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Grovu R, Nguyen A, Sangaraju K, Wei C, Mustafa A, Slobodnick A. Anti-thrombotics and major adverse cardiovascular events in anti-phospholipid syndrome: a cross-sectional study using the 2016-2018 National Inpatient Sample database. Scand J Rheumatol 2023; 52:696-702. [PMID: 37584636 DOI: 10.1080/03009742.2023.2238402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/17/2023] [Indexed: 08/17/2023]
Abstract
OBJECTIVE This study assessed the relationship between anti-thrombotics and major adverse cardiovascular events (MACE) in patients with anti-phospholipid syndrome (APS). METHOD We included 13 947 subjects with APS from the National (Nationwide) Inpatient Sample (NIS) database for 2016-2018, and collected relevant covariates and demographic data using ICD-10 codes. Our two primary outcomes were MACE and death. We performed multivariate logistic regression analysis to assess the impact of various anti-thrombotic regimens on MACE/death in our primary cohort and high-risk subgroups. RESULTS Patients on anti-coagulants had significantly reduced odds of MACE [odds ratio (OR) 0.68, 95% confidence interval (CI) 0.62-0.76, p < 0.001] as well as each of its subcomponents. Those not on any anti-coagulants had significantly increased odds of MACE (OR 1.47, 95% CI 1.24-1.72, p < 0.001). No significant association was found between anti-platelet use and the odds of MACE (p > 0.05). Patients on anti-coagulants were the only class that appeared to have a mortality benefit with reduced odds for death (OR 0.64, 95% CI 0.49-0.84, p = 0.001). In the subgroups at higher risk for MACE (those with atrial fibrillation and thrombocytopenia), full anti-coagulation therapy was also the only anti-thrombotic class that significantly affected the odds of MACE, with a protective effect on MACE, but had no mortality benefit. CONCLUSION Patients with APS are most likely to benefit from anti-coagulant therapy in reducing MACE. Furthermore, anti-platelets alone or in combination with anti-coagulants are probably not beneficial in MACE reduction and may even increase risk.
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Affiliation(s)
- R Grovu
- Internal Medicine Department, Staten Island University Hospital, New York, NY, USA
| | | | - K Sangaraju
- Internal Medicine Department, Staten Island University Hospital, New York, NY, USA
| | - C Wei
- Internal Medicine Department, Staten Island University Hospital, New York, NY, USA
| | - A Mustafa
- Internal Medicine Department, Staten Island University Hospital, New York, NY, USA
| | - A Slobodnick
- Rheumatology Department, Staten Island University Hospital, New York, NY, USA
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2
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Oh J, Yang E, Jang IJ, Lee H, Yoo H, Chung JY, Lee S, Oh J. Pharmacodynamic and Pharmacokinetic Drug Interactions between Fexuprazan, a Novel Potassium-Competitive Inhibitor, and Aspirin, in Healthy Subjects. Pharmaceutics 2023; 15:pharmaceutics15020549. [PMID: 36839870 PMCID: PMC9958674 DOI: 10.3390/pharmaceutics15020549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
Acid-reducing agents are commonly used for the prevention of aspirin-induced gastrointestinal complications such as peptic ulcers. As a novel potassium-competitive acid blocker, fexuprazan is expected to prevent aspirin-induced gastrointestinal complications. This randomized, open-label study aimed to evaluate the pharmacodynamic and pharmacokinetic interactions between aspirin and fexuprazan in healthy Koreans. Subjects randomized to the aspirin group received 500 mg aspirin in combination with 80 mg fexuprazan. For the fexuprazan group, fexuprazan 80 mg was administered alone and then in combination with aspirin 500 mg. Platelet aggregation inhibited by aspirin and the pharmacokinetic parameters of aspirin and fexuprazan were compared between monotherapy and combination therapy. A total of 22 subjects completed the study. The platelet aggregation-inhibitory activity and systemic exposure to aspirin were not significantly affected by fexuprazan coadministration. The systemic exposure of fexuprazan was decreased up to 20% by aspirin coadministration, which was not regarded as clinically meaningful considering the previously reported exposure-response relationship. In conclusion, there were no clinically relevant pharmacodynamic or pharmacokinetic interactions between aspirin and fexuprazan. This finding suggests the potential of fexuprazan for the prevention of aspirin-induced gastrointestinal complications, serving as a baseline for optimizing its therapeutic application with aspirin.
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Affiliation(s)
- JungJin Oh
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
| | - Eunsol Yang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
- Medical Research Center, Seoul National University, Seoul 03080, Republic of Korea
| | - In-Jin Jang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
| | - Hyejung Lee
- Daewoong Pharmaceutical Co., Ltd., Seoul 06170, Republic of Korea
| | - Hokyun Yoo
- Daewoong Pharmaceutical Co., Ltd., Seoul 06170, Republic of Korea
| | - Jae-Yong Chung
- Department of Clinical Pharmacology and Therapeutics, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - SeungHwan Lee
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
| | - Jaeseong Oh
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
- Correspondence:
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3
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Genetic Association Study and Machine Learning to Investigate Differences in Platelet Reactivity in Patients with Acute Ischemic Stroke Treated with Aspirin. Biomedicines 2022; 10:biomedicines10102564. [PMID: 36289824 PMCID: PMC9599820 DOI: 10.3390/biomedicines10102564] [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: 07/15/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
Aspirin resistance (AR) is a pressing problem in current ischemic stroke care. Although the role of genetic variations is widely considered, the data still remain controversial. Our aim was to investigate the contribution of genetic features to laboratory AR measured through platelet aggregation with arachidonic acid (AA) and adenosine diphosphate (ADP) in ischemic stroke patients. A total of 461 patients were enrolled. Platelet aggregation was measured via light transmission aggregometry. Eighteen single-nucleotide polymorphisms (SNPs) in ITGB3, GPIBA, TBXA2R, ITGA2, PLA2G7, HMOX1, PTGS1, PTGS2, ADRA2A, ABCB1 and PEAR1 genes and the intergenic 9p21.3 region were determined using low-density biochips. We found an association of rs1330344 in the PTGS1 gene with AR and AA-induced platelet aggregation. Rs4311994 in ADRA2A gene also affected AA-induced aggregation, and rs4523 in the TBXA2R gene and rs12041331 in the PEAR1 gene influenced ADP-induced aggregation. Furthermore, the effect of rs1062535 in the ITGA2 gene on NIHSS dynamics during 10 days of treatment was found. The best machine learning (ML) model for AR based on clinical and genetic factors was characterized by AUC = 0.665 and F1-score = 0.628. In conclusion, the association study showed that PTGS1, ADRA2A, TBXA2R and PEAR1 polymorphisms may affect laboratory AR. However, the ML model demonstrated the predominant influence of clinical features.
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4
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Viola P, Gioacchini FM, Astorina A, Pisani D, Scarpa A, Marcianò G, Casarella A, Basile E, Rania V, Re M, Chiarella G. The pharmacological treatment of acute vestibular syndrome. Front Neurol 2022; 13:999112. [PMID: 36158968 PMCID: PMC9500199 DOI: 10.3389/fneur.2022.999112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/17/2022] [Indexed: 11/21/2022] Open
Abstract
Acute vestibular syndrome (AVS) represents a clinical picture that involves urgent management due to the important procession of symptoms accompanying the event, which can be positively or negatively influenced by therapeutic choices and intervention timing. This forces a differential diagnosis and therapeutic choices to be made in conditions that are not always favorable and often not in the specialist field. In this work, we will examine in detail the pharmacological therapeutic possibilities, correlating them to the differential and, as far as possible, to the etiological diagnosis. In particular, the pharmacological possibilities for the two main conditions we can face will be investigated, namely, vestibular neuritis and posterior circulation stroke.
