Apixaban plasma concentrations before and after catheter ablation for atrial fibrillation

Catheter ablation in patients with atrial fibrillation is associated with a transient increase in thromboembolic risk and adequate anticoagulation is highly important. When patients are anticoagulated with apixaban, monitoring of plasma concentrations of the drug is not routinely performed. This stu...

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Veröffentlicht in:PloS one 2024-07, Vol.19 (7), p.e0308022
Hauptverfasser: Aakerøy, Rachel, Loennechen, Jan Pål, Dyrkorn, Roar, Lydersen, Stian, Helland, Arne, Spigset, Olav
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container_issue 7
container_start_page e0308022
container_title PloS one
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creator Aakerøy, Rachel
Loennechen, Jan Pål
Dyrkorn, Roar
Lydersen, Stian
Helland, Arne
Spigset, Olav
description Catheter ablation in patients with atrial fibrillation is associated with a transient increase in thromboembolic risk and adequate anticoagulation is highly important. When patients are anticoagulated with apixaban, monitoring of plasma concentrations of the drug is not routinely performed. This study aimed to assess the influence of clinical patient characteristics, concomitant drug treatment and self-reported adherence on apixaban concentrations, and to describe the intra- and inter-individual variability in apixaban concentrations in this group of patients. Method Apixaban concentrations from 141 patients were measured in plasma one week before ablation and two, six and ten weeks after ablation, employing ultra-high performance liquid chromatography coupled with tandem mass spectrometry. In samples not obtained at trough, apixaban concentrations were adjusted to trough levels. Self-reported adherence was registered by means of the 8-item Morisky Medication Adherence Scale before and after ablation. There were statistically significant, positive correlations between apixaban concentrations and increased age, female sex, lower glomerular filtration rate, higher CHA2DS2-VASc score, use of cytochrome P450 3A4 and/or p-glycoprotein inhibitors, and use of amiodarone. Self-reported adherence was generally high. The mean intra-individual and inter-individual coefficients of variation were 29% and 49%, respectively. In patients undergoing catheter ablation for atrial fibrillation, age, sex, renal function, interacting drugs and cerebrovascular risk profile were all associated with altered plasma apixaban concentration. In this group of patients with a generally high self-reported adherence, intra-individual variability was modest, but the inter-individual variability was substantial, and similar to those previously reported in other patient apixaban-treated populations. If a therapeutic concentration range is established, there might be a need for a more flexible approach to apixaban dosing, guided by therapeutic drug monitoring.
doi_str_mv 10.1371/journal.pone.0308022
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When patients are anticoagulated with apixaban, monitoring of plasma concentrations of the drug is not routinely performed. This study aimed to assess the influence of clinical patient characteristics, concomitant drug treatment and self-reported adherence on apixaban concentrations, and to describe the intra- and inter-individual variability in apixaban concentrations in this group of patients. Method Apixaban concentrations from 141 patients were measured in plasma one week before ablation and two, six and ten weeks after ablation, employing ultra-high performance liquid chromatography coupled with tandem mass spectrometry. In samples not obtained at trough, apixaban concentrations were adjusted to trough levels. Self-reported adherence was registered by means of the 8-item Morisky Medication Adherence Scale before and after ablation. There were statistically significant, positive correlations between apixaban concentrations and increased age, female sex, lower glomerular filtration rate, higher CHA2DS2-VASc score, use of cytochrome P450 3A4 and/or p-glycoprotein inhibitors, and use of amiodarone. Self-reported adherence was generally high. The mean intra-individual and inter-individual coefficients of variation were 29% and 49%, respectively. In patients undergoing catheter ablation for atrial fibrillation, age, sex, renal function, interacting drugs and cerebrovascular risk profile were all associated with altered plasma apixaban concentration. In this group of patients with a generally high self-reported adherence, intra-individual variability was modest, but the inter-individual variability was substantial, and similar to those previously reported in other patient apixaban-treated populations. If a therapeutic concentration range is established, there might be a need for a more flexible approach to apixaban dosing, guided by therapeutic drug monitoring.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0308022</identifier><identifier>PMID: 39083480</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Ablation ; Ablation (Surgery) ; Aged ; Amiodarone ; Anticoagulants ; Apixaban ; Atrial fibrillation ; Atrial Fibrillation - blood ; Atrial Fibrillation - drug therapy ; Atrial Fibrillation - surgery ; Biology and Life Sciences ; Cardiac arrhythmia ; Care and treatment ; Catheter Ablation ; Catheters ; Chromatography ; Cytochrome P450 ; Cytochromes P450 ; Drug dosages ; Engineering and Technology ; Factor Xa Inhibitors - administration &amp; dosage ; Factor Xa Inhibitors - blood ; Factor Xa Inhibitors - pharmacokinetics ; Factor Xa Inhibitors - therapeutic use ; Female ; Fibrillation ; Glomerular filtration rate ; Glycoproteins ; High performance liquid chromatography ; Humans ; Ischemia ; Liquid chromatography ; Male ; Mass spectrometry ; Mass spectroscopy ; Medical instruments ; Medical research ; Medication Adherence ; Medicine and Health Sciences ; Medicine, Experimental ; Middle Aged ; Monitoring ; P-Glycoprotein ; Patient compliance ; Patients ; Plasma ; Pyrazoles - administration &amp; dosage ; Pyrazoles - blood ; Pyrazoles - pharmacokinetics ; Pyrazoles - therapeutic use ; Pyridones - administration &amp; dosage ; Pyridones - blood ; Pyridones - therapeutic use ; Radiofrequency ablation ; Renal function ; Risk assessment ; Rivaroxaban ; Sex ; Statistical analysis ; Stroke ; Telemedicine ; Thromboembolism ; Variability ; Variables</subject><ispartof>PloS one, 2024-07, Vol.19 (7), p.e0308022</ispartof><rights>Copyright: © 2024 Aakerøy et al. 