1
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Wang DD, Yu Y, Fukuhara K, Liu Y, Park SY, Parivar K. An Investigation in the Comparability of the Exposure and Recommended Dose of Selected Pfizer Drugs in East Asian Countries: Is Mutual Usage of Clinical Data Among East Asian Countries Feasible? J Clin Pharmacol 2024; 64:609-618. [PMID: 38105399 DOI: 10.1002/jcph.2394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
The current regulatory path for new drug registration in East Asian countries has led to significant delay of the new medicines in these countries. A unified regulatory path and allowance of mutual usage of clinical data in East Asian countries would lead to cost saving in drug development and expedite the new drug registration in these countries. The objectives of the present analysis are to compare the approval dates of a selection of products developed by Pfizer in the United States and East Asian countries (China, Japan, Korea) and compare the pharmacokinetics and recommended doses of these products in East Asian countries. Eighteen products (20 drugs, 2 products with 2 combination drugs) with exposure data available in at least 2 of the 3 East Asian countries across different therapeutic areas were included in the analyses. The results showed that most products had delayed approval in East Asian countries (up to 8 years) after US or EU approval. No distinct differences were observed in the drug exposure and recommended doses for the selected products in East Asian countries. These results together with literature data of genetic similarity of the East Asian populations support the mutual usage of the clinical data in the East Asian countries for expedited regulatory submission and approval.
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Affiliation(s)
- Diane D Wang
- Clinical Pharmacology, Pfizer Research and Development, Pfizer, San Diego, CA, USA
| | - Yanke Yu
- Clinical Pharmacology, Pfizer Research and Development, Pfizer, San Diego, CA, USA
| | - Kei Fukuhara
- Pfizer R&D Japan, Tokyo, Japan
- Shinjuku Bunka Quint Bldg, Shibuya-ku, Tokyo, Japan
| | - Yuwang Liu
- Pfizer Investment Co. Ltd., Development China, Dongcheng District, Beijing, China
| | - So-Young Park
- Pfizer Pharmaceuticals Korea Ltd, Global Regulatory Sciences, Jung-gu, Seoul, Republic of Korea
| | - Kourosh Parivar
- Clinical Pharmacology, Pfizer Research and Development, Pfizer, San Diego, CA, USA
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2
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Bettonte S, Berton M, Stader F, Battegay M, Marzolini C. Management of Drug Interactions with Inducers: Onset and Disappearance of Induction on Cytochrome P450 3A4 and Uridine Diphosphate Glucuronosyltransferase 1A1 Substrates. Eur J Drug Metab Pharmacokinet 2023:10.1007/s13318-023-00833-9. [PMID: 37278880 DOI: 10.1007/s13318-023-00833-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND People living with HIV may present co-morbidities requiring the initiation and subsequently the discontinuation of medications with inducing properties. The time to reach maximal enzyme induction and to return to baseline enzyme levels has not been thoroughly characterized. OBJECTIVE The aim of this study was to evaluate the onset and disappearance of dolutegravir [uridine diphosphate glucuronosyltransferase (UGT) 1A1 and cytochrome P450 (CYP) 3A4 substrate] and raltegravir (UGT1A1 substrate) induction with strong and moderate inducers using physiologically based pharmacokinetic (PBPK) modeling. METHODS The predictive performance of the PBPK model to simulate dolutegravir and raltegravir pharmacokinetics and to reproduce the strength of induction was verified using clinical drug-drug interaction studies (steady-state induction) and switch studies (residual induction). The model was considered verified when the predictions were within 2-fold of the observed data. One hundred virtual individuals (50% female) were generated to simulate the unstudied scenarios. The results were used to calculate the fold-change in CYP3A4 and UGT1A1 enzyme levels upon initiation and discontinuation of strong (rifampicin) or moderate (efavirenz or rifabutin) inducers. RESULTS The time for reaching maximal induction and subsequent disappearance of CYP3A4 induction was 14 days for rifampicin and efavirenz but 7 days for rifabutin. The distinct timelines for the moderate inducers relate to their different half-lives and plasma concentrations. The induction and de-induction processes were more rapid for UGT1A1. CONCLUSIONS Our simulations support the common practice of maintaining the adjusted dosage of a drug for another 2 weeks after stopping an inducer. Furthermore, our simulations suggest that an inducer should be administered for at least 14 days before conducting interaction studies to reach maximal induction.
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Affiliation(s)
- Sara Bettonte
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Medicine and Clinical Research, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
- Faculty of Medicine, University of Basel, 4031, Basel, Switzerland.
| | - Mattia Berton
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Medicine and Clinical Research, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
- Faculty of Medicine, University of Basel, 4031, Basel, Switzerland
| | | | - Manuel Battegay
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Medicine and Clinical Research, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
- Faculty of Medicine, University of Basel, 4031, Basel, Switzerland
| | - Catia Marzolini
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Medicine and Clinical Research, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
- Faculty of Medicine, University of Basel, 4031, Basel, Switzerland.
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, L69 3GF, UK.
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3
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Marie S, Frost KL, Hau RK, Martinez-Guerrero L, Izu JM, Myers CM, Wright SH, Cherrington NJ. Predicting disruptions to drug pharmacokinetics and the risk of adverse drug reactions in non-alcoholic steatohepatitis patients. Acta Pharm Sin B 2023; 13:1-28. [PMID: 36815037 PMCID: PMC9939324 DOI: 10.1016/j.apsb.2022.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/18/2022] Open
Abstract
The liver plays a central role in the pharmacokinetics of drugs through drug metabolizing enzymes and transporters. Non-alcoholic steatohepatitis (NASH) causes disease-specific alterations to the absorption, distribution, metabolism, and excretion (ADME) processes, including a decrease in protein expression of basolateral uptake transporters, an increase in efflux transporters, and modifications to enzyme activity. This can result in increased drug exposure and adverse drug reactions (ADRs). Our goal was to predict drugs that pose increased risks for ADRs in NASH patients. Bibliographic research identified 71 drugs with reported ADRs in patients with liver disease, mainly non-alcoholic fatty liver disease (NAFLD), 54 of which are known substrates of transporters and/or metabolizing enzymes. Since NASH is the progressive form of NAFLD but is most frequently undiagnosed, we identified other drugs at risk based on NASH-specific alterations to ADME processes. Here, we present another list of 71 drugs at risk of pharmacokinetic disruption in NASH, based on their transport and/or metabolism processes. It encompasses drugs from various pharmacological classes for which ADRs may occur when used in NASH patients, especially when eliminated through multiple pathways altered by the disease. Therefore, these results may inform clinicians regarding the selection of drugs for use in NASH patients.
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Affiliation(s)
- Solène Marie
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Kayla L. Frost
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Raymond K. Hau
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Lucy Martinez-Guerrero
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Jailyn M. Izu
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Cassandra M. Myers
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Stephen H. Wright
- College of Medicine, Department of Physiology, University of Arizona, Tucson, AZ 85724, USA
| | - Nathan J. Cherrington
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA,Corresponding author. Tel.: +1 520 6260219; fax: +1 520 6266944.
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4
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Le Louedec F, Puisset F, Chatelut E, Tod M. Considering the Oral Bioavailability of Protein Kinase Inhibitors: Essential in Assessing the Extent of Drug-Drug Interaction and Improving Clinical Practice. Clin Pharmacokinet 2023; 62:55-66. [PMID: 36631685 DOI: 10.1007/s40262-022-01200-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2022] [Indexed: 01/13/2023]
Abstract
Protein kinase inhibitors share pharmacokinetic (PK) pathways among themselves. They are all metabolized by several cytochromes P450 (CYP). For most of them, CYP3A4 is the predominant metabolic pathway. However, their oral bioavailability differs. For example, the oral bioavailability of imatinib has been estimated at nearly 100%, but that of ibrutinib averages 3% due to its high hepatic first-pass effect. Overall, the smaller the oral bioavailability, the larger its interindividual PK variability. Indeed, for drugs with low oral bioavailability, the extent of their absorption is an additional cause (along with elimination variability) of differences in drug exposure among patients. The impact of drug-drug interaction (DDI) also differs between drugs with low or high oral bioavailability. We describe and explain why the impact of CYP3A4 inhibitors and inducers is much greater for protein kinase inhibitors with low oral bioavailability. The effect of food on protein kinase inhibitors and DDIs corresponding to plasma protein binding will also be considered. Finally, the benefits of these concepts in clinical practice (including therapeutic drug monitoring) will be discussed. Overall, our main objective was to apply fundamental PK concepts to understanding the main clinical issues of these oral anticancer drugs.
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Affiliation(s)
- Félicien Le Louedec
- Institut Claudius-Regaud, Institut Universitaire du Cancer Toulouse, Oncopole, 31059, Toulouse, France
- CRCT, Cancer Research Center of Toulouse, Inserm U1037, Université Paul Sabatier, Toulouse, France
| | - Florent Puisset
- Institut Claudius-Regaud, Institut Universitaire du Cancer Toulouse, Oncopole, 31059, Toulouse, France
- CRCT, Cancer Research Center of Toulouse, Inserm U1037, Université Paul Sabatier, Toulouse, France
| | - Etienne Chatelut
- Institut Claudius-Regaud, Institut Universitaire du Cancer Toulouse, Oncopole, 31059, Toulouse, France.
- CRCT, Cancer Research Center of Toulouse, Inserm U1037, Université Paul Sabatier, Toulouse, France.
| | - Michel Tod
- Hospices Civils de Lyon, GH Nord, Service de Pharmacie, 69004, Lyon, France
- Université Claude Bernard Lyon 1, UMR CNRS 5558, LBBE-Laboratoire de Biométrie et Biologie Évolutive, 69622, Villeurbanne, France
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5
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Tiako Meyo M, Chen J, Goldwasser F, Hirsch L, Huillard O. A Profile of Avelumab Plus Axitinib in the Treatment of Renal Cell Carcinoma. Ther Clin Risk Manag 2022; 18:683-698. [PMID: 35837579 PMCID: PMC9275425 DOI: 10.2147/tcrm.s263832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 07/02/2022] [Indexed: 11/23/2022] Open
Abstract
Until recently, the approved first-line treatment for metastatic RCC (mRCC) consisted of tyrosine kinase inhibitors (TKI) targeting the vascular endothelial growth factor receptors (VEGFR) monotherapy. The landscape of first-line treatment has been transformed in the last few years with the advent of immune checkpoint inhibitors (ICI) or VEGFR TKI plus ICI combinations. This article focuses on the profile of one of these ICI plus VEGFR TKI combination, avelumab plus axitinib. We detail the characteristics of each drug separately, and then we explore the rationale for their association, its efficacy and the resulting toxicity. Finally, we examine the factors associated with avelumab plus axitinib outcomes, and their impact on therapeutic strategy.
