NCIt definition : A concentrate of human blood coagulation factor IX derived from pooled human plasma
from donors, that can be used to treat hemophilia B (congenital factor IX deficiency;
Christmas disease). Upon intravenous administration, coagulation factor IX human replaces
missing factor IX and may normalize the activated partial thromboplastin time (aPTT),
increase blood clotting, and reduce and control bleeding episodes.;