NCT03087487

Brief Summary

The primary objectives of this study are to compare the risk of major bleeding and stroke/systemic embolism (SE) events among oral anticoagulant (OAC)-naïve non-valvular atrial fibrillation (NVAF) patients initiating OAC warfarin or apixaban or dabigatran or rivaroxaban treatment.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
466,991

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2016

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2016

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

March 17, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 22, 2017

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 26, 2023

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 8, 2023

Completed
Last Updated

June 25, 2025

Status Verified

June 1, 2025

Enrollment Period

6.7 years

First QC Date

March 17, 2017

Last Update Submit

June 24, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Time to first major bleeding event

    Up to 33 months

  • Time to first stroke/systemic embolism (SE) event

    Up to 33 months

Secondary Outcomes (3)

  • Major bleeding-related medical costs

    Up to 33 months

  • Stroke/SE-related medical costs

    Up to 33 months

  • All-cause Healthcare costs

    Up to 33 months

Study Arms (4)

NVAF patients on Warfarin

NVAF patients newly initiated with Warfarin. Non-Interventional.

NVAF patients on Apixaban

NVAF patients newly initiated on Apixaban. Non-Interventional.

NVAF patients on Dabigatran

NVAF patients newly initiated with Dabigatran. Non-Interventional.

NVAF patients on Rivaroxaban

NVAF patients newly initiated with Rivaroxaban. Non-Interventional.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

NVAF patients who were initiators of warfarin or apixaban or dabigatran or rivaroxaban treatment from 01-Jan-2013 through 30-Sep-2015. All patients who have at least 1 year of baseline data available and no prior OAC use will be included in this study.

You may qualify if:

  • Had 1 or more pharmacy claim for apixaban or warfarin or dabigatran or rivaroxaban during the identification period (01-Jan-2013 to 30-Sep-2015). The first OAC pharmacy claim date during the identification period will be designated as the index date
  • Patients 18 years old or older as of the index date
  • At least 1 diagnosis of atrial fibrillation prior to or on index date, identified by any medical claim
  • At least 12 months of baseline period prior to index date with continuous enrollment

You may not qualify if:

  • Evidence of valvular heart disease, transient atrial fibrillation, venous thromboembolism during the 12-month baseline period or on the index date
  • Evidence of pregnancy during the study period
  • Had a pharmacy claim for warfarin, apixaban, dabigatran, rivaroxaban, or edoxaban during the 12-month baseline period
  • Had more than 1 oral anticoagulant claim on the index date

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Local Institution

Ann Arbor, Michigan, 48104, United States

Location

Related Publications (3)

  • Lip GYH, Keshishian AV, Kang AL, Li X, Dhamane AD, Luo X, Balachander N, Rosenblatt L, Mardekian J, Nadkarni A, Pan X, Di Fusco M, Garcia Reeves AB, Yuce H, Deitelzweig SB. Effectiveness and Safety of Oral Anticoagulants in Patients With Nonvalvular Atrial Fibrillation and Diabetes Mellitus. Mayo Clin Proc. 2020 May;95(5):929-943. doi: 10.1016/j.mayocp.2019.05.032.

  • Lip GYH, Keshishian A, Li X, Hamilton M, Masseria C, Gupta K, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Baser O, Deitelzweig S. Effectiveness and Safety of Oral Anticoagulants Among Nonvalvular Atrial Fibrillation Patients. Stroke. 2018 Dec;49(12):2933-2944. doi: 10.1161/STROKEAHA.118.020232.

  • Li X, Keshishian A, Hamilton M, Horblyuk R, Gupta K, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Lip GYH, Deitelzweig S. Apixaban 5 and 2.5 mg twice-daily versus warfarin for stroke prevention in nonvalvular atrial fibrillation patients: Comparative effectiveness and safety evaluated using a propensity-score-matched approach. PLoS One. 2018 Jan 26;13(1):e0191722. doi: 10.1371/journal.pone.0191722. eCollection 2018.

Related Links

Study Officials

  • Bristol-Myers Squibb

    Bristol-Myers Squibb

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 17, 2017

First Posted

March 22, 2017

Study Start

June 1, 2016

Primary Completion

February 26, 2023

Study Completion

March 8, 2023

Last Updated

June 25, 2025

Record last verified: 2025-06

Locations