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Affiliation(s)
- Pasquale Viola
- Unit of Audiology, Department of Experimental and Clinical Medicine, Regional Centre of Cochlear Implants and ENT Diseases, Magna Graecia University, Catanzaro, Italy
| | - Federico Maria Gioacchini
- ENT Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Alessia Astorina
- Unit of Audiology, Department of Experimental and Clinical Medicine, Regional Centre of Cochlear Implants and ENT Diseases, Magna Graecia University, Catanzaro, Italy
| | - Davide Pisani
- Unit of Audiology, Department of Experimental and Clinical Medicine, Regional Centre of Cochlear Implants and ENT Diseases, Magna Graecia University, Catanzaro, Italy
| | - Alfonso Scarpa
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
- *Correspondence: Alfonso Scarpa
| | - Gianmarco Marcianò
- Department of Health Science, School of Medicine, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - Alessandro Casarella
- Department of Health Science, School of Medicine, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - Emanuele Basile
- Department of Health Science, School of Medicine, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - Vincenzo Rania
- Department of Health Science, School of Medicine, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - Massimo Re
- ENT Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Giuseppe Chiarella
- Unit of Audiology, Department of Experimental and Clinical Medicine, Regional Centre of Cochlear Implants and ENT Diseases, Magna Graecia University, Catanzaro, Italy
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5
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Xiao J, Song SS, Schlick KH, Xia S, Jiang T, Han T, Jackson RJ, Diniz MA, Dumitrascu OM, Maya MM, Lyden PD, Li D, Yang Q, Fan Z. Disparate trends of atherosclerotic plaque evolution in stroke patients under 18-month follow-up: a 3D whole-brain magnetic resonance vessel wall imaging study. Neuroradiol J 2022; 35:42-52. [PMID: 34159814 PMCID: PMC8826292 DOI: 10.1177/19714009211026920] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE The trend of atherosclerotic plaque feature evolution is unclear in stroke patients with and without recurrence. We aimed to use three-dimensional whole-brain magnetic resonance vessel wall imaging to quantify the morphological changes of causative lesions during medical therapy in patients with symptomatic intracranial atherosclerotic disease. METHODS Patients with acute ischemic stroke attributed to intracranial atherosclerotic disease were retrospectively enrolled if they underwent both baseline and follow-up magnetic resonance vessel wall imaging. The morphological features of the causative plaque, including plaque volume, peak normalized wall index, maximum wall thickness, degree of stenosis, pre-contrast plaque-wall contrast ratio, and post-contrast plaque enhancement ratio, were quantified and compared between the non-recurrent and recurrent groups (defined as the recurrence of a vascular event within 18 months of stroke). RESULTS Twenty-nine patients were included in the final analysis. No significant differences were found in plaque features in the baseline scan between the non-recurrent (n = 22) and recurrent groups (n = 7). The changes in maximum wall thickness (-13.32% vs. 8.93%, P = 0.026), plaque-wall contrast ratio (-0.82% vs. 3.42%, P = 0.005) and plaque enhancement ratio (-11.03% vs. 9.75%, P = 0.019) were significantly different between the non-recurrent and recurrent groups. Univariable logistic regression showed that the increase in plaque-wall contrast ratio (odds ratio 3.22, 95% confidence interval 1.55-9.98, P = 0.003) was related to stroke recurrence. CONCLUSION Morphological changes of plaque features on magnetic resonance vessel wall imaging demonstrated distinct trends in symptomatic intracranial atherosclerotic disease patients with and without stroke recurrence.
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Affiliation(s)
- Jiayu Xiao
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA
| | - Shlee S Song
- Department of Neurology,
Cedars-Sinai Medical Center, USA
| | | | - Shuang Xia
- Department of Radiology, Tianjin
First Central Hospital, China
| | - Tao Jiang
- Department of Radiology, Beijing
Chaoyang Hospital, China
| | - Tong Han
- Department of Radiology, Tianjin
Huanhu Hospital, China
| | | | - Marcio A Diniz
- Biostatistics and Bioinformatics
Research Center, Cedars-Sinai Medical Center, USA
| | | | - Marcel M Maya
- Department of Imaging, Cedars-Sinai
Medical Center, USA
| | - Patrick D Lyden
- Department of Physiology and
Neuroscience, Zilkha Neurogenetic Institute, University of Southern California,
USA
| | - Debiao Li
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA,Department of Bioengineering,
University of California, Los Angeles, USA
| | - Qi Yang
- Department of Radiology, Beijing
Chaoyang Hospital, China
| | - Zhaoyang Fan
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA,Departments of Radiology and
Radiation Oncology, University of Southern California, USA,Zhaoyang Fan, 2250 Alcazar Street, Room
104, Los Angeles, CA, USA.
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Jourdi G, Lordkipanidzé M, Philippe A, Bachelot-Loza C, Gaussem P. Current and Novel Antiplatelet Therapies for the Treatment of Cardiovascular Diseases. Int J Mol Sci 2021; 22:ijms222313079. [PMID: 34884884 PMCID: PMC8658271 DOI: 10.3390/ijms222313079] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/22/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
Over the last decades, antiplatelet agents, mainly aspirin and P2Y12 receptor antagonists, have significantly reduced morbidity and mortality associated with arterial thrombosis. Their pharmacological characteristics, including pharmacokinetic/pharmacodynamics profiles, have been extensively studied, and a significant number of clinical trials assessing their efficacy and safety in various clinical settings have established antithrombotic efficacy. Notwithstanding, antiplatelet agents carry an inherent risk of bleeding. Given that bleeding is associated with adverse cardiovascular outcomes and mortality, there is an unmet clinical need to develop novel antiplatelet therapies that inhibit thrombosis while maintaining hemostasis. In this review, we present the currently available antiplatelet agents, with a particular focus on their targets, pharmacological characteristics, and patterns of use. We will further discuss the novel antiplatelet therapies in the pipeline, with the goal of improved clinical outcomes among patients with atherothrombotic diseases.
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Affiliation(s)
- Georges Jourdi
- Research Center, Montreal Heart Institute, Montreal, QC H1T 1C8, Canada;
- Faculty of Pharmacy, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Correspondence: (G.J.); (P.G.)
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC H1T 1C8, Canada;
- Faculty of Pharmacy, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Aurélien Philippe
- INSERM, Innovations Thérapeutiques en Hémostase, Université de Paris, F-75006 Paris, France; (A.P.); (C.B.-L.)
- Service d’Hématologie Biologique, AP-HP, Hôpital Européen Georges Pompidou, F-75015 Paris, France
| | - Christilla Bachelot-Loza
- INSERM, Innovations Thérapeutiques en Hémostase, Université de Paris, F-75006 Paris, France; (A.P.); (C.B.-L.)
| | - Pascale Gaussem
- INSERM, Innovations Thérapeutiques en Hémostase, Université de Paris, F-75006 Paris, France; (A.P.); (C.B.-L.)
- Service d’Hématologie Biologique, AP-HP, Hôpital Européen Georges Pompidou, F-75015 Paris, France
- Correspondence: (G.J.); (P.G.)
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7
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Ahuja V, Krishnappa M. Challenges in setting Permitted Daily Exposure (PDE) Limits for pharmaceuticals: A review. INTERNATIONAL JOURNAL OF RISK & SAFETY IN MEDICINE 2021; 33:49-64. [PMID: 34924402 DOI: 10.3233/jrs-210021] [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: 11/15/2022]
Abstract
BACKGROUND When more than one drug is manufactured at a shared facility or equipment in pharmaceutical manufacturing, the potential carry-over of the retained residue of existing drug product on product contact parts of the equipment to the next product can be a source of cross contamination. Permitted daily exposure (PDE) is derived based on the complete nonclinical and clinical data available and is a dose that is unlikely to cause adverse effects if an individual is exposed, by any route, at or below this dose every day over a lifetime. OBJECTIVE The objective was to present a comprehensive review of available scientific knowledge for derivation of PDE. METHODS PubMed and ScienceDirect databases were searched using keywords "PDE" and "pharmaceuticals" and all the relevant literature up to March 2021 was reviewed. We have also calculated PDEs for Tobramycin (CAS No. 32986-56-4) and Acetyl Salicylic Acid (ASA, CAS No. 50-78-2). RESULTS This research will be useful for scientists working in the PDE domain. The given examples emphasize the importance of use of human data in calculating PDE. CONCLUSION The duty of the risk assessor entrusted with setting PDEs is to derive a data driven, scientifically justified value that is safe for patients, while avoiding unjustified conservativeness that puts unnecessary burden on manufacturing.
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Affiliation(s)
- Varun Ahuja
- Safety Assessment, Syngene International Limited, Biocon Park, Bangalore, India
| | - Mohan Krishnappa
- Safety Assessment, Syngene International Limited, Biocon Park, Bangalore, India
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8
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Ahuja V, Krishnappa M. Approaches for setting occupational exposure limits in the pharmaceutical industry. J Appl Toxicol 2021; 42:154-167. [PMID: 34254327 DOI: 10.1002/jat.4218] [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: 03/12/2021] [Revised: 06/26/2021] [Accepted: 06/26/2021] [Indexed: 11/09/2022]
Abstract
The use of pharmaceutical drugs has provided a cure for many diseases. However, unintended exposure to drugs in the manufacturing workplace can cause significant health hazards to workers. It is important to protect the workforce from these deleterious effects by limiting exposure to an acceptable level, the occupational exposure limit (OEL). OEL is defined as airborne concentrations (expressed as a time-weighted average for a conventional 8-h workday and a 40-h work week) of a substance to which nearly all workers may be repeatedly exposed (for a working lifetime) without adverse effects. Determination of OELs has become very challenging over time, requiring an overall assessment of the preclinical and clinical data of the drug being manufactured. Previously, to derive OEL values, toxicologists used animal no-observed-adverse-effect level (NOAEL) data, which have been replaced with the overall assessment of animal and human data, placing a higher emphasis on human health-based data. A major advantage of working with human pharmaceuticals is that sufficient clinical data are available for them in most cases. The present manuscript reviews the latest knowledge regarding the derivation of occupational exposure limits as health-based exposure limits (HBELs) for pharmaceuticals. We have provided examples of OEL calculations for various drugs including levofloxacin (CAS No. 100986-85-4), dienogest (CAS no. 65928-58-7), and acetylsalicylic acid (ASA, CAS no. 50-78-2) using human data. This report will benefit professionals in the OEL domain in understanding this highly important, growing, and challenging field.
