul Sabatier; Laboratoire d'Hématologie, CHU de Toulouse, Toulouse Cedex 03.
| | - Agnès Ribes
- INSERM U1048 and Université Toulouse III Paul Sabatier; Laboratoire d'Hématologie, CHU de Toulouse, Toulouse Cedex 03
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Series J, Ribes A, Garcia C, Souleyreau P, Bauters A, Morschhauser F, Jürgensmeier JM, Sié P, Ysebaert L, Payrastre B. Effects of novel Btk and Syk inhibitors on platelet functions alone and in combination in vitro and in vivo. J Thromb Haemost 2020; 18:3336-3351. [PMID: 32926549 DOI: 10.1111/jth.15098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/25/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Inhibitors of tyrosine kinases downstream of the B-cell receptor, such as Bruton's tyrosine kinase (Btk) or Spleen tyrosine kinase (Syk), used alone or in combination are new therapeutic options in the treatment of B-cell malignancies. A challenge in the development of second-generation Btk inhibitors is to limit their side effects such as the increased bleeding risk. Considering the pivotal role of Syk in immunoreceptor tyrosine-based activation motif mediated platelet signaling, the impact of inhibiting this kinase on platelet functions is also worth analyzing. OBJECTIVES We investigated the effect of a novel Btk inhibitor, tirabrutinib, and a Syk inhibitor, entospletinib, alone and in combination on platelet signaling and functions in vitro and ex vivo. METHODS Platelet aggregation, secretion, and signaling responses as well as thrombus growth under flow were analyzed in the presence of the inhibitors alone or in combination in vitro, at clinically relevant doses, and ex vivo in patients treated with these inhibitors in the context of a phase I trial. RESULTS Although tirabrutinib alone had modest effects on platelet activation in vitro and ex vivo, entospletinib alone efficiently inhibited washed platelet aggregation in response to collagen. However, entospletinib weakly affected platelet activation in platelet-rich plasma, in whole blood and ex vivo. Importantly, the combination of tirabrutinib and entospletinib induced a significant decrease in platelet response to collagen in vitro and ex vivo correlating with mild bleedings reported in some of the treated patients. CONCLUSION These new results should contribute to improve the safety of these targeted therapies.
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Affiliation(s)
- Jennifer Series
- Inserm, U1048, Université Toulouse 3, I2MC, Toulouse Cedex 04, France
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
| | - Agnès Ribes
- Inserm, U1048, Université Toulouse 3, I2MC, Toulouse Cedex 04, France
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
| | - Cédric Garcia
- Inserm, U1048, Université Toulouse 3, I2MC, Toulouse Cedex 04, France
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
| | - Pierre Souleyreau
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
| | - Anne Bauters
- Institut d'hématologie-transfusion, Laboratoire d'hémostase, CHU Lille, Lille, France
| | | | | | - Pierre Sié
- Inserm, U1048, Université Toulouse 3, I2MC, Toulouse Cedex 04, France
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
| | - Loïc Ysebaert
- Service d'Hématologie IUCT-oncopôle, Toulouse Cedex 09, France
| | - Bernard Payrastre
- Inserm, U1048, Université Toulouse 3, I2MC, Toulouse Cedex 04, France
- Laboratoire d'Hématologie CHU de Toulouse, Toulouse Cedex 04, France
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Sibaud V, Beylot-Barry M, Protin C, Vigarios E, Recher C, Ysebaert L. Dermatological Toxicities of Bruton's Tyrosine Kinase Inhibitors. Am J Clin Dermatol 2020; 21:799-812. [PMID: 32613545 DOI: 10.1007/s40257-020-00535-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of Bruton's tyrosine kinase (BTK) inhibitors represents a major breakthrough in the treatment of chronic lymphocytic leukemia and other B cell malignancies. The first-generation inhibitor ibrutinib works by covalent irreversible binding to BTK, a non-receptor tyrosine kinase of the TEC (transient erythroblastopenia of childhood) family that plays a critical role in the B-cell receptor signaling pathway. It also induces an 'off-target' inhibition of a range of other kinases including (but not limited to) epidermal growth factor receptor (EGFR), SRC, and other kinases of the TEC family (interleukin-2-inducible T-cell kinase [ITK], Tec, BMX). Dermatological toxicities are among the most common toxicities of ibrutinib, but remain of mild to moderate intensity in most cases and are readily manageable. Their incidence is highest during the first year of treatment and declines over time. In addition, it has been postulated that ibrutinib-related dermatologic adverse events are mediated by the direct binding to both BTK and other 'off-target' kinases. Bruising, ecchymoses, and