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If a therapeutic concentration range is established, there might be a need for a more flexible approach to apixaban dosing, guided by therapeutic drug monitoring.</description><subject>Ablation</subject><subject>Ablation (Surgery)</subject><subject>Aged</subject><subject>Amiodarone</subject><subject>Anticoagulants</subject><subject>Apixaban</subject><subject>Atrial fibrillation</subject><subject>Atrial Fibrillation - blood</subject><subject>Atrial Fibrillation - drug therapy</subject><subject>Atrial Fibrillation - surgery</subject><subject>Biology and Life Sciences</subject><subject>Cardiac arrhythmia</subject><subject>Care and treatment</subject><subject>Catheter Ablation</subject><subject>Catheters</subject><subject>Chromatography</subject><subject>Cytochrome P450</subject><subject>Cytochromes P450</subject><subject>Drug dosages</subject><subject>Engineering and Technology</subject><subject>Factor Xa Inhibitors - administration &amp; dosage</subject><subject>Factor Xa Inhibitors - blood</subject><subject>Factor Xa Inhibitors - pharmacokinetics</subject><subject>Factor Xa Inhibitors - therapeutic use</subject><subject>Female</subject><subject>Fibrillation</subject><subject>Glomerular filtration rate</subject><subject>Glycoproteins</subject><subject>High performance liquid chromatography</subject><subject>Humans</subject><subject>Ischemia</subject><subject>Liquid chromatography</subject><subject>Male</subject><subject>Mass spectrometry</subject><subject>Mass spectroscopy</subject><subject>Medical instruments</subject><subject>Medical research</subject><subject>Medication Adherence</subject><subject>Medicine and Health Sciences</subject><subject>Medicine, Experimental</subject><subject>Middle Aged</subject><subject>Monitoring</subject><subject>P-Glycoprotein</subject><subject>Patient compliance</subject><subject>Patients</subject><subject>Plasma</subject><subject>Pyrazoles - administration &amp; 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When patients are anticoagulated with apixaban, monitoring of plasma concentrations of the drug is not routinely performed. This study aimed to assess the influence of clinical patient characteristics, concomitant drug treatment and self-reported adherence on apixaban concentrations, and to describe the intra- and inter-individual variability in apixaban concentrations in this group of patients. Method Apixaban concentrations from 141 patients were measured in plasma one week before ablation and two, six and ten weeks after ablation, employing ultra-high performance liquid chromatography coupled with tandem mass spectrometry. In samples not obtained at trough, apixaban concentrations were adjusted to trough levels. Self-reported adherence was registered by means of the 8-item Morisky Medication Adherence Scale before and after ablation. There were statistically significant, positive correlations between apixaban concentrations and increased age, female sex, lower glomerular filtration rate, higher CHA2DS2-VASc score, use of cytochrome P450 3A4 and/or p-glycoprotein inhibitors, and use of amiodarone. Self-reported adherence was generally high. The mean intra-individual and inter-individual coefficients of variation were 29% and 49%, respectively. In patients undergoing catheter ablation for atrial fibrillation, age, sex, renal function, interacting drugs and cerebrovascular risk profile were all associated with altered plasma apixaban concentration. In this group of patients with a generally high self-reported adherence, intra-individual variability was modest, but the inter-individual variability was substantial, and similar to those previously reported in other patient apixaban-treated populations. If a therapeutic concentration range is established, there might be a need for a more flexible approach to apixaban dosing, guided by therapeutic drug monitoring.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>39083480</pmid><doi>10.1371/journal.pone.0308022</doi><tpages>e0308022</tpages><orcidid>https://orcid.org/0000-0001-7902-9014</orcidid><orcidid>https://orcid.org/0000-0002-2348-4015</orcidid><oa>free_for_read</oa></addata></record>
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1932-6203
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subjects Ablation
Ablation (Surgery)
Aged
Amiodarone
Anticoagulants
Apixaban
Atrial fibrillation
Atrial Fibrillation - blood
Atrial Fibrillation - drug therapy
Atrial Fibrillation - surgery
Biology and Life Sciences
Cardiac arrhythmia
Care and treatment
Catheter Ablation
Catheters
Chromatography
Cytochrome P450
Cytochromes P450
Drug dosages
Engineering and Technology
Factor Xa Inhibitors - administration & dosage
Factor Xa Inhibitors - blood
Factor Xa Inhibitors - pharmacokinetics
Factor Xa Inhibitors - therapeutic use
Female
Fibrillation
Glomerular filtration rate
Glycoproteins
High performance liquid chromatography
Humans
Ischemia
Liquid chromatography
Male
Mass spectrometry
Mass spectroscopy
Medical instruments
Medical research
Medication Adherence
Medicine and Health Sciences
Medicine, Experimental
Middle Aged
Monitoring
P-Glycoprotein
Patient compliance
Patients
Plasma
Pyrazoles - administration & dosage
Pyrazoles - blood
Pyrazoles - pharmacokinetics
Pyrazoles - therapeutic use
Pyridones - administration & dosage
Pyridones - blood
Pyridones - therapeutic use
Radiofrequency ablation
Renal function
Risk assessment
Rivaroxaban
Sex
Statistical analysis
Stroke
Telemedicine
Thromboembolism
Variability
Variables
title Apixaban plasma concentrations before and after catheter ablation for atrial fibrillation
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