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Affiliation(s)
- Manuela Tiako Meyo
- Department of Medical Oncology, Institut du Cancer Paris CARPEM, AP-HP, APHP.Centre, Hôpital Cochin, Paris, France.,Immunomodulatory Therapies Multidisciplinary Study Group (CERTIM), AP-HP, APHP.Centre, Hôpital Cochin, Paris, France
| | - Jeanne Chen
- Department of Medical Oncology, Institut du Cancer Paris CARPEM, AP-HP, APHP.Centre, Hôpital Cochin, Paris, France.,Immunomodulatory Therapies Multidisciplinary Study Group (CERTIM), AP-HP, APHP.Centre, Hôpital Cochin, Paris, France
| | - Francois Goldwasser
- Department of Medical Oncology, Institut du Cancer Paris CARPEM, AP-HP, APHP.Centre, Hôpital Cochin, Paris, France.,Immunomodulatory Therapies Multidisciplinary Study Group (CERTIM), AP-HP, APHP.Centre, Hôpital Cochin, Paris, France
| | - Laure Hirsch
- Department of Medical Oncology, Institut du Cancer Paris CARPEM, AP-HP, APHP.Centre, Hôpital Cochin, Paris, France.,Immunomodulatory Therapies Multidisciplinary Study Group (CERTIM), AP-HP, APHP.Centre, Hôpital Cochin, Paris, France
| | - Olivier Huillard
- Department of Medical Oncology, Institut du Cancer Paris CARPEM, AP-HP, APHP.Centre, Hôpital Cochin, Paris, France.,Immunomodulatory Therapies Multidisciplinary Study Group (CERTIM), AP-HP, APHP.Centre, Hôpital Cochin, Paris, France
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6
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Fahmy A, Hopkins AM, Sorich MJ, Rowland A. Evaluating the utility of therapeutic drug monitoring in the clinical use of small molecule kinase inhibitors: a review of the literature. Expert Opin Drug Metab Toxicol 2021; 17:803-821. [PMID: 34278936 DOI: 10.1080/17425255.2021.1943357] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction: Orally administered small molecule kinase inhibitors (KI) are a key class of targeted anti-cancer medicines that have contributed substantially to improved survival outcomes in patients with advanced disease. Since the introduction of KIs in 2001, there has been a building body of evidence that the benefit derived from these drugs may be further enhanced by individualizing dosing on the basis of concentration.Areas covered: This review considers the rationale for individualized KI dosing and the requirements for robust therapeutic drug monitoring (TDM). Current evidence supporting TDM-guided KI dosing is presented and critically evaluated, and finally potential approaches to address translational challenges for TDM-guided KI dosing and alternate approaches to support individualization of KI dosing are discussed.Expert opinion: Intuitively, the individualization of KI dosing through an approach such as TDM-guided dosing has great potential to enhance the effectiveness and tolerability of these drugs. However, based on current literature evidence it is unrealistic to propose that TDM-guided KI dosing should be routinely implemented into clinical practice.
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Affiliation(s)
- Alia Fahmy
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Ashley M Hopkins
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Michael J Sorich
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Andrew Rowland
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
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7
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Hakkola J, Hukkanen J, Turpeinen M, Pelkonen O. Inhibition and induction of CYP enzymes in humans: an update. Arch Toxicol 2020; 94:3671-3722. [PMID: 33111191 PMCID: PMC7603454 DOI: 10.1007/s00204-020-02936-7] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022]
Abstract
The cytochrome P450 (CYP) enzyme family is the most important enzyme system catalyzing the phase 1 metabolism of pharmaceuticals and other xenobiotics such as herbal remedies and toxic compounds in the environment. The inhibition and induction of CYPs are major mechanisms causing pharmacokinetic drug–drug interactions. This review presents a comprehensive update on the inhibitors and inducers of the specific CYP enzymes in humans. The focus is on the more recent human in vitro and in vivo findings since the publication of our previous review on this topic in 2008. In addition to the general presentation of inhibitory drugs and inducers of human CYP enzymes by drugs, herbal remedies, and toxic compounds, an in-depth view on tyrosine-kinase inhibitors and antiretroviral HIV medications as victims and perpetrators of drug–drug interactions is provided as examples of the current trends in the field. Also, a concise overview of the mechanisms of CYP induction is presented to aid the understanding of the induction phenomena.
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Affiliation(s)
- Jukka Hakkola
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Biocenter Oulu, University of Oulu, Oulu, Finland.,Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Janne Hukkanen
- Biocenter Oulu, University of Oulu, Oulu, Finland.,Research Unit of Internal Medicine, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Miia Turpeinen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Administration Center, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Olavi Pelkonen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.
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8
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Fogli S, Porta C, Del Re M, Crucitta S, Gianfilippo G, Danesi R, Rini BI, Schmidinger M. Optimizing treatment of renal cell carcinoma with VEGFR-TKIs: a comparison of clinical pharmacology and drug-drug interactions of anti-angiogenic drugs. Cancer Treat Rev 2020; 84:101966. [PMID: 32044644 DOI: 10.1016/j.ctrv.2020.101966] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 02/07/2023]
Abstract
Anti-angiogenic treatment is an important option that has changed the therapeutic landscape in various tumors, particularly in patients affected by renal cell carcinoma (RCC). Agents that block signaling pathways governing tumor angiogenesis have raised high expectations among clinicians. Vascular endothelial growth factor receptor-tyrosine kinase inhibitors (VEGFR-TKIs) comprise a heterogeneous class of drugs with distinct pharmacological profiles, including potency, selectivity, pharmacokinetics and drug-drug interactions. Among them, tivozanib is one of the last TKIs introduced in the clinical practice; this drug selectively targets VEGFRs, it is characterized by a favorable pharmacokinetics and safety profile and has been approved as first-line treatment for patients with metastatic RCC (mRCC). In this article, we describe the clinical pharmacology of selected VEGFR-TKIs used for the treatment of mRCC, highlighting the relevant differences; moreover we aim to define the main pharmacologic characteristics of these drug.
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Affiliation(s)
- Stefano Fogli
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Camillo Porta
- Department of Internal Medicine, University of Pavia and Division of Translational Oncology, IRCCS Istituti Clinici Scientifici Maugeri, Pavia, Italy
| | - Marzia Del Re
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefania Crucitta
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Giulia Gianfilippo
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Romano Danesi
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
| | - Brian I Rini
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Manuela Schmidinger
- Clinical Division of Oncology, Department of Medicine I and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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9
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Ornstein MC, Pal SK, Wood LS, Tomer JM, Hobbs BP, Jia XS, Allman KD, Martin A, Olencki T, Davis NB, Gilligan TD, Mortazavi A, Rathmell WK, Garcia JA, Rini BI. Individualised axitinib regimen for patients with metastatic renal cell carcinoma after treatment with checkpoint inhibitors: a multicentre, single-arm, phase 2 study. Lancet Oncol 2019; 20:1386-1394. [PMID: 31427205 DOI: 10.1016/s1470-2045(19)30513-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Checkpoint inhibitor therapy is a standard of care for patients with metastatic renal cell carcinoma. Treatment options after checkpoint inhibitor therapy include vascular endothelial growth factor receptor (VEGF-R) tyrosine kinase inhibitors, although no prospective data regarding their use in this setting exist. Axitinib is a VEGF-R inhibitor with clinical data supporting increased activity with dose titration. We aimed to investigate the activity of dose titrated axitinib in patients with metastatic renal cell carcinoma who were previously treated with checkpoint inhibitor. METHODS We did a multicentre, phase 2 trial of axitinib given on an individualised dosing algorithm. Patients at least 18 years of age with histologically or cytologically confirmed locally recurrent or metastatic renal cell carcinoma with clear cell histology, a Karnofsky Performance Status of 70% or more, and measurable disease who received checkpoint inhibitor therapy as the most recent treatment were eligible. There was no limit on number of previous therapies received. Patients received oral axitinib at a starting dose of 5 mg twice daily with dose titration every 14 days in 1 mg increments (ie, 5 mg twice daily to 6 mg twice daily, up to 10 mg twice daily maximum dose) if there was no axitinib-related grade 2 or higher mucositis, diarrhoea, hand-foot syndrome, or fatigue. If one or more of these grade 2 adverse events occurred, axitinib was withheld for 3 days before the same dose was resumed. Dose reductions were made if recurrent grade 2 adverse events despite treatment breaks or grade 3-4 adverse events occurred. The primary outcome was progression-free survival. Analyses were done per protocol in all patients who received at least one dose of axitinib. Recruitment has been completed and the trial is ongoing. This trial is registered with ClincalTrials.gov, number NCT02579811. FINDINGS Between Jan 5, 2016 and Feb 21, 2018, 40 patients were enrolled and received at least one dose of study treatment. With a median follow-up of 8·7 months (IQR 3·7-14·2), the median progression-free survival was 8·8 months (95% CI 5·7-16·6). Fatigue (83%) and hypertension (75%) were the most common all-grade adverse events. The most common grade 3 adverse event was hypertension (24 patients [60%]). There was one (3%) grade 4 adverse event (elevated lipase) and no treatment-related deaths occurred. Serious adverse events that were likely related to therapy occurred in eight (20%) patients; the most common were dehydration (n=4) and diarrhoea (n=2). INTERPRETATION Individualised axitinib dosing in patients with metastatic renal cell inoma previously treated with checkpoint inhibitors did not meet the prespecified threshold for progression free survival, but these data show that this individualised titration scheme is feasible and has robust clinical activity. These prospective results warrant consideration of axitinib in this setting. FUNDING Pfizer.
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Affiliation(s)
- Moshe C Ornstein
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA.
| | - Sumanta K Pal
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Laura S Wood
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Jackie M Tomer
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Brian P Hobbs
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Xuefei S Jia
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Kimberly D Allman
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Allison Martin
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Thomas Olencki
- Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Nancy B Davis
- Division of Hematology and Oncology, Vanderbilt Ingram Cancer Center, Nashville, TN, USA
| | - Timothy D Gilligan
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Amir Mortazavi
- Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - W Kimryn Rathmell
- Division of Hematology and Oncology, Vanderbilt Ingram Cancer Center, Nashville, TN, USA
| | - Jorge A Garcia
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
| | - Brian I Rini
- Department of Hematology and Medical Oncology, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH, USA
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10
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Kapetas AJ, Sorich MJ, Rodrigues AD, Rowland A. Guidance for Rifampin and Midazolam Dosing Protocols To Study Intestinal and Hepatic Cytochrome P450 (CYP) 3A4 Induction and De-induction. AAPS JOURNAL 2019; 21:78. [DOI: 10.1208/s12248-019-0341-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/15/2019] [Indexed: 12/24/2022]
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11
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Hussaarts KGAM, Veerman GDM, Jansman FGA, van Gelder T, Mathijssen RHJ, van Leeuwen RWF. Clinically relevant drug interactions with multikinase inhibitors: a review. Ther Adv Med Oncol 2019; 11:1758835918818347. [PMID: 30643582 PMCID: PMC6322107 DOI: 10.1177/1758835918818347] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/17/2018] [Indexed: 12/11/2022] Open
Abstract
Multikinase inhibitors (MKIs), including the tyrosine kinase inhibitors (TKIs), have rapidly become an established factor in daily (hemato)-oncology practice. Although the oral route of administration offers improved flexibility and convenience for the patient, challenges arise in the use of MKIs. As MKIs are prescribed extensively, patients are at increased risk for (severe) drug–drug interactions (DDIs). As a result of these DDIs, plasma pharmacokinetics of MKIs may vary significantly, thereby leading to high interpatient variability and subsequent risk for increased toxicity or a diminished therapeutic outcome. Most clinically relevant DDIs with MKIs concern altered absorption and metabolism. The absorption of MKIs may be decreased by concomitant use of gastric acid-suppressive agents (e.g. proton pump inhibitors) as many kinase inhibitors show pH-dependent solubility. In addition, DDIs concerning drug (uptake and efflux) transporters may be of significant clinical relevance during MKI therapy. Furthermore, since many MKIs are substrates for cytochrome P450 isoenzymes (CYPs), induction or inhibition with strong CYP inhibitors or inducers may lead to significant alterations in MKI exposure. In conclusion, DDIs are of major concern during MKI therapy and need to be monitored closely in clinical practice. Based on the current knowledge and available literature, practical recommendations for management of these DDIs in clinical practice are presented in this review.