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Affiliation(s)
- Varun Ahuja
- Safety Assessment Department, Syngene International Limited, Bangalore, India
| | - Mohan Krishnappa
- Safety Assessment Department, Syngene International Limited, Bangalore, India
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9
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Poredos P, Antignani PL, Blinc A, Fras Z, Jezovnik MK, Fareed J, Mansilha A. Do we have a unified consensus on antithrombotic management of PAD? INT ANGIOL 2021; 40:229-239. [PMID: 33739074 DOI: 10.23736/s0392-9590.21.04597-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Peripheral artery disease (PAD) is one of the most frequent manifestations of atherosclerosis with high rates of morbidity and mortality. Platelets and coagulation are involved in the progression of atherosclerosis and thromboembolic complications. PAD patients have increased prothrombotic potential, which includes platelet hyperaggregability and increased pro-coagulant state. Therefore, antithrombotic treatment is of utmost importance for the prevention of cardiovascular events in this group of patients. Aspirin is the basic antiplatelet drug, but with limited efficacy in PAD. In contrast to coronary artery disease, its effect on the prevention of cardiovascular events in PAD has been limited proven. Particularly in asymptomatic PAD, there is no evidence for risk reduction with aspirin. Clopidogrel and ticagrelor are more effective than aspirin. Clopidogrel is thus an effective alternative to aspirin for prevention of cardiovascular events in symptomatic PAD. In patients who are non-responders to clopidogrel, ticagrelor is indicated. Dual antiplatelet treatment (DAPT) with aspirin and ticagrelor in patients with coronary artery disease and concomitant PAD significantly decreased the rate of major adverse cardiovascular events, including adverse limb events. However, in the CHARISMA Trial, aspirin and clopidogrel were not more effective than aspirin alone and increased bleeding complications. Therefore, DAPT seems effective only in PAD accompanied by coronary artery disease. Anticoagulant treatment for symptomatic PAD with vitamin K antagonists alone or in combination with aspirin is not more effective than single antiplatelet treatment but increases the rate of major bleeding. Low dose rivaroxaban combined with aspirin in PAD patients significantly reduces cardiovascular events, including limb-threatening ischemia and limb amputations. Anticoagulation and antiplatelet treatment after percutaneous or surgical revascularization of PAD improve the patency of treated vessels. Aspirin with or without dipyridamole improved patency of infra-inguinal by-pass grafts at one year. The combination of clopidogrel with aspirin was more effective than aspirin alone in the prevention of prosthetic graft occlusions in patients undergoing below-knee by-pass-grafting. Oral vitamin K antagonists were not more effective than aspirin in the prevention of infra-inguinal by-pass occlusion. The combination of low dose rivaroxaban and aspirin was effective in preventing major adverse cardiovascular events and adverse limb events after infrainguinal endovascular or surgical revascularization in patients with intermittent claudication. However, the data on antithrombotic treatment after revascularization for limb-threatening ischemia is scanty and inconclusive. In conclusion: Antithrombotic treatment of PAD is a cornerstone for the management of these patients. Antiplatelet drugs prevent the initiation and progression of atherosclerosis and are effective also in the prevention of thromboembolic events. Simultaneous use of antiplatelet and anticoagulation drugs is accompanied by an increased risk of bleeding. However, combined treatment with aspirin and low-dose rivaroxaban is more effective than single antithrombotic treatment and safer than full-dose combined treatment.
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Affiliation(s)
- Pavel Poredos
- Department of Vascular Disease, University Medical Center Ljubljana, Ljubljana, Slovenia
| | | | - Ales Blinc
- Department of Vascular Disease, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Zlatko Fras
- Department of Vascular Disease, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Mateja K Jezovnik
- Department of Advanced Cardiopulmonary Therapies and Transplantation, Health Science Center, University of Texas, Houston, TX, USA
| | - Jawed Fareed
- Loyola University Medical Center, Maywood, IL, USA
| | - Armando Mansilha
- Department of Angiology and Vascular Surgery, Hospital CUF Porto, Porto, Portugal
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10
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Khan H, Gallant RC, Zamzam A, Jain S, Afxentiou S, Syed M, Kroezen Z, Shanmuganathan M, Britz-McKibbin P, Rand ML, Ni H, Al-Omran M, Qadura M. Personalization of Aspirin Therapy Ex Vivo in Patients with Atherosclerosis Using Light Transmission Aggregometry. Diagnostics (Basel) 2020; 10:diagnostics10110871. [PMID: 33114560 PMCID: PMC7693608 DOI: 10.3390/diagnostics10110871] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/23/2022] Open
Abstract
Acetylsalicylic acid (ASA), also known as aspirin, appears to be ineffective in inhibiting platelet aggregation in 20-30% of patients. Light transmission aggregometry (LTA) is a gold standard platelet function assay. In this pilot study, we used LTA to personalize ASA therapy ex vivo in atherosclerotic patients. Patients were recruited who were on 81 mg ASA, presenting to ambulatory clinics at St. Michael's Hospital (n = 64), with evidence of atherosclerotic disease defined as clinical symptoms and diagnostic findings indicative of symptomatic peripheral arterial disease (PAD), with an ankle brachial index (ABI) of <0.9 (n = 52) or had diagnostic features of asymptomatic carotid arterial stenosis (CAS), with >50% stenosis of internal carotid artery on duplex ultrasound (n = 12). ASA compliance was assessed via multisegmented injection-capillary electrophoresis-mass spectrometry based on measuring the predominant urinary ASA metabolite, salicyluric acid. LTA with arachidonic acid was used to test for ASA sensitivity. Escalating ASA dosages of 162 mg and 325 mg were investigated ex vivo for ASA dose personalization. Of the 64 atherosclerotic patients recruited, 8 patients (13%) were non-compliant with ASA. Of ASA compliant patients (n = 56), 9 patients (14%) were non-sensitive to their 81 mg ASA dosage. Personalizing ASA therapy in 81 mg ASA non-sensitive patients with escalating dosages of ASA demonstrated that 6 patients became sensitive to a dosage equivalent to 162 mg ASA and 3 patients became sensitive to a dosage equivalent to 325 mg ASA. We were able to personalize ASA dosage ex vivo in all ASA non-sensitive patients with escalating dosages of ASA within 1 h of testing.
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Affiliation(s)
- Hamzah Khan
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Reid C. Gallant
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
| | - Abdelrahman Zamzam
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Shubha Jain
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Sherri Afxentiou
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Muzammil Syed
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Zachary Kroezen
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Meera Shanmuganathan
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Philip Britz-McKibbin
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Margaret L. Rand
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON M4B 1B3, Canada;
- Departments of Biochemistry and Pediatrics, University of Toronto, Toronto, ON M4B 1B3, Canada
- Translational Medicine, Research Institute, Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON M4B 1B3, Canada
| | - Heyu Ni
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON M4B 1B3, Canada;
| | - Mohammed Al-Omran
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Surgery, University of Toronto, Toronto, ON M4B 1B3, Canada
| | - Mohammad Qadura
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Surgery, University of Toronto, Toronto, ON M4B 1B3, Canada
- Correspondence: ; Tel.: +1-416-864-6047
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11
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Li Z, Wang Z, Shen B, Chen C, Ding X, Song H. Effects of aspirin on the gastrointestinal tract: Pros vs. cons. Oncol Lett 2020; 20:2567-2578. [PMID: 32782574 PMCID: PMC7400979 DOI: 10.3892/ol.2020.11817] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
Acetylsalicylic acid, also known as aspirin, is often used in clinical antipyretic, analgesic and antiplatelet therapy. Aspirin can cause numerous side effects in the gastrointestinal (GI) tract, ranging from unpleasant GI symptoms without gastric mucosal lesions to ulcer bleeding and even death. However, recent studies have found that aspirin can significantly prevent GI tumors. Despite impressive advances in cancer research, screening and treatment options, GI tumors remain a leading cause of death worldwide. Prevention is a far better option than treatment for tumors. Therefore, the present review assesses the pros and cons of aspirin on the GI tract and, on this the basis, the appropriate dose of aspirin to protect it.
