1
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Cross B, Turner RM, Zhang JE, Pirmohamed M. Being precise with anticoagulation to reduce adverse drug reactions: are we there yet? THE PHARMACOGENOMICS JOURNAL 2024; 24:7. [PMID: 38443337 PMCID: PMC10914631 DOI: 10.1038/s41397-024-00329-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 02/11/2024] [Accepted: 02/15/2024] [Indexed: 03/07/2024]
Abstract
Anticoagulants are potent therapeutics widely used in medical and surgical settings, and the amount spent on anticoagulation is rising. Although warfarin remains a widely prescribed oral anticoagulant, prescriptions of direct oral anticoagulants (DOACs) have increased rapidly. Heparin-based parenteral anticoagulants include both unfractionated and low molecular weight heparins (LMWHs). In clinical practice, anticoagulants are generally well tolerated, although interindividual variability in response is apparent. This variability in anticoagulant response can lead to serious incident thrombosis, haemorrhage and off-target adverse reactions such as heparin-induced thrombocytopaenia (HIT). This review seeks to highlight the genetic, environmental and clinical factors associated with variability in anticoagulant response, and review the current evidence base for tailoring the drug, dose, and/or monitoring decisions to identified patient subgroups to improve anticoagulant safety. Areas that would benefit from further research are also identified. Validated variants in VKORC1, CYP2C9 and CYP4F2 constitute biomarkers for differential warfarin response and genotype-informed warfarin dosing has been shown to reduce adverse clinical events. Polymorphisms in CES1 appear relevant to dabigatran exposure but the genetic studies focusing on clinical outcomes such as bleeding are sparse. The influence of body weight on LMWH response merits further attention, as does the relationship between anti-Xa levels and clinical outcomes. Ultimately, safe and effective anticoagulation requires both a deeper parsing of factors contributing to variable response, and further prospective studies to determine optimal therapeutic strategies in identified higher risk subgroups.
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Affiliation(s)
- Benjamin Cross
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
| | - Richard M Turner
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
- GSK, Stevenage, Hertfordshire, SG1 2NY, UK
| | - J Eunice Zhang
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
| | - Munir Pirmohamed
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK.
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2
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Hindley B, Lip GYH, McCloskey AP, Penson PE. Pharmacokinetics and pharmacodynamics of direct oral anticoagulants. Expert Opin Drug Metab Toxicol 2023; 19:911-923. [PMID: 37991392 DOI: 10.1080/17425255.2023.2287472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
INTRODUCTION Direct oral anticoagulants (DOACs) have overtaken vitamin K antagonists to become the most widely used method of anticoagulation for most indications. Their stable and predictable pharmacokinetics combined with relatively simple dosing, and the absence of routine monitoring has made them an attractive proposition for healthcare providers. Despite the benefits of DOACs as a class, important differences exist between individual DOAC drugs in respect of their pharmacokinetic and pharmacodynamic profiles with implications for dosing and reversal in cases of major bleeding. AREAS COVERED This review summarizes the state of knowledge relating to the pharmacokinetics of dabigatran (factor IIa/thrombin inhibitor) and apixaban, edoxaban and rivaroxaban (factor Xa) inhibitors. We focus on pharmacokinetic differences between the drugs which may have clinically significant implications. EXPERT OPINION Patient-centered care necessitates a careful consideration of the pharmacokinetic and pharmacodynamic differences between DOACs, and how these relate to individual patient circumstances. Prescribers should be aware of the potential for pharmacokinetic drug interactions with DOACs which may influence prescribing decisions in patients with multiple comorbidities. In order to give an appropriate dose of DOAC drugs, accurate estimation of renal function using the Cockcroft-Gault formula using actual body weight is necessary. An increasing body of evidence supports the use of DOACs in patients who are obese, and this is becoming more routine in clinical practice.
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Affiliation(s)
- B Hindley
- Pharmacy Department, Aintree University Hospital, Liverpool, UK
- Clinical Pharmacy and Therapeutics Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - G Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
- Danish Center for Clinical Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - A P McCloskey
- Clinical Pharmacy and Therapeutics Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
- Liverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
| | - P E Penson
- Clinical Pharmacy and Therapeutics Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
- Liverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
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3
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Lidgard B, Shen JI. Apixaban Dosing in Patients With Kidney Failure Treated With Peritoneal Dialysis. Kidney Med 2023; 5:100699. [PMID: 37554566 PMCID: PMC10405313 DOI: 10.1016/j.xkme.2023.100699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023] Open
Affiliation(s)
- Benjamin Lidgard
- Department of Medicine, University of Washington, Seattle, Washington
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4
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Fung WWS, Cheng PMS, Ng JKC, Chan GCK, Chow KM, Li PKT, Szeto CC. Pharmacokinetics of Apixaban Among Peritoneal Dialysis Patients. Kidney Med 2023; 5:100646. [PMID: 37533565 PMCID: PMC10393585 DOI: 10.1016/j.xkme.2023.100646] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
Rationale & Objective The efficacy and safety profile of apixaban remains uncertain in patients receiving peritoneal dialysis (PD) despite increasing use in this population. Accordingly, we assessed the pharmacokinetics of apixaban among patients receiving PD. Study Design A pharmacokinetics study in a single center. Patients recruited received 1 week of apixaban at 2.5 mg twice a day to reach steady state. Serial blood samples were then taken before and after the last dose for pharmacokinetics analysis of apixaban. Setting & Participants Ten stable PD patients with atrial fibrillation in an outpatient setting. Analytical Approach/Outcomes Pharmacokinetic parameters including the area under the concentration-time curve from time 0 to 12 hours after the last dose of apixaban (AUC0-12), peak concentration, trough level, time to peak apixaban concentration, half-life, and drug clearance were analyzed. Results There was a wide variation in the range of apixaban concentration across the 10 patients. The AUC0-12 for the PD group was significantly higher than those reported previously for hemodialysis patients or healthy individuals. Three patients had a supratherapeutic peak concentration whereas 2 patients had a supratherapeutic trough level as compared with the pharmacokinetic parameter in healthy individuals taking equivalent therapeutic dosage. Limitations Small sample size with short study duration limits the ability to ascertain the true bleeding risk and to detect any clinical outcomes. Results may be limited to Asian populations only. Conclusions A proportion of PD patients had supratherapeutic levels even when the reduced dosage 2.5 mg twice a day was used. Given the large interindividual variation in the drug level, therapeutic drug monitoring should be done if available. Otherwise, one should start the drug at reduced doses with caution and with more frequent clinical monitoring for any signs of bleeding.
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Affiliation(s)
| | - Phyllis Mei-Shan Cheng
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Jack Kit-Chung Ng
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Gordon Chun-Kau Chan
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Kai Ming Chow
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Philip Kam-Tao Li
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Cheuk Chun Szeto
- Department of Medicine & Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong, China
- Li Ka Shing Institute of Health Sciences (LiHS), The Chinese University of Hong Kong, Shatin, Hong Kong, China
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5
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Wang CC, Chen YL, Lu TC, Lee C, Chang YC, Chan YF, Mathew P, Lin XR, Hsieh WR, Huang TY, Huang HL, Hwang TL. Design and evaluation of oral formulation for apixaban. Heliyon 2023; 9:e18422. [PMID: 37534003 PMCID: PMC10391955 DOI: 10.1016/j.heliyon.2023.e18422] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023] Open
Abstract
Non-valvular atrial fibrillation (NVAF) is a common form of cardiac arrhythmia that affects 1-1.5% of adults and roughly 10% of elderly adults with dysphagia. Apixaban is an anticoagulant referred to as a factor Xa inhibitor, which has been shown to reduce the risk of stroke and systemic embolism in cases of NVAF. Our objective in the current study was to formulate an orally disintegrating film to facilitate the administration of apixaban to elderly patients who have difficulty swallowing. Researchers have used a wide variety of cellulose-based or non-cellulose-based polymers in a variety of combinations to achieve specific characteristics related to film formation, disintegration performance, drug content, in vitro drug release, and stability. One of the two formulations in this study was specify that bioequivalence criteria met with respect to Cmax of the reference drug (ELIQUIS®) in terms of pharmacokinetic profile. Further research will be required to assess the applicability of orodispersible films created using colloidal polymers of high and low molecular weights to other drugs with poor solubility in water.
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Affiliation(s)
- Chien-Chiao Wang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City, 333, Taiwan
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Yu-Li Chen
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, 333, Taiwan
| | - Ta-Chien Lu
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Catherine Lee
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Yu-Chia Chang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, 333, Taiwan
| | - Yen-Fan Chan
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, 333, Taiwan
| | - Philip Mathew
- Novum Pharmaceutical Research Inc. Toronto, ON, M1L 4S4, Canada
| | - Xing-Rong Lin
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Wen-Rung Hsieh
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Ting-Yun Huang
- TAHO Pharmaceuticals Ltd. Neihu Dist., Taipei City, 114, Taiwan
| | - Hsin-Lan Huang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City, 333, Taiwan
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, 333, Taiwan
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan City, 333, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 243, Taiwan
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6
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Martin AC, Benamouzig R, Gouin-Thibault I, Schmidt J. Management of Gastrointestinal Bleeding and Resumption of Oral Anticoagulant Therapy in Patients with Atrial Fibrillation: A Multidisciplinary Discussion. Am J Cardiovasc Drugs 2023:10.1007/s40256-023-00582-9. [PMID: 37145342 DOI: 10.1007/s40256-023-00582-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/05/2023] [Indexed: 05/06/2023]
Abstract
Direct oral anticoagulants (DOACs) are recommended for the prevention of thromboembolism in patients with atrial fibrillation (AF), and are now preferred over vitamin K antagonists due to their beneficial efficacy and safety profile. However, all oral anticoagulants carry a risk of gastrointestinal (GI) bleeding. Although the risk is well documented and acute bleeding well codified, there is limited high-quality evidence and no guidelines to guide physicians on the optimal management of anticoagulation after a GI bleeding event. The aim of this review is to provide a multidisciplinary critical discussion of the optimal management of GI bleeding in patients with AF receiving oral anticoagulants to help physicians provide individualized treatment for each patient and optimize outcomes. It is important to perform endoscopy when a patient presents with bleeding manifestations or hemodynamic instability to determine the bleed location and severity of bleeding and then perform initial resuscitation. Administration of all anticoagulants and antiplatelets should be stopped and bleeding allowed to resolve with time; however, anticoagulant reversal should be considered for patients who have life-threatening bleeding or when the bleeding is not controlled by the initial resuscitation. Anticoagulation needs to be timely resumed considering that bleeding risk outweighs thrombotic risk when anticoagulation is resumed early after the bleeding event. To prevent further bleeding, physicians should prescribe anticoagulant therapy with the lowest risk of GI bleeding, avoid medications with GI toxicity, and consider the effect of concomitant medications on potentiating the bleeding risk.