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Affiliation(s)
- Koen G A M Hussaarts
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands
| | - G D Marijn Veerman
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Frank G A Jansman
- Department of Clinical Pharmacy, Deventer Hospital, Deventer, The Netherlands
| | - Teun van Gelder
- Department of Hospital Pharmacy, Erasmus MC, Rotterdam, The Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
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12
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Morotti M, Dass PH, Harris AL, Lord S. Pharmacodynamic and Pharmacokinetic Markers For Anti-angiogenic Cancer Therapy: Implications for Dosing and Selection of Patients. Eur J Drug Metab Pharmacokinet 2018; 43:137-153. [PMID: 29019020 DOI: 10.1007/s13318-017-0442-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Angiogenesis is integral to tumour growth and invasion, and is a key target for cancer therapeutics. However, for many of the licensed indications, only a modest clinical benefit has been observed for both monoclonal antibody and small-molecule tyrosine kinase inhibitor anti-angiogenic therapy. Pre-clinical and clinical studies have attempted to evaluate circulating, imaging, genomic, pharmacokinetic, and pharmacodynamic markers that may aid both the selection of patients for treatment and define dosing. Correct dosing is likely to be critical in the context of vascular normalization to allow better delivery of concomitant anti-cancer therapy and novel imaging techniques hold much promise in the early evaluation of pharmacodynamic response to improve efficacy.
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Affiliation(s)
- Matteo Morotti
- Hypoxia and Angiogenesis Group, Cancer Research UK Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK.
- Department of Gynaecology Oncology, University of Oxford, Oxford, UK.
- Department of Oncology, Churchill Hospital, University of Oxford, Oxford, OX3 9DU, UK.
| | - Prashanth Hari Dass
- Department of Oncology, Churchill Hospital, University of Oxford, Oxford, OX3 9DU, UK
| | - Adrian L Harris
- Hypoxia and Angiogenesis Group, Cancer Research UK Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK
- Department of Oncology, Churchill Hospital, University of Oxford, Oxford, OX3 9DU, UK
| | - Simon Lord
- Hypoxia and Angiogenesis Group, Cancer Research UK Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK
- Department of Oncology, Churchill Hospital, University of Oxford, Oxford, OX3 9DU, UK
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Bellesoeur A, Carton E, Alexandre J, Goldwasser F, Huillard O. Axitinib in the treatment of renal cell carcinoma: design, development, and place in therapy. Drug Des Devel Ther 2017; 11:2801-2811. [PMID: 29033542 PMCID: PMC5614734 DOI: 10.2147/dddt.s109640] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Since 2005, the approved first-line treatment of metastatic renal cell carcinoma consists in tyrosine kinase inhibitors (TKIs) targeting the vascular endothelial growth factor receptors (VEGFRs). Axitinib is an oral second-generation TKI and a potent VEGFR inhibitor with a half maximal inhibitory concentration for the VEGF family receptors 10-fold lower than other TKIs. Axitinib activity in renal cell carcinoma (RCC) patients has been studied in various settings and particularly as second-line treatment. In this setting, axitinib with clinically based dose escalation compared to sorafenib has demonstrated an improvement in progression-free survival in a randomized Phase III trial leading to US Food and Drug Administration approval. In the first-line setting, axitinib failed to demonstrate improved efficacy over sorafenib, but the field of RCC treatment is rapidly changing with novel TKIs as cabozantinib or the emergence of check point inhibitors as nivolumab and the place of axitinib in therapy is therefore challenged. In this review, we focus on axitinib pharmacological and clinical properties in RCC patients and discuss its place in the treatment of patients with RCC.
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Affiliation(s)
| | - Edith Carton
- Department of Medical Oncology, Hopital Cochin AP-HP, Paris, France
| | - Jerome Alexandre
- Department of Medical Oncology, Hopital Cochin AP-HP, Paris, France
| | | | - Olivier Huillard
- Department of Medical Oncology, Hopital Cochin AP-HP, Paris, France
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Umeyama Y, Shibasaki Y, Akaza H. Axitinib in metastatic renal cell carcinoma: beyond the second-line setting. Future Oncol 2017; 13:1839-1852. [PMID: 28707479 DOI: 10.2217/fon-2017-0104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Treatment options for advanced and metastatic renal cell carcinoma have advanced considerably in the past decade with the approval of several targeted agents, including axitinib. Axitinib is a potent and selective inhibitor of VEGFRs 1-3, and is well established as second-line treatment. This article summarizes factors to be considered when administering axitinib, such as individualized dose titration and axitinib-associated adverse events, in order to retain patients longer on treatment, which would likely lead to improved efficacy outcomes. In addition, potential clinical perspectives for axitinib beyond the second-line setting, including its role in the first-line setting, sequential therapy, neoadjuvant and adjuvant therapies, and combination therapy with immunotherapy, in particular, immune checkpoint inhibitors, are discussed.
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Affiliation(s)
- Yoshiko Umeyama
- Pfizer Japan Inc., 3-22-7 Yoyogi, Shibuya-ku, Tokyo 151-8589, Japan
| | | | - Hideyuki Akaza
- Strategic Investigation on Comprehensive Cancer Network, Interfaculty Initiative in Information Studies/Graduate School of Interdisciplinary Information Studies, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
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15
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Tyrosine Kinase and Mammalian Target of Rapamycin Inhibitors in the Treatment of Advanced Renal Cell Carcinoma: Practical Clinical Implications of Pharmacologic Features. Clin Genitourin Cancer 2017; 15:7-22. [DOI: 10.1016/j.clgc.2016.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 05/12/2016] [Accepted: 05/18/2016] [Indexed: 12/28/2022]
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16
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Campen CJ, Vogel WH, Shah PJ. Managing Drug Interactions in Cancer Therapy: A Guide for the Advanced Practitioner. J Adv Pract Oncol 2017; 8:609-620. [PMID: 30310722 PMCID: PMC6167087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Mrs. P is a 30-year-old woman who presented to our bone marrow transplant program with myelodysplastic syndrome (MDS). She received a haploidentical allogeneic stem cell transplant with a conditioning regimen consisting of busulfan and cyclophosphamide. This treatment was followed by post-transplant immunosuppression for graft-versus-host disease (GVHD) with cyclophosphamide, mycophenolate mofetil (MMF), and tacrolimus (see Table 1 for medication list). Tacrolimus levels were monitored twice a week with adjustment to a goal range of between 5 and 10 ng/mL. We initiated tacrolimus at a dose of 0.03 mg/kg by mouth twice daily (rounded to 2 mg by mouth twice daily). Drug interactions were assessed by the clinical pharmacist prior to admission, routinely with medication changes, and then upon discharge.
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Affiliation(s)
| | | | - Pooja J. Shah
- Department of Pharmacy, Wake Forest Baptist Health Medical Center, Winston-Salem, North Carolina
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17
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Gay C, Toulet D, Le Corre P. Pharmacokinetic drug-drug interactions of tyrosine kinase inhibitors: A focus on cytochrome P450, transporters, and acid suppression therapy. Hematol Oncol 2016; 35:259-280. [DOI: 10.1002/hon.2335] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/04/2016] [Accepted: 07/04/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Caroline Gay
- Pôle Pharmacie; Service Hospitalo-Universitaire de Pharmacie; CHU de Rennes Rennes Cedex France
| | - Delphine Toulet
- Pôle Pharmacie; Service Hospitalo-Universitaire de Pharmacie; CHU de Rennes Rennes Cedex France
| | - Pascal Le Corre
- Pôle Pharmacie; Service Hospitalo-Universitaire de Pharmacie; CHU de Rennes Rennes Cedex France
- Laboratoire de Pharmacie Galénique, Biopharmacie et Pharmacie Clinique; IRSET U1085, Faculté de Pharmacie, Université de Rennes 1; Rennes Cedex France
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18
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Tod M, Bourguignon L, Bleyzac N, Goutelle S. A Model for Predicting the Interindividual Variability of Drug-Drug Interactions. AAPS JOURNAL 2016; 19:497-509. [PMID: 27924615 DOI: 10.1208/s12248-016-0021-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/28/2016] [Indexed: 11/30/2022]
Abstract
Pharmacokinetic drug-drug interactions are frequently characterized and quantified by an AUC ratio (Rauc). The typical value of the AUC ratio in case of cytochrome-mediated interactions may be predicted by several approaches, based on in vitro or in vivo data. Prediction of the interindividual variability of Rauc would help to anticipate more completely the consequences of a drug-drug interaction. We propose and evaluate a simple approach for predicting the standard deviation (sd) of Ln(Rauc), a metric close to the interindividual coefficient of variation of Rauc. First, a model was derived to link sd(Ln Rauc) with the substrate fraction metabolized by each cytochrome and the potency of the interactors, in case of induction or inhibition. Second, the parameters involved in these equations were estimated by a Bayesian hierarchical model, using the data from 56 interaction studies retrieved from the literature. Third, the model was evaluated by several metrics based on the fold prediction error (PE) of sd(Ln Rauc). The median PE was 0.998 (the ideal value is 1) and the interquartile range was 0.96-1.03. The PE was in the acceptable interval (0.5 to 2) in 52 cases out of 56. Fourth, a surface plot of sd(Ln Rauc) as a function of the characteristics of the substrate and the interactor has been built. The minimal value of sd(Ln Rauc) was about 0.08 (obtained for Rauc = 1) while the maximal value, 0.7, was obtained for interactions involving highly metabolized substrates with strong interactors.