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Affiliation(s)
- Zhuoya Li
- Department of Internal Medicine, The Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
| | - Zheng Wang
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
- Department of Internal Medicine, The Medical School of Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Baile Shen
- Department of Internal Medicine, The Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
| | - Chen Chen
- Department of Internal Medicine, The Medical School of Ningbo University, Ningbo, Zhejiang 315000, P.R. China
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
| | - Xiaoyun Ding
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
| | - Haojun Song
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
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12
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Aspirin antiplatelet effects are associated with body weight. Vascul Pharmacol 2019; 125-126:106635. [PMID: 31862488 DOI: 10.1016/j.vph.2019.106635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 12/01/2019] [Accepted: 12/17/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Aspirin is indispensable in secondary prevention of ischemic events. Recently, it was reported that clinical aspirin effects are hampered in patients above 70 kg body weight. It is well known that a plethora of reasons beside obesity is associated with increased platelet reactivity and insufficient aspirin effects (HTPR). However, data regarding an association between pharmacodynamic response to aspirin and body weight are missing. METHODS In this pilot study, we included 59 patients from University Hospital Duesseldorf. Impedance aggregometry was used to assess pharmacodynamic response to aspirin. RESULTS AA-induced platelet reactivity was significantly higher in patients above 70 kg (<70 kg: 28.27 ± 26.33 vs. >70 kg: 45.93 ± 27.1, p = .035) and correlated well with the bodyweight of patients in this study (r = 0.33, R2 = 0.09, p = .016). According to this, insufficient pharmacodynamic response (HTPR) to aspirin was significantly more frequent in patients over 70 kg (<70 kg: 25% vs. >70 kg: 43%, p = .035). CONCLUSION Insufficient pharmacodynamic response to aspirin is associated with body weight. This finding may play a role in the impaired clinical efficacy of aspirin in patients >70 kg. An optimal aspirin regime in these patients needs to be evaluated in large scale trials.
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13
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Furtado RHM, Giugliano RP, Dalcoquio TF, Arantes FBB, Barbosa CJDG, Genestreti PRR, Franci A, Menezes FR, Nakashima CAK, Scanavini Filho MA, Ferrari AG, Salsoso R, Baracioli LM, Nicolau JC. Increased bodyweight and inadequate response to aspirin in individuals with coronary artery disease. J Thromb Thrombolysis 2019; 48:217-224. [PMID: 30879169 DOI: 10.1007/s11239-019-01830-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent reports have suggested that aspirin effect might be influenced by bodyweight, with decreased efficacy in heavier individuals. We investigated the influence of bodyweight on aspirin pharmacodynamics in two independent datasets of patients taking non-enteric coated aspirin 100 mg QD for coronary artery disease (CAD). In the first dataset, 368 patients had their platelet aggregation assessed using VerifyNow Aspirin and measured in Aspirin Reaction Units (ARU). In the second dataset, 70 patients had serum thromboxane B2 (TXB2) dosage assessed by an ELISA assay and measured in pg/mL. Platelet aggregation was independently associated with bodyweight, with 8.41 (95% CI 1.86-14.97; adjusted p-value = 0.012) increase in ARU for every 10 kg. Furthermore, the rate of non-response to aspirin (defined as ARU ≥ 550) was significantly associated with increased bodyweight (adjusted p-value = 0.007), with OR = 1.23 (95% CI 1.06-1.42) for every 10 kg. Similar results were found considering body mass index (in kg/m2), with 15.5 (95% CI 5.0 to 25.9; adjusted p-value = 0.004) increase in ARU for every 10 kg and non-response OR = 1.43 (95% CI 1.13 to 1.81, adjusted p-value = 0.003) for every 5 kg/m2. Moreover, serum TXB2 was higher in patients weighting more than 70 kg (222.6 ± 62.9 versus 194.9 ± 61.9 pg/mL; adjusted p-value = 0.018). In two different datasets of patients with CAD on non-enteric coated aspirin 100 mg QD, increased bodyweight was independently associated with impaired response to aspirin.
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Affiliation(s)
- Remo H M Furtado
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil.,TIMI Study Group - Brigham and Women's Hospital, Boston, MA, USA
| | | | - Talia F Dalcoquio
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Flavia B B Arantes
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil.,Universidade Federal de Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Carlos J D G Barbosa
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil.,Hospital do Coracao do Brasil, Brasília, Distrito Federal, Brazil
| | - Paulo R R Genestreti
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - André Franci
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Fernando R Menezes
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Carlos A K Nakashima
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Marco A Scanavini Filho
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Aline G Ferrari
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Rocio Salsoso
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Luciano M Baracioli
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil
| | - Jose C Nicolau
- Instituto do Coracao (InCor), Unidade de Coronariopatia Aguda, Hospital das Clinicas, Faculdade de Medicina (HCFMUSP), Universidade de Sao Paulo, São Paulo, Brazil.
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14
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Racca C, van Diemen JJK, Fuijkschot WW, Spit K, Bonten TN, Numans ME, van der Bom JG, Smulders YM, Thijs A. Aspirin intake in the morning is associated with suboptimal platelet inhibition, as measured by serum Thromboxane B2, during infarct-prone early-morning hours. Platelets 2018; 30:871-877. [DOI: 10.1080/09537104.2018.1528347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cati Racca
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | | | - Wessel Willem Fuijkschot
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Karlinde Spit
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Tobias Nicolaas Bonten
- Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mattijs Everard Numans
- Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | - Johanna Gerarda van der Bom
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
- JJ van Rood Center for Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands
| | - Yvo Michiel Smulders
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Abel Thijs
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
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15
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Haines JM, Lee PM, Hegedus RM, Hwang JK, Court MH. Investigation into the causes of aspirin resistance in healthy dogs. J Vet Pharmacol Ther 2018; 42:160-170. [PMID: 30302763 DOI: 10.1111/jvp.12725] [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: 03/06/2018] [Revised: 09/13/2018] [Accepted: 09/13/2018] [Indexed: 11/29/2022]
Abstract
Antiplatelet effects of acetylsalicylic acid (ASA, aspirin) may be poor in some individuals. Additionally, no method exists for predicting poor ASA response (resistance) in individual dogs. This study's main objective was to determine whether poor ASA response results from pharmacodynamic or pharmacokinetic causes. ASA concentrations causing 50% inhibition of platelet aggregation (in vitro IC50) were determined using whole blood collected from 21 drug-free healthy dogs to evaluate intrinsic sensitivity of platelets to ASA. Dogs were then administered ASA at 4 mg/kg once orally. Percent decrease in platelet aggregation from baseline, and plasma ASA and salicylic acid (SA) concentrations (expressed as AUC values) were measured for up to 3 hr. By 3 hr, 13/21 (62%) dogs showed >50% aggregation inhibition, while 8/21 (38%) dogs showed <50% inhibition. Aggregation inhibition values were negatively correlated with in vitro IC50 values (Rs = -0.49; p = 0.028) and positively correlated with ASA concentrations (Rs = 0.48; p = 0.03). Furthermore, ASA concentrations were strongly negatively correlated (Rs = -0.88; p < 0.001) with SA/ASA concentration ratios, an index of ASA metabolism to SA by esterase enzymes. Multiple linear regression analysis indicated that 59% (p < 0.001) of interindividual variability in aggregation inhibition was explained by in vitro IC50 values (29% of variability) and ASA concentrations (29% of variability). Consequently, poor in vivo ASA response in these dogs resulted from both pharmacodynamic (decreased platelet sensitivity) and pharmacokinetic (lower ASA concentrations) causes. Lower ASA concentrations may be explained by reduced bioavailability associated with higher esterase activities.
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Affiliation(s)
- Jillian M Haines
- Program in Individualized Medicine (PrIMe), Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Pamela M Lee
- Program in Individualized Medicine (PrIMe), Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Rachel M Hegedus
- Program in Individualized Medicine (PrIMe), Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Julianne K Hwang
- Program in Individualized Medicine (PrIMe), Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Michael H Court
- Program in Individualized Medicine (PrIMe), Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
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16
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Ing Lorenzini K, Lloret-Linares C, Desmeules J, Samer C. Absorption des médicaments lors de syndrome du grêle court. NUTR CLIN METAB 2018. [DOI: 10.1016/j.nupar.2018.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Krasinska B, Osińska A, Osinski M, Krasinska A, Rzymski P, Tykarski A, Krasiński Z. Standardised tomato extract as an alternative to acetylsalicylic acid in patients with primary hypertension and high cardiovascular risk - a randomised, controlled trial. Arch Med Sci 2018; 14:773-780. [PMID: 30002694 PMCID: PMC6040123 DOI: 10.5114/aoms.2017.69864] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 08/16/2017] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Cardiovascular (CV) diseases remain a leading global cause of death. It has been proven that the use of acetylsalicylic acid (ASA) in secondary prevention reduces the CV risk, while the benefits of ASA in primary prevention have recently been debated. The aim of the study was to compare the antiplatelet effect of standardised tomato extract (STE) and ASA in hypertensive patients with high CV risk. MATERIAL AND METHODS The study involved high-risk patients with arterial hypertension (AH) randomly assigned to one of two groups: group 1 included 33 patients receiving ASA and group 2 included 32 patients receiving STE. The platelet aggregation was determined using the VerifyNow analyser. RESULTS After 4 weeks of ASA treatment in group 1, a statistically significant reduction in aspirin reaction units (ARU) was observed (p < 0.001). However, the obese subgroup using ASA (n = 18) did not reveal a significant decrease in ARU (p > 0.05). After 4 weeks of STE treatment in the obese subgroup (n = 14), significant declines in ARU by 8.6% (95% CI: -19.5 to -1.7%; p < 0.05) and in P2Y12 reaction units (PRU) by 7.5% (95% CI: -17.6 to 1.8%; p < 0.05) were observed. CONCLUSIONS The antiplatelet effect of STE in hypertensive patients may be weight dependent. The group with AH and obesity might have potentially benefitted from STE treatment.
