ASH Clinical News ACN_5.6_Full_Issue_Digital | Page 39

CLINICAL NEWS participants experienced infusion-related systemic or neurologic adverse events – which are commonly reported with CAR T-cell infusions. “Infusion of autologous multiTAA- targeted T cells … has been safe,” they concluded, “and despite concerns that endogenous T cells directed against shared/cancer testis antigens would be of insufficient affinity to produce prolonged benefit, [our cells] were able to induce durable CRs.” The findings of this study were limited by the small study population and single- center design. The authors report relationships with Marker Therapeutics, which sponsored the study. REFERENCE Carrum G, Lulla P, Tzannou I, et al. Targeting lymphomas using non- engineered, multi-antigen-specific T cells. Abstract #24. Presented at the Transplantation & Cellular Therapy Meetings of ASBMT and CIBMTR, February 20, 2019; Houston, TX. Beta-Thalassemia Gene Therapy Continues to Show Efficacy in Longer-Term Follow-up Updated results from the phase I/II HGB- 204 and HGB-207 trials indicated that several patients with severe, transfusion- dependent beta-thalassemia have remained 70+ Year Commitment to the Hematology Community Baxalta and Shire Are Now Takeda FEIBA Indications and Detailed Important Risk Information WARNINGS AND PRECAUTIONS (continued) Safety and effi cacy of FEIBA for breakthrough bleeding in patients receiving emicizumab has not been established. Cases of thrombotic microangiopathy (TMA) were reported in a clinical trial where subjects received FEIBA as part of a treatment regimen for breakthrough bleeding following emicizumab treatment. Consider the benefi ts and risks with FEIBA if considered required for patients receiving emicizumab prophylaxis. If treatment with FEIBA is required for patients receiving emicizumab, the hemophilia treating physician should closely monitor for signs and symptoms of TMA. In FEIBA clinical studies TMA has not been reported. Hypersensitivity and allergic reactions, including severe anaphylactoid Detailed Important Risk Information for FEIBA reactions, can occur. Symptoms include urticaria, angioedema, gastrointestinal manifestations, bronchospasm, and hypotension. WARNING: EMBOLIC AND THROMBOTIC EVENTS Reactions can be severe and systemic (e.g., anaphylaxis with urticaria • Thromboembolic events have been reported during post-marketing and angioedema, bronchospasm, and circulatory shock). Other infusion surveillance following infusion of FEIBA, particularly following the reactions, such as chills, pyrexia, and hypertension have also been administration of high doses (above 200 units per kg per day) reported. If signs and symptoms of severe allergic reactions occur, and/or in patients with thrombotic risk factors. immediately discontinue FEIBA and provide appropriate supportive care. • Monitor patients receiving FEIBA for signs and symptoms of Because FEIBA is made from human plasma it may carry a risk of thromboembolic events. transmitting infectious agents, e.g., viruses, the variant Creutzfeldt- Jakob disease (vCJD) agent and, theoretically, the Creutzfeldt-Jakob CONTRAINDICATIONS disease (CJD) agent. FEIBA is contraindicated in patients with: FEIBA contains blood group isohemagglutinins (anti-A and anti-B). • History of anaphylactic or severe hypersensitivity reactions to Passive transmission of antibodies to erythrocyte antigens, e.g., A, B, D, FEIBA or any of its components, including factors of the kinin may interfere with some serological tests for red cell antibodies, such as generating system antiglobulin test (Coombs test). • Disseminated intravascular coagulation (DIC) ADVERSE REACTIONS • Acute thrombosis or embolism (including myocardial infarction) Most frequently reported adverse reactions observed in >5% of subjects WARNINGS AND PRECAUTIONS in the prophylaxis trial were anemia, diarrhea, hemarthrosis, hepatitis B Thromboembolic events (including venous thrombosis, pulmonary surface antibody positive, nausea, and vomiting. embolism, myocardial infarction, and stroke) can occur, particularly Serious adverse reactions seen are hypersensitivity reactions and following the administration of high doses (>200 units/kg/day) and/or thromboembolic events, including stroke, pulmonary embolism and in patients with thrombotic risk factors. deep vein thrombosis. Patients with DIC, advanced atherosclerotic disease, crush injury, DRUG INTERACTIONS septicemia, or concomitant treatment with recombinant factor VIIa Consider possibility of thrombotic events when systemic antifi brinolytics have an increased risk of developing thrombotic events due to such as tranexamic acid and aminocaproic acid are used with FEIBA. circulating tissue factor or predisposing coagulopathy. Potential No adequate and well-controlled studies of combined or sequential use benefi t of treatment should be weighed against potential risk of these of FEIBA and recombinant factor VIIa, antifi brinolytics, or emicizumab, thromboembolic events. have been conducted. Use of antifi brinolytics within approximately 6 to Infusion should not exceed a single dose of 100 units/kg and daily doses 12 hours after FEIBA is not recommended. of 200 units/kg. Maximum injection or infusion rate must not exceed Clinical experience from an emicizumab clinical trial suggests that a 2 units/kg/minute. Monitor patients receiving >100 units/kg for the potential drug interaction may exist with emicizumab. development of DIC, acute coronary ischemia and signs and symptoms of other thromboembolic events. If clinical signs or symptoms occur, such Please see accompanying FEIBA Brief Summary of full Prescribing Information, including BOXED WARNING on Embolic and as chest pain or pressure, shortness of breath, altered consciousness, Thrombotic Events. vision, or speech, limb or abdomen swelling and/or pain, discontinue FEIBA and initiate appropriate diagnostic and therapeutic measures. Indications for FEIBA FEIBA is an Anti-Inhibitor Coagulant Complex indicated for use in hemophilia A and B patients with inhibitors for: • Control and prevention of bleeding episodes • Perioperative management • Routine prophylaxis to prevent or reduce the frequency of bleeding episodes FEIBA is not indicated for the treatment of bleeding episodes resulting from coagulation factor defi ciencies in the absence of inhibitors to coagulation factor VIII or coagulation factor IX. transfusion-free up to four years after treatment with LentiGlobin gene therapy. Usanarat Anurathapan, MD, from Ramat- hibodi Hospital and Mahidol University in