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Affiliation(s)
- M Tod
- Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France. .,EMR3738, Faculté de médecine Lyon-sud, Université Lyon 1, Lyon, France. .,Faculté de pharmacie, Université Lyon 1, Lyon, France.
| | - L Bourguignon
- Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France.,Faculté de pharmacie, Université Lyon 1, Lyon, France.,UMR CNRS 5558, Laboratoire de Biométrie et Biologie Evolutive, Université Lyon 1, Lyon, France
| | - N Bleyzac
- EMR3738, Faculté de médecine Lyon-sud, Université Lyon 1, Lyon, France.,Pharmacie, Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civils de Lyon, Lyon, France
| | - S Goutelle
- Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France.,Faculté de pharmacie, Université Lyon 1, Lyon, France.,UMR CNRS 5558, Laboratoire de Biométrie et Biologie Evolutive, Université Lyon 1, Lyon, France
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Tomita Y, Fukasawa S, Oya M, Uemura H, Shinohara N, Habuchi T, Rini BI, Chen Y, Bair AH, Ozono S, Naito S, Akaza H. Key predictive factors for efficacy of axitinib in first-line metastatic renal cell carcinoma: subgroup analysis in Japanese patients from a randomized, double-blind phase II study. Jpn J Clin Oncol 2016; 46:1031-1041. [PMID: 27572087 PMCID: PMC5091032 DOI: 10.1093/jjco/hyw103] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 06/03/2016] [Accepted: 07/03/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To conduct Japanese subgroup analyses of a randomized, global Phase II study of axitinib with and without dose titration in first-line metastatic renal cell carcinoma and to explore predictive factors for axitinib efficacy in first-line metastatic renal cell carcinoma. METHODS The data included 44 Japanese and 169 non-Japanese treatment-naïve patients with metastatic renal cell carcinoma. Patients received twice-daily axitinib 5 mg during a 4-week lead-in period. Patients who met the pre-defined randomization criteria were stratified by Eastern Cooperative Oncology Group performance status and randomly assigned (1:1) to axitinib or placebo titration. The primary endpoint was objective response rate; secondary endpoints included progression-free survival and safety. Predictive factors were analyzed using data from all patients. RESULTS The objective response rate (95% confidence interval) was 66% (50-80%) vs. 44% (36-52%) in Japanese and non-Japanese patients, respectively. At the primary analysis, median progression-free survival could not be estimated for Japanese patients, and was 27.6 months (95% confidence interval: 16.6-33.2) in an updated analysis. Hypertension, diarrhea, hand-foot syndrome, dysphonia, hypothyroidism and proteinuria were common adverse events in Japanese patients. Due to a small number of randomized patients, effects of axitinib dose titration could not sufficiently be confirmed among Japanese patients. The multivariate analysis identified time from histopathological diagnosis to treatment and sum of the longest diameter for target lesion at baseline as independent predictive factors for progression-free survival. CONCLUSIONS Axitinib is effective and well tolerated as first-line metastatic renal cell carcinoma therapy in Japanese patients. Predictive factors for axitinib efficacy endpoints identified in this setting warrant further investigation.
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Affiliation(s)
- Yoshihiko Tomita
- Department of Urology, Yamagata University Faculty of Medicine, Yamagata
| | - Satoshi Fukasawa
- Prostate Center and Division of Urology, Chiba Cancer Center, Chiba
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Tokyo
| | - Hirotsugu Uemura
- Department of Urology, Kinki University School of Medicine, Osaka
| | - Nobuo Shinohara
- Department of Urology, Hokkaido University Graduate School of Medicine, Hokkaido
| | - Tomonori Habuchi
- Department of Urology, Akita University School of Medicine, Akita, Japan
| | - Brian I. Rini
- Department of Solid Tumor Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
| | | | | | - Seiichiro Ozono
- Department of Urology, Hamamatsu University School of Medicine, Shizuoka
| | - Seiji Naito
- Department of Urology, Kyushu University, Graduate School of Medical Sciences, Fukuoka
| | - Hideyuki Akaza
- Strategic Investigation on Comprehensive Cancer Network, Interfaculty Initiative in Information Studies/Graduate School of Interdisciplinary Information Studies, The University of Tokyo, Tokyo, Japan
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Abstract
Scientists have identified the impact of angiogenesis on tumor growth and survival. Among other efficient drugs, several small-molecule tyrosine kinase inhibitors (TKIs) targeting the vascular endothelial growth factor receptor (VEGFR) have been developed and have already been integrated into the treatment of various advanced malignancies. This review provides a compilation of current knowledge on the pharmacokinetic aspects of all VEGFR-TKIs already approved by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) and of those still under investigation. Additional information on substance metabolism, potential for drug-drug interactions (DDIs), and the need for dose adaptation in patients with predominant renal and/or hepatic impairment has been included. All TKIs introduced in this review were administered orally, allowing for easy drug handling for healthcare professionals and patients. For almost all substances, the maximum plasma concentrations were reached within a short period of time. The majority of the substances showed a high plasma protein binding and their excretion occurred via the feces and, to a lesser extent, via the urine. In most cases, dose adaptation in patients with mild to moderate renal or hepatic impairment is not recommended. Cytochrome P450 (CYP) 3A4 was found to play a crucial role in the drug metabolic processes of many compounds. In order to prevent unwanted DDIs, co-administration of VEGFR TKIs together with CYP3A4 inhibitors or inducers should be avoided. Throughout all TKIs, the data indicate high inter-individual variability. The causes of this are still unclear and require further research to allow for individualization of treatment regimens.
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Abstract
Axitinib (Inlyta(®)) is a potent, selective inhibitor of vascular endothelial growth factor receptor-1, -2 and -3. This article reviews the clinical efficacy and tolerability of axitinib in patients with previously-treated advanced renal cell carcinoma (RCC), as well as summarizing its pharmacological properties. Axitinib was effective in the second-line treatment of advanced RCC, according to the results of the pivotal, phase III AXIS trial. Median progression-free survival (PFS) was significantly prolonged with axitinib versus sorafenib (primary endpoint; independent review committee assessment); this PFS benefit was seen in patients who had received prior treatment with cytokines or sunitinib. The objective response rate was also significantly higher with axitinib than with sorafenib, with no significant between-group difference in median overall survival. Axitinib had a manageable tolerability profile in the AXIS trial, with the most commonly reported treatment-related adverse events including diarrhoea, hypertension, fatigue, decreased appetite, nausea, dysphonia, hand-foot syndrome and hypothyroidism. In conclusion, axitinib is an important option in previously-treated patients with advanced RCC.
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22
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Kiyota N, Schlumberger M, Muro K, Ando Y, Takahashi S, Kawai Y, Wirth L, Robinson B, Sherman S, Suzuki T, Fujino K, Gupta A, Hayato S, Tahara M. Subgroup analysis of Japanese patients in a phase 3 study of lenvatinib in radioiodine-refractory differentiated thyroid cancer. Cancer Sci 2015; 106:1714-21. [PMID: 26426092 PMCID: PMC4714672 DOI: 10.1111/cas.12826] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/16/2015] [Accepted: 09/18/2015] [Indexed: 12/23/2022] Open
Abstract
Lenvatinib significantly prolonged progression-free survival (PFS) versus placebo in patients with radioiodine-refractory differentiated thyroid cancer (RR-DTC) in the phase 3 Study of (E7080) Lenvatinib in Differentiated Cancer of the Thyroid (SELECT) trial. This subanalysis evaluated the efficacy and safety of lenvatinib in Japanese patients who participated in SELECT. Outcomes for Japanese patients (lenvatinib, n = 30; placebo, n = 10) were assessed in relationship to the SELECT population (lenvatinib, n = 261; placebo, n = 131). The primary endpoint was PFS; secondary endpoints included overall survival, overall response rate, and safety. Lenvatinib PFS benefit was shown in Japanese patients (median PFS: lenvatinib, 16.5 months; placebo, 3.7 months), although significance was not reached, presumably due to sample size (hazard ratio, 0.39; 95% confidence interval, 0.10-1.57; P = 0.067). Overall response rates were 63.3% and 0% for lenvatinib and placebo, respectively. No significant difference was found in overall survival. The lenvatinib safety profile was similar between the Japanese and overall SELECT population, except for higher incidences of hypertension (any grade: Japanese, 87%; overall, 68%; grade ≥3: Japanese, 80%; overall, 42%), palmar-plantar erythrodysesthesia syndrome (any grade: Japanese, 70%; overall, 32%; grade ≥3: Japanese, 3%; overall, 3%), and proteinuria (any grade: Japanese, 63%; overall, 31%; grade ≥3: Japanese, 20%; overall, 10%). Japanese patients had more dose reductions (Japanese, 90%; overall, 67.8%), but fewer discontinuations due to adverse events (Japanese, 3.3%; overall, 14.2%). There was no difference in lenvatinib exposure between the Japanese and overall SELECT populations after adjusting for body weight. In Japanese patients with radioiodine-refractory differentiated thyroid cancer, lenvatinib showed similar clinical outcomes to the overall SELECT population. Some differences in adverse event frequencies and dose modifications were observed. Clinical trial registration no.: NCT01321554.
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Affiliation(s)
- Naomi Kiyota
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Japan
| | - Martin Schlumberger
- Department of Nuclear Medicine and Endocrine Oncology, Gustave Roussy and University Paris-Sud, Villejuif, France
| | - Kei Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Yuichi Ando
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Japan
| | - Shunji Takahashi
- Department of Medical Oncology, Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Yasukazu Kawai
- Department of Hematology and Oncology, Fukui Prefectural Hospital, Fukui, Japan
| | - Lori Wirth
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bruce Robinson
- Kolling Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Steven Sherman
- Department of Endocrine Neoplasia and Hormonal Disorders, Division of Internal Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Takuya Suzuki
- Oncology Clinical Development, Eisai Co., Ltd, Tokyo, Japan
| | | | | | | | - Makoto Tahara
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
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Teo YL, Ho HK, Chan A. Metabolism-related pharmacokinetic drug-drug interactions with tyrosine kinase inhibitors: current understanding, challenges and recommendations. Br J Clin Pharmacol 2015; 79:241-53. [PMID: 25125025 PMCID: PMC4309630 DOI: 10.1111/bcp.12496] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/12/2014] [Indexed: 12/16/2022] Open
Abstract
Drug-drug interactions (DDIs) occur when a patient's response to the drug is modified by administration or co-exposure to another drug. The main cytochrome P450 (CYP) enzyme, CYP3A4, is implicated in the metabolism of almost all of the tyrosine kinase inhibitors (TKIs). Therefore, there is a substantial potential for interaction between TKIs and other drugs that modulate the activity of this metabolic pathway. Cancer patients are susceptible to DDIs as they receive many medications, either for supportive care or for treatment of toxicity. Differences in DDI outcomes are generally negligible because of the wide therapeutic window of common drugs. However for anticancer agents, serious clinical consequences may occur from small changes in drug metabolism and pharmacokinetics. Therefore, the objective of this review is to highlight the current understanding of DDIs among TKIs, with a focus on metabolism, as well as to identify challenges in the prediction of DDIs and provide recommendations.
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Affiliation(s)
- Yi Ling Teo
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
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Munson MC. Introduction to Kinase Antitargets. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2015. [DOI: 10.1002/9783527673643.ch15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Qin S, Bi F, Jin J, Cheng Y, Guo J, Ren X, Huang Y, Tarazi J, Tang J, Chen C, Kim S, Ye D. Axitinib versus sorafenib as a second-line therapy in Asian patients with metastatic renal cell carcinoma: results from a randomized registrational study. Onco Targets Ther 2015; 8:1363-73. [PMID: 26089686 PMCID: PMC4467642 DOI: 10.2147/ott.s83302] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background This registrational trial evaluated the efficacy, safety, and patient-reported outcomes of axitinib versus sorafenib as a second-line treatment in Asian patients with clear-cell metastatic renal cell carcinoma (mRCC). Methods In this open-label, multicenter study, previously treated Asian patients with clear-cell mRCC were stratified by Eastern Cooperative Oncology Group performance status and prior therapy and randomized in a 2:1 ratio to receive axitinib (5 mg twice daily) or sorafenib (400 mg twice daily). The primary end point was progression-free survival (PFS) assessed by a masked independent review committee. Results A total of 204 Asian patients received axitinib (n=135) or sorafenib (n=69). Median PFS (95% confidence interval [CI]) was 6.5 (4.7–9.1) months with axitinib versus 4.8 (3.0–6.5) months with sorafenib (hazard ratio, 0.731; 95% CI, 0.506–1.058; one-sided P=0.0531). The objective response rate (95% CI) was 23.7% (16.8%–31.8%) with axitinib versus 10.1% (4.2%–19.8%) with sorafenib. Common, grade ≥3, all-causality adverse events were hypertension (19.3%), weight decrease (5.2%), and proteinuria (5.2%) with axitinib and hypertension (8.7%) and palmar-plantar erythrodysesthesia (7.2%) with sorafenib. In a time-to-deterioration composite end point of death, progression, and worsening of Functional Assessment of Cancer Therapy Kidney Symptom Index score, patients treated with axitinib demonstrated a 17%–24% risk reduction compared with sorafenib-treated patients. Conclusion Axitinib is clinically active and well tolerated in previously treated Asian patients with mRCC, consistent with the results from the global Phase III trial. These results establish axitinib as a second-line treatment option for Asian patients with mRCC.
