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Clinical trialNCT00742859CompletedPhase 2Interventional

Phase 2 Study of the Safety, Tolerability and Pilot Efficacy of Oral Factor Xa Inhibitor Betrixaban Compared to Warfarin

SponsorPortola PharmaceuticalsEnrollment508Atrial Fibrillation
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

21 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Canada
  • Portola Investigational Site

    Longueuil, Quebec, Canada

  • Portola Investigational Site

    Montreal, Quebec, Canada

United States
  • Portola Investigational Site

    Anaheim, California, United States

  • Portola Investigational Site

    Colorado Springs, Colorado, United States

  • Portola Investigational Site

    Melbourne, Florida, United States

  • Portola Investigational Site

    Miami, Florida, United States

  • Portola Investigational Site

    Ormond Beach, Florida, United States

  • Portola Investigational Site

    Pensacola, Florida, United States

  • Portola Investigational Site

    Port Charlotte, Florida, United States

  • Portola Investigational Site

    Aurora, Illinois, United States

  • Portola Investigational Site

    Auburn, Maine, United States

  • Portola Investigational Site

    Columbia, Maryland, United States

  • Portola Investigational Site

    Salisbury, Maryland, United States

  • Portola Investigational Site

    Towson, Maryland, United States

  • Portola Investigational Site

    Tupelo, Mississippi, United States

  • Portola Investigational Site

    St Louis, Missouri, United States

  • Portola Investigational Site

    Poughkeepsie, New York, United States

  • Portola Investigational Site

    Hillsboro, Oregon, United States

  • Portola Investigational Site

    Wynnewood, Pennsylvania, United States

  • Portola Investigational Site

    Rapid City, South Dakota, United States

  • Portola Investigational Site

    Norfolk, Virginia, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
31 Oct 2008
Primary completion
31 Aug 2009
Completion
30 Nov 2009
Last update posted
7 Aug 2023
Registered enrollment
508
Registry id
NCT00742859

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.