petechiae represent the most characteristic dermatologic adverse events. Nail and hair changes are also common, as skin infections (opportunistic infections including herpes simplex and herpes zoster virus reactivations, and Staphylococcus aureus superinfection), folliculitis, and other types of rashes. Panniculitis, aphthous-like ulcerations with stomatitis, neutrophilic dermatosis, peripheral edema, and skin cracking can also occur. Next-generation BTK inhibitors, acalabrutinib and zanubrutinib, have been designed to optimize BTK inhibition and minimize off-target inhibition of alternative kinases (Tec, ITK, EGFR, SRC-family kinases). These drugs have been recently FDA-approved for relapsed or refractory mantle cell lymphoma. Although the overall incidence of their toxicities is expected to be more limited, acalubrutinib and zanubrutinib are associated with a range of dermatologic toxic effects that appear to be similar to those previously described with ibrutinib, including bruising and ecchymoses, panniculitis, human herpesvirus infections, cellulitis, and skin rash. In particular, both drugs induce skin bleeding events in more than 30% of patients treated. However, the available dermatological data are still rather limited and will have to be consolidated prospectively. This review article analyses the wide spectrum of dermatological toxicities that can be encountered with first- and second-generation BTK inhibitors. Finally, recommendations for appropriate treatment as well as a synthesis algorithm for management are also proposed.
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Affiliation(s)
- Vincent Sibaud
- Oncodermatology Department, Institut Claudius Regaud and Institut Universitaire du Cancer Toulouse Oncopole, 1 avenue Irène Joliot-Curie, 31059, Toulouse Cedex 9, France.
| | - Marie Beylot-Barry
- Dermatology Department, Hôpital Saint-André, INSERM U1053, Oncogenesis of Cutaneous Lymphoma, Bordeaux, France
| | - Caroline Protin
- Haematology Department, Institut Universitaire du Cancer Toulouse Oncopole, 1 avenue Irène Joliot-Curie, 31059, Toulouse Cedex 9, France
| | - Emmanuelle Vigarios
- Oral Medicine Department, Institut Universitaire du Cancer Toulouse Oncopole, 1 avenue Irène Joliot-Curie, 31059, Toulouse Cedex 9, France
| | - Christian Recher
- Haematology Department, Institut Universitaire du Cancer Toulouse Oncopole, 1 avenue Irène Joliot-Curie, 31059, Toulouse Cedex 9, France
| | - Loic Ysebaert
- Haematology Department, Institut Universitaire du Cancer Toulouse Oncopole, 1 avenue Irène Joliot-Curie, 31059, Toulouse Cedex 9, France
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Litzenburger T, Steffgen J, Benediktus E, Müller F, Schultz A, Klein E, Ramanujam M, Harcken C, Gupta A, Wu J, Wiebe S, Li X, Flack M, Padula SJ, Visvanathan S, Hünnemeyer A, Hui J. Safety, pharmacokinetics and pharmacodynamics of BI 705564, a highly selective, covalent inhibitor of Bruton's tyrosine kinase, in Phase I clinical trials in healthy volunteers. Br J Clin Pharmacol 2020; 87:1824-1838. [PMID: 32986868 PMCID: PMC9290462 DOI: 10.1111/bcp.14571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 12/15/2022] Open
Abstract
Aims To evaluate the safety, pharmacokinetics and pharmacodynamics of single‐ and multiple‐rising doses (MRDs) of BI 705564 and establish proof of mechanism. Methods BI 705564 was studied in 2 placebo‐controlled, Phase I clinical trials testing single‐rising doses (1–160 mg) and MRDs (1–80 mg) of BI 705564 over 14 days in healthy male volunteers. Blood samples were analysed for BI 705564 plasma concentration, Bruton's tyrosine kinase (BTK) target occupancy (TO) and CD69 expression in B cells stimulated ex vivo. A substudy was conducted in allergic, otherwise healthy, MRD participants. Safety was assessed in both studies. Results All doses of BI 705564 were well tolerated. Geometric mean BI 705564 plasma terminal half‐life ranged from 10.1 to 16.9 hours across tested doses, with no relevant accumulation after multiple dosing. Doses ≥20 mg resulted in ≥85% average TO that was maintained for ≥48 hours after single‐dose administration. Functional effects of BTK signalling were demonstrated by dose‐dependent inhibition of CD69 expression. In allergic participants, BI 705564 treatment showed a trend in wheal size reduction in a skin prick test and complete inhibition of basophil activation. Mild bleeding‐related adverse events were observed with BI 705564; bleeding time increased in 1/12 participants (8.3%) who received placebo vs 26/48 (54.2%) treated with BI 705564. Conclusion BI 705564 showed efficient target engagement through durable TO and inhibition of ex vivo B‐cell activation, and proof of mechanism through effects on allergic skin responses. Mild bleeding‐related adverse events were probably related to inhibition of platelet aggregation by BTK inhibition.