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Affiliation(s)
- Shukui Qin
- Department of Medical Oncology, PLA Cancer Center, Nanjing Bayi Hospital, Nanjing, Jiangsu, People's Republic of China
| | - Feng Bi
- Department of Medical Oncology, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Jie Jin
- Department of Urology, Peking University First Hospital, Beijing, People's Republic of China
| | - Ying Cheng
- Department of Oncology, Jilin Provincial Cancer Hospital, Changchun, Jilin Province, People's Republic of China
| | - Jun Guo
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital/Institute, Beijing, People's Republic of China
| | - Xiubao Ren
- Department of Biology Treatment, Tianjin Oncology Hospital, Tianjin, People's Republic of China
| | - Yiran Huang
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jamal Tarazi
- Clinical Development, Pfizer Oncology, San Diego, CA, USA
| | - Jie Tang
- Global Outcomes Research, Pfizer Inc., New York, NY, USA
| | - Connie Chen
- Global Outcomes Research, Pfizer Inc., New York, NY, USA
| | - Sinil Kim
- Clinical Development, Pfizer Oncology, San Diego, CA, USA
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
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Zakharia Y, Zakharia K, Rixe O. Axitinib: from preclinical development to future clinical perspectives in renal cell carcinoma. Expert Opin Drug Discov 2015; 10:925-35. [DOI: 10.1517/17460441.2015.1045411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yousef Zakharia
- 1University of Iowa Division of Hematology/Oncology and Holden Comprehensive Cancer Center, Iowa City, Iowa, USA
| | - Kais Zakharia
- 2Mayo Clinic College of Medicine - Division of Gastroenterology and Hepatology, Rochester, Minnesota, USA
| | - Olivier Rixe
- 3University of New Mexico Cancer Center, Division of Hematology/Oncology, Albuquerque, New Mexico, USA
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27
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Chen Y, Suzuki A, Tortorici MA, Garrett M, LaBadie RR, Umeyama Y, Pithavala YK. Axitinib plasma pharmacokinetics and ethnic differences. Invest New Drugs 2015; 33:521-32. [PMID: 25663295 DOI: 10.1007/s10637-015-0214-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 01/28/2015] [Indexed: 12/29/2022]
Abstract
Axitinib, a potent and selective tyrosine kinase inhibitor of vascular endothelial growth factor receptors 1, 2, and 3, showed improved progression-free survival over sorafenib in patients previously treated for advanced renal cell carcinoma in the AXIS trial. Although a few studies had established the efficacy and safety of axitinib in Asian patients, additional evaluation was necessary to obtain regulatory approval in several Asian countries, especially in light of ethnic differences that are known to exist in genetic polymorphisms for metabolizing enzymes such as cytochrome P450 (CYP) 3A5, CYP2C19 and uridine diphosphate glucuronosyltransferase (UGT) 1A1, which are involved in axitinib metabolism. Axitinib plasma pharmacokinetics following single or multiple administration of oral axitinib in Asian (Japanese or Chinese) healthy subjects as well as Asian patients with advanced solid tumors was compared with that obtained in Caucasians. Upon review, the data demonstrated that axitinib can be characterized as not sensitive to ethnic factors based on its pharmacokinetic and pharmacodynamic properties. Axitinib exhibited similar pharmacokinetics in Asian and non-Asian subjects. A pooled population pharmacokinetic analysis indicated lack of a clinically meaningful effect of ethnicity on axitinib disposition. Therefore, dose adjustment for axitinib on the basis of ethnicity is not currently warranted.
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Affiliation(s)
- Ying Chen
- Clinical Pharmacology, Pfizer Inc, 10555 Science Center Drive, San Diego, CA, 92121, USA
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Borst DL, Arruda LS, MacLean E, Pithavala YK, Morgado JE. Common questions regarding clinical use of axitinib in advanced renal cell carcinoma. Am J Health Syst Pharm 2015; 71:1092-6. [PMID: 24939498 DOI: 10.2146/ajhp130581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE An overview of the responses to some of the most frequently asked questions regarding axitinib administration and dosage modifications used in clinical practice are presented. SUMMARY Axitinib was approved for second-line treatment of advanced renal cell carcinoma by the Food and Drug Administration on January 27, 2012. Inquiries received over the first six months after the approval date were reviewed. A large number of questions were related to administration of axitinib in different patient populations or in patients with various comorbidities, such as its (1) use in patients unable to swallow oral medication or administration of axitinib via a nasogastric tube, (2) use in patients with renal or hepatic impairment, (3) central nervous system penetration and use in patients with brain metastases, (4) drug interactions, particularly with anticoagulants, and (5) dosage modifications. Responses to these inquiries were provided based on the published literature or from data on file from the manufacturer. The dosage of axitinib can be adjusted for use in patients with hepatic impairment or in patients who cannot otherwise tolerate the usual regimen. Patients taking concomitant warfarin can also take axitinib, and patients who cannot swallow oral medications can receive a liquid formulation of the drug, though its efficacy and comparability to the tablet formulation has not been tested. CONCLUSION Based on the published literature and company data on file, the axitinib dosage may be modified to accommodate patients with renal or hepatic impairment, who cannot swallow oral medication, are receiving concomitant warfarin, or who cannot otherwise tolerate the standard dosage regimen. For patients who cannot swallow, an oral suspension can be prepared because crushing axitinib is not recommended.
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Affiliation(s)
- Diane L Borst
- Diane L. Borst, Pharm.D., is Director, Regional Medical Research Specialists, U.S. Medical Affairs, Pfizer, New York, NY. Lillian S. Arruda, Ph.D., is Associate Director, Oncology Medical Information, Pfizer, Collegeville, PA. Elizabeth MacLean, Pharm.D., is Director, U.S. Health Economics and Outcomes Research-Oncology, Pfizer, New York, NY. Yazdi K. Pithavala, Ph.D., is Senior Director, Clinical Pharmacology, Pfizer, San Diego, CA. James E. Morgado, B.Sc., is Principal Scientist, Chemistry-Analytics, Pfizer, Groton, CT.
| | - Lillian S Arruda
- Diane L. Borst, Pharm.D., is Director, Regional Medical Research Specialists, U.S. Medical Affairs, Pfizer, New York, NY. Lillian S. Arruda, Ph.D., is Associate Director, Oncology Medical Information, Pfizer, Collegeville, PA. Elizabeth MacLean, Pharm.D., is Director, U.S. Health Economics and Outcomes Research-Oncology, Pfizer, New York, NY. Yazdi K. Pithavala, Ph.D., is Senior Director, Clinical Pharmacology, Pfizer, San Diego, CA. James E. Morgado, B.Sc., is Principal Scientist, Chemistry-Analytics, Pfizer, Groton, CT
| | - Elizabeth MacLean
- Diane L. Borst, Pharm.D., is Director, Regional Medical Research Specialists, U.S. Medical Affairs, Pfizer, New York, NY. Lillian S. Arruda, Ph.D., is Associate Director, Oncology Medical Information, Pfizer, Collegeville, PA. Elizabeth MacLean, Pharm.D., is Director, U.S. Health Economics and Outcomes Research-Oncology, Pfizer, New York, NY. Yazdi K. Pithavala, Ph.D., is Senior Director, Clinical Pharmacology, Pfizer, San Diego, CA. James E. Morgado, B.Sc., is Principal Scientist, Chemistry-Analytics, Pfizer, Groton, CT
| | - Yazdi K Pithavala
- Diane L. Borst, Pharm.D., is Director, Regional Medical Research Specialists, U.S. Medical Affairs, Pfizer, New York, NY. Lillian S. Arruda, Ph.D., is Associate Director, Oncology Medical Information, Pfizer, Collegeville, PA. Elizabeth MacLean, Pharm.D., is Director, U.S. Health Economics and Outcomes Research-Oncology, Pfizer, New York, NY. Yazdi K. Pithavala, Ph.D., is Senior Director, Clinical Pharmacology, Pfizer, San Diego, CA. James E. Morgado, B.Sc., is Principal Scientist, Chemistry-Analytics, Pfizer, Groton, CT
| | - James E Morgado
- Diane L. Borst, Pharm.D., is Director, Regional Medical Research Specialists, U.S. Medical Affairs, Pfizer, New York, NY. Lillian S. Arruda, Ph.D., is Associate Director, Oncology Medical Information, Pfizer, Collegeville, PA. Elizabeth MacLean, Pharm.D., is Director, U.S. Health Economics and Outcomes Research-Oncology, Pfizer, New York, NY. Yazdi K. Pithavala, Ph.D., is Senior Director, Clinical Pharmacology, Pfizer, San Diego, CA. James E. Morgado, B.Sc., is Principal Scientist, Chemistry-Analytics, Pfizer, Groton, CT
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Ioka T, Okusaka T, Ohkawa S, Boku N, Sawaki A, Fujii Y, Kamei Y, Takahashi S, Namazu K, Umeyama Y, Bycott P, Furuse J. Efficacy and safety of axitinib in combination with gemcitabine in advanced pancreatic cancer: subgroup analyses by region, including Japan, from the global randomized Phase III trial. Jpn J Clin Oncol 2015; 45:439-48. [PMID: 25647781 PMCID: PMC4412139 DOI: 10.1093/jjco/hyv011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/12/2015] [Indexed: 02/07/2023] Open
Abstract
Objective Axitinib is a potent and selective inhibitor of vascular endothelial growth factor receptors 1–3. This analysis compared efficacy and safety of axitinib plus gemcitabine in patients with advanced pancreatic cancer from Japan, North America and the European Union, enrolled in a randomized Phase III study. Methods Patients (n = 632), stratified by disease extent, were randomly assigned (1:1) to receive axitinib/gemcitabine or placebo/gemcitabine. Axitinib was administered at a starting dose of 5 mg orally twice daily and gemcitabine at 1000 mg/m2 once weekly for 3 weeks in 4 week cycles. Primary endpoint was overall survival. Results Among Japanese patients, median overall survival was not estimable (95% confidence interval, 7.4 months—not estimable) with axitinib/gemcitabine (n = 58) and 9.9 months (95% confidence interval, 7.4–10.5) with placebo/gemcitabine (n = 56) (hazard ratio 1.093 [95% confidence interval, 0.525–2.274]). Median survival follow-up (range) was 5.1 months (0.02–12.3) with axitinib/gemcitabine vs. 5.4 months (1.8–10.5) with placebo/gemcitabine. Similarly, no difference was detected in overall survival between axitinib/gemcitabine and placebo/gemcitabine in patients from North America or the European Union. Common adverse events with axitinib/gemcitabine in Japanese patients were fatigue, anorexia, dysphonia, nausea and decreased platelet count. Axitinib safety profile was generally similar in patients from the three regions, although there were differences in incidence of some adverse events. An exploratory analysis did not show any correlation between axitinib/gemcitabine-related hypertension and overall survival. Conclusions Axitinib/gemcitabine, while tolerated, did not provide survival benefit over gemcitabine alone in patients with advanced pancreatic cancer from Japan or other regions.
