- Hemophilia B (FIX:C less than 2%)
- Previous treatment of at least 150 exposure days using any FIX product
- 12 years of age and older
- The patient has a currently detectable factor IX inhibitor or a history of inhibitors.
(A family history of inhibitors will not exclude the patient)
- Known hypersensitivity to protein pharmaceuticals or agents related to the test
article, e.g. hamster proteins
- Patient has a genetic coagulation disorder other than hemophilia B