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Affiliation(s)
- Anne-Céline Martin
- Advanced Heart Failure Unit, AP-HP, Cardiology Department, European Hospital Georges Pompidou, Paris, France.
- INSERM UMRS_1140, Innovative Therapies in Haemostasis, Université Paris Cité, 75006, Paris, France.
| | - Robert Benamouzig
- Service de Gastroentérologie, Hôpital Avicenne, AP-HP, Université Paris-Nord-La Sorbonne, Bobigny, France
| | - Isabelle Gouin-Thibault
- Laboratory of Hematology, IRSET-INSERM UMRS 1085, Rennes University Hospital, Rennes, France
| | - Jeannot Schmidt
- LaPSCo, Physiological and Psychosocial Stress, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
- Emergency Department, CHU Clermont-Ferrand, University Hospital Gabriel Montpied, Clermont-Ferrand, France
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7
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Bortman LV, Mitchell F, Naveiro S, Pérez Morales J, Gonzalez CD, Di Girolamo G, Giorgi MA. Direct Oral Anticoagulants: An Updated Systematic Review of Their Clinical Pharmacology and Clinical Effectiveness and Safety in Patients With Nonvalvular Atrial Fibrillation. J Clin Pharmacol 2023; 63:383-396. [PMID: 36433678 DOI: 10.1002/jcph.2184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022]
Abstract
Direct oral anticoagulants have been an increasingly used class of drugs in the setting of nonvalvular atrial fibrillation, defying vitamin K antagonists' monopoly when it comes to anticoagulation due to its several limitations. Direct oral anticoagulants (DOACs) have entered the market as a noninferior and safer option in comparison with vitamin K antagonists, as their respective phase III clinical trials proved. The aim of this article was to update and summarize data on their clinical pharmacology and to review real-world data to know their comparative effectiveness and safety. We performed a systematic review using PubMed, Google Scholar, Embase, and Web of Science as search engines. Regarding pharmacodynamics, there were no substantial changes reported from their original profile. There were many advances in the knowledge about clinical pharmacokinetics of DOACs that have had a direct impact on their clinical use, mainly related to drug-drug interactions. In a real-world setting, DOACs have shown to be noninferior in preventing thromboembolic events compared to vitamin K antagonists. In regards to safety, DOACs have shown a lower bleeding risk relative to warfarin. Comparison between DOACs has demonstrated rivaroxaban to have the highest bleeding risk. Overall, the evidence gathered showed few changes from the original data presented in phase III clinical trials, concluding that their real-world use coincides greatly with them.
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Affiliation(s)
- Lucia Victoria Bortman
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina
| | - Florencia Mitchell
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina
| | - Sofia Naveiro
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina
| | - Juana Pérez Morales
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina
| | - Claudio Daniel Gonzalez
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina.,Health Economics and Technology Assessment, Unit. Instituto Universitario CEMIC, Buenos Aires, Argentina
| | - Guillermo Di Girolamo
- Department of Pharmacology, School of Medicine, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto Alberto C. Taquini de Investigaciones en Medicina Traslacional (IATIMET), Universidad de Buenos Aires - CONICET, Facultad de Medicina, Buenos Aires, Argentina
| | - Mariano Anibal Giorgi
- Department of Pharmacology, School of Medicine, Instituto Universitario CEMIC, Buenos Aires, Argentina.,Health Economics and Technology Assessment, Unit. Instituto Universitario CEMIC, Buenos Aires, Argentina
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8
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Tarek Mahmoud S, Moffid MA, Sayed RM, Mostafa EA. Core shell stationary phase for a novel separation of some COVID-19 used drugs by UPLC-MS/MS Method: Study of grapefruit consumption impact on their pharmacokinetics in rats. Microchem J 2022; 181:107769. [PMID: 35855210 PMCID: PMC9284531 DOI: 10.1016/j.microc.2022.107769] [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: 04/22/2022] [Revised: 06/11/2022] [Accepted: 07/06/2022] [Indexed: 12/15/2022]
Abstract
A sensitive and selective UPLC-MS/MS method was developed for the synchronized determination of four drugs used in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), namely, azithromycin, apixaban, dexamethasone, and favipiravir in rat plasma. using a Poroshell 120 EC-C18 column (50 mm × 4.6 mm, 2.7 m) with a high-resolution ESI tandem mass spectrometer detection with multiple reaction monitoring. We used an Agilent Poroshell column, which is characterized by a stationary phase based on non-porous core particles. With a remarkable improvement in the number of theoretical plates and low column backpressure. In addition, the developed method was employed in studying the potential food-drug interaction of grapefruit juice (GFJ) with the selected drugs which affects their pharmacokinetics in rats. The LC-MS/MS operated in positive and negative ionization mode using two internal standards: moxifloxacin and chlorthalidone, respectively. Liquid- liquid extraction of the cited drugs from rat plasma was accomplished using diethyl ether: dichloromethane (70:30, v/v). The analytes were separated using methanol: 0.1 % formic acid in water (95: 5, v/v) as a mobile phase in isocratic mode of elution pumped at a flow rate of 0.3 mL/min. A detailed validation of the bio-analytical method was performed in accordance with US-FDA and EMA guidelines. Concerning the in vivo pharmacokinetic study, the statistical significance between the results of the test groups receiving GFJ along with the cited drugs and the control group was assessed demonstrating that GFJ increased the plasma concentration of azithromycin, apixaban, and dexamethasone. Accordingly, this food–drug interaction requires cautious ingestion of GFJ in patients using (SARS-CoV-2) medications as it can produce negative effects in the safety of the drug therapy. A potential drug–drug interaction is also suggested between those medications requiring a suitable dose adjustment.
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Affiliation(s)
- Sally Tarek Mahmoud
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt
| | - Marwa A Moffid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt
| | - Rawda M Sayed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt
| | - Eman A Mostafa
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt
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9
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Chaves OA, Sacramento CQ, Fintelman-Rodrigues N, Temerozo JR, Pereira-Dutra F, Mizurini DM, Monteiro RQ, Vazquez L, Bozza PT, Castro-Faria-Neto HC, Souza TML. Apixaban, an orally available anticoagulant, inhibits SARS-CoV-2 replication and its major protease in a non-competitive way. J Mol Cell Biol 2022; 14:6618655. [PMID: 35759391 PMCID: PMC9492308 DOI: 10.1093/jmcb/mjac039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/08/2022] [Accepted: 06/24/2022] [Indexed: 11/25/2022] Open
Affiliation(s)
- Otávio Augusto Chaves
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Carolina Q Sacramento
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Natalia Fintelman-Rodrigues
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Jairo Ramos Temerozo
- National Institute for Science and Technology on Neuroimmunomodulation (INCT/NIM), Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,Laboratory on Thymus Research, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Filipe Pereira-Dutra
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Daniella M Mizurini
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Robson Q Monteiro
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Leonardo Vazquez
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Patricia T Bozza
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Hugo Caire Castro-Faria-Neto
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
| | - Thiago Moreno L Souza
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil
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10
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de Andrade RP, Caldeira TG, Vasques BV, Morais Ruela AL, de Souza J. Biopharmaceutics considerations for direct oral anticoagulants. Drug Dev Ind Pharm 2022; 47:1881-1894. [PMID: 35377263 DOI: 10.1080/03639045.2022.2062377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Vitamin K antagonists (VKA) and direct oral anticoagulants (DOACs) have been clinically used in the treatment of coagulation disorders. There are four DOACs approved since 2010 (dabigatran etexilate, rivaroxaban, apixaban, and edoxaban), and they were designed to overcome the practical limitations of VKA. This review summarized biopharmaceutics considerations about DOACs, which are critically discussed, applying risk analyses to subside the further classification of these drugs according to the Biopharmaceutics Classification System (BCS). These discussions included data compiled about physicochemical properties, equilibrium solubility, permeability, and drug dissolution of DOACs. From the biopharmaceutics characteristics is possible to identify critical variables related to the absorption process, which can help in the design of new formulations. The data were compared with the criteria recommended by regulatory agencies for the biopharmaceutics classification according to the BCS. From that, these data may be used to discuss the approval of generic medicines by the BCS-based biowaiver, and the clinical risks arising from novel formulations with DOACs. However, although there are indications of biopharmaceutics classifications for DOACs, conclusive information to classify these compounds according to the BCS is lacking, requiring more experimental studies to achieve this aim. Conclusive information is essential for a safe decision about the biowaiver, as well as to guide the development of new formulations containing the DOACs.
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Affiliation(s)
- Rafael Pereira de Andrade
- Laboratório de Controle de Qualidade, Programa de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil
| | - Tamires Guedes Caldeira
- Laboratório de Controle de Qualidade, Programa de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil
| | - Bárbara Vasconcelos Vasques
- Laboratório de Controle de Qualidade, Programa de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil
| | - André Luís Morais Ruela
- Laboratório de Controle de Qualidade, Programa de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil
| | - Jacqueline de Souza
- Laboratório de Controle de Qualidade, Programa de Pós-Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil
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11
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From basic science to life-saving therapy: the rationale, and drug discovery efforts that led to the direct factor Xa inhibitor eliquis. J Thromb Thrombolysis 2021; 52:403-407. [PMID: 34351559 DOI: 10.1007/s11239-021-02529-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Over the past few decades, drug discovery directed at the treatment and prevention of thromboembolic diseases has been challenged by the need to balance robust efficacy with improved safety relative to the standard of care. To this end, the most impactful advance to date has been the discovery and development of oral factor Xa inhibitors. In this essay, a brief account of the program that culminated in the discovery of Eliquis (apixaban) and the commitment to identify a compound with an optimal profile are described.