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Affiliation(s)
- Tatsuya Ioka
- Department of Hepatobiliary and Pancreatic Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka
| | - Takuji Okusaka
- Hepatobiliary and Pancreatic Oncology Division, National Cancer Center Hospital, Tokyo
| | - Shinichi Ohkawa
- Department of Gastroenterology, Kanagawa Cancer Center, Kanagawa
| | - Narikazu Boku
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - Akira Sawaki
- Department of Clinical Oncology, Kawasaki Medical School, Okayama
| | | | | | | | | | | | | | - Junji Furuse
- Department of Medical Oncology, Kyorin University School of Medicine, Tokyo, Japan
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Namekawa T, Fukasawa S, Komaru A, Kobayashi M, Ohzeki T, Sato Y, Rii J, Uemura H, Ichikawa T, Ueda T. Efficacy and Safety of Axitinib as First-Line Therapy in Japanese Patients with Metastatic Renal Cell Carcinoma. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jct.2015.68074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cohen EEW, Tortorici M, Kim S, Ingrosso A, Pithavala YK, Bycott P. A Phase II trial of axitinib in patients with various histologic subtypes of advanced thyroid cancer: long-term outcomes and pharmacokinetic/pharmacodynamic analyses. Cancer Chemother Pharmacol 2014; 74:1261-70. [PMID: 25315258 PMCID: PMC4236619 DOI: 10.1007/s00280-014-2604-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 10/03/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE Axitinib, a potent and selective second-generation inhibitor of vascular endothelial growth factor receptors, has shown activity in advanced thyroid cancer in a Phase II study. We report updated overall survival and pharmacokinetic/pharmacodynamic (PK/PD) analyses from the study. METHODS Patients (N = 60) with advanced thyroid cancer of any histology for whom iodine-131 ((131)I) failed to control the disease or (131)I was not appropriate therapy were administered axitinib 5 mg twice daily. Objective response rate (primary endpoint), duration of response, progression-free survival, overall survival, safety, and PK/PD relationships were assessed. RESULTS Objective response rate was 38 % [23 partial responses; 95 % confidence interval (CI) 26-52], and 18 (30 %) patients had stable disease lasting ≥16 weeks. Responses occurred in all histologic subtypes. With median follow-up of 34 months (95 % CI 32-37), median overall survival was 35 months (95 % CI 19-not estimable), median progression-free survival was 15 months (95 % CI 10-20), and median duration of response was 21 months (95 % CI 13-46). Most common Grade 3/4 treatment-related adverse events included hypertension (13 %), proteinuria (8 %), diarrhea (7 %), weight decrease (7 %), and fatigue (5 %). PK/PD analyses revealed trends toward greater tumor size reduction and response probability with higher axitinib plasma exposures. CONCLUSIONS Axitinib appears active and well tolerated in patients with various histologic subtypes of advanced thyroid cancer, demonstrating durable responses and long overall survival. Axitinib may be useful for the treatment of advanced thyroid cancer.
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Affiliation(s)
- E E W Cohen
- Division of Biological Sciences, University of Chicago, Chicago, IL, USA,
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Shao J, Markowitz JS, Bei D, An G. Enzyme-Transporter-Mediated Drug Interactions with Small Molecule Tyrosine Kinase Inhibitors. J Pharm Sci 2014; 103:3810-3833. [DOI: 10.1002/jps.24113] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/11/2014] [Accepted: 07/14/2014] [Indexed: 12/19/2022]
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Garrett M, Poland B, Brennan M, Hee B, Pithavala YK, Amantea MA. Population pharmacokinetic analysis of axitinib in healthy volunteers. Br J Clin Pharmacol 2014; 77:480-92. [PMID: 23834452 DOI: 10.1111/bcp.12206] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 06/18/2013] [Indexed: 11/29/2022] Open
Abstract
AIMS Axitinib is a potent and selective second generation inhibitor of vascular endothelial growth factor receptors 1, 2 and 3 approved for second line treatment of advanced renal cell carcinoma. The objectives of this analysis were to assess plasma pharmacokinetics and identify covariates that may explain variability in axitinib disposition following single dose administration in healthy volunteers. METHODS Plasma concentration-time data from 337 healthy volunteers in 10 phase I studies were analyzed, using non-linear mixed effects modelling (nonmem) to estimate population pharmacokinetic parameters and evaluate relationships between parameters and food, formulation, demographic factors, measures of renal and hepatic function and metabolic genotypes (UGT1A1*28 and CYP2C19). RESULTS A two compartment structural model with first order absorption and lag time best described axitinib pharmacokinetics. Population estimates for systemic clearance (CL), central volume of distribution (Vc ), absorption rate constant (ka ) and absolute bioavailability (F) were 17.0 l h(-1) , 45.3 l, 0.523 h(-1) and 46.5%, respectively. With axitinib Form IV, ka and F increased in the fasted state by 207% and 33.8%, respectively. For Form XLI (marketed formulation), F was 15% lower compared with Form IV. CL was not significantly influenced by any of the covariates studied. Body weight significantly affected Vc , but the effect was within the estimated interindividual variability for Vc . CONCLUSIONS The analysis established a model that adequately characterizes axitinib pharmacokinetics in healthy volunteers. Vc was found to increase with body weight. However, no change in plasma exposures is expected with change in body weight; hence no dose adjustment is warranted.
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Affiliation(s)
- May Garrett
- Pfizer Global Pharmacometrics, San Diego, CA, USA
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Pharmacokinetics of single-agent axitinib across multiple solid tumor types. Cancer Chemother Pharmacol 2014; 74:1279-89. [PMID: 25336084 DOI: 10.1007/s00280-014-2606-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 10/07/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE Axitinib, a potent and selective inhibitor of vascular endothelial growth factor receptors, showed antitumor activity as a single agent against several solid tumor types in Phase II and III trials. This study was conducted to evaluate axitinib pharmacokinetics across a variety of solid tumors. METHODS The current study analyzed the pharmacokinetics of axitinib in 110 patients with non-small cell lung cancer (NSCLC), thyroid cancer, or melanoma from three Phase II trials plus 127 healthy volunteers, using nonlinear mixed-effects modeling. Boxplots of maximum observed plasma concentration (C max) and area under the plasma concentration-time curve (AUC) of data from these tumor populations was compared to C max and AUC from the final population pharmacokinetic model developed for metastatic renal cell carcinoma (mRCC) to compare axitinib pharmacokinetics across different tumor types. RESULTS Axitinib disposition based on data from 237 subjects was best described using a two-compartment model with first-order absorption and lag time. Population estimates for systemic clearance, central volume of distribution, absorption rate constant, absolute bioavailability, and lag time were 20.1 L/h, 56.2 L, 1.26/h(-1), 0.663, and 0.448 h, respectively. Statistically significant covariates included gender on clearance, and body weight on central volume of distribution. However, predicted changes due to gender and body weight were found not clinically meaningful. The final analysis indicated that the pharmacokinetic model for mRCC was able to successfully describe axitinib pharmacokinetics in patients with NSCLC, thyroid cancer, and melanoma. CONCLUSION The pharmacokinetics of axitinib appears to be similar across a variety of tumor types.
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van Leeuwen RWF, van Gelder T, Mathijssen RHJ, Jansman FGA. Drug-drug interactions with tyrosine-kinase inhibitors: a clinical perspective. Lancet Oncol 2014; 15:e315-26. [PMID: 24988935 DOI: 10.1016/s1470-2045(13)70579-5] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In the past decade, many tyrosine-kinase inhibitors have been introduced in oncology and haemato-oncology. Because this new class of drugs is extensively used, serious drug-drug interactions are an increasing risk. In this Review, we give a comprehensive overview of known or suspected drug-drug interactions between tyrosine-kinase inhibitors and other drugs. We discuss all haemato-oncological and oncological tyrosine-kinase inhibitors that had been approved by Aug 1, 2013, by the US Food and Drug Administration or the European Medicines Agency. Various clinically relevant drug interactions with tyrosine-kinase inhibitors have been identified. Most interactions concern altered bioavailability due to altered stomach pH, metabolism by cytochrome P450 isoenzymes, and prolongation of the QTc interval. To guarantee the safe use of tyrosine-kinase inhibitors, a drugs review for each patient is needed. This Review provides specific recommendations to guide haemato-oncologists, oncologists, and clinical pharmacists, through the process of managing drug-drug interactions during treatment with tyrosine-kinase inhibitors in daily clinical practice.
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Affiliation(s)
- Roelof W F van Leeuwen
- Department of Hospital Pharmacy, Erasmus University Medical Centre, Rotterdam, Netherlands
| | - Teun van Gelder
- Department of Hospital Pharmacy, Erasmus University Medical Centre, Rotterdam, Netherlands; Department of Internal Medicine, Erasmus University Medical Centre, Rotterdam, Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Centre, Rotterdam, Netherlands
| | - Frank G A Jansman
- Department of Clinical Pharmacy, Deventer Hospital, Deventer, Netherlands; Department of Pharmacotherapy and Pharmaceutical Care, University of Groningen, Groningen, Netherlands.
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Clinical pharmacokinetics of tyrosine kinase inhibitors: implications for therapeutic drug monitoring. Ther Drug Monit 2014; 35:562-87. [PMID: 24052062 DOI: 10.1097/ftd.0b013e318292b931] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The treatment of many malignancies has been improved in recent years by the introduction of molecular targeted therapies. These drugs interact preferentially with specific targets that are mutated and/or overexpressed in malignant cells. A group of such targets are the tyrosine kinases, against which a number of inhibitors (tyrosine kinase inhibitors, TKIs) have been developed. Imatinib, a TKI with targets that include the breakpoint cluster region-Abelson (bcr-abl) fusion protein kinase and mast/stem cell growth factor receptor kinase (c-Kit), was the first clinically successful drug of this type and revolutionized the treatment and prognosis of chronic myeloid leukemia and gastrointestinal stromal tumors. This success paved the way for the development of other TKIs for the treatment of a range of hematological malignancies and solid tumors. To date, 14 TKIs have been approved for clinical use and many more are under investigation. All these agents are given orally and are substrates of a range of drug transporters and metabolizing enzymes. In addition, some TKIs are capable of inhibiting their own transporters and metabolizing enzymes, making their disposition and metabolism at steady-state unpredictable. A given dose can therefore give rise to markedly different plasma concentrations in different patients, favoring the selection of resistant clones in the case of subtherapeutic exposure, and increasing the risk of toxicity if dosage is excessive. The aim of this review was to summarize current knowledge of the clinical pharmacokinetics and known adverse effects of the TKIs that are available for clinical use and to provide practical guidance on the implications of these data in patient management, in particular with respect to therapeutic drug monitoring.
