Medical Uses
Qfitlia (fitusiran) is an antithrombin-directed small interfering ribonucleic acid used for routine prophylaxis to prevent or reduce the frequency of bleeding episodes in adult and pediatric patients aged 12 years and older with hemophilia A or hemophilia B with or without factor VIII or IX inhibitors.
Recommended Dosage: The recommended starting dose of Fitusiran is 50 mg once subcutaneously every two months. Dosage and/or dosing interval can be adjusted if required, to maintain AT activity between 15% to 35%. Use of this therapeutic drug is recommended under the supervision of a healthcare professional (HCP) experienced in the treatment and management of hemophilia or bleeding disorders.
Measure AT activity before initiating this treatment. Do not initiate this treatment if AT activity is <60%. After initiating this treatment, patients may continue their prior clotting factor concentrates (CFC) or bypassing agent (BPA) prophylaxis for the first 1 week of treatment. Stop CFC or BPA prophylaxis no later than 1 week after the initial dose of Fitusiran.