Effect of apixaban compared with warfarin on coagulation markers in atrial fibrillation.

dc.contributor.author

Christersson, Christina

dc.contributor.author

Wallentin, Lars

dc.contributor.author

Andersson, Ulrika

dc.contributor.author

Alexander, John H

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Alings, Marco

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De Caterina, Raffaele

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Gersh, Bernard J

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Granger, Christopher B

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Halvorsen, Sigrun

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Hanna, Michael

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Huber, Kurt

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Hylek, Elaine M

dc.contributor.author

Lopes, Renato D

dc.contributor.author

Oh, Byung-Hee

dc.contributor.author

Siegbahn, Agneta

dc.date.accessioned

2021-05-10T18:10:09Z

dc.date.available

2021-05-10T18:10:09Z

dc.date.issued

2019-02

dc.date.updated

2021-05-10T18:10:07Z

dc.description.abstract

Objectives

Compare the effect of apixaban and warfarin on coagulation and primary haemostasis biomarkers in atrial fibrillation (AF).

Methods

The biomarker substudy from the Apixaban for Reduction in Stroke and Other Thromboembolic Events in Atrial Fibrillation trial included 4850 patients with AF randomised to treatment with apixaban or warfarin. Sixty per cent of patients used vitamin K antagonist (VKA) within 7 days before randomisation. Prothrombin fragment 1+2 (F1+2), D-dimer, soluble CD40 ligand (sCD40L) and von Willebrand factor (vWF) antigen were analysed at randomisation and after 2 months of study treatment.

Results

In patients not on VKA treatment at randomisation, F1+2 and D-dimer levels were decreased by 25% and 23%, respectively, with apixaban, and by 59% and 38%, respectively, with warfarin (p<0.0001 for treatment differences for both). In patients on VKA at randomisation, F1+2 and D-dimer levels increased by 41% and 10%, respectively, with apixaban and decreased by 37% and 11%, respectively, with warfarin (p<0.0001 for treatment differences for both). sCD40L levels were slightly increased at 2 months, regardless of VKA or randomised treatment. Apixaban and warfarin also both reduced vWF antigen regardless of VKA treatment. The efficacy (stroke) and safety (bleeding) of apixaban compared with warfarin was similar irrespectively of biomarker levels at 2 months.

Conclusions

Treatment with apixaban compared with warfarin for stroke prevention in patients with AF was associated with less reduction in thrombin generation and fibrin turnover. This effect of apixaban could contribute to the clinical results where apixaban was superior to warfarin both in stroke prevention and in reducing bleeding risk.

Trial registration number

NCT00412984.
dc.identifier

heartjnl-2018-313351

dc.identifier.issn

1355-6037

dc.identifier.issn

1468-201X

dc.identifier.uri

https://hdl.handle.net/10161/22868

dc.language

eng

dc.publisher

BMJ

dc.relation.ispartof

Heart (British Cardiac Society)

dc.relation.isversionof

10.1136/heartjnl-2018-313351

dc.subject

Humans

dc.subject

Atrial Fibrillation

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Hemorrhage

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Pyrazoles

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Pyridones

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Warfarin

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Thrombin

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Fibrin

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Fibrin Fibrinogen Degradation Products

dc.subject

Anticoagulants

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Treatment Outcome

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Risk Assessment

dc.subject

Blood Coagulation

dc.subject

Aged

dc.subject

Middle Aged

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Female

dc.subject

Male

dc.subject

Stroke

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Biomarkers

dc.title

Effect of apixaban compared with warfarin on coagulation markers in atrial fibrillation.

dc.type

Journal article

duke.contributor.orcid

Alexander, John H|0000-0002-1444-2462

duke.contributor.orcid

Granger, Christopher B|0000-0002-0045-3291

duke.contributor.orcid

Lopes, Renato D|0000-0003-2999-4961

pubs.begin-page

235

pubs.end-page

242

pubs.issue

3

pubs.organisational-group

School of Medicine

pubs.organisational-group

Duke Clinical Research Institute

pubs.organisational-group

Medicine, Cardiology

pubs.organisational-group

Duke

pubs.organisational-group

Institutes and Centers

pubs.organisational-group

Medicine

pubs.organisational-group

Clinical Science Departments

pubs.organisational-group

Nursing

pubs.organisational-group

School of Nursing

pubs.publication-status

Published

pubs.volume

105

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