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CompletedNCT00938730OPAL-2Updated Jan 20, 2011

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

A Phase 2 interventional study of YM150 and Warfarin in Atrial Fibrillation, sponsored by Astellas Pharma Inc. Completed at 170 sites in 23 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-01-20.

Sponsored by Astellas Pharma Inc · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
1,280
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study 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.

02

Conditions studied

  • Atrial Fibrillation

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Keywords

  • Nonvalvular Atrial Fibrillation (NVAF)
  • Factor Xa Inhibitor
  • Stroke
  • Thromboembolism
  • Transient Ischemic attack
  • Anticoagulants
  • Prevention
  • YM150
  • Warfarin
03

In context

Atrial Fibrillation

3,870 studies on the registry are indexed under Atrial Fibrillation; 924 are open to participants now.

This study's enrollment of 1,280 is above the median of 144 across 2,380 interventional studies indexed under Atrial Fibrillation.

Browse Atrial Fibrillation studies →

Lead sponsor

Astellas Pharma Inc is the lead sponsor of 512 studies on the registry; 4 are open to participants now.

Of its 27 completed or terminated interventional studies of FDA-regulated products, 19 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts 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

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
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,280 participants (actual)

Study arms

  • Experimental
    1. YM150, Dose W, twice daily

    Drug: YM150

  • Experimental
    2. YM150, Dose X, once daily

    Drug: YM150

  • Experimental
    3. YM150, Dose X, twice daily

    Drug: YM150

  • Experimental
    4. YM150, Dose Y once daily

    Drug: YM150

  • Experimental
    5. YM150, Dose Y twice daily

    Drug: YM150

  • Experimental
    6. YM150, Dose Z, once daily

    Drug: YM150

  • Active comparator
    7. Warfarin

    Drug: Warfarin

Interventions

  • DrugYM150

    oral

  • DrugWarfarin

    oral

06

What researchers measure

Primary outcomes

  1. Incidence of major and clinically relevant non-major bleeding events

    Time frame: Double-blind treatment period (variable, up to 16 months)

Secondary outcomes

  1. Composite and individual incidences of ischemic strokes, TIAs, systemic thrombolic events, ACS, all deaths

    Time frame: Double-blind treatment period (variable, up to 16 months)

  2. Incidence of bleeding events

    Time frame: Double-blind treatment period (variable, up to 16 months)

  3. Assessment of other safety variables

    Time frame: Double blind treatment period (variable, up to 16 months)

  4. Assessment of PK/PD variables

    Time frame: Double-blind treatment period (up to week 12)

  5. Patient Reported Outcomes

    Time frame: Double-blind treatment period (up to week 24)

07

Study locations

170 sites
  • Auchenflower, 4066, Australia
  • Caboolture, 4510, Australia
  • Kippa Ring, 4021, Australia
  • Victoria, 3181, Australia
  • Wien, 1100, Austria
  • Wien, 1160, Austria
  • Dimitrovgrad, 6400, Bulgaria
  • Pleven, 5800, Bulgaria
  • Sofia, 1202, Bulgaria
  • Sofia, 1309, Bulgaria
  • Sofia, 1407, Bulgaria
  • Sofia, 1505, Bulgaria
  • Sofia, 1606, Bulgaria
  • Besenov, 25630, Czech Republic
  • Havirov-mesto, 73601, Czech Republic
  • Prague, 13, Czech Republic
  • Tabor, 2000, Czech Republic
  • Usti Nad Labem, 40113, Czech Republic
  • Narva, 20307, Estonia
  • Tallinn, 10138, Estonia
  • Tallinn, 10617, Estonia
  • Tartu, 51014, Estonia
  • Paris, 75015, France
  • Bad Nauheim, 61231, Germany
  • Berlin, 10115, Germany
  • Berlin, 10117, Germany
  • Berlin, 10367, Germany
  • Darmstadt, 64283, Germany
  • Dresden, 1307, Germany
  • Hagen, 58099, Germany
  • Kassel, 34121, Germany
  • Mainz, 55116, Germany
  • Mannheim, 68169, Germany
  • Markkleeberg, 04416, Germany
  • Balatonfured, H-8230, Hungary
  • Budapest, H-1134, Hungary
  • Debrecen, H-4030, Hungary
  • Mosonmagyarovar, H-9200, Hungary
  • Nyiregyhaza, H-4400, Hungary
  • Szekesfehervar, H-8000, Hungary
  • Ahmedabad, 380054, India
  • Bangalore, 560034, India
  • Bangalore, 560052, India
  • Bangalore, 560053, India
  • Hyderabaad, 500036, India
  • Kolkatta, 700054, India
  • Madurai, 625107, India
  • Nagpur, 440012, India
  • Nashik, 42202, India
  • Nellore, 524003, India
  • Pune, 411001, India
  • Pune, 411004, India
  • Nahariya, 22100, Israel
  • Nazareth, 16100, Israel
  • Rehovot, 76100, Israel
  • Asahikawa, 078-8214, Japan
  • Atsugi, 243-8550, Japan
  • Bunkyo-ku, 113-8603, Japan
  • Daito, 574-0074, Japan
  • Fujisawa, 251-8550, Japan
  • Funabashi, 274-8503, Japan
  • Hachioji, 193-0098, Japan
  • Higashiibaraki-gun, 311 3193, Japan
  • Hiroshima, Japan
  • Kanazawa, 920 8650, Japan
  • Kasaoka, 714-0043, Japan
  • Kishiwada, 596-8522, Japan
  • Kitamoto, 364-8501, Japan
  • Kiyose, 204 8585, Japan
  • Kobe, 651-1145, Japan
  • Meguro-ku, 153-8515, Japan
  • Morioka, 020-8505, Japan
  • Nankoku, 783-8509, Japan
  • Sapporo, 060-0011, Japan
  • Sapporo, 063 0005, Japan
  • Sendai, 983 8520, Japan
  • Shimajiri-gun, 901-0496, Japan
  • Shinjyuku-ku, 162-8543, Japan
  • Shizuoka, 421-0117, Japan
  • Toyama, 939-8511, Japan
  • Wako, 351 0102, Japan
  • Yokohama, 227-0046, Japan
  • Busan, 603-175, Korea, Republic of
  • Gwangju, 501-757, Korea, Republic of
  • In Cheon, 405-760, Korea, Republic of
  • Seoul, 120-752, Korea, Republic of
  • Seoul, 137-701, Korea, Republic of
  • Seoul, 138-736, Korea, Republic of
  • Seoul, 158-710, Korea, Republic of
  • Kuala Lumpur, 50586, Malaysia
  • Selangor Darul Ehsan, 47500, Malaysia
  • AD Delft, 2625, Netherlands
  • AE Roosendaal, 4708, Netherlands
  • BC Amsterdam, 1091, Netherlands
  • Iloilo, 5000, Philippines
  • Bytom, 41-902, Poland
  • Gdynia, 81-423, Poland
  • Gdynia, 81-472, Poland
  • Katowice, 40-635, Poland
  • Kielce, 25-735, Poland

Showing the first 100 of 170 sites across 23 countries.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 20, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00938730
Lead sponsor
Astellas Pharma Inc
First posted
Jul 14, 2009
Start date
Jun 2009
Primary completion
Sep 2010
Completion
Sep 2010
Last update
Jan 20, 2011

Study contacts

Use Central Contact
study chair · Astellas Pharma Europe B.V.

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2011. You cannot join it, but the record below documents what was studied.

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