HER2 Breast Cancer

Trastuzumab and hyaluronidase-oysk (Herceptin Hylecta, Genentech) is indicated for subcutaneous administration in certain patients with HER2-positive early and metastatic breast cancer.

The trial evaluated margetuximab compared with trastuzumab, in combination with chemotherapy, for the treatment of HER 2-positive breast cancer.

The FDA has approved trastuzumab-pkrb (Herzuma, Celltrion) as a biosimilar to trastuzumab (Herceptin, Genentech) for the treatment of HER2-overexpressing breast cancer.

Officials with the FDA have approved talazoparib (Talzenna, Pfizer) for the treatment of HER2-negative locally advanced or metastatic breast cancer with germline BRCA (gBRCA) mutations.

Talazoparib, a poly ADP-ribose polymerase (PARP) inhibitor, is indicated for patients with known deleterious or suspected deleterious gBRCA-mutated breast cancer who are selected for the therapy based on an FDA-approved companion diagnostic.

Talazoparib is indicated for patients with known deleterious or suspected deleterious germline BRCA-mutated HER2-negative locally advanced or metastatic breast cancer.

Sequential administration of HER2+ therapy and chemotherapy did not affect survival outcomes in patients with breast cancer.