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12
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Herrera ND, Birschmann I, Wolny M, Papich MG, Brooks MB, Goggs R. Pharmacokinetics and Biologic Activity of Apixaban in Healthy Dogs. Front Vet Sci 2021; 8:702821. [PMID: 34291105 PMCID: PMC8287028 DOI: 10.3389/fvets.2021.702821] [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: 04/30/2021] [Accepted: 06/07/2021] [Indexed: 12/02/2022] Open
Abstract
Thrombosis is common in critically ill dogs and causes considerable morbidity and mortality. The direct factor Xa inhibitor apixaban is safe, efficacious, and convenient in humans. This study aimed to determine the pharmacokinetics (PK), bioactivity, protein binding, and bioavailability of apixaban following intravenous (IV) and oral (PO) administration to healthy dogs. Six healthy, adult, mixed-breed dogs were administered apixaban 0.18 mg/kg IV and then following a minimum 2-week washout period administered apixaban 0.2 mg/kg PO. Dogs were monitored using an apixaban-calibrated anti-Xa bioassay, prothrombin time (PT) and activated partial thromboplastin time (aPTT) and tissue-factor thromboelastography (TF-TEG). Plasma apixaban concentrations were measured using liquid chromatography-tandem mass spectrometry. Concentration-time plots were constructed, and PK modeling performed using compartmental methods. Administration of IV and PO apixaban was well-tolerated. Following IV administration, mean half-life was 4.1 h, and volume of distribution was 177 ml/kg. Apixaban was highly protein bound (98.6%). Apixaban concentrations and anti-Xa activity were highly correlated (R2 0.994, P < 0.0001). Intravenous apixaban significantly prolonged PT at time points up to 1 h, and aPTT at time points up to 0.25 h post-administration. Coagulation times were positively correlated with apixaban concentrations (PT R2 0.599, P < 0.0001; aPTT R2 0.430, P < 0.0001) and TF-TEG R-time was significantly prolonged 0.25 h post-administration. Following oral administration, mean bioavailability was 28.4%, lag time was 2 h, time to Cmax was 5 h and the apparent elimination half-life was 3.1 h. Oral apixaban significantly prolonged PT at 4, 6, and 8 h but aPTT and TF-TEG were not consistently affected by oral apixaban. Apixaban concentrations are best monitored using anti-Xa activity. Future studies should determine PK and bioactivity of other doses using commercial tablets and following multidose administration and establish safe, effective dosing ranges in sick dogs.
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Affiliation(s)
- Noelle D. Herrera
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, United States
| | - Ingvild Birschmann
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Center North Rhine-Westphalia, Bad Oeynhausen, Germany
| | - Monika Wolny
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Center North Rhine-Westphalia, Bad Oeynhausen, Germany
| | - Mark G. Papich
- Department of Molecular Biomedical Sciences, North Carolina State College of Veterinary Medicine, Raleigh, NC, United States
| | - Marjory B. Brooks
- Department of Population Medicine and Diagnostic Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, United States
| | - Robert Goggs
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, United States
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13
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Gagnon AL, Scansen BA, Olver C, Shropshire S, Hess A, Orton EC. Phase I clinical trial of an antithrombotic drug protocol combining apixaban and clopidogrel in dogs. J Vet Cardiol 2021; 36:105-114. [PMID: 34192609 DOI: 10.1016/j.jvc.2021.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 05/20/2021] [Accepted: 05/29/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Combining an antiplatelet drug, clopidogrel, with the direct oral Factor Xa inhibitor, apixaban, could provide an effective antithrombotic strategy in dogs. Thus, a limited 3 + 3 phase I dose-escalation clinical trial in healthy dogs was conducted to evaluate bleeding (primary end-point) and pharmacodynamic (PD)/pharmacokinetic (PK) parameters (secondary end-point). ANIMALS Eleven beagle dogs, median body weight 10.2 kg (9.7-10.9 kg), were enrolled. METHODS Four doses of apixaban (three dogs/dose) administered for eight days. Clopidogrel dose was fixed at 18.75 mg per os (PO) q 24 h with escalation of apixaban dose at 5 mg PO q 12 h, 5 mg PO q 8 h, 10 mg PO q 12 h, and 10 mg PO q 8 h. Laboratory testing included fecal occult blood, coagulation parameters, Factor X activity, apixaban concentration, platelet aggregometry, and thromboelastography on days 1, 3, and 8. RESULTS Evidence of bleeding was not observed at any dosage. Dose-dependent changes in PD/PK parameters between baseline and 3 h post-medication were observed including a prolongation of prothrombin time, a prolongation of activated partial thromboplastin time, a decrease of Factor X activity level, and increased apixaban concentration. CONCLUSIONS The combination of apixaban at a dosage range of approximately 0.5 mg/kg PO q 12 h to 1 mg/kg PO q 8 h and clopidogrel at approximately 1.8 mg/kg PO q 24 h did not cause bleeding over a one-week period in healthy dogs. Clinically relevant changes in PD/PK data occur at all dosage levels. This study provides a starting point for longer-term clinical trials to determine safety and efficacy.
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Affiliation(s)
- A L Gagnon
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| | - B A Scansen
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| | - C Olver
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO, 80523, USA
| | - S Shropshire
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| | - A Hess
- Department of Statistics, Colorado State University, Fort Collins, CO, 80523, USA
| | - E C Orton
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA.
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14
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Wallace GE, McKaba VF, Reinhart JM, Li Z, Austin S, Fries RC. Pharmacokinetics and pharmacodynamics of intravenous and oral apixaban in horses. J Vet Pharmacol Ther 2021; 44:724-732. [PMID: 34046920 DOI: 10.1111/jvp.12979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 09/11/2020] [Accepted: 05/03/2021] [Indexed: 11/27/2022]
Abstract
Large vessel and microvascular thrombi are common complications in systemically ill horses contributing to patient morbidity and mortality. Apixaban, an oral factor Xa inhibitor, shows excellent efficacy against stroke and deep vein thrombosis in humans. The purpose of this study was to determine serum apixaban concentrations and anti-factor Xa activity in horses after orally administered apixaban. Five horses received a single dose of intravenous (0.09 mg/kg) and oral (1 mg/kg) apixaban in a cross-over design. Serum apixaban concentrations and anti-Xa activity were measured serially via liquid chromatography-tandem mass spectrometry and a commercial assay, respectively, for 12 hr following oral administration. Apixaban was detected in all horses after both oral and intravenous administration. Oral administration yielded a mean maximum concentration of 60.3 ng/ml (59.4-111 ng/ml), mean time to maximum concentration of 0.5 hr (0.5-2), mean half-life of 6.2 hr (4.6-8.3), and mean oral bioavailability of 10% (3.8-17.4). After oral administration, anti-Xa activity had a strong positive relationship with serum apixaban and was best represented by a dose-response model with the following parameters: E0 = 5.00 ng/ml, EMAX = 311 ng/mL, EC50 = 267 ng/ml, and n = 1.58. Anti-Xa activity was significantly higher 2 hr post-administration compared with baseline (p = .032). Despite low oral bioavailability, administration of 1 mg/kg oral apixaban, in healthy horses, achieves serum concentrations similar to those reported in humans. Apixaban has potential clinical utility in horses and warrants further investigation.
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Affiliation(s)
- Gabrielle E Wallace
- University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Urbana, IL, USA
| | - Victoria F McKaba
- University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Urbana, IL, USA
| | - Jennifer M Reinhart
- University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Urbana, IL, USA
| | - Zhong Li
- The Metabolomics Center Roy J Carver Biotechnology Center, University of Illinois at Urbana Illinois, Urbana, IL, USA
| | - Scott Austin
- University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Urbana, IL, USA
| | - Ryan C Fries
- University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Urbana, IL, USA
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15
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Zhang D, Wei C, Hop CECA, Wright MR, Hu M, Lai Y, Khojasteh SC, Humphreys WG. Intestinal Excretion, Intestinal Recirculation, and Renal Tubule Reabsorption Are Underappreciated Mechanisms That Drive the Distribution and Pharmacokinetic Behavior of Small Molecule Drugs. J Med Chem 2021; 64:7045-7059. [PMID: 34010555 DOI: 10.1021/acs.jmedchem.0c01720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Drug reabsorption following biliary excretion is well-known as enterohepatic recirculation (EHR). Renal tubular reabsorption (RTR) following renal excretion is also common but not easily assessed. Intestinal excretion (IE) and enteroenteric recirculation (EER) have not been recognized as common disposition mechanisms for metabolically stable and permeable drugs. IE and intestinal reabsorption (IR:EHR/EER), as well as RTR, are governed by dug concentration gradients, passive diffusion, active transport, and metabolism, and together they markedly impact disposition and pharmacokinetics (PK) of small molecule drugs. Disruption of IE, IR, or RTR through applications of active charcoal (AC), transporter knockout (KO), and transporter inhibitors can lead to changes in PK parameters. The impacts of intestinal and renal reabsorption on PK are under-appreciated. Although IE and EER/RTR can be an intrinsic drug property, there is no apparent strategy to optimize compounds based on this property. This review seeks to improve understanding and applications of IE, IR, and RTR mechanisms.
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Affiliation(s)
- Donglu Zhang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Cong Wei
- Drug Metabolism and Pharmacokinetics, Biogen, 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Cornelis E C A Hop
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Matthew R Wright
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Ming Hu
- University of Houston College of Pharmacy, 4849 Calhoun Road, Houston, Texas 77204, United States
| | - Yurong Lai
- Drug Metabolism and Pharmacokinetics, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - S Cyrus Khojasteh
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - W Griff Humphreys
- Aranmore Pharma Consulting, 11 Andrew Drive, Lawrenceville, New Jersey 08648, United States
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16
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Van den Bosch I, Bouillon T, Verhamme P, Vanassche T, Jacquemin M, Coemans M, Kuypers D, Meijers B. Apixaban in patients on haemodialysis: a single-dose pharmacokinetics study. Nephrol Dial Transplant 2021; 36:884-889. [PMID: 33351142 DOI: 10.1093/ndt/gfaa351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Apixaban, a direct oral anticoagulant inhibiting factor Xa, has been proven to reduce the risk of atrial fibrillation-related stroke and thromboembolism in patients with mild to moderate renal insufficiency. Patients on renal replacement therapy, however, were excluded from randomized controlled trials. Therefore, uncertainty remains concerning benefits, dosing and timing of intake in haemodialysis population. METHODS We conducted a Phase II pharmacokinetics study in which 24 patients on maintenance haemodialysis were given a single dose (2.5 mg or 5 mg) of apixaban, either 30 min before or immediately after dialysis on the mid-week dialysis day. RESULTS Apixaban 5 mg resulted in higher area under the curve (AUC0-48) in comparison with 2.5 mg, although significance could only be reached for dosing pre-dialysis (2.5 mg versus 5 mg, P = 0.008). In line, peak concentrations (Cmax) after dosing pre-dialysis were significantly higher in the 5 mg than in the 2.5 mg groups (P = 0.02). In addition, dialysis resulted in significant reduction of drug exposure. AUC0-48 pre-dialysis were on average 48% (2.5 mg) and 26% (5 mg) lower than the AUC0-48 post-dialysis, in line with Cmax. As a result, a dose of 2.5 mg post-dialysis and a dose of 5 mg pre-dialysis resulted in similar AUC0-48. In contrast, significant differences were found between the 5 mg group post-dialysis and the 2.5 mg group pre-dialysis (P = 0.02). CONCLUSIONS Our data suggest that exposure to apixaban in patients on maintenance haemodialysis is dependent not only on drug dose but also on timing of intake relative to the haemodialysis procedure.
