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A Study Evaluating Safety and Tolerability of YM150 Compared to Warfarin in Subjects With Atrial Fibrillation

A Phase 2, Double-Blind, Double-Dummy, Randomized, Parallel Group Dose Finding Study To Investigate the Safety and Tolerability of YM150 in Subjects With Non-Valvular Atrial Fibrillation and to Compare the Safety and Tolerability With Warfarin

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00938730
Acronym
OPAL-2
Enrollment
1280
Registered
2009-07-14
Start date
2009-06-30
Completion date
2010-09-30
Last updated
2011-01-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atrial Fibrillation

Keywords

Nonvalvular Atrial Fibrillation (NVAF), Factor Xa Inhibitor, Stroke, Thromboembolism, Transient Ischemic attack, Anticoagulants, Prevention, YM150, Warfarin

Brief summary

The purpose of this study is to investigate the optimal daily dose and dose regimen of YM150 in subjects with non-valvular atrial fibrillation (NVAF), primarily based on safety and tolerability data.

Interventions

DRUGYM150

oral

DRUGWarfarin

oral

Sponsors

Astellas Pharma Inc
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subject with paroxysmal, permanent or persistent Nonvalvular Atrial Fibrillation (NVAF) * Subject has prothrombin time international normalized ratio (INR) of 2.0 or below at the baseline visit

Exclusion criteria

* Subject has current or recent (within 12 months prior to screening) history of stroke and/or systemic embolism (including TIA) * Subject has active bleeding or any condition associated with increased risk of bleeding * Subject has NVAF secondary to other reversible disorders (e.g. thyrotoxicosis) * Subject has an indication for warfarin other than AF (including planned cardioversion) * Subject has had a diagnosis of Acute Coronary Syndrome (ACS), coronary artery bypass graft (CABG) or percutaneous transluminal coronary angioplasty (PTCA) within previous 3 months of screening * Subject has a diagnosis of left ventricular aneurysm or atrial myxoma * Subject requires use of prohibited previous and concomitant medication (i.e., thrombolytics \[such as tissue Plasminogen Activator (tPA), streptokinase\], antiplatelet agents \[such as cilostazol, clopidogrel, ticlopidine, dipyridamole\], anticoagulants \[such as vitamin K antagonists, heparin, unfractionated or low molecular weight heparin, fondaparinux, thrombin inhibitors\] and chronic use of nonsteroidal anti-inflammatory drugs \[NSAIDs\] or acetylsalicylic acid use of \>100 mg/day). (see Section 5.1.3 and Appendix 1 for details) * Subject has active infective endocarditis * Subject is planned for invasive procedures with potential for bleeding * Subject has participated in another clinical trial of an investigational drug (including placebo) or device within 30 days (or the limit set by national law, whichever is longer) of signing informed consent for the present study * Subject has participated in any YM150 clinical trials

Design outcomes

Primary

MeasureTime frame
Incidence of major and clinically relevant non-major bleeding eventsDouble-blind treatment period (variable, up to 16 months)

Secondary

MeasureTime frame
Composite and individual incidences of ischemic strokes, TIAs, systemic thrombolic events, ACS, all deathsDouble-blind treatment period (variable, up to 16 months)
Incidence of bleeding eventsDouble-blind treatment period (variable, up to 16 months)
Assessment of other safety variablesDouble blind treatment period (variable, up to 16 months)
Assessment of PK/PD variablesDouble-blind treatment period (up to week 12)
Patient Reported OutcomesDouble-blind treatment period (up to week 24)

Countries

Australia, Austria, Bulgaria, Czechia, Estonia, France, Germany, Hungary, India, Israel, Japan, Malaysia, Netherlands, Philippines, Poland, Russia, Slovakia, South Africa, South Korea, Spain, Thailand, Ukraine, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026