CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 2,760 enrolled / 2,760 target
Drug / intervention
Apixaban +1 moredrug
Likely dose
10 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03266783
NCT03266783Phase 4CompletedOn Track (26.9/mo)Completion was 14mo ago

Comparison of Bleeding Risk Between Rivaroxaban and Apixaban for the Treatment of Acute Venous Thromboembolism

Ottawa Hospital Research Institute·interventional·Posted Aug 30, 2017·Updated Jun 24, 2026

In Brief

A Phase 4 clinical trial evaluating Apixaban and Rivaroxaban for Venous Thromboembolism. Completed, enrolled 2,760 participants across 19 sites in 3 countries.

Detailed Summary

Apixaban and rivaroxaban have been compared to standard therapy for treatment of acute symptomatic venous thromboembolism (VTE) in randomized controlled trials (RCTs), and are both approved by Health Canada. No safety or efficacy data is available from direct head-to-head comparison of these two anticoagulants. Lawsuits in the United States over bleeding events, patient perceptions, and concerns with medication adherence are additional factors highlighting the importance of a comparison trial. This multi-center, pragmatic, prospective, randomized, open-label, blinded end-point (PROBE) trial aims to compare the safety of apixaban and rivaroxaban for the treatment of VTE.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Canada, Ireland

Timeline

Phase 4CompletedFinished
201820192020202120222023202420252026
First PostedAug 30, 2017
Enrollment StartDec 13, 2017
Primary CompletionApr 30, 2025
Study CompletionOct 15, 2025
TodayJul 2, 2026
Enrollment to primary: 7.4 yearsPosted 8.8 years ago

Arms & Interventions

Apixaban groupactive_comparator

10 mg orally (PO), twice a day (BID) for 1 week, then 5 mg PO BID for 3 months of treatment

Drug: Apixaban
Rivaroxaban groupactive_comparator

15 mg orally (PO), twice a day (BID) for 3 weeks, then 20 mg PO once a day (OD) for 3 months of treatment

Drug: Rivaroxaban

Interventions

Apixabandrug

Refer to Apixaban group

Rivaroxabandrug

Refer to Rivaroxaban group