Which blood thinner is safer? major trial pits rivaroxaban against apixaban
NCT ID NCT04642430
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two blood thinners, rivaroxaban and apixaban, to see which causes less bleeding in people with atrial fibrillation (an irregular heartbeat). About 3,000 adults who need to start blood thinners will take one of the two drugs. The goal is to find which medication offers the best balance of stroke prevention and safety.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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CHU de Quebec - Université Laval
NOT_YET_RECRUITINGLaval, Quebec, Canada
Contact
Contact Email: •••••@•••••
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CISSS de l'Outaouais
RECRUITINGGatineau, Quebec, J8T 4J3, Canada
Contact Email: •••••@•••••
Contact
Contact Email: •••••@•••••
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Ciusss Nim
RECRUITINGMontreal, Quebec, H3L 1K5, Canada
Contact Email: •••••@•••••
Contact Email: •••••@•••••
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Kingston General Hospital
RECRUITINGKingston, Ontario, Canada
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QEII Health Science Centre
RECRUITINGHalifax, Nova Scotia, Canada
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The Ottawa Hospital - General Campus
RECRUITINGOttawa, Ontario, K1H 8L6, Canada
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Email: •••••@•••••
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University Ottawa Heart Institute
RECRUITINGOttawa, Ontario, Canada
Contact
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Victoria Cardiac Arrhythmia Trials
RECRUITINGVictoria, British Columbia, V8Z 0B9, Canada
Contact
Contact Email: •••••@•••••
Contact Email: •••••@•••••