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Affiliation(s)
- Beata Krasinska
- Department of Hypertension, Angiology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Angelika Osińska
- Department of Hypertension, Angiology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Maciej Osinski
- Department of Obstetrics, Gynaecology and Gynaecological Oncology, Division of Reproduction, Poznan University of Medical Sciences, Poznan Poland
| | - Aleksandra Krasinska
- Student Medical Faculty 1, Poznan University of Medical Sciences, Poznan, Poland
| | - Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Andrzej Tykarski
- Department of Hypertension, Angiology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Zbigniew Krasiński
- Department of General and Vascular Surgery, Poznan University of Medical Sciences, Poznan, Poland
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18
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Tacconelli S, Dovizio M, Di Francesco L, Meneguzzi A, D'Agostino I, Evangelista V, Manarini S, Capone ML, Grossi L, Porreca E, Di Febbo C, Bruno A, Ballerini P, Levantesi G, Fava C, Minuz P, Patrignani P. Reduced Variability to Aspirin Antiplatelet Effect by the Coadministration of Statins in High-Risk Patients for Cardiovascular Disease. Clin Pharmacol Ther 2018; 104:111-119. [PMID: 29574792 DOI: 10.1002/cpt.1075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/27/2018] [Accepted: 03/14/2018] [Indexed: 11/07/2022]
Abstract
We studied the influence of cardiovascular (CV) risk factors, previous CV events, and cotreatments with preventive medicines, on residual platelet thromboxane (TX)B2 production in 182 patients chronically treated with enteric coated (EC)-aspirin (100 mg/day). The response to aspirin was also verified by assessing arachidonic acid-induced platelet aggregation and urinary 11-dehydro-TXB2 levels. Residual serum TXB2 levels exceeded the upper limit value for an adequate aspirin response in 14% of individuals. This phenomenon was detected at 12 hours after dosing with aspirin. The coadministration of statins (mostly atorvastatin) was an independent predictor of residual serum TXB2 levels, and the percentage of patients with enhanced values was significantly lower in statin users vs. nonusers. We provide evidence in vitro that atorvastatin reduced residual TXB2 generation by increasing the extent of acetylation of platelet COX-1 by aspirin. In conclusion, the coadministration of statins may counter the mechanisms associated with reduced bioavailability of aspirin detected in some individuals with CV disease.
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Affiliation(s)
- Stefania Tacconelli
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Melania Dovizio
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Luigia Di Francesco
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Alessandra Meneguzzi
- Department of Medicine, University of Verona and Policlinico "G.B. Rossi", Verona, Italy
| | - Ilaria D'Agostino
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | | | | | | | - Linda Grossi
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Ettore Porreca
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Chieti, Italy
- SS. Annunziata Hospital, Chieti, Italy
| | | | - Annalisa Bruno
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Patrizia Ballerini
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
- Dipartimento di Scienze Psicologiche, della Salute e del Territori, "G. d'Annunzio" University, Chieti, Italy
| | | | - Cristiano Fava
- Department of Medicine, University of Verona and Policlinico "G.B. Rossi", Verona, Italy
| | - Pietro Minuz
- Department of Medicine, University of Verona and Policlinico "G.B. Rossi", Verona, Italy
| | - Paola Patrignani
- Department of Neuroscience, Imaging and Clinical Sciences
- CeSI-MeT, "G. d'Annunzio" University, Chieti, Italy
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Jull A, Wadham A, Bullen C, Parag V, Kerse N, Waters J. Low dose aspirin as adjuvant treatment for venous leg ulceration: pragmatic, randomised, double blind, placebo controlled trial (Aspirin4VLU). BMJ 2017; 359:j5157. [PMID: 29175902 PMCID: PMC5701114 DOI: 10.1136/bmj.j5157] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Objective To determine the effect of low dose aspirin on ulcer healing in patients with venous leg ulcers.Design Pragmatic, community based, parallel group, double blind, randomised controlled trial.Setting Five community nursing centres in New Zealand.Participants 251 adults with venous leg ulcers who could safely be treated with aspirin or placebo: 125 were randomised to aspirin and 126 to placebo.Interventions 150 mg oral aspirin daily or matching placebo for up to 24 weeks treatment, with compression therapy as standard background treatment.Main outcome measures The primary outcome was time to complete healing of the reference ulcer (largest ulcer if more than one ulcer was present). Secondary outcomes included proportion of participants healed, change in ulcer area, change in health related quality of life, and adverse events. Analysis was by intention to treat.Results The median number of days to healing of the reference ulcer was 77 in the aspirin group and 69 in the placebo group (hazard ratio 0.85, 95% confidence interval 0.64 to 1.13, P=0.25). The number of participants healed at the endpoint was 88 (70%) in the aspirin group and 101 (80%) in the placebo group (risk difference -9.8%, 95% confidence interval -20.4% to 0.9%, P=0.07). Estimated change in ulcer area was 4.1 cm2 in the aspirin group and 4.8 cm2 in the placebo group (mean difference -0.7 cm2, 95% confidence interval -1.9 to 0.5 cm2, P=0.25). 40 adverse events occurred among 29 participants in the aspirin group and 37 adverse events among 27 participants in the placebo group (incidence rate ratio 1.1, 95% confidence interval 0.7 to 1.7, P=0.71).Conclusion Our findings do not support the use of low dose aspirin as adjuvant treatment for venous leg ulcers.Trial registration ClinicalTrials.gov NCT02158806.
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Affiliation(s)
- Andrew Jull
- School of Nursing, University of Auckland, Auckland, New Zealand
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
| | - Angela Wadham
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
| | - Chris Bullen
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
| | - Varsha Parag
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
| | - Ngaire Kerse
- School of Population Health, University of Auckland, Auckland, New Zealand
| | - Jill Waters
- Adult Long Term Conditions and Community Services, Auckland District Health Board, Auckland, New Zealand
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20
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Saris A, van Oostrom M, Snoep J, Rosendaal F, Zwaginga J, Eikenboom J, van der Meer P, van der Bom J, Bonten T. Effect of aspirin intake at bedtime versus on awakening on circadian rhythm of platelet reactivity. Thromb Haemost 2017; 112:1209-18. [DOI: 10.1160/th14-05-0453] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 07/10/2014] [Indexed: 02/02/2023]
Abstract
SummaryThe risk of acute cardiovascular events is highest during morning hours, and platelet activity peaks during morning hours. The effect of timing of aspirin intake on circadian rhythm and morning peak of platelet reactivity is not known. It was our objective to evaluate the effect of timing of aspirin intake on circadian rhythm and morning peak of platelet reactivity. A randomised open-label cross-over trial in healthy subjects (n=14) was conducted. Participants used acetylsalicylic acid (80 mg) on awakening or at bedtime for two periods of two weeks, separated by a four-week wash-out period. At the end of both periods blood was drawn every 3 hours to measure COX-1-dependent (VerifyNow- Aspirin; Serum Thromboxane B2 [STxB2]) and COX-1-independent (flow cytometry surface CD62p expression; microaggregation) platelet activity. VerifyNow platelet reactivity over the whole day was similar with intake on awakening and at bedtime (mean difference: –9 [95 % confidence interval (CI) –21 to 4]). However, the morning increase in COX-1-dependent platelet activity was reduced by intake of aspirin at bedtime compared with on awakening (mean difference VerifyNow: –23 Aspirin Reaction Units [CI –50 to 4]; STxB2: –1.7 ng/ml [CI –2.7 to –0.8]). COX-1-independent assays were not affected by aspirin intake or its timing. Low-dose aspirin taken at bedtime compared with intake on awakening reduces COX-1-dependent platelet reactivity during morning hours in healthy subjects. Future clinical trials are required to investigate whether simply switching to aspirin intake at bedtime reduces the risk of cardiovascular events during the high risk morning hours.
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22
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Thrombosis in diabetes: a shear flow effect? Clin Sci (Lond) 2017; 131:1245-1260. [PMID: 28592700 DOI: 10.1042/cs20160391] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 02/14/2017] [Accepted: 02/27/2017] [Indexed: 12/16/2022]
Abstract
Cardiovascular events are the major cause of morbidity and mortality in Type 2 diabetes (T2D). This condition is associated with heightened platelet reactivity, contributing to increased atherothrombotic risk. Indeed, individuals with diabetes respond inadequately to standard antiplatelet therapy. Furthermore, they often experience recurrent events as well as side effects that include excess bleeding. This highlights the need for identification of novel regulators of diabetes-associated thrombosis to target for therapeutic intervention. It is well established that platelet aggregation, a process essential for thrombus formation, is tightly regulated by shear stress; however, the mechanisms underlying shear activation of platelets, particularly in the setting of diabetes, are still poorly understood. This review will address the limitations of current diagnostic systems to assess the importance of shear stress in the regulation of thrombus formation in T2D, and the inability to recapitulate the pro-thrombotic phenotype seen clinically in the setting of T2D. Moreover, we will discuss recent findings utilizing new technologies to define the importance of shear stress in thrombus formation and their potential application to the setting of diabetes. Finally, we will discuss the potential of targeting shear-dependent mechanisms of thrombus formation as a novel therapeutic approach in the setting of T2D.