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Affiliation(s)
| | - Thomas Bouillon
- Department of Biomedical Sciences, University of Leuven, Leuven, Belgium.,Department of Pharmacometrics, University of Leuven, Leuven, Belgium
| | - Peter Verhamme
- Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium.,Department of Cardiovascular Sciences, University Hospitals Leuven, Leuven, Belgium
| | - Thomas Vanassche
- Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium.,Department of Cardiovascular Sciences, University Hospitals Leuven, Leuven, Belgium
| | - Marc Jacquemin
- Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium.,Department of Haemostasis in Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Maarten Coemans
- Leuven Biostatistics and Statistical bioinformatics Center, Leuven, Belgium
| | - Dirk Kuypers
- Division of Nephrology, UZ Leuven, Leuven, Belgium.,Laboratory of Nephrology, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Björn Meijers
- Division of Nephrology, UZ Leuven, Leuven, Belgium.,Laboratory of Nephrology, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
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17
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Shnayder NA, Petrova MM, Shesternya PA, Savinova AV, Bochanova EN, Zimnitskaya OV, Pozhilenkova EA, Nasyrova RF. Using Pharmacogenetics of Direct Oral Anticoagulants to Predict Changes in Their Pharmacokinetics and the Risk of Adverse Drug Reactions. Biomedicines 2021; 9:biomedicines9050451. [PMID: 33922084 PMCID: PMC8143539 DOI: 10.3390/biomedicines9050451] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 12/13/2022] Open
Abstract
Dabigatran, rivaroxaban, apixaban, and edoxaban are direct oral anticoagulants (DOACs) that are increasingly used worldwide. Taking into account their widespread use for the prevention of thromboembolism in cardiology, neurology, orthopedics, and coronavirus disease 2019 (COVID 19) as well as their different pharmacokinetics and pharmacogenetics dependence, it is critical to explore new opportunities for DOACs administration and predict their dosage when used as monotherapy or in combination with other drugs. In this review, we describe the details of the relative pharmacogenetics on the pharmacokinetics of DOACs as well as new data concerning the clinical characteristics that predetermine the needed dosage and the risk of adverse drug reactions (ADRs). The usefulness of genetic information before and shortly after the initiation of DOACs is also discussed. The reasons for particular attention to these issues are not only new genetic knowledge and genotyping possibilities, but also the risk of serious ADRs (primarily, gastrointestinal bleeding). Taking into account the effect of the carriership of single nucleotide variants (SNVs) of genes encoding biotransformation enzymes and DOACs metabolism, the use of these measures is important to predict changes in pharmacokinetics and the risk of ADRs in patients with a high risk of thromboembolism who receive anticoagulant therapy.
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Affiliation(s)
- Natalia A. Shnayder
- The Centre of Personalized Psychiatry and Neurology, V. M. Bekhterev National Medical Research Center for Psychiatry and Neurology (V.M. Bekhterev NMRC PN) 3, Bekhterev Str., 192019 Saint-Petersburg, Russia;
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
- Correspondence: (N.A.S.); (R.F.N.); Tel.: +7-(812)-670-02-20 (N.A.S. & R.F.N.)
| | - Marina M. Petrova
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
| | - Pavel A. Shesternya
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
| | - Alina V. Savinova
- The Centre of Personalized Psychiatry and Neurology, V. M. Bekhterev National Medical Research Center for Psychiatry and Neurology (V.M. Bekhterev NMRC PN) 3, Bekhterev Str., 192019 Saint-Petersburg, Russia;
| | - Elena N. Bochanova
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
| | - Olga V. Zimnitskaya
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
| | - Elena A. Pozhilenkova
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
| | - Regina F. Nasyrova
- The CoreFacilities Molecular and Cell Technologies, V. F. Voino-Yasenetsky Krasnoyarsk State Medical University (V.F. Voino-YasenetskyKrasSMU) 1, PartizanZheleznyak Str., 660022 Krasnoyarsk, Russia; (M.M.P.); (P.A.S.); (E.N.B.); (O.V.Z.); (E.A.P.)
- Correspondence: (N.A.S.); (R.F.N.); Tel.: +7-(812)-670-02-20 (N.A.S. & R.F.N.)
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18
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Dunois C. Laboratory Monitoring of Direct Oral Anticoagulants (DOACs). Biomedicines 2021; 9:biomedicines9050445. [PMID: 33919121 PMCID: PMC8143174 DOI: 10.3390/biomedicines9050445] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/08/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022] Open
Abstract
The introduction of direct oral anticoagulants (DOACs), such as dabigatran, rivaroxaban, apixaban, edoxaban, and betrixaban, provides safe and effective alternative to previous anticoagulant therapies. DOACs directly, selectively, and reversibly inhibit factors IIa or Xa. The coagulation effect follows the plasma concentration-time profile of the respective anticoagulant. The short half-life of a DOAC constrains the daily oral intake. Because DOACs have predictable pharmacokinetic and pharmacodynamic responses at a fixed dose, they do not require monitoring. However in specific clinical situations and for particular patient populations, testing may be helpful for patient management. The effect of DOACs on the screening coagulation assays such as prothrombin time (PT), activated partial thromboplastin time (APTT), and thrombin time (TT) is directly linked to reagent composition, and clotting time can be different from reagent to reagent, depending on the DOAC's reagent sensitivity. Liquid chromatography-mass spectrometry (LC-MS/MS) is considered the gold standard method for DOAC measurement, but it is time consuming and requires expensive equipment. The general consensus for the assessment of a DOAC is clotting or chromogenic assays using specific standard calibrators and controls. This review provides a short summary of DOAC properties and an update on laboratory methods for measuring DOACs.
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Affiliation(s)
- Claire Dunois
- HYPHEN BioMed, Sysmex Group, 95000 Neuville sur Oise, France
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19
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Andrews L, Benken S, Tan X, Wenzler E. Pharmacokinetics and dialytic clearance of apixaban during in vitro continuous renal replacement therapy. BMC Nephrol 2021; 22:45. [PMID: 33516188 PMCID: PMC7847018 DOI: 10.1186/s12882-021-02248-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/19/2021] [Indexed: 12/26/2022] Open
Abstract
Background To evaluate the transmembrane clearance (CLTM) of apixaban during modeled in vitro continuous renal replacement therapy (CRRT), assess protein binding and circuit adsorption, and provide initial dosing recommendations. Methods Apixaban was added to the CRRT circuit and serial pre-filter bovine blood samples were collected along with post-filter blood and effluent samples. All experiments were performed in duplicate using continuous veno-venous hemofiltration (CVVH) and hemodialysis (CVVHD) modes, with varying filter types, flow rates, and point of CVVH replacement fluid dilution. Concentrations of apixaban and urea were quantified via liquid chromatography-tandem mass spectrometry. Plasma pharmacokinetic parameters for apixaban were estimated via noncompartmental analysis. CLTM was calculated via the estimated area under the curve (AUC) and by the product of the sieving/saturation coefficient (SC/SA) and flow rate. Two and three-way analysis of variance (ANOVA) models were built to assess the effects of mode, filter type, flow rate, and point of dilution on CLTM by each method. Optimal doses were suggested by matching the AUC observed in vitro to the systemic exposure demonstrated in Phase 2/3 studies of apixaban. Linear regression was utilized to provide dosing estimations for flow rates from 0.5–5 L/h. Results Mean adsorption to the HF1400 and M150 filters differed significantly at 38 and 13%, respectively, while mean (± standard deviation, SD) percent protein binding was 70.81 ± 0.01%. Effect of CVVH point of dilution did not differ across filter types, although CLTM was consistently significantly higher during CRRT with the HF1400 filter compared to the M150. The three-way ANOVA demonstrated improved fit when CLTM values calculated by AUC were used (adjusted R2 0.87 vs. 0.52), and therefore, these values were used to generate optimal dosing recommendations. Linear regression revealed significant effects of filter type and flow rate on CLTM by AUC, suggesting doses of 2.5–7.5 mg twice daily (BID) may be needed for flow rates ranging from 0.5–5 L/h, respectively. Conclusion For CRRT flow rates most commonly employed in clinical practice, the standard labeled 5 mg BID dose of apixaban is predicted to achieve target systemic exposure thresholds. The safety and efficacy of these proposed dosing regimens warrants further investigation in clinical studies. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02248-7.
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Affiliation(s)
- Lauren Andrews
- College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Room 164 (M/C 886),, Chicago, IL, 60612, USA
| | - Scott Benken
- College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Room 164 (M/C 886),, Chicago, IL, 60612, USA
| | - Xing Tan
- College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Room 164 (M/C 886),, Chicago, IL, 60612, USA
| | - Eric Wenzler
- College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Room 164 (M/C 886),, Chicago, IL, 60612, USA.
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20
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Savinova AV, Petrova MM, Shnayder NA, Bochanova EN, Nasyrova RF. Pharmacokinetics and Pharmacogenetics of Apixaban. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2020. [DOI: 10.20996/1819-6446-2020-10-17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Apixaban is oral anticoagulant, it is widely used in prevention of stroke in non-valvular atrial fibrillation and treatment of deep vein thrombosis and pulmonary embolism. Its main mechanism of action is through reversible inhibition of factor Xa. It specifically binds and inhibits both free and bound factor Xa which ultimately results in reduction in the levels of thrombin formation. Apixaban is mainly metabolized by CYP3A4 with minor contributions from CYP1A2, CYP2C8, CYP2C9, CYP2C19 and CYP2J2 isoenzymes. Some of the major metabolic pathways of apixaban include o-demethylation, hydroxylation, and sulfation, with o-demethylapixabansulphate being the major metabolite. The aim of this review is analysis of associated researches of single nucleotide variants (SNV) of CYP3A5 and SULT1A1 genes and search for new candidate genes reflecting effectiveness and safety of apixaban. The search for full-text publications in Russian and English languages containing key words “apixaban”, “pharmacokinetics”, “effectiveness”, “safety” was carried out amongst literature of the past twenty years with the use of eLibrary, PubMed, Web of Science, OMIM data bases. Pharmacokinetics and pharmacogenetics of apixaban are considered in this review. The hypothesis about CYP и SULT1A enzymes influence on apixaban metabolism was examined. To date, numerous SNVs of the CYP3A5 and SULT1A1 genes have been identified, but their potential influence on pharmacokinetics apixaban in clinical practice needs to be further studies. The role of SNVs of other genes encoding beta-oxidation enzymes of apixaban (CYP1A2, CYP2C8, CYP2C9, CYP2C19, CYP2J2) and transporter proteins (ABCB1, ABCG2) in its efficacy and safety are not well understood, and ABCB1 and ABCG2 genes may be potential candidate genes for studies of the drug safety.