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Affiliation(s)
| | | | | | - Fabian Müller
- Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Armin Schultz
- CRS Clinical Research Services Mannheim GmbH Mannheim Germany
| | - Elliott Klein
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
| | | | | | - Alpana Gupta
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
| | - Jing Wu
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
| | - Sabrina Wiebe
- Boehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Xiujiang Li
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
| | - Mary Flack
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
| | | | | | | | - Jianan Hui
- Boehringer Ingelheim Pharmaceuticals Ridgefield CT USA
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Awan FT, Al-Sawaf O, Fischer K, Woyach JA. Current Perspectives on Therapy for Chronic Lymphocytic Leukemia. Am Soc Clin Oncol Educ Book 2020; 40:1-10. [PMID: 32239979 DOI: 10.1200/edbk_279099] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Therapy for chronic lymphocytic leukemia has improved dramatically over the past decade with the introduction of new targeted therapies and a paradigm shift toward targeted therapies for the majority of patients. Better understanding of prognostic factors has helped tailor therapy for individual patients, and work continues to identify optimal therapy for each patient. When therapy is required, most patients will be treated with targeted therapies, either the Bruton tyrosine kinase (BTK) inhibitors ibrutinib or acalabrutinib or the BCL-2 inhibitor venetoclax in combination with obinutuzumab. Without head-to-head comparisons showing differential efficacy among these options, considerations regarding safety, patient preference, and ability to sequence therapy currently influence treatment decisions. Also, clinical trials investigating combinations of these therapies have the potential to further change the standard of care. In this review, we cover the currently available options for the frontline treatment of chronic lymphocytic leukemia (CLL) and discuss safety considerations and toxicity management with each agent as well as novel combination strategies currently under investigation.
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Affiliation(s)
- Farrukh T Awan
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX
| | - Othman Al-Sawaf
- Department of Internal Medicine and Center of Integrated Oncology Cologne Bonn, University Hospital, Cologne, Germany
| | - Kirsten Fischer
- Department of Internal Medicine and Center of Integrated Oncology Cologne Bonn, University Hospital, Cologne, Germany
| | - Jennifer A Woyach
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH
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31
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Dmitrieva EA, Nikitin EA, Ignatova AA, Vorobyev VI, Poletaev AV, Seregina EA, Voronin KA, Polokhov DM, Maschan AA, Novichkova GA, Panteleev MA, Ptushkin VV. Platelet function and bleeding in chronic lymphocytic leukemia and mantle cell lymphoma patients on ibrutinib. J Thromb Haemost 2020; 18:2672-2684. [PMID: 32511880 DOI: 10.1111/jth.14943] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/06/2020] [Accepted: 05/11/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Therapy with irreversible Bruton's tyrosine kinase inhibitor ibrutinib in chronic lymphocytic leukemia (CLL) and mantle cell lymphoma (MCL) is associated with bleeding. OBJECTIVES To propose the predictive markers of such bleeding, as well as mechanisms responsible for decreased bleeding at later therapy stages. PATIENTS/METHODS We investigate platelet functional activity in 50 CLL and 16 MCL patients on ibrutinib using flow cytometry and light transmission aggregometry. RESULTS Prior to treatment, both patient groups had decreased platelet counts; impaired aggregation with adenosine diphosphate (ADP); and decreased binding of CD62P, PAC1, and annexin V upon stimulation. Bleeding in patients treated with ibrutinib was observed in 28 (56%) CLL patients, who had decreased aggregation with ADP and platelet count before therapy. Their platelet count on therapy did not change, platelet aggregation with ADP steadily improved, and aggregation with collagen first decreased and then increased in anticorrellation with bleeding. Bleeding in MCL was observed in 10 (62%) patients, who had decreased dense granule release before therapy. ADP and ristocetin induced platelet aggregation in ibrutinib-treated MCL patients increased on therapy, while collagen-induced aggregation evolved similarly to CLL patients. CONCLUSIONS Our results suggest that ibrutinib-dependent bleeding in CLL patients involves three mechanisms: decreased platelet count (the most important discriminator between bleeding and non-bleeding patients), impaired platelet response to ADP caused by CLL, and inhibition by ibrutinib. Initially, ibrutinib shifts the balance to bleeding, but then it is restored because of the improved response to ADP.