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Aspirin, stroke and drug-drug interactions. Vascul Pharmacol 2016; 87:14-22. [DOI: 10.1016/j.vph.2016.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/06/2016] [Accepted: 10/14/2016] [Indexed: 12/29/2022]
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Bem D, Lordkipanidzé M, Hodgkinson J, Stevens S, Bayliss S, Moore D, Fitzmaurice D, Dretzke J. The Effects of Different Aspirin Dosing Frequencies and the Timing of Aspirin Intake in Primary and Secondary Prevention of Cardiovascular Disease: A Systematic Review. Clin Pharmacol Ther 2016; 100:500-512. [DOI: 10.1002/cpt.438] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/23/2016] [Accepted: 07/15/2016] [Indexed: 12/19/2022]
Affiliation(s)
- D Bem
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - M Lordkipanidzé
- Montreal Heart Institute; Research Centre; Montréal QC Canada
- Université de Montreal, Faculté de pharmacie; Montreal QC Canada
| | - J Hodgkinson
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - S Stevens
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - S Bayliss
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - D Moore
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - D Fitzmaurice
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - J Dretzke
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
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Han YL. Aspirin resistance in coronary heart disease: Current understandings and strategies. J Transl Int Med 2016; 4:7-10. [PMID: 28191510 DOI: 10.1515/jtim-2016-0002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Ya-Ling Han
- Department of Cardiology, General Hospital of Shenyang Military Command, Shenyang 110016, Liaoning Province, China
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Dretzke J, Riley RD, Lordkipanidzé M, Jowett S, O'Donnell J, Ensor J, Moloney E, Price M, Raichand S, Hodgkinson J, Bayliss S, Fitzmaurice D, Moore D. The prognostic utility of tests of platelet function for the detection of 'aspirin resistance' in patients with established cardiovascular or cerebrovascular disease: a systematic review and economic evaluation. Health Technol Assess 2016; 19:1-366. [PMID: 25984731 DOI: 10.3310/hta19370] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The use of aspirin is well established for secondary prevention of cardiovascular disease. However, a proportion of patients suffer repeat cardiovascular events despite being prescribed aspirin treatment. It is uncertain whether or not this is due to an inherent inability of aspirin to sufficiently modify platelet activity. This report aims to investigate whether or not insufficient platelet function inhibition by aspirin ('aspirin resistance'), as defined using platelet function tests (PFTs), is linked to the occurrence of adverse clinical outcomes, and further, whether or not patients at risk of future adverse clinical events can be identified through PFTs. OBJECTIVES To review systematically the clinical effectiveness and cost-effectiveness evidence regarding the association between PFT designation of 'aspirin resistance' and the risk of adverse clinical outcome(s) in patients prescribed aspirin therapy. To undertake exploratory model-based cost-effectiveness analysis on the use of PFTs. DATA SOURCES Bibliographic databases (e.g. MEDLINE from inception and EMBASE from 1980), conference proceedings and ongoing trial registries up to April 2012. METHODS Standard systematic review methods were used for identifying clinical and cost studies. A risk-of-bias assessment tool was adapted from checklists for prognostic and diagnostic studies. (Un)adjusted odds and hazard ratios for the association between 'aspirin resistance', for different PFTs, and clinical outcomes are presented; however, heterogeneity between studies precluded pooling of results. A speculative economic model of a PFT and change of therapy strategy was developed. RESULTS One hundred and eight relevant studies using a variety of PFTs, 58 in patients on aspirin monotherapy, were analysed in detail. Results indicated that some PFTs may have some prognostic utility, i.e. a trend for more clinical events to be associated with groups classified as 'aspirin resistant'. Methodological and clinical heterogeneity prevented a quantitative summary of prognostic effect. Study-level effect sizes were generally small and absolute outcome risk was not substantially different between 'aspirin resistant' and 'aspirin sensitive' designations. No studies on the cost-effectiveness of PFTs for 'aspirin resistance' were identified. Based on assumptions of PFTs being able to accurately identify patients at high risk of clinical events and such patients benefiting from treatment modification, the economic model found that a test-treat strategy was likely to be cost-effective. However, neither assumption is currently evidence based. LIMITATIONS Poor or incomplete reporting of studies suggests a potentially large volume of inaccessible data. Analyses were confined to studies on patients prescribed aspirin as sole antiplatelet therapy at the time of PFT. Clinical and methodological heterogeneity across studies precluded meta-analysis. Given the lack of robust data the economic modelling was speculative. CONCLUSIONS Although evidence indicates that some PFTs may have some prognostic value, methodological and clinical heterogeneity between studies and different approaches to analyses create confusion and inconsistency in prognostic results, and prevented a quantitative summary of their prognostic effect. Protocol-driven and adequately powered primary studies are needed, using standardised methods of measurements to evaluate the prognostic ability of each test in the same population(s), and ideally presenting individual patient data. For any PFT to inform individual risk prediction, it will likely need to be considered in combination with other prognostic factors, within a prognostic model. STUDY REGISTRATION This study is registered as PROSPERO 2012:CRD42012002151. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Janine Dretzke
- Public Health, Epidemiology and Biostatistics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - Richard D Riley
- Research Institute of Primary Care and Health Sciences, Keele University, Staffordshire, UK
| | | | - Susan Jowett
- Health Economics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - Jennifer O'Donnell
- Primary Care Clinical Sciences, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - Joie Ensor
- Research Institute of Primary Care and Health Sciences, Keele University, Staffordshire, UK
| | - Eoin Moloney
- Institute of Health and Society, Newcastle University, Newcastle, UK
| | - Malcolm Price
- Public Health, Epidemiology and Biostatistics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - Smriti Raichand
- Public Health, Epidemiology and Biostatistics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - James Hodgkinson
- Primary Care Clinical Sciences, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - Susan Bayliss
- Public Health, Epidemiology and Biostatistics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - David Fitzmaurice
- Primary Care Clinical Sciences, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
| | - David Moore
- Public Health, Epidemiology and Biostatistics, School of Health and Population Sciences, University of Birmingham, Birmingham, UK
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Jull A, Wadham A, Bullen C, Parag V, Kerse N, Waters J. Low-dose aspirin as an adjuvant treatment for venous leg ulceration: study protocol for a randomized controlled trial (Aspirin4VLU). J Adv Nurs 2015; 72:669-79. [PMID: 26708314 DOI: 10.1111/jan.12864] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2015] [Indexed: 01/22/2023]
Abstract
AIM The aim of this study was to determine the effect of low-dose aspirin on venous leg ulcer healing when used in addition to compression. BACKGROUND The mainstay of treatment for venous leg ulcers is compression therapy and there are few adjuvant treatments to accelerate healing. DESIGN Pragmatic, community-based, double-blind, randomized trial. METHODS Participants with venous leg ulcers will receive either 150 mg aspirin or placebo daily for up to 24 weeks. Participants will receive background treatment with compression therapy (system of choice guided by participant and/or clinical preference) delivered through district nursing services. The primary outcome will be time-to-healing. Secondary outcomes will include proportion healed at 24 weeks, change in ulcer area, change in health-related quality of life, adherence, efficacy of blinding and adverse events. The trial was funded in June 2014. DISCUSSION The trial commenced in March 2015 and is successfully recruiting. The trial is one of three trials that will contribute to an individual participant data meta-analysis to be undertaken at the York Trials Centre. TRIAL REGISTRATION Registered 5 June 2014 ClinicalTrials.gov NCT02158806. Protocol version 1·1, 14 April 2015.