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Verzoni E, Grassi P, Testa I, Iacovelli R, Biondani P, Garanzini E, De Braud F, Procopio G. Targeted treatments in advanced renal cell carcinoma: focus on axitinib. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2014; 7:107-16. [PMID: 24715765 PMCID: PMC3977458 DOI: 10.2147/pgpm.s37098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Antiangiogenesis options have evolved rapidly in the last few years, with an increasing number of agents currently approved by the US Food and Drug Administration and European Medicines Agency. Angiogenesis inhibitors have been shown to be very effective for the treatment of metastatic renal cancer cell. Axitinib is a third-generation inhibitor of vascular endothelial growth factor receptor and is currently being developed for the treatment of various malignancies. The pharmacokinetic properties of axitinib may have a selective therapeutic effect, with minimal adverse reactions and enhanced safety. In a large Phase III study of previously treated patients with metastatic renal cell carcinoma, axitinib achieved a longer progression-free survival than sorafenib with an acceptable safety profile and good quality of life. This review focuses on the pharmacology, pharmacokinetics, and clinical activity of axitinib in the current treatment of renal cell carcinoma. The role of axitinib in the adjuvant and/or neoadjuvant setting needs to be evaluated in further clinical trials.
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Affiliation(s)
- Elena Verzoni
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Paolo Grassi
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Isabella Testa
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Roberto Iacovelli
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Pamela Biondani
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Enrico Garanzini
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Filippo De Braud
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Giuseppe Procopio
- Department of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
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Bracarda S, Castellano D, Procopio G, Sepúlveda JM, Sisani M, Verzoni E, Schmidinger M. Axitinib safety in metastatic renal cell carcinoma: suggestions for daily clinical practice based on case studies. Expert Opin Drug Saf 2014; 13:497-510. [DOI: 10.1517/14740338.2014.888413] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen Y, Tortorici MA, Garrett M, Hee B, Klamerus KJ, Pithavala YK. Clinical pharmacology of axitinib. Clin Pharmacokinet 2014; 52:713-25. [PMID: 23677771 DOI: 10.1007/s40262-013-0068-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Axitinib is a potent and selective second-generation inhibitor of vascular endothelial growth factor receptors 1, 2, and 3 that is approved in the US and several other countries for treatment of patients with advanced renal cell carcinoma after failure of one prior systemic therapy. The recommended clinical starting dose of axitinib is 5 mg twice daily, taken with or without food. Dose increase (up to a maximum of 10 mg twice daily) or reduction is permitted based on individual tolerability. Axitinib pharmacokinetics are dose-proportional within 1-20 mg twice daily, which includes the clinical dose range. Axitinib has a short effective plasma half-life (range 2.5-6.1 h), and the plasma accumulation of axitinib is in agreement with what is expected based on the plasma half-life of the drug. Axitinib is absorbed relatively rapidly, reaching maximum observed plasma concentrations (C max) within 4 h of oral administration. The mean absolute bioavailability of axitinib is 58 %. Axitinib is highly (>99 %) bound to human plasma proteins with preferential binding to albumin and moderate binding to α1-acid glycoprotein. In patients with advanced renal cell carcinoma, at the 5-mg twice-daily dose in the fed state, the geometric mean (% coefficient of variation) C max and area under the plasma concentration-time curve (AUC) from time 0-24 h (AUC24) were 27.8 ng/mL (79 %) and 265 ng·h/mL (77 %), respectively. Axitinib is metabolized primarily in the liver by cytochrome P450 (CYP) 3A4/5 and, to a lesser extent (<10 % each), by CYP1A2, CYP2C19, and uridine diphosphate glucuronosyltransferase (UGT) 1A1. The two major human plasma metabolites, M12 (sulfoxide product) and M7 (glucuronide product), are considered pharmacologically inactive. Axitinib is eliminated via hepatobiliary excretion with negligible urinary excretion. Although mild hepatic impairment does not affect axitinib plasma exposures compared with subjects with normal hepatic function, there was a 2-fold increase in AUC from time zero to infinity (AUC∞) following a single 5-mg dose in subjects with moderate hepatic impairment. In the presence of ketoconazole, a strong CYP3A4/5 inhibitor, axitinib C max and AUC∞ increased by 1.5- and 2-fold, respectively, whereas co-administration of rifampin, a strong CYP3A4/5 inducer, resulted in a 71 and 79 % decrease in the C max and AUC∞, respectively. Axitinib does not inhibit CYP3A4/5, CYP1A2, CYP2C8, CYP2A6, CYP2C9, CYP2C19, CYP2D6, CYP2E1, or UGT1A1 at concentrations obtained with the clinical doses and is not expected to have major interactions with drugs that are metabolized by these enzymes. Axitinib is an inhibitor of the efflux transporter P-glycoprotein (P-gp) in vitro, but is not expected to inhibit P-gp at therapeutic plasma concentrations. A two-compartment population pharmacokinetic model with first-order absorption and lag time was used to describe axitinib pharmacokinetics. No clinically relevant effects of age, sex, body weight, race, renal function, UGT1A1 genotype, or CYP2C19 inferred phenotype on the clearance of axitinib were identified.
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Affiliation(s)
- Ying Chen
- Clinical Pharmacology, Pfizer Inc., 10555 Science Center Drive, San Diego, CA 92121, USA
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Smith BJ, Pithavala Y, Bu HZ, Kang P, Hee B, Deese AJ, Pool WF, Klamerus KJ, Wu EY, Dalvie DK. Pharmacokinetics, metabolism, and excretion of [14C]axitinib, a vascular endothelial growth factor receptor tyrosine kinase inhibitor, in humans. Drug Metab Dispos 2014; 42:918-31. [PMID: 24608633 DOI: 10.1124/dmd.113.056531] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The disposition of a single oral dose of 5 mg (100 μCi) of [(14)C]axitinib was investigated in fasted healthy human subjects (N = 8). Axitinib was rapidly absorbed, with a median plasma Tmax of 2.2 hours and a geometric mean Cmax and half-life of 29.2 ng/ml and 10.6 hours, respectively. The plasma total radioactivity-time profile was similar to that of axitinib but the AUC was greater, suggesting the presence of metabolites. The major metabolites in human plasma (0-12 hours), identified as axitinib N-glucuronide (M7) and axitinib sulfoxide (M12), were pharmacologically inactive, and with axitinib comprised 50.4%, 16.2%, and 22.5% of the radioactivity, respectively. In excreta, the majority of radioactivity was recovered in most subjects by 48 hours postdose. The median radioactivity excreted in urine, feces, and total recovery was 22.7%, 37.0%, and 59.7%, respectively. The recovery from feces was variable across subjects (range, 2.5%-60.2%). The metabolites identified in urine were M5 (carboxylic acid), M12 (sulfoxide), M7 (N-glucuronide), M9 (sulfoxide/N-oxide), and M8a (methylhydroxy glucuronide), accounting for 5.7%, 3.5%, 2.6%, 1.7%, and 1.3% of the dose, respectively. The drug-related products identified in feces were unchanged axitinib, M14/15 (mono-oxidation/sulfone), M12a (epoxide), and an unidentified metabolite, comprising 12%, 5.7%, 5.1%, and 5.0% of the dose, respectively. The proposed mechanism to form M5 involved a carbon-carbon bond cleavage via M12a, followed by rearrangement to a ketone intermediate and subsequent Baeyer-Villiger rearrangement, possibly through a peroxide intermediate. In summary, the study characterized axitinib metabolites in circulation and primary elimination pathways of the drug, which were mainly oxidative in nature.
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Affiliation(s)
- Bill J Smith
- Pharmacokinetics, Dynamics and Metabolism (B.J.S., H.-Z.B., P.K., W.F.P., E.Y.W., D.K.D.), Pfizer Oncology-Clinical Pharmacology (Y.P., B.H., K.J.K.), and Pharmaceutical Sciences (A.J.D.), Pfizer Inc., Worldwide Research and Development, La Jolla Laboratories, San Diego, CA
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Akaza H, Fukuyama T. Axitinib for the treatment of advanced renal cell carcinoma. Expert Opin Pharmacother 2013; 15:283-97. [PMID: 24328549 DOI: 10.1517/14656566.2014.868436] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Advanced understanding of the pathogenesis of renal cell carcinoma (RCC) has led to development and approval of several molecularly targeted therapies since 2005. Axitinib is a potent and selective inhibitor of vascular endothelial growth factor receptors 1, 2 and 3. In the randomized Phase III AXIS trial, axitinib significantly prolonged progression-free survival compared with sorafenib, respectively (6.7 vs 4.7 months; p < 0.0001), and improved objective response rate (19 vs 9%; p = 0.0001), resulting in its approval for advanced or metastatic RCC after failure of one systemic therapy. However, overall survival was similar with axitinib and sorafenib. Common adverse events associated with axitinib include diarrhea, hypertension and fatigue. AREAS COVERED The properties, clinical efficacy, adverse events, pharmacokinetics and pharmacodynamics of axitinib are summarized and its position in the overall therapeutic landscape for metastatic RCC among several targeted therapies is described. EXPERT OPINION Axitinib is generally well-tolerated and provides definitive clinical benefits in patients with advanced or metastatic RCC as second-line therapy. However, as with other tyrosine kinase inhibitors of the same class, axitinib does not prolong overall survival; therefore, selection of second-line tyrosine kinase inhibitor therapy, including axitinib, must be carefully considered to maximize outcomes for each patient.
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Affiliation(s)
- Hideyuki Akaza
- The University of Tokyo, Research Center for Advanced Science and Technology , Tokyo , Japan
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Abstract
Axitinib is a new inhibitor of vascular endothelial growth factor (VEGF) receptors 1-3, with greater inhibition potency than existing VEGF receptor inhibitors sunitinib, sorafenib and pazopanib. In a pivotal phase III trial in patients with advanced renal cell carcinoma that had progressed despite first-line therapy, axitinib 5 mg twice daily significantly prolonged median progression-free survival (primary endpoint) compared with sorafenib 400 mg twice daily. A significant between-group difference favouring axitinib over sorafenib in terms of progression-free survival was maintained in the subgroups of patients who had previously received cytokine or sunitinib therapy. However, median overall survival was not significantly different between the treatment groups. Significantly more axitinib than sorafenib recipients achieved an objective response, and axitinib therapy significantly prolonged time to deterioration (a composite endpoint of death, disease progression and symptom worsening) relative to sorafenib therapy. While its tolerability profile was generally consistent with that of other VEGF receptor inhibitors, axitinib was associated with a numerically lower incidence of palmar-plantar erythrodysaesthesia, cutaneous toxicity and anaemia than sorafenib in the phase III trial.
