By: Tamara Yunusova, Senior Staff Editor – After a lengthy fifteen-year hiatus in recombinant drug approvals, FDA-approved Recombinant Coagulation Factor IX (Rixubis) has mounted to the forefront of Hemophilia B drug therapy. The recombinant coagulation factor gained orphan drug approval on June 26, 2013 for routine prophylaxis, control of bleeding episodes, and perioperative management in…