Breast cancer: a front-runner when it comes to the development of novel therapeutic strategies. With the advent of newer targeted- and immunotherapies, oncologists have an increment of options to offer their patients. The American Society of Clinical Oncology’s (ASCO) 2019 Breast Cancer track offered an extensive look at the latest advancements and updates from on-going trials covering the various subtypes of breast cancer.
On 28 February 2019, the FDA approved the subcutaneous formulation trastuzumab/hyaluronidase-oysk (Herceptin Hylecta®, Genentech) for the treatment of human epidermal growth factor receptor 2 (HER2)‑overexpressing breast cancer.
On 18 January 2019, the FDA approved the Herceptin®-biosimilar Ontruzant® (trastuzumab-dttb, Samsung BioEpsis), a HER2/neu receptor antagonist, for patients with HER2-overexpressing (HER2+) breast cancer in the adjuvant and metastatic setting, and in metastatic HER2+ gastric cancer patients. Ontruzant® was approved as biosimilar, not as an interchangeable product.
On 14 December 2018, the FDA approved the Herceptin®-biosimilar Herzuma® (trastuzumab-pkrb, Celltrion), a HER2/neu receptor antagonist, for patients with HER2-overexpressing (HER2+) breast cancer. Herzuma® was approved as biosimilar, not as an interchangeable product.
On 1 December 2017, the FDA approved Ogivri® (trastuzumab-dkst, Mylan) as a biosimilar to Herceptin® (trastuzumab, Genentech) for the treatment of patients with HER2-overexpressing breast or metastatic gastric or gastroesophageal junction adenocarcinoma.