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Affiliation(s)
- A. V. Savinova
- Bekhterev National Medical Research Center of Psychiatry and Neurology
| | - M. M. Petrova
- Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky Partizana
| | - N. A. Shnayder
- Bekhterev National Medical Research Center of Psychiatry and Neurology;
Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky Partizana
| | - E. N. Bochanova
- Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky Partizana
| | - R. F. Nasyrova
- Bekhterev National Medical Research Center of Psychiatry and Neurology;
Kazan Federal University
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De Simone G, Pasquadibisceglie A, di Masi A, Buzzelli V, Trezza V, Macari G, Polticelli F, Ascenzi P. Binding of direct oral anticoagulants to the FA1 site of human serum albumin. J Mol Recognit 2020; 34:e2877. [PMID: 33034105 DOI: 10.1002/jmr.2877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 09/07/2020] [Accepted: 09/11/2020] [Indexed: 11/07/2022]
Abstract
The anticoagulant therapy is widely used to prevent and treat thromboembolic events. Until the last decade, vitamin K antagonists were the only available oral anticoagulants; recently, direct oral anticoagulants (DOACs) have been developed. Since 55% to 95% of DOACs are bound to plasma proteins, the in silico docking and ligand-binding properties of drugs apixaban, betrixaban, dabigatran, edoxaban, and rivaroxaban and of the prodrug dabigatran etexilate to human serum albumin (HSA), the most abundant plasma protein, have been investigated. DOACs bind to the fatty acid (FA) site 1 (FA1) of ligand-free HSA, whereas they bind to the FA8 and FA9 sites of heme-Fe(III)- and myristic acid-bound HSA. DOACs binding to the FA1 site of ligand-free HSA has been validated by competitive inhibition of heme-Fe(III) recognition. Values of the dissociation equilibrium constant for DOACs binding to the FA1 site (ie, calc KDOAC ) derived from in silico docking simulations (ranging between 1.2 × 10-8 M and 1.4 × 10-6 M) agree with those determined experimentally from competitive inhibition of heme-Fe(III) binding (ie, exp KDOAC ; ranging between 2.5 × 10-7 M and 2.2 × 10-6 M). In addition, this study highlights the inequivalence of rivaroxaban binding to mammalian serum albumin. Given the HSA concentration in vivo (~7.5 × 10-4 M), values of KDOAC here determined indicate that the formation of the HSA:DOACs complexes in the absence and presence of FAs and heme-Fe(III) may occur in vivo. Therefore, HSA appears to be an important determinant for DOACs transport.
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Affiliation(s)
| | | | | | | | - Viviana Trezza
- Department of Sciences, Roma Tre University, Rome, Italy
| | | | - Fabio Polticelli
- Department of Sciences, Roma Tre University, Rome, Italy
- Roma Tre Section, National Institute of Nuclear Physics, Rome, Italy
| | - Paolo Ascenzi
- Interdepartmental Laboratory for Electron Microscopy, Roma Tre University, Rome, Italy
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Abstract
Apixaban is an oral, direct factor Xa inhibitor that inhibits both free and clot-bound factor Xa, and has been approved for clinical use in several thromboembolic disorders, including reduction of stroke risk in non-valvular atrial fibrillation, thromboprophylaxis following hip or knee replacement surgery, the treatment of deep vein thrombosis or pulmonary embolism, and prevention of recurrent deep vein thrombosis and pulmonary embolism. The absolute oral bioavailability of apixaban is ~ 50%. Food does not have a clinically meaningful impact on the bioavailability. Apixaban exposure increases dose proportionally for oral doses up to 10 mg. Apixaban is rapidly absorbed, with maximum concentration occurring 3–4 h after oral administration, and has a half-life of approximately 12 h. Elimination occurs via multiple pathways including metabolism, biliary excretion, and direct intestinal excretion, with approximately 27% of total apixaban clearance occurring via renal excretion. The pharmacokinetics of apixaban are consistent across a broad range of patients, and apixaban has limited clinically relevant interactions with most commonly prescribed medications, allowing for fixed dosages without the need for therapeutic drug monitoring. The pharmacodynamic effect of apixaban is closely correlated with apixaban plasma concentration. This review provides a summary of the pharmacokinetic, pharmacodynamic, biopharmaceutical, and drug–drug interaction profiles of apixaban. Additionally, the population-pharmacokinetic analyses of apixaban in both healthy subjects and in the target patient populations are discussed.
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Siegal DM, Healey JS. Shared Decision-Making for Anticoagulation in Atrial Fibrillation: Do Physicians Really Listen? Can J Cardiol 2020; 36:459-461. [PMID: 32146068 DOI: 10.1016/j.cjca.2019.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/09/2019] [Accepted: 11/10/2019] [Indexed: 10/25/2022] Open
Affiliation(s)
- Deborah M Siegal
- Population Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
| | - Jeff S Healey
- Population Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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Factor Xa inhibitors in clinical practice: Comparison of pharmacokinetic profiles. Drug Metab Pharmacokinet 2020; 35:151-159. [DOI: 10.1016/j.dmpk.2019.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 10/06/2019] [Accepted: 10/15/2019] [Indexed: 12/23/2022]
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Goggs R, Blais MC, Brainard BM, Chan DL, deLaforcade AM, Rozanski E, Sharp CR. American College of Veterinary Emergency and Critical Care (ACVECC) Consensus on the Rational Use of Antithrombotics in Veterinary Critical Care (CURATIVE) guidelines: Small animal. J Vet Emerg Crit Care (San Antonio) 2019; 29:12-36. [PMID: 30654421 DOI: 10.1111/vec.12801] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 12/12/2018] [Accepted: 12/07/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To systematically review available evidence and establish guidelines related to the risk of developing thrombosis and the management of small animals with antithrombotics. DESIGN Standardized, systematic evaluation of the literature (identified by searching Medline via PubMed and CAB abstracts) was carried out in 5 domains (Defining populations at risk; Defining rational therapeutic use; Defining evidence-based protocols; Refining and monitoring antithrombotic therapies; and Discontinuing antithrombotic therapies). Evidence evaluation was carried out using Population, Intervention, Comparison, Outcome generated within each domain questions to address specific aims. This was followed by categorization of relevant articles according to level of evidence and quality (Good, Fair, or Poor). Synthesis of these data led to the development of a series of statements. Consensus on the final guidelines was achieved via Delphi-style surveys. Draft recommendations were presented at 2 international veterinary conferences and made available for community assessment, review, and comment prior to final revisions and publication. SETTINGS Academic and referral veterinary medical centers. RESULTS Over 500 studies were reviewed in detail. Worksheets from all 5 domains generated 59 statements with 83 guideline recommendations that were refined during 3 rounds of Delphi surveys. A high degree of consensus was reached across all guideline recommendations. CONCLUSIONS Overall, systematic evidence evaluations yielded more than 80 recommendations for the treatment of small animals with or at risk of developing thrombosis. Numerous significant knowledge gaps were highlighted by the evidence reviews undertaken, indicating the need for substantial additional research in this field.
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Affiliation(s)
- Robert Goggs
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY
| | - Marie-Claude Blais
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Benjamin M Brainard
- Department of Small Animal Medicine and Surgery, University of Georgia, Athens, GA
| | - Daniel L Chan
- Department Clinical Science and Services, The Royal Veterinary College, London, United Kingdom
| | - Armelle M deLaforcade
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA
| | - Elizabeth Rozanski
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA
| | - Claire R Sharp
- School of Veterinary and Life Sciences, College of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
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Goggs R, Bacek L, Bianco D, Koenigshof A, Li RHL. Consensus on the Rational Use of Antithrombotics in Veterinary Critical Care (CURATIVE): Domain 2-Defining rational therapeutic usage. J Vet Emerg Crit Care (San Antonio) 2019; 29:49-59. [PMID: 30654415 DOI: 10.1111/vec.12791] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 11/30/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To systematically review available evidence to determine when small animals at risk of thrombosis should be treated with antiplatelet agents and anticoagulants, which antiplatelet and anticoagulant agents are most effective, and when multimodal therapy is indicated. DESIGN Standardized, systematic evaluation of the literature, categorization of relevant articles according to level of evidence (LOE) and quality (Good, Fair, or Poor), and development of consensus on conclusions via a Delphi-style survey for application of the concepts to clinical practice. Draft recommendations were presented at 2 international veterinary conferences and made available for community assessment, review, and comment prior to final revisions and publication. SETTINGS Academic and referral veterinary medical centers. RESULTS Databases searched included Medline via PubMed and CAB abstracts. Twelve Population Intervention Comparison Outcome questions were devised and generated corresponding worksheets investigating indications for use of antithrombotic drugs in small animals. Seventy-eight studies were reviewed in detail. Most studies assessed were experimentally controlled laboratory studies in companion animals (56 LOE 3) with smaller numbers of LOE 2 (1), LOE 4 (5), LOE 5 (6), and LOE 6 (4) studies assessed. Only 5 randomized controlled clinical trials were identified (LOE 1, Good-Fair). The 12 worksheets generated 21 guidelines with 17 guideline statements that were refined during 3 rounds of Delphi surveys. A high degree of consensus was reached across all guideline recommendations during the Delphi process. CONCLUSIONS Overall, systematic evidence evaluations generated 2 strong recommendations, 19 weak recommendations (formulated as suggestions), 9 situations where the evidence was insufficient to make strong recommendations, and 8 situations where no relevant evidence was retrieved to aid guideline generation. Numerous significant knowledge gaps were highlighted by the evidence reviews undertaken, indicating the need for substantial additional research in this field.
