Measuring Betrixaban Levels

There is  no assay available to measure betrixaban levels.  No "therapeutic range" has been established.  

Should an assay be available in the future:

1) Measuring the presence of betrixaban might be helpful to:

  • assure absence of drug prior to invasive procedures
  • assure absence of drug prior to use of thrombolytic therapy

2) Measuring presence of betrixaban is less likely to be useful to:

  • assess compliance
  • assess possible over-anticoagulation in cases of hemorrhage
  • assess possible under-anticoagulation in cases of treatment failure