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Affiliation(s)
- Andrew Jull
- School of Nursing, University of Auckland, New Zealand.,National Institute for Health Innovation, University of Auckland, New Zealand
| | - Angela Wadham
- National Institute for Health Innovation, University of Auckland, New Zealand
| | - Chris Bullen
- National Institute for Health Innovation, University of Auckland, New Zealand
| | - Varsha Parag
- National Institute for Health Innovation, University of Auckland, New Zealand
| | - Ngaire Kerse
- School of Population Health, University of Auckland, New Zealand
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Rowcliffe M, Nezami B, Westphal ES, Rainka M, Janda M, Bates V, Gengo F. Topical diclofenac does not affect the antiplatelet properties of aspirin as compared to the intermediate effects of oral diclofenac: A prospective, randomized, complete crossover study. J Clin Pharmacol 2015; 56:422-8. [PMID: 26265197 DOI: 10.1002/jcph.615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 08/06/2015] [Indexed: 11/07/2022]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) adversely interact with aspirin, diminishing its antiplatelet effect and potentially placing patients at an increased risk for recurrent thrombotic events. This crossover study aimed to determine whether the topical NSAID diclofenac epolamine 1.3% patch or oral diclofenac 50 mg interfered with the antiplatelet effects of aspirin 325 mg. Twelve healthy men and women aged 18-50 were included. Participants were randomized into 5 treatment arms: aspirin, diclofenac potassium 50 mg, diclofenac patch, diclofenac potassium plus ASA 325 mg, and diclofenac patch plus aspirin. Platelet responsiveness was determined using whole-blood impedance aggregation (WBA) to collagen 1 μg/mL and arachidonic acid (AA) 0.5 mM and was sampled every 2 hours. No significant difference in platelet function was observed following the diclofenac patch and aspirin vs aspirin alone. Oral diclofenac produced a mixed effect with significant reduction in platelet inhibition at hour 2 and hour 8 following aspirin administration. Topical diclofenac does not significantly interfere with the antiplatelet effects of aspirin and may be a safer alternative to the oral formulation.
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Affiliation(s)
- M Rowcliffe
- Dent Neurologic Institute, Amherst, NY, USA.,State University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA
| | | | | | - M Rainka
- Dent Neurologic Institute, Amherst, NY, USA
| | - M Janda
- State University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA
| | - V Bates
- Dent Neurologic Institute, Amherst, NY, USA
| | - F Gengo
- Dent Neurologic Institute, Amherst, NY, USA.,State University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA
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Quinn HL, Bonham L, Hughes CM, Donnelly RF. Design of a Dissolving Microneedle Platform for Transdermal Delivery of a Fixed-Dose Combination of Cardiovascular Drugs. J Pharm Sci 2015; 104:3490-500. [DOI: 10.1002/jps.24563] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/08/2015] [Accepted: 06/10/2015] [Indexed: 01/01/2023]
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30
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Bliden KP, Patrick J, Pennell AT, Tantry US, Gurbel PA. Drug delivery and therapeutic impact of extended-release acetylsalicylic acid. Future Cardiol 2015; 12:45-58. [PMID: 26356085 DOI: 10.2217/fca.15.60] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Current treatment guidelines recommend once-daily, low-dose acetylsalicylic acid (ASA; aspirin) for secondary prevention of cardiovascular events. However, the anti-thrombotic benefits of traditional ASA formulations may not extend over a 24-h period, especially in patients at high risk for a recurrent cardiovascular event. A next-generation, extended-release ASA formulation (ER-ASA) has been developed to provide 24-h anti-thrombotic coverage with once-daily dosing. The pharmacokinetics of ER-ASA indicates slower absorption and prolonged ASA release versus immediate-release ASA, with a favorable safety profile. ER-ASA minimizes systemic ASA absorption and provides sustained antiplatelet effects over a 24-h period.
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Affiliation(s)
- Kevin P Bliden
- Sinai Center for Thrombosis Research, Baltimore, MD, USA
| | - Jeff Patrick
- New Haven Pharmaceuticals, Inc., North Haven, CT, USA
| | | | - Udaya S Tantry
- Sinai Center for Thrombosis Research, Baltimore, MD, USA
| | - Paul A Gurbel
- Sinai Center for Thrombosis Research, Baltimore, MD, USA
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31
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Patrick J, Dillaha L, Armas D, Sessa WC. A randomized trial to assess the pharmacodynamics and pharmacokinetics of a single dose of an extended-release aspirin formulation. Postgrad Med 2015; 127:573-80. [PMID: 25998572 DOI: 10.1080/00325481.2015.1050341] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AIMS Low-dose acetylsalicylic acid (ASA; aspirin) for secondary prevention reduces cardiovascular disease mortality risk. ASA acetylates cyclooxygenase in the portal circulation and is rapidly (half-life, 20 min) hydrolyzed. Certain patients with cardiovascular disease may exhibit high on-therapy platelet reactivity as a result of high platelet turnover, a process whereby platelets are produced and are active beyond the duration of antiplatelet coverage provided by once-daily immediate-release (IR) ASA. A once-daily, extended-release (ER) ASA formulation using ER microcapsule technology was developed to release ASA over the 24-h dosing interval and reduce maximal plasma concentrations to spare peripheral endogenous endothelial prostacyclin production. METHODS Healthy adults (n = 50) were randomized in a crossover study to receive two different ER-ASA single doses (up to 325 mg) and two different IR-ASA single doses (up to 81 mg) in four periods, each separated by ≥14 days. Pharmacodynamics was assessed by measuring serum thromboxane B2 (TXB2), urine 11-dehydro-TXB2, and arachidonic acid-induced platelet aggregation. Pharmacokinetics was determined for ASA and salicylic acid (SA). RESULTS Both formulations produced dose-dependent inhibition on all pharmacodynamic parameters. Marked inhibition of TXB2 and 11-dehydro-TXB2 was maintained over the 24-h dosing interval after a dose of ≥81 mg ER-ASA or ≥40 mg IR-ASA. The dose required to achieve 50% of maximum TXB2 inhibition with ER-ASA was 49.9 mg versus 29.6 mg for IR-ASA, for a similar maximum pharmacodynamic effect (98.9% TXB2 inhibition). This suggests that an approximately twofold greater ER-ASA dose (162.5 mg) is necessary to obtain the same response as that of IR-ASA 81 mg. Peak ASA concentrations were lower and Tmax was longer with ER-ASA versus IR-ASA. Administration of IR-ASA resulted in a dose-normalized mean Cmax of ASA that was approximately sixfold higher than that for ER-ASA and a Cmax of SA approximately two- to threefold higher than that for ER-ASA. CONCLUSION Both ASA formulations showed dose-dependent antiplatelet activity. Compared with the IR-ASA, ER-ASA released active drug more slowly, resulting in prolonged absorption and lower systemic drug concentrations, which is expected for an ER (24-h) formulation.
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Affiliation(s)
- Jeff Patrick
- New Haven Pharmaceuticals, Inc. , North Haven, CT , USA
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Determinants of reduced antiplatelet effect of aspirin in patients with stable coronary artery disease. PLoS One 2015; 10:e0126767. [PMID: 25993271 PMCID: PMC4436265 DOI: 10.1371/journal.pone.0126767] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 04/07/2015] [Indexed: 01/21/2023] Open
Abstract
Background Aspirin is a cornerstone in management of coronary artery disease (CAD). However, considerable variability in the antiplatelet effect of aspirin has been reported. Aim To investigate independent determinants of reduced antiplatelet effect of aspirin in stable CAD patients. Methods We performed a cross-sectional study including 900 stable, high-risk CAD patients. Among these, 795 (88%) had prior myocardial infarction, 250 (28%) had type 2 diabetes, and 170 (19%) had both. All patients received 75 mg aspirin daily as mono antiplatelet therapy. The antiplatelet effect of aspirin was assessed by measurement of platelet aggregation employing 1) multiple electrode aggregometry (MEA, Multiplate Analyzer) in whole blood anticoagulated with citrate or hirudin using arachidonic acid (AA) or collagen as agonists, and 2) VerifyNow Aspirin Assay. Compliance was assessed by measurement of serum thromboxane B2. Results Platelet count, prior myocardial infarction, type 2 diabetes and body mass index were independent determinants of increased AA-induced MEA platelet aggregation in citrate and hirudin anticoagulated blood (p-values ≤ 0.045). Similar results were found with VerifyNow. Prior coronary artery bypass grafting, age, smoking (MEA, AA/citrate) and female gender (MEA, AA/hirudin) were also independent determinants of increased platelet aggregation (p-values ≤ 0.038). Compliance was confirmed by low serum thromboxane B2 levels in all patients (median [25%;75%]: 0.97 [0.52;1.97], range 0.02-26.44 ng/ml). Conclusion Platelet count, prior myocardial infarction, type 2 diabetes and body mass index were independent determinants of increased platelet aggregation, indicating that these characteristics may be key factors in reduced antiplatelet effect of aspirin in stable CAD patients.
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Kim JT, Heo SH, Lee JS, Choi MJ, Choi KH, Nam TS, Lee SH, Park MS, Kim BC, Kim MK, Cho KH. Aspirin resistance in the acute stages of acute ischemic stroke is associated with the development of new ischemic lesions. PLoS One 2015; 10:e0120743. [PMID: 25849632 PMCID: PMC4388531 DOI: 10.1371/journal.pone.0120743] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 01/26/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Aspirin is a primary antiplatelet agent for the secondary prevention of ischemic stroke. However, if aspirin fails to inhibit platelet function, as is expected in acute ischemic stroke (AIS), it may increase the rate of early clinical events. Therefore, we sought to determine whether aspirin resistance in the acute stage was associated with early radiological events, including new ischemic lesions (NILs). METHODS This study was a single-center, prospective, observational study conducted between April 2012 and May 2013. Aspirin 300 mg was initially administered followed by maintenance doses of 100 mg daily. The acute aspirin reaction unit (aARU) was consistently measured after 3 hours of aspirin loading. An aARU value ≥550 IU was defined as biological aspirin resistance (BAR). NILs on follow-up diffusion-weighted imaging (DWI) were defined as lesions separate from index lesions, which were not detected on the initial DWI. RESULTS A total of 367 patients were analyzed in this study. BAR in aARU was detected in 60 patients (16.3%). On follow-up DWI, 81 patients (22.1%) had NILs, which were frequently in the same territory as the index lesions (79%), pial infarcts (61.7%), and located within the cortex (59.3%). BAR was independently associated with NILs on follow-up DWI (adjusted OR 2.00, 95% CIs 1.01-3.96; p = 0.047). CONCLUSION In conclusion, BAR in aARU could be associated with NILs on follow-up DWI in AIS. Therefore, a further prospective study with a longer follow-up period is necessary to evaluate the clinical implications of aARU in AIS.
