An Open-Label, Single Dose Pharmacokinetic Study of Benefix (Recombinant Factor IX) in Male Chinese Subjects With Hemophilia B

An Open-label, Single Dose Pharmacokinetic Study Of Benefix (Nonacog Alfa, Recombinant Factor Ix) In Male Chinese Subjects With Hemophilia B

The sample size of 12 male Chinese subjects are based on the CFDA requirement for a China PK study and to support the registration in China.

Inclusion Criteria:

• Male Chinese subjects 6 years or older (weight ≥20kg) with moderate to severe hemophilia B (Factor IX activity ≤2%).
• Subjects should not have received an infusion of any Factor IX products for at least 4 days before the administration of BeneFIX on Day 1.
• Subjects must be in a non-bleeding state before the administration of BeneFIX on Day 1.

Exclusion Criteria:

• Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing) disease or clinical findings at Screening.
• Diagnosed with any other bleeding disorder in addition to hemophilia B.
• Current FIX inhibitor or history of FIX inhibitor (defined as > Upper Limit of Normal (ULN) of the reporting lab).