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Affiliation(s)
- Robert Goggs
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY
| | - Lenore Bacek
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL
| | | | - Amy Koenigshof
- Department of Small Animal Clinical Sciences, Michigan State University, East Lansing, MI
| | - Ronald H L Li
- Department of Veterinary Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA
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Serpa PBS, Brooks MB, Divers T, Ness S, Birschmann I, Papich MG, Stokol T. Pharmacokinetics and Pharmacodynamics of an Oral Formulation of Apixaban in Horses After Oral and Intravenous Administration. Front Vet Sci 2018; 5:304. [PMID: 30564584 PMCID: PMC6288471 DOI: 10.3389/fvets.2018.00304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/19/2018] [Indexed: 01/20/2023] Open
Abstract
Horses with inflammatory and infectious disorders are often treated with injectable heparin anticoagulants to prevent thrombotic complications. In humans, a new class of direct oral acting anticoagulants (DOAC) appear as effective as heparin, while eliminating the need for daily injections. Our study in horses evaluated apixaban, a newly approved DOAC for human thromboprophylaxis targeting activated factor X (Xa). Our goals were to: (1) Determine pharmacokinetics and pharmacodynamics of apixaban after oral (PO) and intravenous (IV) administration in horses; (2) Detect any inhibitory effects of apixaban on ex vivo Equid herpesvirus type 1 (EHV-1)-induced platelet activation, and (3) Compare an anti-Xa bioactivity assay with ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) for measuring apixaban concentrations. In a blinded placebo-controlled cross-over study, five horses received a single dose (0.2 mg/kg) of apixaban or placebo PO or IV. Blood was collected before and at 3 (IV) or 15 (PO) min, 30 and 45 min, and 1, 2, 3, 4, 6, 8, and 24 h after dosing for measuring apixaban UPLC-MS concentrations and anti-Xa activity. Pharmacodynamic response was measured in a dilute prothrombin time (dPT) assay. Flow cytometric EHV-1-induced platelet P-selectin expression and clinical pathologic safety testing were performed at baseline, 2 and 24 h and baseline and 24 h, respectively. We found no detectable apixaban in plasma PO administration. After IV administration, plasma apixaban levels followed a two-compartment model, with concentrations peaking at 3 min and decreasing to undetectable levels by 8 h. The elimination half-life was 1.3 ± 0.2 h, with high protein binding (92–99%). The dPT showed no relationship to apixaban UPLC-MS concentration and apixaban did not inhibit EHV-1-induced platelet activation after IV dosing. Apixaban anti-Xa activity showed excellent correlation to UPLC-MS (r2 = 0.9997). Our results demonstrate that apixaban has no apparent clinical utility as an anticoagulant for horses due to poor oral availability.
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Affiliation(s)
- Priscila B S Serpa
- Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Marjory B Brooks
- Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Thomas Divers
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Sally Ness
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Ingvild Birschmann
- Institut für Laboratoriums-und Transfusionsmedizin, Herz-und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Mark G Papich
- Department of Molecular Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Tracy Stokol
- Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
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Bansal VK, Herzog CA, Sarnak MJ, Choi MJ, Mehta R, Jaar BG, Rocco MV, Kramer H. Oral Anticoagulants to Prevent Stroke in Nonvalvular Atrial Fibrillation in Patients With CKD Stage 5D: An NKF-KDOQI Controversies Report. Am J Kidney Dis 2017; 70:859-868. [DOI: 10.1053/j.ajkd.2017.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 08/08/2017] [Indexed: 12/17/2022]
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Wong H, Bohnert T, Damian-Iordache V, Gibson C, Hsu CP, Krishnatry AS, Liederer BM, Lin J, Lu Q, Mettetal JT, Mudra DR, Nijsen MJ, Schroeder P, Schuck E, Suryawanshi S, Trapa P, Tsai A, Wang H, Wu F. Translational pharmacokinetic-pharmacodynamic analysis in the pharmaceutical industry: an IQ Consortium PK-PD Discussion Group perspective. Drug Discov Today 2017; 22:1447-1459. [DOI: 10.1016/j.drudis.2017.04.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/03/2017] [Accepted: 04/25/2017] [Indexed: 02/06/2023]
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Borgarelli M, Lanz O, Pavlisko N, Abbott JA, Menciotti G, Aherne M, Lahmers SM, Lahmers KK, Gammie JS. Mitral valve repair in dogs using an ePTFE chordal implantation device: a pilot study. J Vet Cardiol 2017; 19:256-267. [PMID: 28576476 DOI: 10.1016/j.jvc.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 02/07/2017] [Accepted: 03/28/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Mitral valve (MV) regurgitation due to degenerative MV disease is the leading cause of cardiac death in dogs. We carried out preliminary experiments to determine the feasibility and short-term effects of beating-heart MV repair using an expanded polytetrafluorethylene (ePTFE) chordal implantation device (Harpoon TSD-5) in dogs. ANIMALS This study involved six healthy purpose-bred Beagles (weight range 8.9-11.4 kg). MATERIAL AND METHODS Following a mini-thoracotomy performed under general anesthesia, the TSD-5 was used to place 1 or 2 artificial ePTFE cords on the anterior MV leaflet or the posterior MV leaflet via a left-ventricular transapical approach. The procedure was guided and monitored by transesophageal echocardiography. Postoperative antithrombotic treatment consisted of clopidogrel or a combination of clopidogrel and apixaban. Dogs were serially evaluated by transthoracic echocardiography at day 1, 7, 14, 21, and 30. The hearts were then examined for evaluation of tissues reactions and to detect signs of endothelialization. RESULTS One or two chords were successfully implanted in five dogs. Four dogs completed the 30 days follow-up. One dog died intra-operatively because of aortic perforation. One dog died early post-operatively from a hemorrhagic pleural effusion attributed to overly aggressive antithrombotic treatment. One dog developed a thrombus surrounding both the knot and the synthetic cord. Postmortem exam confirmed secure placement of ePTFE knots in the mitral leaflets in all dogs and the presence of endothelialization of the knots and chords. CONCLUSIONS These preliminary results demonstrate the feasibility of artificial chordal placement using an ePTFE cordal implantation device in dogs.
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Affiliation(s)
- M Borgarelli
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA.
| | - O Lanz
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - N Pavlisko
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - J A Abbott
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - G Menciotti
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - M Aherne
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - S M Lahmers
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Phase II, Duck Pond Dr., VA 24061, USA
| | - K K Lahmers
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, 205 Duck Pond Dr., VA 24061, USA
| | - J S Gammie
- Division of Cardiac Surgery, University of Maryland School of Medicine, 110 S. Paca St., MD 21201, USA
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Ladziata V(U, Glunz PW, Zou Y, Zhang X, Jiang W, Jacutin-Porte S, Cheney DL, Wei A, Luettgen JM, Harper TM, Wong PC, Seiffert D, Wexler RR, Priestley ES. Synthesis and P1′ SAR exploration of potent macrocyclic tissue factor-factor VIIa inhibitors. Bioorg Med Chem Lett 2016; 26:5051-5057. [DOI: 10.1016/j.bmcl.2016.08.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 08/24/2016] [Accepted: 08/26/2016] [Indexed: 10/21/2022]
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Gulpen AJW, Ten Cate-Hoek AJ, Ten Cate H. Upstream versus downstream thrombin inhibition. Expert Rev Cardiovasc Ther 2016; 14:1273-1282. [DOI: 10.1080/14779072.2016.1224179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Voukalis C, Lip GYH, Shantsila E. Drug-drug interactions of non-vitamin K oral anticoagulants. Expert Opin Drug Metab Toxicol 2016; 12:1445-1461. [PMID: 27535163 DOI: 10.1080/17425255.2016.1225037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The approval of non-vitamin K oral anticoagulants (NOACs) as antithrombotic alternatives to vitamin K antagonists (VKAs) has changed clinical practice. However, the efficacy and safety of the four most commonly used NOACs (dabigatran, rivaroxaban, apixaban and edoxaban) might be compromised by co-administration of other medications used for various major comorbidities. Dose adjustment of the NOACs may be needed to avert cases of concomitant medication affecting NOACs absorption, metabolism and coagulation. Areas covered: This review summarizes the current knowledge regarding drug-drug interactions of NOACs in order to guide health professionals regarding the dose modification required if the NOACs are co-administered with other medication with potential significant interactions. The data were acquired from searches of PubMed and also from the NOAC reports to the European Medicines Agency and Food and Drug Administration Agency. Expert opinion: Most of the studies in this field have been organized by pharmaceutical companies. Independent research and registries will provide more information in the near future about the drug-drug interactions of NOACs. P-glycoprotein transporter and cytochrome P450 enzyme complexes appear to be the main pathways where the most drug-drug interactions with NOACs occur.
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Affiliation(s)
- Christos Voukalis
- a University of Birmingham Institute of Cardiovascular Sciences, City Hospital , Birmingham , UK
| | - Gregory Y H Lip
- a University of Birmingham Institute of Cardiovascular Sciences, City Hospital , Birmingham , UK
| | - Eduard Shantsila
- a University of Birmingham Institute of Cardiovascular Sciences, City Hospital , Birmingham , UK
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Jaramillo Salamanca RG, Jiménez Gómez JD, Pinilla Roa AE. Uso de los anticoagulantes orales directos en la práctica clínica. REVISTA DE LA FACULTAD DE MEDICINA 2016. [DOI: 10.15446/revfacmed.v64n2.49963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
<p>Los anticoagulantes orales directos surgieron en respuesta a la búsqueda de un anticoagulante ideal después de que la warfarina fuera por mucho tiempo el único disponible. Los inhibidores del factor X activado —rivaroxabán y apixabán— y el inhibidor de trombina —dabigatrán etexilato— ya están aprobados en Colombia. Estos grupos farmacológicos están indicados en la tromboprofilaxis luego de artroplastia de rodilla y cadera, en la prevención del accidente cerebrovascular y el embolismo sistémico en pacientes con fibrilación auricular no valvular y en el tratamiento del tromboembolismo venoso. La aprobación de los inhibidores se dio luego de mostrar eficacia y seguridad al compararse con warfarina y enoxaparina. Entre las ventajas que estos presentan figuran las siguientes: inicio rápido de acción, efecto predecible, poca variabilidad interindividual que elimina la necesidad de la monitorización frecuente y menos interacciones medicamentosas; pero, al igual que en la warfarina, el sangrado es el principal evento adverso. El objetivo de esta revisión es conocer la farmacología de los anticoagulantes orales directos aprobados en Colombia, los resultados de los ensayos clínicos que respaldan su uso, la dosificación, el uso perioperatorio y el cambio entre anticoagulantes; situaciones que plantean particularidades para cada uno.</p>
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Bapat P, Pinto LSR, Lubetsky A, Aleksa K, Berger H, Koren G, Ito S. Examining the transplacental passage of apixaban using the dually perfused human placenta. J Thromb Haemost 2016; 14:1436-41. [PMID: 27149680 DOI: 10.1111/jth.13353] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/18/2016] [Indexed: 12/16/2022]
Abstract
UNLABELLED Essentials Apixaban is a novel oral anticoagulant that has not been studied in pregnant patients. Our objective was to determine the rate and extent of the placental transfer of apixaban. Apixaban rapidly crosses the ex vivo term human placenta from maternal to fetal circulation. Fetal apixaban levels in vivo are estimated to be 35-90% of the corresponding maternal levels. SUMMARY Background Apixaban is a novel oral anticoagulant that is increasingly being prescribed to women of reproductive age. However, information regarding its placental transfer is non-existent. Objective To determine the rate and extent of placental transfer of apixaban, using the human placenta ex vivo. Methods Placentae collected after Caesarean or vaginal delivery of healthy term infants were perfused in the respective maternal and fetal circulation. At the start of the experiment, apixaban was added to the maternal circulation at a concentration of 150 ng mL(-1) , and samples from maternal and fetal reservoirs were collected over 3 h. Results There was a rapid decline of apixaban in the maternal compartment, followed by emergence in the fetal compartment with a median fetal-to-maternal drug concentration ratio of 0.77 (interquartile range [IQR], 0.76-0.81) and fetal concentration of 39.0 ng mL(-1) (IQR, 36.8-40.6) after 3 h (n = 5). The perfusion results were subsequently adjusted to account for differences in the concentration of plasma proteins in maternal and fetal blood, as apixaban remains highly bound to albumin and alpha-1 acid glycoprotein. After the adjustment, the predicted fetal-to-maternal ratio of total (bound plus unbound) apixaban concentrations in vivo ranged from 0.35 to 0.90. Conclusions We conclude that unbound apixaban rapidly crosses from the maternal to fetal circulation. We further predict that total apixaban concentrations in cord blood in vivo are 35-90% of the corresponding maternal levels, suggesting that apixaban could have a possible adverse effect on fetal and neonatal coagulation.
