scholarly journals Assessment of the anti-Xa activities of Low Molecular Weight Heparins in Patients with Acute Coronary Syndrome

2000 ◽  
Vol 30 (3) ◽  
pp. 271 ◽  
Author(s):  
Dae Kyeong Kim ◽  
Namsik Chung ◽  
Yangsoo Jang ◽  
Donghoon Choi ◽  
Seung Hyuck Choi ◽  
...  
Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 2308-2308
Author(s):  
Debra Hoppensteadt ◽  
Walter Jeske ◽  
Jeanine M. Walenga ◽  
Bruce E Lewis ◽  
Jawed Fareed

Abstract Abstract 2308 Low molecular weight heparins such as enoxaparin and dalteparin are widely used for the management of Acute Coronary Syndrome (ACS). Recently, several generic versions of enoxaparin and dalteparin have been approved in various countries for all of the branded product's indications. However, no data on their clinical equivalence in ACS is available. Since generic versions of enoxaparin and dalteparin are manufactured by different processes and may use starting material from different sources, these drugs may differ in their pharmacological profile in simulated ACS settings. To compare the pharmacodynamic effects, a branded version of enoxaparin was compared with three generic versions in a primate model at a dosage of 1 mg/kg IV. Such pharmacokinetic parameters as TFPI release, TAFI modulation, vWF release, and TF mediated platelet activation were measured. Anticoagulant effects of these drugs were also measured after IV administration using iSTAT ACT and aPTT. Simulated catheter related thrombosis studies were carried out to differentiate each agent in contact, intrinsic and extrinsic clotting systems. The generic versions of enoxaparin namely, Cutenox (Gland Pharma), Fibrinox (Sandoz AG) and Versa (EuroPharma) exhibited product based pharmacodynamic differences compared with the branded product and the results are provided in the following table. Each of the generic products exhibited its own specific pharmacologic profile despite comparable molecular weight distributions and anti-Xa potencies. Significant differences were noted in the anticoagulant effects of each of these agents as compared with the branded products. Some differences were also noted in HIT antibody mediated aggregation studies. The differences between the branded and generic versions of LMWHs may be due to the higher dosages used and the IV administration which leads to higher circulating levels of these agents. These observations suggest the need for additional animal studies and clinical trials to validate the use of generic versions of LMWHs in such critical indications as ACS and related syndromes. Disclosures: No relevant conflicts of interest to declare.


ESC CardioMed ◽  
2018 ◽  
pp. 250-253
Author(s):  
Paul Guedeney ◽  
Mathieu Kerneis ◽  
Johanne Silvain ◽  
Gilles Montalescot ◽  
Jean-Philippe Collet

Low-molecular-weight heparins (LMWHs) are an therapeutic alternative to unfractionated heparin (UFH) for parenteral anticoagulation, with more reliable pharmacological properties and also an easier practical use. LMWHs are recommended for acute coronary syndrome and thromboembolic diseases.


2002 ◽  
Vol 43 (5) ◽  
pp. 433-442 ◽  
Author(s):  
Murat Özdemir ◽  
Güliz Erdem ◽  
Sedat Türkoglu ◽  
Mustafa Cemri ◽  
Timur Timurkaynak ◽  
...  

2000 ◽  
Vol 139 (3) ◽  
pp. 423-429 ◽  
Author(s):  
Bernie J. O'Brien ◽  
Andrew Willan ◽  
Gordon Blackhouse ◽  
Ron Goeree ◽  
Marc Cohen ◽  
...  

Author(s):  
Ю.Н. Панина ◽  
В.И. Вишневский

По мере того как пандемия COVID-19 продолжает разворачиваться, растет и уровень понимания этиопатогенеза, диагностики и лечения данного заболевания. На сегодняшний день становится ясным, что инфекция, вызванная SARS-CoV-2, предрасполагает к состоянию гиперкоагуляции с некоторыми тромботическими событиями, включая острый коронарный синдром. Однако несмотря на то, что пандемия началась более года назад, неопределенность в отношении антикоагулянтной терапии у пациентов с COVID-19 продолжает преобладать. Учитывая, что в настоящее время нет стандартизированного подхода к антикоагулянтной терапии у пациентов с острым коронарным синдромом и COVID-19, нами был проведен обзор научной литературы по данной проблеме. В результате исследования было выявлено, что тактика ведения пациентов с острым коронарным синдромом и COVID-19 в целом не отличается от стандартно принятой. Однако следует уделять особое внимание лекарственным взаимодействиям между антитромбоцитарными препаратами, антикоагулянтами и терапией COVID-19. Также мы отметили, что помимо антикоагулянтных и противовоспалительных свойств гепарины обладают прямым противовирусным эффектом. Все пациенты с инфарктом миокарда с подъемом сегмента ST должны получать стандартную медикаментозную терапию, которая включает нефракционированный гепарин. У пациентов с инфарктом миокарда без подъема сегмента ST с ранней инвазивной стратегией рекомендуется использовать нефракционированный гепарин вместо низкомолекулярного гепарина в качестве антикоагулянта выбора. При этом использование у пациентов с инфарктом миокарда без подъема сегмента ST и COVID-19 низкомолекулярного гепарина предпочтительнее, чем нефракционированного гепарина. As the COVID-19 pandemic continues to unfold, the level of understanding of the etiopathogenesis, diagnosis and treatment of this disease is also growing. To date, it is becoming clear that infection caused by SARS-CoV-2 is a predisposition to a state of hypercoagulation with some thrombotic events, including acute coronary syndrome. However, despite the fact that the pandemic began 1 year ago, uncertainty about anticoagulant therapy in patients with COVID-19 continues to prevail. Given that there is currently no standardized approach to anticoagulation in patients with ACS and COVID-19, we conducted a review of the scientific literature on this problem. As a result of the study, it was found that the management tactics of patients with ACS and COVID-19 generally do not differ from the standard accepted ones. However, special attention should be paid to drug interactions between antiplatelet drugs, anticoagulants, and COVID-19 therapy. We also noted that in addition to anticoagulant and anti-inflammatory properties, heparins have a direct antiviral effect. All patients with ST-segment elevation myocardial infarction should receive standard medical therapy, which includes unfractionated heparin. In patients with non-ST-elevation myocardial infarction with an early invasive strategy, it is recommended to use heparin instead of low-molecular-weight heparin as the anticoagulant of choice. At the same time, the use of low-molecular-weight heparin in patients with myocardial infarction without ST-segment elevation and COVID-19 is preferable to unfractionated heparin.


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