Off-label use of reduced dose direct oral factor Xa inhibitors in subjects with atrial fibrillation: a review of clinical evidence

Abstract In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected pati...

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Published inEuropean heart journal. Cardiovascular pharmacotherapy Vol. 7; no. 4; pp. 334 - 345
Main Authors Bo, Mario, Corsini, Alberto, Brunetti, Enrico, Isaia, Gianluca, Gibello, Maddalena, Ferri, Nicola, Poli, Daniela, Marchionni, Niccolò, De Ferrari, Gaetano Maria
Format Journal Article
LanguageEnglish
Published England Oxford University Press 23.07.2021
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Abstract Abstract In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected patients. To assess whether this strategy is associated with some clinical benefit, we used a physician-centred approach to evaluate whether current evidence supports the hypothesis that a substantial proportion of underdosing may be voluntary rather than casual, whether and to what extent oFXaIs’ dose rather than patients’ characteristics are associated with bleeding events, and which are the safety and efficacy clinical implications of oFXaIs’ underdosing. Our review found consistent evidence that underdosing is often an intentional strategy; however, available studies do not demonstrate a sizeable net clinical benefit of using off-label RD oFXaIs.
AbstractList In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected patients. To assess whether this strategy is associated with some clinical benefit, we used a physician-centred approach to evaluate whether current evidence supports the hypothesis that a substantial proportion of underdosing may be voluntary rather than casual, whether and to what extent oFXaIs’ dose rather than patients’ characteristics are associated with bleeding events, and which are the safety and efficacy clinical implications of oFXaIs’ underdosing. Our review found consistent evidence that underdosing is often an intentional strategy; however, available studies do not demonstrate a sizeable net clinical benefit of using off-label RD oFXaIs.
Abstract In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected patients. To assess whether this strategy is associated with some clinical benefit, we used a physician-centred approach to evaluate whether current evidence supports the hypothesis that a substantial proportion of underdosing may be voluntary rather than casual, whether and to what extent oFXaIs’ dose rather than patients’ characteristics are associated with bleeding events, and which are the safety and efficacy clinical implications of oFXaIs’ underdosing. Our review found consistent evidence that underdosing is often an intentional strategy; however, available studies do not demonstrate a sizeable net clinical benefit of using off-label RD oFXaIs.
In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected patients. To assess whether this strategy is associated with some clinical benefit, we used a physician-centred approach to evaluate whether current evidence supports the hypothesis that a substantial proportion of underdosing may be voluntary rather than casual, whether and to what extent oFXaIs' dose rather than patients' characteristics are associated with bleeding events, and which are the safety and efficacy clinical implications of oFXaIs' underdosing. Our review found consistent evidence that underdosing is often an intentional strategy; however, available studies do not demonstrate a sizeable net clinical benefit of using off-label RD oFXaIs.In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke prevention in non-valvular atrial fibrillation, possibly reflecting the hope to increase safety without reducing efficacy in selected patients. To assess whether this strategy is associated with some clinical benefit, we used a physician-centred approach to evaluate whether current evidence supports the hypothesis that a substantial proportion of underdosing may be voluntary rather than casual, whether and to what extent oFXaIs' dose rather than patients' characteristics are associated with bleeding events, and which are the safety and efficacy clinical implications of oFXaIs' underdosing. Our review found consistent evidence that underdosing is often an intentional strategy; however, available studies do not demonstrate a sizeable net clinical benefit of using off-label RD oFXaIs.
Author De Ferrari, Gaetano Maria
Gibello, Maddalena
Marchionni, Niccolò
Ferri, Nicola
Corsini, Alberto
Brunetti, Enrico
Isaia, Gianluca
Poli, Daniela
Bo, Mario
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Copyright Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: journals.permissions@oup.com. 2020
Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: journals.permissions@oup.com.
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Keywords Direct oral anticoagulants
Oral anticoagulant therapy
Off-label dosing
Non-valvular atrial fibrillation
Reduced doses
Underdosing
Language English
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Bo (2021072618094098200_pvaa103-B81) 2016; 2
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Ng (2021072618094098200_pvaa103-B74) 2016; 45
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Snippet Abstract In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in...
In real-world clinical practice, underdosing, i.e. off-label use of reduced doses (RDs), of oral factor Xa inhibitors (oFXaIs) is quite common in stroke...
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SubjectTerms Administration, Oral
Anticoagulants
Atrial Fibrillation - complications
Atrial Fibrillation - diagnosis
Atrial Fibrillation - drug therapy
Cardiac arrhythmia
Drug dosages
Factor Xa Inhibitors
Humans
Off-Label Use
Stroke
Stroke - diagnosis
Stroke - etiology
Stroke - prevention & control
Title Off-label use of reduced dose direct oral factor Xa inhibitors in subjects with atrial fibrillation: a review of clinical evidence
URI https://www.ncbi.nlm.nih.gov/pubmed/32853346
https://www.proquest.com/docview/2572301934
https://www.proquest.com/docview/2438676110
Volume 7
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