{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,5,18]],"date-time":"2024-05-18T02:51:57Z","timestamp":1716000717768},"reference-count":17,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,8,20]],"date-time":"2013-08-20T00:00:00Z","timestamp":1376956800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Hematological Oncology"],"published-print":{"date-parts":[[2014,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This multicentre study focused on monitoring imatinib mesylate (IMA) trough plasma (C<jats:sub>trough<\/jats:sub>) and intracellular (IMA C<jats:sub>intrac<\/jats:sub>) concentrations in 228 chronic myelogenous leukaemia patients. The median of measured IMA C<jats:sub>trough<\/jats:sub> in our patient group was 905.8\u2009ng\u2009ml (range: 27.7\u20134628.1\u2009ng\/ml). We found a correlation between IMA C<jats:sub>trough<\/jats:sub> and alpha 1\u2010acid glycoprotein plasma concentrations (<jats:italic>rS<\/jats:italic>\u2009=\u20090.42; <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). All other analysed parameters revealed only weak (gender, dose of IMA per kg) or not significant (age, albumin, creatinine plasma concentration or body mass index) impact on measured IMA C<jats:sub>trough.<\/jats:sub> The IMA C<jats:sub>trough<\/jats:sub> decreased during the first 6\u2009months and significantly increased later during treatment. The IMA C<jats:sub>trough<\/jats:sub> at the first month of therapy did not differ between patients with and without an optimal response at the 12th (<jats:italic>p<\/jats:italic>\u2009=\u20090.724) and 18th month (<jats:italic>p<\/jats:italic>\u2009=\u20090.135) of therapy. There were no significant differences in medians of IMA C<jats:sub>trough<\/jats:sub> between both groups measured during the first year of treatment. The IMA C<jats:sub>intrac<\/jats:sub> during the first month were not different between patients with and without an optimal response at the 6th (<jats:italic>p<\/jats:italic>\u2009=\u20090.273) and the 12th month (<jats:italic>p<\/jats:italic>\u2009=\u20090.193) of therapy. Our data obtained from real life clinical practice did not find a benefit of routine and regular IMA C<jats:sub>trough<\/jats:sub> nor IMA C<jats:sub>intrac<\/jats:sub> therapeutic drug monitoring in chronic myelogenous leukaemia patients or for subsequent adjustments of the IMA dose based on these results. Moreover, actual alpha 1\u2010acid glycoprotein plasma concentration should be used for proper interpretation of IMA C<jats:sub>trough<\/jats:sub> results. Copyright \u00a9 2013 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/hon.2091","type":"journal-article","created":{"date-parts":[[2013,8,21]],"date-time":"2013-08-21T03:44:12Z","timestamp":1377056652000},"page":"87-93","source":"Crossref","is-referenced-by-count":5,"title":["No clinical evidence for performing trough plasma and intracellular imatinib concentrations monitoring in patients with chronic myelogenous leukaemia"],"prefix":"10.1002","volume":"32","author":[{"given":"Zdenek","family":"Racil","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Hematology and Oncology University Hospital Brno  Brno Czech Republic"},{"name":"Faculty of Medicine Masaryk University  Brno Czech Republic"},{"name":"CEITEC \u2010 Central European Institute of Technology Masaryk University  Brno Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Filip","family":"Razga","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hematology and Oncology University Hospital Brno  Brno Czech Republic"},{"name":"Department for Biomaterials Research Polymer Institute of the Slovak Academy of Sciences  Bratislava Slovakia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hana","family":"Klamova","sequence":"additional","affiliation":[{"name":"Institute of Hematology and Blood Transfusion  Prague Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaroslava","family":"Voglova","sequence":"additional","affiliation":[{"name":"IV. 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