Page 10 - PHESGO (PERTUZUMAB-TRASTUZUMAB) - Product Monograph
P. 10

4. TARGET POPULATION FOR FIXED-DOSE SC COMBINATION

               OF TRASTUZUMAB AND PERTUZUMAB



               The target populations of fixed-dose SC combination of trastuzumab and

               pertuzumab are the same as defined for PERJETA - Herceptin  in combination
                                                                                   ®
                                                                      ®
               with chemotherapy in HER2-positive BC and are therefore the same as per the
               PERJETA  label.   35,39
                         ®


                  01        Neoadjuvant treatment of HER2-positive eBC patients at high-risk
                            of recurrence (i.e. lymph node-positive or a tumor size of >2 cm).
                                                                                                    35,39

                  02        Adjuvant treatment of HER2-positive eBC patients at high-risk of
                            recurrence (at minimum lymph node-positive patients regardless
                            of HR status) without prior neoadjuvant treatment.       35,39

                            Adjuvant treatment following neoadjuvant treatment of HER2-
                  03        positive eBC patients who achieved pathological complete

                            response (i.e. neoadjuvant treatment continuation).       35,39


                  04        First-line treatment of HER2-positive mBC patients.       35,39








               5. PROPOSED MECHANISM OF ACTION FOR THE FIXED-DOSE

               SC COMBINATION OF TRASTUZUMAB AND PERTUZUMAB



               5.1. Specially formulated with hyaluronidase           39,44,45



                                        hyaluronidase

                           trastuzumab


                                      PERJETA ®








              Fixed-dose SC combination of trastuzumab and pertuzumab   Hyaluronidase is used to deliver pertuzumab and trastuzumab
              includes 2 monoclonal antibodies, with recombinant human   subcutaneously.
              hyaluronidase.
                                                                Hyaluronidase allows SC delivery of higher drug volumes.
              Fixed-dose SC combination of trastuzumab and pertuzumab is
              designed to work with trastuzumab for a dual-HER2 blockade. In   Hyaluronidase is an endoglycosidase used to increase dispersion
              preclinical models, PERJETA ®  targeted a different subdomain on the   and absorption of co-administered drugs when administered
              HER2 receptor than trastuzumab, to block dimerization with HER1,   subcutaneously.
              HER3, and HER4 receptors and provide a dual blockade of
              HER2-driven signaling pathways.

           M-AE-00000086                                                                                 10
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