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Affiliation(s)
- P Bapat
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada
| | - L S R Pinto
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada
| | - A Lubetsky
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada
| | - K Aleksa
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada
| | - H Berger
- Department of Obstetrics and Gynecology, St Michael's Hospital, Toronto, ON, Canada
| | - G Koren
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - S Ito
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada
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Vakkalagadda B, Frost C, Byon W, Boyd RA, Wang J, Zhang D, Yu Z, Dias C, Shenker A, LaCreta F. Effect of Rifampin on the Pharmacokinetics of Apixaban, an Oral Direct Inhibitor of Factor Xa. Am J Cardiovasc Drugs 2016; 16:119-27. [PMID: 26749408 DOI: 10.1007/s40256-015-0157-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Apixaban is a substrate of cytochrome P450 3A4 (CYP3A4) and P-glycoprotein. The effects of rifampin, a strong inducer of CYP3A4 and P-glycoprotein, on the pharmacokinetics of oral and intravenous apixaban were evaluated in an open-label, randomized, sequential crossover study. METHODS Twenty healthy participants received single doses of apixaban 5 mg intravenously on day 1 and 10 mg orally on day 3, followed by rifampin 600 mg once daily on days 5-15. Finally, participants received single doses of apixaban 5 mg intravenously and 10 mg orally separately on days 12 and 14 in one of two randomized sequences. RESULTS Apixaban, given intravenously and orally, was safe and well tolerated when administered in the presence and absence of rifampin. Apixaban absolute oral bioavailability was 49 % when administered alone and 39 % following induction by rifampin. Rifampin reduced apixaban area under the plasma concentration-time curve from time zero to infinity (AUC∞) by 39 % after intravenous administration and by 54 % after oral administration. Rifampin induction increased mean clearance by 1.6-fold for intravenous apixaban and mean apparent clearance by 2.1-fold for oral apixaban, indicating rifampin affected both pre-systemic and systemic apixaban elimination pathways. CONCLUSION Co-administration of apixaban with rifampin reduced apixaban exposure via both decreased bioavailability and increased systemic clearance.
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Affiliation(s)
- Blisse Vakkalagadda
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA
| | - Charles Frost
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA.
| | - Wonkyung Byon
- Global Innovative Pharma Business Clinical Pharmacology, Pfizer Inc, Groton, CT, USA
| | - Rebecca A Boyd
- Global Innovative Pharma Business Clinical Pharmacology, Pfizer Inc, Groton, CT, USA
| | - Jessie Wang
- Global Biometric Sciences, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Donglu Zhang
- Pharmaceutical Candidate Optimization, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Zhigang Yu
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA
| | - Clapton Dias
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA
| | - Andrew Shenker
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA
| | - Frank LaCreta
- Research and Development, Discovery Medicine and Clinical Pharmacology, Bristol-Myers Squibb Company, Mail Stop E12-16, Route 206 and Province Line Road, Princeton, NJ, 08543-4000, USA
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Myers JA, Wittenburg LA, Olver CS, Martinez CM, Bright JM. Pharmacokinetics and pharmacodynamics of the factor Xa inhibitor apixaban after oral and intravenous administration to cats. Am J Vet Res 2016. [PMID: 26207972 DOI: 10.2460/ajvr.76.8.732] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine pharmacokinetic and pharmacodynamic properties of the novel factor Xa inhibitor apixaban in clinically normal cats. ANIMALS 5 purpose-bred domestic shorthair cats. PROCEDURES A single dose of apixaban (0.2 mg/kg, PO) was administered to each cat (time 0), and blood samples were obtained at 0, 15, 30, 45, 60, 120, 240, 360, 480, and 1,440 minutes. After a 1-week washout period, another dose of apixaban (0.2 mg/kg, IV) was administered to each cat, and blood samples were obtained at 0, 5, 10, 15, 30, 45, 60, 120, 240, 360, 480, and 1,440 minutes. Apixaban concentrations in plasma were measured via liquid chromatography-tandem mass spectrometry. Pharmacodynamic effects of apixaban were determined with a commercial assay for factor × activity, which measures endogenous factor Xa activity chromogenically. RESULTS Factor Xa was inhibited as a function of time after a single dose of apixaban administered orally or IV, and a direct inverse correlation with the plasma apixaban concentration was detected. Pharmacokinetic analysis revealed moderate clearance, short half-life, and high bioavailability for apixaban. A 2-compartment model was fit to the IV pharmacokinetic data; compartmental modeling could not be used to adequately describe the oral data because of substantial interindividual variability. CONCLUSIONS AND CLINICAL RELEVANCE Results inticated that apixaban was an effective inhibitor of factor Xa in cats. Further studies will be needed to determine pharmacokinetics and pharmacodynamics after multidose administration, effects of cardiac disease on pharmacokinetics and pharmacodynamics, dosing recommendations, and efficacy of apixaban for use in the treatment and prevention of thromboembolic disease in cats.
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38
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Novel phenylalanine derived diamides as Factor XIa inhibitors. Bioorg Med Chem Lett 2016; 26:472-478. [DOI: 10.1016/j.bmcl.2015.11.089] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 11/20/2015] [Accepted: 11/24/2015] [Indexed: 12/30/2022]
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Xiong Q, Lau YC, Lip GYH. Apixaban versus edoxaban for stroke prevention in nonvalvular atrial fibrillation. J Comp Eff Res 2015; 4:367-76. [PMID: 26274798 DOI: 10.2217/cer.15.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Oral anticoagulation therapy is the mainstay of stroke prevention in nonvalvular atrial fibrillation patients. Vitamin K antagonists (such as warfarin) have been effective conventional oral anticoagulants for several decades. However, due to their limitations in clinical use, several nonvitamin K antagonist oral anticoagulants (NOACs, including dabigatran, rivaroxaban, apixaban and edoxaban) have been developed. Nonetheless, no head to head trials have been performed to directly compare these NOACs in patient cohorts. In this review article, two direct factor Xa inhibitors, apixaban and edoxaban, are briefly described with focus on their pharmacokinetic and pharmacodynamic profiles, plus drug interactions. Moreover, both efficacy and safety will be discussed based on the available data from the large Phase III clinical trials and indirect comparison studies.
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Affiliation(s)
- Qinmei Xiong
- University of Birmingham, Centre for Cardiovascular Sciences, City Hospital, Birmingham, UK.,Cardiovascular Department, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yee C Lau
- University of Birmingham, Centre for Cardiovascular Sciences, City Hospital, Birmingham, UK
| | - Gregory Y H Lip
- University of Birmingham, Centre for Cardiovascular Sciences, City Hospital, Birmingham, UK.,Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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40
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Baruch L. Laboratory Monitoring of Anticoagulant Medications: Focus on Novel Oral Anticoagulants. Postgrad Med 2015; 125:135-45. [DOI: 10.3810/pgm.2013.03.2647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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41
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Secrétan PH, Sadou-Yayé H, Aymes-Chodur C, Bernard M, Solgadi A, Amrani F, Yagoubi N, Do B. A comprehensive study of apixaban's degradation pathways under stress conditions using liquid chromatography coupled to multistage mass spectrometry. RSC Adv 2015. [DOI: 10.1039/c5ra00171d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The main degradation pathways of apixaban, a novel anticoagulant drug acting as factor Xa inhibitor, has been established based on the degradation products identification using liquid chromatography coupled to multistage high resolution mass spectrometry.
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Affiliation(s)
- Philippe-Henri Secrétan
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
| | - Hassane Sadou-Yayé
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
- Assistance Publique-Hôpitaux de Paris
| | - Caroline Aymes-Chodur
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
| | - Mélisande Bernard
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
- Assistance Publique-Hôpitaux de Paris
| | - Audrey Solgadi
- Université Paris-Sud
- UFR de Pharmacie
- SAMM – Service d'Analyse des Médicaments et Métabolites
- Institut d'Innovation Thérapeutique
- France
| | - Fatma Amrani
- Assistance Publique-Hôpitaux de Paris
- Agence Générale des Equipements et Produits de Santé
- Département de Contrôle Qualité et Développement Analytique
- 75005 Paris
- France
| | - Najet Yagoubi
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
| | - Bernard Do
- Université Paris Sud
- UFR de Pharmacie, Groupe Matériaux et Santé
- Institut d'Innovation Thérapeutique
- France
- Assistance Publique-Hôpitaux de Paris
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42
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Hanna MS, Mohan P, Knabb R, Gupta E, Frost C, Lawrence JH. Development of apixaban: a novel anticoagulant for prevention of stroke in patients with atrial fibrillation. Ann N Y Acad Sci 2014; 1329:93-106. [PMID: 25377080 PMCID: PMC4260137 DOI: 10.1111/nyas.12567] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The factor Xa inhibitor apixaban is one of the novel anticoagulants to emerge as alternatives to long-standing standards of care that include low-molecular-weight heparin and warfarin. The development of apixaban reflects a strategy to optimize the clinical pharmacology profile, dosing posology, trial designs, and statistical analyses across multiple indications, and to seek alignment with global health authorities. The primary objective of dose selection was to maintain balance between efficacy and bleeding risk. Twice-daily dosing of apixaban, rather than once daily, was chosen to lower peak concentrations and reduce fluctuations between peak and trough levels. Our discussion here focuses on the use of apixaban for stroke prevention in nonvalvular atrial fibrillation (NVAF). Supporting this indication, a pair of registrational trials was conducted that enrolled the full spectrum of patients who, by guidelines, were eligible for anticoagulation. In the AVERROES study of patients who were unsuitable for warfarin therapy, apixaban was superior to aspirin in reducing the risk of stroke or systemic embolism (SSE), without a significant increase in major bleeding (MB). In the ARISTOTLE (Apixaban for Reduction In STroke and Other ThromboemboLic Events in Atrial Fibrillation) study, apixaban was superior to warfarin on the rates of SSE, MB, and all-cause mortality. Overall, these studies have demonstrated a substantially favorable benefit–risk profile for apixaban over warfarin and aspirin in NVAF.
