Evaluation of the effects and plasma concentration of the platelet inhibitor ticagrelor, after crushed and non-crushed intake, after cardiac arrest and after semi-urgent coronary artery bypass surgery.
Lukas Duvillier, Carl Verhaege, Katrien M J Devreese, Sofie Gevaert, Harlinde Peperstraete
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引用次数: 0
Abstract
Background: Ticagrelor, used in acute coronary syndrome (ACS), can be administered via nasogastric tube when oral intake is impossible. We investigated platelet inhibition and pharmacokinetics in resuscitated ACS patients and those undergoing semi-urgent coronary artery bypass graft (CABG) surgery. Our study aimed to assess platelet inhibition with use of the Platelet Function Analyser (PFA) and measured plasma concentrations of ticagrelor and its active metabolite in these ACS patients.
Methods: We included resuscitated cardiac arrest patients (STEMI/NSTEMI) and semi-urgent CABG patients. Crushed ticagrelor tablets were administered using a nasogastric tube. PFA closure time (CT) was determined with CT longer than 113 s as reference range. Plasma concentrations of ticagrelor and its active metabolite were measured after protein precipitation, by using liquid chromatography with mass spectrometry detection.
Results: In 20 resuscitated patients, 89% showed platelet inhibition at 24 h and 92% at day 4. For semi-urgent CABG patients, 85% exhibited platelet inhibition at 24 h and 84% at day 4. For ticagrelor in resuscitated patients, the median time to peak plasma concentration (Tmax) was 100 h [8; 100] for a median maximal concentration (Cmax) of 615.5 ng/mL [217.5; 1385.0]. For AR-C124910XX median Tmax was 100 h [8; 100] for a Cmax of 131.0 ng/mL [52.1; 177.7]. Among 20 patients undergoing semi-urgent CABG, Tmax for ticagrelor was 100 h [100; 100] for a median Cmax of 857.0 ng/ml [496.8; 1157.5]. For AR-C124910XX, median Tmax was 100 h [43; 100] for a Cmax of 251.0 ng/ml [173.0; 396.5].
Conclusion: Crushed ticagrelor via nasogastric tube achieved targeted platelet inhibition. Pharmacokinetics aligned with previous studies.EudraCT number: 2013-004191-35; Study protocol code: AGO/2013/011; EC/2014/1061; ClinicalTrial.gov identifier: NCT02341729.
期刊介绍：
Acta Cardiologica is an international journal. It publishes bi-monthly original, peer-reviewed articles on all aspects of cardiovascular disease including observational studies, clinical trials, experimental investigations with clear clinical relevance and tutorials.
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