Evidence map›Paper›PMID 30209126›Full record

Trial reportHeart (British Cardiac Society)2019

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

Christina Christersson, Lars Wallentin, Ulrika Andersson, John H Alexander, Marco Alings, Raffaele De Caterina, Bernard J Gersh, Christopher B Granger, Sigrun Halvorsen, Michael Hanna and 5 more

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Heart (British Cardiac Society), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00412984 (A Phase 3, Active), which is not on this map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.4field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00412984 phase3completednot on this map

A Phase 3, Active (Warfarin) Controlled, Randomized, Double-Blind, Parallel Arm Study to Evaluate Efficacy and Safety of Apixaban in Preventing Stroke and Systemic Embolism in Subjects With Nonvalvular Atrial Fibrillation

TypeinterventionalSponsorBristol-Myers SquibbRan2006 to 2011Enrolled20,976ConditionsAtrial Fibrillation, Atrial FlutterArmswarfarin, apixaban
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 30 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 11 institutions in 7 countries.

Christina ChristerssonDepartment of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden.
Lars WallentinDepartment of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden.
Ulrika AnderssonUppsala Clinical Research Center (UCR), Uppsala University, Uppsala, Sweden.
John H AlexanderMedical Duke Clinical Research Institute, Duke University, Medical Center, Durham, North Carolina, USA.
Marco AlingsWorking Group on Cardiovascular Research, Utrecht, The Netherlands.
Raffaele De CaterinaGabriele d'Annunzio University, Chieti, and Gabriele Monasterio Foundation, Pisa, Italy.
Bernard J GershMayo Clinic College of Medicine, Rochester, Minnesota, USA.
Christopher B GrangerMedical Duke Clinical Research Institute, Duke University, Medical Center, Durham, North Carolina, USA.
Sigrun HalvorsenDepartment of Cardiology B, Oslo University Hospital and University of Oslo, Oslo, Norway.
Michael HannaBristol-Myers Squibb, Princeton, New Jersey, USA.
Kurt Huber3rd Department of Medicine, Cardiology and Intensive Care Medicine, Wilhelminen Hospital, and Sigmund Freud University, Medical School, Vienna, Austria.
Elaine M HylekBoston University Medical Center, Boston, Massachusetts, USA.
Renato D LopesMedical Duke Clinical Research Institute, Duke University, Medical Center, Durham, North Carolina, USA.
Byung-Hee OhSeoul National University Hospital, Seoul, Korea.
Agneta SiegbahnUppsala Clinical Research Center (UCR), Uppsala University, Uppsala, Sweden.
Uppsala University · SEDuke Medical Center · USBoston Medical Center · USBristol-Myers Squibb (United States) · USClinical Research Institute · USFondazione Toscana Gabriele Monasterio · ITMayo Clinic · USOslo University Hospital · NOSeoul National University Hospital · KRUtrecht University · NLWilhelminen Hospital · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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

methodsThe 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.

resultsIn 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.

conclusionsTreatment 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.

Indexed as

Atrial FibrillationBlood CoagulationHemorrhagePyrazolesPyridonesStrokeWarfarinAgedAnticoagulantsBiomarkersFemaleFibrinFibrin Fibrinogen Degradation ProductsHumansMaleMiddle AgedAnticoagulantsapixabanBiomarkersFibrinFibrin Fibrinogen Degradation Productsfibrin fragment DPyrazolesPyridonesThrombinWarfarinatrial fibrillation

Identifiers

PMID30209126
PMCPMC6388910
OpenAlexW2891056903

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.