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Ueda T, Uemura H, Tomita Y, Tsukamoto T, Kanayama H, Shinohara N, Tarazi J, Chen C, Kim S, Ozono S, Naito S, Akaza H. Efficacy and safety of axitinib versus sorafenib in metastatic renal cell carcinoma: subgroup analysis of Japanese patients from the global randomized Phase 3 AXIS trial. Jpn J Clin Oncol 2013; 43:616-28. [PMID: 23630366 PMCID: PMC3664320 DOI: 10.1093/jjco/hyt054] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE Axitinib is a potent and selective second-generation inhibitor of vascular endothelial growth factor receptors 1, 2 and 3. The efficacy and safety of axitinib in Japanese patients with metastatic renal cell carcinoma were evaluated. METHODS A subgroup analysis was conducted in Japanese patients enrolled in the randomized Phase III trial of axitinib versus sorafenib after failure of one prior systemic therapy for metastatic renal cell carcinoma. RESULTS Twenty-five (of 361) and 29 (of 362) patients randomized to the axitinib and sorafenib arms, respectively, were Japanese and included in this analysis. Median progression-free survival in Japanese patients was 12.1 months (95% confidence interval 8.6 to not estimable) for axitinib and 4.9 months (95% confidence interval 2.8-6.6) for sorafenib (hazard ratio 0.390; 95% confidence interval 0.130-1.173; stratified one-sided P = 0.0401). The objective response rate was 52.0% for axitinib and 3.4% for sorafenib (P = 0.0001). The common all-causality adverse events (all grades) in Japanese patients were dysphonia (68%), hypertension (64%), hand-foot syndrome (64%) and diarrhea (56%) for axitinib, and hand-foot syndrome (86%), hypertension (62%) and diarrhea (52%) for sorafenib. The safety profiles of axitinib and sorafenib in Japanese patients were generally similar to those observed in the overall population, with the exceptions of higher incidences of hypertension, dysphonia, hand-foot syndrome, hypothyroidism and stomatitis. CONCLUSIONS Axitinib is efficacious and well tolerated in Japanese patients with previously treated metastatic renal cell carcinoma, consistent with the results in the overall population, providing a new targeted therapy for these Japanese patients.
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Affiliation(s)
- Takeshi Ueda
- Prostate Center and Division of Urology, Chiba Cancer Center, 666-2 Nitona-cho, Chuo-ku, Chiba-shi, Chiba 260-8717, Japan.
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Rini BI, Garrett M, Poland B, Dutcher JP, Rixe O, Wilding G, Stadler WM, Pithavala YK, Kim S, Tarazi J, Motzer RJ. Axitinib in metastatic renal cell carcinoma: results of a pharmacokinetic and pharmacodynamic analysis. J Clin Pharmacol 2013; 53:491-504. [PMID: 23553560 DOI: 10.1002/jcph.73] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Accepted: 12/31/2012] [Indexed: 11/09/2022]
Abstract
Axitinib is a potent and selective inhibitor of vascular endothelial growth factor receptors 1, 2, and 3, approved for second-line therapy for advanced renal cell carcinoma (RCC). Axitinib population pharmacokinetic and pharmacokinetic/pharmacodynamic relationships were evaluated. Using nonlinear mixed effects modeling with pooled data from 383 healthy volunteers, 181 patients with metastatic RCC, and 26 patients with other solid tumors in 17 trials, the disposition of axitinib was best described by a 2-compartment model with first-order absorption and a lag time, with estimated mean systemic clearance (CL) of 14.6 L/h and central volume of distribution (V(c)) of 47.3 L. Of 12 covariates tested, age over 60 years and Japanese ethnicity were associated with decreased CL, whereas V(c) increased with body weight. However, the magnitude of predicted changes in exposure based on these covariates does not warrant dose adjustments. Multivariate Cox proportional hazard regression and logistic regression analyses showed that higher exposure and diastolic blood pressure were independently associated with longer progression-free and overall survivals and higher probability of partial response in metastatic RCC patients. These findings support axitinib dose titration to increase plasma exposure in patients who tolerate axitinib, and also demonstrate diastolic blood pressure as a potential marker of efficacy.
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Affiliation(s)
- Brian I Rini
- Cleveland Clinic Taussig Cancer Institute, Cleveland, OH, USA.
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Mittal K, Wood LS, Rini BI. Axitinib in Metastatic Renal Cell Carcinoma. BIOLOGICS IN THERAPY 2012; 2:5. [PMID: 24392298 PMCID: PMC3873008 DOI: 10.1007/s13554-012-0005-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Indexed: 12/14/2022]
Abstract
Targeted agents have revolutionized the management of metastatic renal cell carcinoma (RCC). Axitinib, an inhibitor of vascular endothelial growth factor receptor (VEGFR), has been an important addition to currently available therapies for advanced RCC. Its ability to inhibit VEGFRs at nanomolar concentrations distinguishes it as a potent tyrosine kinase inhibitor, with increased selectivity for VEGFR-1, 2, and 3 at clinically applicable concentrations. The phase 3 AXIS trial has established its superiority in prolonging progression-free survival (PFS) in previously treated RCC patients (median PFS 6.7 months for axitinib vs. 4.7 months for sorafenib). Common toxicities of axitinib include hypertension, diarrhea, nausea, hand-foot syndrome, fatigue, and hypothyroidism. Axitinib-induced diastolic blood pressure elevation may be associated with improved clinical outcome, likely reflecting the “on-target” effect of axitinib. Dose escalation to achieve therapeutic plasma drug levels is of considerable clinical interest. Although axitinib has established efficacy in patients treated with one previous agent, its use in the frontline setting is currently the subject of ongoing research.
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Affiliation(s)
- Kriti Mittal
- Cleveland Clinic, Taussig Cancer Institute, 9500 Euclid Avenue Desk R 35, 44195 Cleveland, Ohio USA
| | - Laura S Wood
- Cleveland Clinic, Taussig Cancer Institute, 9500 Euclid Avenue Desk R 35, 44195 Cleveland, Ohio USA
| | - Brian I Rini
- Cleveland Clinic, Taussig Cancer Institute, 9500 Euclid Avenue Desk R 35, 44195 Cleveland, Ohio USA
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Martin LP, Kozloff MF, Herbst RS, Samuel TA, Kim S, Rosbrook B, Tortorici M, Chen Y, Tarazi J, Olszanski AJ, Rado T, Starr A, Cohen RB. Phase I study of axitinib combined with paclitaxel, docetaxel or capecitabine in patients with advanced solid tumours. Br J Cancer 2012; 107:1268-76. [PMID: 22996612 PMCID: PMC3494424 DOI: 10.1038/bjc.2012.407] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background: Axitinib, a potent and selective second-generation inhibitor of vascular endothelial growth factor receptors, enhanced the efficacy of chemotherapy in human xenograft tumour models. This phase I study investigated the safety, tolerability, pharmacokinetics and antitumour activity of axitinib combined with chemotherapy. Methods: A total of 42 patients with advanced solid tumours received a continuous axitinib starting dose of 5 mg twice daily (b.i.d.) plus paclitaxel (90 mg m–2 weekly), docetaxel (100 mg m–2 every 3 weeks) or capecitabine (1000 or 1250 mg m–2 b.i.d., days 1–14). Results: Common treatment-related adverse events across all cohorts were nausea (45.2%), hypertension (45.2%), fatigue (42.9%), diarrhoea (38.1%), decreased appetite (33.3%) and hand–foot syndrome (31.0%). There was one complete response, nine partial responses and seven patients with stable disease. Ten patients (23.8%) remained on therapy for >8 months. Paclitaxel and capecitabine pharmacokinetics were similar in the absence or presence of axitinib, but docetaxel exposure was increased in the presence of axitinib. Axitinib pharmacokinetics were similar in the absence or presence of co-administered agents. Conclusions: Axitinib combined with paclitaxel or capecitabine was well tolerated; no additive increase in toxicities was observed. Antitumour activity was observed for each treatment regimen and across multiple tumour types.
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Affiliation(s)
- L P Martin
- Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
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van Geel RM, Beijnen JH, Schellens JH. Concise drug review: pazopanib and axitinib. Oncologist 2012; 17:1081-9. [PMID: 22733795 PMCID: PMC3425526 DOI: 10.1634/theoncologist.2012-0055] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 05/22/2012] [Indexed: 11/17/2022] Open
Abstract
Pazopanib and axitinib are both U.S. Food and Drug Administration approved ATP-competitive inhibitors of the vascular endothelial growth factor receptor. Pazopanib and axitinib have been shown to be effective and tolerable treatment options for patients with metastatic renal cell cancer and therefore have enlarged the armamentarium for this disease. This concise drug review discusses the clinical benefits, clinical use, mechanism of action, bioanalysis, pharmacokinetics, pharmacogenetics, pharmacodynamics, drug resistance, toxicity, and patient instructions and recommendations for supportive care for these two drugs.
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Affiliation(s)
- Robin M.J.M. van Geel
- Division of Clinical Pharmacology, Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jos H. Beijnen
- Slotervaart Hospital, Department of Pharmacy, Amsterdam, The Netherlands
- Division of Biochemical Analysis, Division of Drug Toxicology, and
| | - Jan H.M. Schellens
- Division of Clinical Pharmacology, Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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Evaluation of the effect of food on the pharmacokinetics of axitinib in healthy volunteers. Cancer Chemother Pharmacol 2012; 70:103-12. [DOI: 10.1007/s00280-012-1888-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 05/09/2012] [Indexed: 10/28/2022]
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Ho TH, Jonasch E. Axitinib in the treatment of metastatic renal cell carcinoma. Future Oncol 2012; 7:1247-53. [PMID: 22044199 DOI: 10.2217/fon.11.107] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Axitinib, an oral small-molecule tyrosine kinase inhibitor targeted to angiogenesis, has demonstrated activity in advanced renal cell carcinoma. Common side effects include hypertension, fatigue and dysphonia. Axitinib is currently awaiting approval as a second-line agent in the treatment of advanced renal cell carcinoma. Trials, which include treatment-naive patients, are ongoing and will study the benefit of axitinib in the first-line setting.
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Affiliation(s)
- Thai H Ho
- Department of Cancer Medicine, MD Anderson Cancer Center, Houston, TX, USA
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Bukowski RM. Third generation tyrosine kinase inhibitors and their development in advanced renal cell carcinoma. Front Oncol 2012; 2:13. [PMID: 22655261 PMCID: PMC3356077 DOI: 10.3389/fonc.2012.00013] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 01/27/2012] [Indexed: 02/01/2023] Open
Abstract
Angiogenesis in general and the vascular endothelial growth factor (VEGF) signaling axis in particular is a validated target in renal cell carcinoma (RCC). Clear-cell carcinoma of the kidney is now recognized as a malignancy that is sensitive to inhibitors of the VEGF pathway. Treatment options for patients with metastatic renal cell carcinoma have evolved in dramatic fashion over the past 6 years, and a new paradigm has developed. The cytokines interferon-α and interleukin-2 were previously utilized for therapy, but since December 2005, six new agents have been approved in the United States for the treatment of advanced RCC. Two are tyrosine kinase inhibitors (TKI's) including sunitinib and recently pazopanib, and the multikinase inhibitor sorafenib. The current review examines the evolving data with the next generation of TKI's, axitinib and tivozanib being developed for the treatment of advanced RCC. These agents were synthesized to provide increased target specificity and enhanced target inhibition. The preclinical and clinical data are examined, an overview of the development of these TKI's is provided, and discussion plus speculation concerning their potential roles as RCC therapy is provided.
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Affiliation(s)
- Ronald M Bukowski
- Cleveland Clinic Taussig Cancer Center, Cleveland Clinic Lerner College of Medicine of CWRU Pepper Pike, OH, USA
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