{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:57:49Z","timestamp":1790769469924,"version":"4.1.0"},"reference-count":29,"publisher":"Georg Thieme Verlag KG","issue":"12","funder":[{"name":"Collegium Medicum of Nicolaus Copernicus University","award":["202"],"award-info":[{"award-number":["202"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Thromb Haemost"],"published-print":{"date-parts":[[2016,11]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Aim of this study was assessment of the relationship between concentrations of ticagrelor and its active metabolite (AR-C124910XX) and results of selected platelet function tests. In a single-centre, cohort study, patients with myocardial infarction underwent blood sampling following a 180 mg ticagrelor loading dose intake (predose, 1, 2, 3, 4, 6, 12, 24 hours postdose) to perform pharmacokinetic and pharmacodynamic assessments. Platelet reactivity was evaluated using the VASP-assay, the VerifyNow device and the Multiplate analyzer. Analysis of 36 patients revealed high negative correlations between ticagrelor concentrations and platelet reactivity evaluated with all three platelet function tests (the VASP-assay: RS=-0.722; p&lt;0.0001; the VerifyNow device: RS=-0.715; p&lt;0.0001; the Multiplate analyzer: RS=-0.722; p&lt;0.0001), with no significant differences between correlation coefficients. Similar results were found for AR-C124910XX. Platelet reactivity values assessed with all three methods generally correlated well with each other; however, a significantly higher correlation (p&lt;0.02) was demonstrated between the VerifyNow and Multiplate tests (RS=0.707; p&lt;0.0001) than in other assay combinations (the VASP-assay and the VerifyNow device: RS=0.595; p&lt;0.0001; the VASP-assay and the Multiplate analyzer: RS=0.588; p&lt;0.0001). With respect to the recognition of high platelet reactivity, we found higher measurement concordance between the VerifyNow and Multiplate tests compared with other assay combinations, while for low platelet reactivity, only results of the VerifyNow and Multiplate assay were related to each other. Platelet reactivity measurements performed with the VASP, VerifyNow and Multiplate tests show comparably strong negative correlations with ticagrelor and AR-C124910XX concentrations.<\/jats:p><jats:p>Study registration: ClinicalTrials.gov identifier NCT02690454.<\/jats:p>","DOI":"10.1160\/th16-07-0535","type":"journal-article","created":{"date-parts":[[2016,9,15]],"date-time":"2016-09-15T09:39:15Z","timestamp":1473932355000},"page":"1140-1149","source":"Crossref","is-referenced-by-count":14,"title":["Which platelet function test best reflects the in vivo plasma concentrations of ticagrelor and its active metabolite?"],"prefix":"10.1160","volume":"116","author":[{"given":"Piotr","family":"Adamski","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joanna","family":"Sikora","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Sikora","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aleksandra","family":"Karczmarska-W\u00f3dzka","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michat","family":"Marsza\u0142","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joanna","family":"Boinska","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ewa","family":"Laskowska","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ewa","family":"Obo\u0144ska","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomasz","family":"Fabiszak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Kubica","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marek","family":"Kozi\u0144ski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ma\u0142gorzata","family":"Ostrowska","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2018,3,9]]},"reference":[{"key":"10.1160\/TH16-07-0535-1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehv320"},{"key":"10.1160\/TH16-07-0535-2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehs289"},{"key":"10.1160\/TH16-07-0535-3","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.109.912550"},{"key":"10.1160\/TH16-07-0535-4","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0904327"},{"key":"10.1160\/TH16-07-0535-5","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehv104"},{"key":"10.1160\/TH16-07-0535-6","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/eht375"},{"key":"10.1160\/TH16-07-0535-7","doi-asserted-by":"publisher","DOI":"10.1160\/TH14-05-0449"},{"key":"10.1160\/TH16-07-0535-8","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2013.07.101"},{"key":"10.1160\/TH16-07-0535-9","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2015.12.062"},{"key":"10.1160\/TH16-07-0535-10","unstructured":"Which platelet function test best reflects the in vivo plasma concentrations of ticagrelor and its active metabolite? 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