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Affiliation(s)
| | | | - Anastasia A Ignatova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Aleksandr V Poletaev
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Elena A Seregina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Kirill A Voronin
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Dmitry M Polokhov
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Aleksey A Maschan
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Galina A Novichkova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Mikhail A Panteleev
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
- Center for Theoretical Problems of Physicochemical Pharmacology of the Russian Academy of Sciences, Moscow, Russia
- Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia
- Faculty of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
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Svanberg R, Ostrowski SR, Nasserinejad K, Kersting S, Dobber JA, Mattson M, Tran HTT, Levin MD, Mous R, Kater AP, Niemann CU. Changes in primary and secondary hemostasis in patients with CLL treated with venetoclax and ibrutinib. Leuk Lymphoma 2020; 61:3422-3431. [PMID: 32865439 DOI: 10.1080/10428194.2020.1811270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Bleeding is a common adverse event following ibrutinib monotherapy. However, it remains unclear how hemostasis is affected by venetoclax in combination with ibrutinib. Here we investigated hemostasis in patients with chronic lymphocytic leukemia (CLL) at baseline, during ibrutinib monotherapy, and during venetoclax and ibrutinib combination therapy or venetoclax monotherapy. Primary hemostasis, assessed by Multiplate using adenosine diphosphate (ADP), arachidonic acid (AA), and thrombin receptor agonist peptide (TRAP-6), was impaired in all CLL patients at baseline, remained unchanged upon ibrutinib monotherapy, and improved significantly following venetoclax added to ibrutinib or as monotherapy. Secondary hemostasis assessed by thromboelastography (TEG) was normal and unchanged throughout treatment. The frequency of clinical bleeding events was the highest during ibrutinib monotherapy, in line with the demonstrated improved primary hemostasis upon addition of venetoclax, thus pointing toward a treatment option for CLL patients with increased bleeding risk.
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Affiliation(s)
- Rebecka Svanberg
- Department of Hematology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Sisse Rye Ostrowski
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark.,Institute for Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kazem Nasserinejad
- Erasmus MC Cancer Centre, HOVON Data Center, Clinical Trial Center, Rotterdam, Netherlands
| | - Sabina Kersting
- Department of Hematology, HagaZiekenhuis, Den Haag, Netherlands
| | - Johan A Dobber
- Laboratory of Hematology, Amsterdam University Medical Centres, Amsterdam, Netherlands
| | - Mattias Mattson
- Department of Hematology, Uppsala University Hospital, Uppsala, Sweden
| | - Hoa T T Tran
- Department of Hematology, Akershus University Hospital, Lorenskog, Norway
| | - Mark-David Levin
- Department of Internal medicine, Albert Schweitzer Hospital, Dordrecht, Netherlands
| | - Rogier Mous
- Department of Hematology, UMC Utrecht Cancer Center, Utrecht, Netherlands
| | - Arnon P Kater
- Department of Hematology, Cancer Center Amsterdam, Lymphoma and Myeloma Center Amsterdam, Amsterdam University Medical Centres, Amsterdam, Netherlands
| | - Carsten U Niemann
- Department of Hematology, Copenhagen University Hospital, Copenhagen, Denmark.,Institute for Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Foster H, Wilson C, Philippou H, Foster R. Progress toward a Glycoprotein VI Modulator for the Treatment of Thrombosis. J Med Chem 2020; 63:12213-12242. [PMID: 32463237 DOI: 10.1021/acs.jmedchem.0c00262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pathogenic thrombus formation accounts for the etiology of many serious conditions including myocardial infarction, stroke, deep vein thrombosis, and pulmonary embolism. Despite the development of numerous anticoagulants and antiplatelet agents, the mortality rate associated with these diseases remains high. In recent years, however, significant epidemiological evidence and clinical models have emerged to suggest that modulation of the glycoprotein VI (GPVI) platelet receptor could be harnessed as a novel antiplatelet strategy. As such, many peptidic agents have been described in the past decade, while more recent efforts have focused on the development of small molecule modulators. Herein the rationale for targeting GPVI is summarized and the published GPVI modulators are reviewed, with particular focus on small molecules. A qualitative pharmacophore hypothesis for small molecule ligands at GPVI is also presented.
