Clinical and Economic Outcomes of Oral Anticoagulants in Non-valvular Atrial Fibrillation
ARISTOPHANES
Real-World Comparative Effectiveness Research and Related Economic Outcomes Among Nonvalvular Atrial Fibrillation Patients Using Oral Anti-coagulants
1 other identifier
observational
466,991
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jun 2016
Longer than P75 for all trials
1 active site
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
CompletedFirst Submitted
Initial submission to the registry
March 17, 2017
CompletedFirst Posted
Study publicly available on registry
March 22, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 26, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
March 8, 2023
CompletedJune 25, 2025
June 1, 2025
6.7 years
March 17, 2017
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
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
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.
PMID: 32370854DERIVEDLip 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.
PMID: 30571400DERIVEDLi 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.
PMID: 29373602DERIVED
Related Links
Study Officials
- STUDY DIRECTOR
Bristol-Myers Squibb
Bristol-Myers Squibb
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