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Affiliation(s)
- Michael S Hanna
- Global Clinical Research, Research & Development, Bristol-Myers Squibb Company, Princeton, New Jersey
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43
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Harenberg J, Krämer S, Du S, Zolfaghari S, Schulze A, Krämer R, Weiss C, Wehling M, Lip GYH. Measurement of rivaroxaban and apixaban in serum samples of patients. Eur J Clin Invest 2014; 44:743-52. [PMID: 24931429 PMCID: PMC4143952 DOI: 10.1111/eci.12291] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 06/11/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND The determination of rivaroxaban and apixaban from serum samples of patients may be beneficial in specific clinical situations when additional blood sampling for plasma and thus the determination of factor Xa activity is not feasible or results are not plausible. MATERIALS AND METHODS The primary aim of this study was to compare the concentrations of rivaroxaban and apixaban in serum with those measured in plasma. Secondary aims were the performance of three different chromogenic methods and concentrations in patients on treatment with rivaroxaban 10 mg od (n = 124) or 20 mg od (n = 94) or apixaban 5 mg bid (n = 52) measured at different time. RESULTS Concentrations of rivaroxaban and apixaban in serum were about 20-25% higher compared with plasma samples with a high correlation (r = 0·79775-0·94662) using all assays (all P < 0·0001). The intraclass correlation coefficients were about 0·90 for rivaroxaban and 0·55 for apixaban. Mean rivaroxaban concentrations were higher at 2 and 3 h compared with 1 and 12 h after administration measured from plasma and serum samples (all P-values < 0·05) and were not different between 1 vs. 12 h (plasma and serum). CONCLUSIONS The results indicate that rivaroxaban and apixaban concentrations can be determined specifically from serum samples.
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Affiliation(s)
- Job Harenberg
- Department of Clinical Pharmacology, Medical Faculty Mannheim, Ruprecht-Karls University Heidelberg, Mannheim, Germany
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44
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Orwat MJ, Qiao JX, He K, Rendina AR, Luettgen JM, Rossi KA, Xin B, Knabb RM, Wexler RR, Lam PY, Pinto DJ. Orally bioavailable factor Xa inhibitors containing alpha-substituted gem-dimethyl P4 moieties. Bioorg Med Chem Lett 2014; 24:3341-5. [DOI: 10.1016/j.bmcl.2014.05.101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/27/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023]
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45
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Mantha S, Ansell J. Indirect comparison of dabigatran, rivaroxaban, apixaban and edoxaban for the treatment of acute venous thromboembolism. J Thromb Thrombolysis 2014; 39:155-65. [DOI: 10.1007/s11239-014-1102-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Skeik N, Murphy CJ, Porten BR. The role of novel anticoagulants in the management of venous thromboembolism. Vasc Med 2014; 19:205-214. [DOI: 10.1177/1358863x14534309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Venous thromboembolism (VTE) is a common health condition with a high mortality and morbidity as well as significant health cost. Traditional treatment with parenteral heparin followed by vitamin K antagonist (VKA) has helped to decrease both morbidity and mortality over years. However, difficulties with warfarin such as INR monitoring, drug-drug interactions, and dietary restrictions has led to research for new anticoagulants. Thus, novel anticoagulants such as direct thrombin and factor X inhibitors have been developed and studied for various indications including the management of VTE. There is now good evidence that some novel anticoagulants are at least as effective as traditional anticoagulation therapy with probably safer outcomes. We have reviewed the literature on the medical management of VTE with the focus on the role of dabigatran, rivaroxaban, apixaban and edoxaban for this indication.
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47
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Skeik N, Rumery KK, Rodriguez GT. The New Era of Anticoagulation. Ann Vasc Surg 2014; 28:503-14. [DOI: 10.1016/j.avsg.2013.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 07/31/2013] [Indexed: 11/30/2022]
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48
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Quan ML, Wong PC, Wang C, Woerner F, Smallheer JM, Barbera FA, Bozarth JM, Brown RL, Harpel MR, Luettgen JM, Morin PE, Peterson T, Ramamurthy V, Rendina AR, Rossi KA, Watson CA, Wei A, Zhang G, Seiffert D, Wexler RR. Tetrahydroquinoline Derivatives as Potent and Selective Factor XIa Inhibitors. J Med Chem 2014; 57:955-69. [DOI: 10.1021/jm401670x] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mimi L. Quan
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Pancras C. Wong
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Cailan Wang
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Francis Woerner
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Joanne M. Smallheer
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Frank A. Barbera
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Jeffrey M. Bozarth
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Randi L. Brown
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Mark R. Harpel
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Joseph M. Luettgen
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Paul E. Morin
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Tara Peterson
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Vidhyashankar Ramamurthy
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Alan R. Rendina
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Karen A. Rossi
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Carol A. Watson
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Anzhi Wei
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Ge Zhang
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Dietmar Seiffert
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
| | - Ruth R. Wexler
- Discovery Chemistry and Cardiovascular
Biology, Research and Development, Bristol-Myers Squibb Company, 311 Pennington-Rocky
Hill Road, Pennington, New
Jersey 08543, United States
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49
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Rao MP, Pokorney SD, Granger CB. Atrial fibrillation: a review of recent studies with a focus on those from the duke clinical research institute. SCIENTIFICA 2014; 2014:901586. [PMID: 25215263 PMCID: PMC4152955 DOI: 10.1155/2014/901586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 06/24/2014] [Indexed: 05/13/2023]
Abstract
Atrial fibrillation is the most common arrhythmia and accounts for one-third of hospitalizations for rhythm disorders in the United States. The prevalence of atrial fibrillation averages 1% and increases with age. With the aging of the population, the number of patients with atrial fibrillation is expected to increase 150% by 2050, with more than 50% of atrial fibrillation patients being over the age of 80. This increasing burden of atrial fibrillation will lead to a higher incidence of stroke, as patients with atrial fibrillation have a five- to sevenfold greater risk of stroke than the general population. Strokes secondary to atrial fibrillation have a worse prognosis than in patients without atrial fibrillation. Vitamin K antagonists (e.g., warfarin), direct thrombin inhibitors (dabigatran), and factor Xa inhibitors (rivaroxaban and apixaban) are all oral anticoagulants that have been FDA approved for the prevention of stroke in atrial fibrillation. This review will summarize the experience of anticoagulants in patients with atrial fibrillation with a focus on the experience at the Duke Clinic Research Institute.
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Affiliation(s)
- Meena P. Rao
- Cardiology Division, Duke University Hospital, 2301 Erwin Road, DUMC 3845, Durham, NC 27710, USA
- *Meena P. Rao:
| | - Sean D. Pokorney
- Cardiology Division, Duke University Hospital, 2301 Erwin Road, DUMC 3845, Durham, NC 27710, USA
| | - Christopher B. Granger
- Cardiology Division, Duke University Hospital, 2301 Erwin Road, DUMC 3845, Durham, NC 27710, USA
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Escolar G, Fernandez-Gallego V, Arellano-Rodrigo E, Roquer J, Reverter JC, Sanz VV, Molina P, Lopez-Vilchez I, Diaz-Ricart M, Galan AM. Reversal of apixaban induced alterations in hemostasis by different coagulation factor concentrates: significance of studies in vitro with circulating human blood. PLoS One 2013; 8:e78696. [PMID: 24244342 PMCID: PMC3823858 DOI: 10.1371/journal.pone.0078696] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 09/07/2013] [Indexed: 11/18/2022] Open
Abstract
Apixaban is a new oral anticoagulant with a specific inhibitory action on FXa. No information is available on the reversal of the antihemostatic action of apixaban in experimental or clinical settings. We have evaluated the effectiveness of different factor concentrates at reversing modifications of hemostatic mechanisms induced by moderately elevated concentrations of apixaban (200 ng/ml) added in vitro to blood from healthy donors (n = 10). Effects on thrombin generation (TG) and thromboelastometry (TEM) parameters were assessed. Modifications in platelet adhesive, aggregating and procoagulant activities were evaluated in studies with blood circulating through damaged vascular surfaces, at a shear rate of 600 s(-1). The potential of prothrombin complex concentrates (PCCs; 50 IU/kg), activated prothrombin complex concentrates (aPCCs; 75 IU/kg), or activated recombinant factor VII (rFVIIa; 270 μg/kg), at reversing the antihemostatic actions of apixaban, were investigated. Apixaban interfered with TG kinetics. Delayed lag phase, prolonged time to peak and reduced peak values, were improved by the different concentrates, though modifications in TG patterns were diversely affected depending on the activating reagents. Apixaban significantly prolonged clotting times (CTs) in TEM studies. Prolongations in CTs were corrected by the different concentrates with variable efficacies (rFVIIa≥aPCC>PCC). Apixaban significantly reduced fibrin and platelet interactions with damaged vascular surfaces in perfusion studies (p<0.05 and p<0.01, respectively). Impairments in fibrin formation were normalized by the different concentrates. Only rFVIIa significantly restored levels of platelet deposition. Alterations in hemostasis induced by apixaban were variably compensated by the different factor concentrates investigated. However, effects of these concentrates were not homogeneous in all the tests, with PCCs showing more efficacy in TG, and rFVIIa being more effective on TEM and perfusion studies. Our results indicate that rFVIIa, PCCs and aPCCs have the potential to restore platelet and fibrin components of the hemostasis previously altered by apixaban.
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Affiliation(s)
- Gines Escolar
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | | | - Eduardo Arellano-Rodrigo
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Jaume Roquer
- Department of Neurology, Hospital Universitari del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Joan Carles Reverter
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Victoria Veronica Sanz
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Patricia Molina
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Irene Lopez-Vilchez
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Maribel Diaz-Ricart
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Ana Maria Galan
- Department of Hemotherapy-Hemostasis, Hospital Clinic, Centre de Diagnostic Biomedic, Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
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