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Affiliation(s)
- Joon-Tae Kim
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
- * E-mail: (JTK); (MSP)
| | - Suk-Hee Heo
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun, Jeonnam, Korea
| | - Ji Sung Lee
- Clinical Trial Center, Asan Medical Center, Seoul, Korea
| | - Min-Ji Choi
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Kang-Ho Choi
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Tai-Seung Nam
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Seung-Han Lee
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Man-Seok Park
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
- * E-mail: (JTK); (MSP)
| | - Byeong C. Kim
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Myeong-Kyu Kim
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Ki-Hyun Cho
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
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Rocca B, Dragani A, Pagliaccia F. Identifying determinants of variability to tailor aspirin therapy. Expert Rev Cardiovasc Ther 2014; 11:365-79. [DOI: 10.1586/erc.12.144] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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del Castillo-Carnevali H, Barrios Alonso V, Zamorano Gómez JL. [Antiplatelet therapy: resistance to traditional antiaggregation drugs and role of new antiplatelet agents]. Med Clin (Barc) 2013; 143:222-9. [PMID: 24342012 DOI: 10.1016/j.medcli.2013.09.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 09/18/2013] [Accepted: 09/26/2013] [Indexed: 01/21/2023]
Abstract
Platelet aggregation plays a key role in the development of major cardiovascular events (MACE) related to atherothrombosis. Since the appearance of coronary stenting, the importance of measuring and modulating platelet activity has considerably increased in the scientific literature during the last decade. Double antiplatelet therapy with aspirin and clopidogrel administrated to stent carriers has widely demonstrated its efficacy in the prevention of MACE compared with aspirin alone. These benefits are also present when a conservatory approach is chosen for acute coronary syndrome management. However, there are an important number of patients who develop MACE despite optimal dual antiplatelet therapy, most likely related to an incomplete platelet activity inhibition. Many studies suggest an important inter-individual variability in the response to the drugs, maybe related, at least in part, to the use of different assessment techniques of platelet aggregation. Other authors suggest an incomplete platelet inhibition as a possible explanation for the presence of MACE in patients under optimal antiplatelet therapy. Resistance to usual drugs has become a clinically relevant issue that requires an individual approach where new antiplatelet agents, such as prasugrel or ticagrelor, could play an important role as stated in current consensus documents.
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Shahid F, Chahal CAA, Akhtar MJ. Aspirin treatment failure: is this a real phenomenon? A review of the aetiology and how to treat it. JRSM SHORT REPORTS 2013; 4:30. [PMID: 23560230 PMCID: PMC3616305 DOI: 10.1177/2042533313475576] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Multiple clinical trials have shown that aspirin can reduce all cardiovascular events in primary and secondary prevention and yet there is a large population in whom aspirin fails. This review brings together the evidence and controversies surrounding the definition of ‘aspirin treatment failure’, its clinical significance and the possible approaches to managing such patients. Several different assays have been developed to measure the biochemical action of aspirin. At present there is no ‘gold standard’ and there is massive disparity between methods. Studies thus far have shown inconsistent results and to date the treatment of aspirin therapy failure is left to the discretion of the leading physician.
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Affiliation(s)
- F Shahid
- Department of Cardiology, Newham University Hospital NHS Trust , London E13 8SL , UK
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37
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Fallahi P, Katz R, Toma I, Li R, Reiner J, VanHouten K, Carpio L, Marshall L, Lian Y, Bupp S, Fu SW, Rickles F, Leitenberg D, Lai Y, Weksler BB, Rebling F, Yang Z, McCaffrey TA. Aspirin insensitive thrombophilia: transcript profiling of blood identifies platelet abnormalities and HLA restriction. Gene 2013; 520:131-8. [PMID: 23454623 DOI: 10.1016/j.gene.2013.02.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/12/2013] [Accepted: 02/13/2013] [Indexed: 10/27/2022]
Abstract
Aspirin is the most widely used antiplatelet agent because it is safe, efficient, and inexpensive. However, a significant subset of patients does not exhibit a full inhibition of platelet aggregation, termed 'aspirin resistance' (AR). Several major studies have observed that AR patients have a 4-fold increased risk of myocardial infarction (MI), stroke, and other thrombotic events. Arachidonic acid-stimulated whole blood aggregation was tested in 132 adults at risk for ischemic events, and identified an inadequate response to aspirin therapy in 9 patients (6.8%). Expression profiling of blood RNA by microarray was used to generate new hypotheses about the etiology of AR. Among the differentially expressed genes, there were decreases in several known platelet transcripts, including clusterin (CLU), glycoproteins IIb/IIIa (ITGA2B/3), lipocalin (LCN2), lactoferrin (LTF), and the thrombopoetin receptor (MPL), but with increased mRNA for the T-cell Th1 chemokine CXCL10. There was a strong association of AR with expression of HLA-DRB4 and HLA-DQA1. Similar HLA changes have been linked to autoimmune disorders, particularly antiphospholipid syndrome (APS), in which autoantibodies to phospholipid/protein complexes can trigger platelet activation. Consistent with APS, AR patients exhibited a 30% reduction in platelet counts. Follow-up testing for autoimmune antibodies observed only borderline titers in AR patients. Overall, these results suggest that AR may be related to changes in platelet gene expression creating a hyperreactive platelet, despite antiplatelet therapy. Future studies will focus on determining the protein levels of these differential transcripts in platelets, and the possible involvement of HLA restriction as a contributing factor.
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Affiliation(s)
- Payam Fallahi
- Department of Medicine, The George Washington University Medical Center, Washington, DC 20037, USA
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Hohlfeld T, Saxena A, Schrör K. High on treatment platelet reactivity against aspirin by non-steroidal anti-inflammatory drugs--pharmacological mechanisms and clinical relevance. Thromb Haemost 2012; 109:825-33. [PMID: 23238666 DOI: 10.1160/th12-07-0532] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 11/13/2012] [Indexed: 12/22/2022]
Abstract
Inhibition of platelet function by aspirin results from irreversible inhibition of platelet cyclooxygenase (COX)-1. While sufficient inhibition is obtained at antiplatelet doses (75-325 mg/day) in most (≥95%) treated patients, the antiplatelet effect of aspirin and subsequent cardiovascular risk reduction is much less in clinical settings and disease-dependent. Several reasons for this "high on treatment platelet reactivity" are known. This paper reviews the evidence for an interaction between aspirin and other COX inhibitors, namely non-steroidal anti-inflammatory drugs (NSAIDs). Numerous experimental studies demonstrated a pharmacodynamic interaction between aspirin and NSAIDs. This likely occurs within the hydrophobic substrate channel of platelet COX-1 and might be explained by molecular competition between inhibitor drugs and substrate (arachidonic acid) at overlapping binding sites. This interaction is found with some compounds, notably ibuprofen and dipyrone (metamizole), but not with others, such as diclofenac and acetaminophen (paracetamol). Hence, this interaction is not a class effect of NSAIDs and/or non-steroidal analgesics but rather due to specific structural requirements which still remain to be defined. In vivo studies on healthy subjects and patients tend to confirm this type of interaction as well as large differences between NSAIDs and non-steroidal analgesics, respectively. These interactions may be clinically relevant and may increase the cardiovascular risk in long-term treatment for primary and secondary cardiovascular prevention in patients with chronic inflammation, such as rheumatoid arthritis. These patients have an elevated risk for myocardial infarctions and may require chronic antiplatelet treatment by aspirin in addition to treatment of inflammatory pain.
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Affiliation(s)
- T Hohlfeld
- Institut für Pharmakologie und Klinische Pharmakologie, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, Düsseldorf, Germany.
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Sharma R, Choudhary S, Kishore N. Insights into the binding of the drugs diclofenac sodium and cefotaxime sodium to serum albumin: Calorimetry and spectroscopy. Eur J Pharm Sci 2012; 46:435-45. [DOI: 10.1016/j.ejps.2012.03.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 03/15/2012] [Accepted: 03/20/2012] [Indexed: 10/28/2022]
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Affiliation(s)
- M Lordkipanidzé
- Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK.
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