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Affiliation(s)
- Holly Foster
- School of Chemistry and Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Clare Wilson
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Helen Philippou
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Richard Foster
- School of Chemistry and Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
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Hopper M, Gururaja T, Kinoshita T, Dean JP, Hill RJ, Mongan A. Relative Selectivity of Covalent Inhibitors Requires Assessment of Inactivation Kinetics and Cellular Occupancy: A Case Study of Ibrutinib and Acalabrutinib. J Pharmacol Exp Ther 2019; 372:331-338. [PMID: 31871305 DOI: 10.1124/jpet.119.262063] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/11/2019] [Indexed: 01/01/2023] Open
Abstract
Kinases form an attractive class of targets for small molecule inhibitors, but similarity among their adenosine triphosphate binding sites presents difficulties for developing selective drugs. Standard methods of evaluating selectivity of most reversibly bound drugs account for binding affinity but not the two-step process, affinity and inactivation, occurring during covalent inhibition. To illustrate this concept, we assessed the selectivity of Bruton's tyrosine kinase (BTK) over TEC kinases by two novel therapeutics: ibrutinib and acalabrutinib. The two-step process and time-dependent inhibition unique to covalent inhibitors were evaluated with two biochemical assays measuring enzymatic function and inhibition kinetics. The selectivity for BTK over TEC found in these biochemical analyses was 1-1.5 for ibrutinib and 3.0-4.2 for acalabrutinib. To further assess drug selectivity in a more physiologically relevant context, we developed cell-based occupancy assays that quantify the percentage of drug-inactivated kinases. Cellular selectivity of BTK over TEC was determined after MWCL-1 cells, and samples from patients with chronic lymphocytic leukemia (CLL) were treated for durations and concentrations based on human pharmacokinetics of each drug. In MWCL-1 cells, BTK/TEC selectivities measured at 0.5, 1, and 3 hours were 2.53, 1.05, and 1.51 for ibrutinib and 0.97, 1.13, and 2.56 for acalabrutinib, respectively. The equivalent selectivity measured in samples from patients with CLL were 1.31 ± 0.27 and 1.09 ± 0.11 for ibrutinib and acalabrutinib, respectively. Collectively, our data show that when properly accounting for time-dependent factors and relevant cellular context, ibrutinib and acalabrutinib demonstrate similar selectivity for BTK over TEC. SIGNIFICANCE STATEMENT: This study shows relative selectivity of covalent inhibitors toward different kinase targets should be assessed with both affinity and inactivation kinetics to accurately account for time-dependent effects of covalent binding and assessed in a cellular matrix to reproduce the physiologic context of target inhibition. This is illustrated with a case study of ibrutinib and acalabrutinib for which selectivity assessment with appropriate assays, as opposed to measuring binding affinity with KINOMEscan alone, corroborate emerging clinical data demonstrating similar safety profiles between the therapies.
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Affiliation(s)
- Melissa Hopper
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, California
| | | | | | - James P Dean
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, California
| | - Ronald J Hill
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, California
| | - Ann Mongan
- Pharmacyclics LLC, an AbbVie Company, Sunnyvale, California
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Acquired platelet function disorders. Thromb Res 2019; 196:561-568. [PMID: 31229273 DOI: 10.1016/j.thromres.2019.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 06/08/2019] [Accepted: 06/14/2019] [Indexed: 12/16/2022]
Abstract
The possibility of an acquired platelet function disorder should be considered in patients who present with recent onset muco-cutaneous bleeding. Despite the availability of newer and faster platelet function assays, light transmission aggregometry (LTA) remains the preferred diagnostic test. This review examines and discusses the causes of acquired platelet dysfunction; most commonly drugs, dietary factors, medical disorders and procedures. In addition to well-known antiplatelet therapies, clinicians should be alert for newer drugs which can affect platelets, such as ibrutinib. There is little clinical trial evidence to guide the management of acquired platelet function defects, but we summarise commonly employed strategies, which include addressing the underlying cause, antifibrinolytic agents, desmopressin infusions, and in selected patients, platelet transfusions.
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