ASH Clinical News May 2015 | Page 24

Latest & Greatest Dabigatran Reversal Agent Idarucizumab Granted Priority Review by the FDA The U.S. Food and Drug Administration has granted priority review to the biologics license application (BLA) for idarucizumab, which is being investigated to specifically reverse the anticoagulant effect of dabigatran in patients needing emergency intervention or experiencing an uncontrolled or life-threatening bleeding event. The idarucizumab BLA will be reviewed under Accelerated Approval and is the first review for a reversal agent for a novel oral anticoagulant (NOAC). Currently, no NOAC has an approved reversal agent. The FDA granted Breakthrough Therapy Designation for idarucizumab in June 2014. The BLA includes phase I data demonstrating idarucizumab’s potential to provide immediate reversal of the anticoagulant effect of dabigatran. In these studies, there were no clinically relevant adverse events or procoagulant effect observed after the administration of idarucizumab. Interim data from the ongoing RE-VERSE AD trial, a phase III global study investigating idarucizumab in actual clinical settings, were also included in the application. Source: Boehringer Ingelheim press release FDA Grants Priority Review to Brentuximab Vedotin Consolidation in Hodgkin Lymphoma The FDA has accepted a supplemental BLA for brentuximab vedotin for post-transplant consolidation treatment of Hodgkin lymphoma patients at high risk for relapse or progression. The FDA granted Priority Review for the application, and the Prescription Drug User Fee Act (PDUFA) target action date is August 18, 2015. The BLA submission is based on positive results from the phase III AETHERA clinical trial, which determined whether 16 cycles of brentuximab vedotin as consolidation therapy immediately following an autologous stem cell transplantation (ASCT) could extend progression-free survival (PFS) in these high-risk Hodgkin lymphoma patients. The positive results from 22 ASH Clinical News the phase III AETHERA trial were published in The Lancet in March 2015 and were presented at the 56th American Society of Hematology Annual Meeting in December 2014. In 329 patients with Hodgkin lymphoma at high risk for relapse following ASCT, brentuximab vedotin led to a significant increase in PFS – 43 months versus 24 months for patients who received placebo (hazard ratio = 0.57; p=0.001). Source: Seattle Genetics press release Scientists Trace Genomic Evolution of ALL By using genomic sequencing of leukemia cells from relapsed patients with acute lymphocytic leukemia (ALL), researchers discovered key details about how ALL cells mutate to survive chemotherapy. These findings, published in Nature Com- munications, will potentially lead to new tests to monitor children in remission and to detect signs of relapse. ALL is a leading cause of cancer deaths in children, with 15 percent of ALL patients relapsing with poor survival. In the study, researchers analyzed the genomes of cells from 20 children who had ALL that returned following treatment. Cell samples were taken at three stages – diagnosis, remission, and relapse – to better determine the mutations that drove the relapse of leukemia. N O W AVA I L A B L E F O R T H E T R E A T M E N T O F P h - N E G A T I V E R E L A P S E D / R E F R A C T O RY B - C E L L A C U T E LY M P H O B L A S T I C L E U K E M I A ( A L L ) Discover the first and only FDA-approved Bispecific CD19-directed CD3 T-cell Engager In a phase 2, open-label, multicenter, single-arm clinical trial: • The primary endpoint was the complete remission/complete remission with partial hematological recovery (CR/CRh*) rate within 2 cycles of treatment with BLINCYTO™. • Eligible patients were ≥ 18 years of age with Philadelphia chromosome-negative relapsed or refractory B-precursor ALL. • Relapsed or refractory was defined as relapsed with first remission duration of ≤ 12 months in first salvage or relapsed or refractory after first salvage therapy or relapsed within 12 months of allogeneic hematopoietic stem cell transplantation (HSCT), and had ≥ 10% blasts in bone marrow. 75.3% 41.6% (95% CI: 34.4-49.1) of R/R ALL evaluable patients achieved a CR/CRh* (n=77/185)1 (95% CI: 64.2-84.4) with CR/CRh* also had an MRD response (defined as MRD by PCR < 1 x 10-4) (n=58/77)1 39% of patients who achieved CR/CRh* went on to receive allogeneic transplant (n=30/77)1 INDICATION BLINCYTO™ is indicated for the treatment of Philadelphia chromosome-negative relapsed or refractory B-cell precursor acute lymphoblastic leukemia (ALL). This indication is approved under accelerated approval. Continued approval for this indication may be contingent upon verification of clinical benefit in subsequent trials. IMPORTANT SAFETY INFORMATION WARNING: CYTOKINE RELEASE SYNDROME and NEUROLOGICAL TOXICITIES • Cytokine Release Syndrome (CRS), which may be life-threatening or fatal, occurred in patients receiving BLINCYTO™. Interrupt or discontinue BLINCYTO™ as recommended. • Neurological toxicities, which may be severe, life-threatening or fatal, occurred in patients receiving BLINCYTO™. Interrupt or discontinue BLINCYTO™ as recommended. Contraindications BLINCYTO™ is contraindicated in patients with a known hypersensitivity to blinatumomab or to any component of the product formulation. Warnings and Precautions • Cytokine Release Syndrome (CRS): Life-threatening or fatal CRS occurred in patients receiving BLINCYTO™. Infusion reactions have occurred and may be clinically indistinguishable from manifestations of CRS. Closely monitor patients for signs and symptoms of serious events such as pyrexia, headache, nausea, asthenia, hypotension, increased alanine aminotransferase (ALT), increased aspartate aminotransferase (AST), increased total bilirubin (TBILI), disseminated intravascular coagulation (DIC), capillary leak syndrome (CLS), and hemophagocytic lymphohistiocytosis/macrophage activation syndrome (HLH/MAS). Interrupt or discontinue BLINCYTO™ as outlined in the Prescribing Information (PI).