Europe Grants Orphan Drug Status to CB 2679d to Prevent Hemophilia B Bleeding Episodes
European regulators have granted orphan drug status to CB 2679d, a hemophilia B therapy that Catalyst Biosciences developed to prevent bleeding episodes. The therapy, known as ISU304 in South Korea, prevents bleeding by increasing hemophilia B patients’ level of a blood protein called Factor IX, which is deficient in the disease.