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The FDA has accepted a biologics license application (BLA) for sacituzumab govitecan as a treatment for patients with metastatic triple-negative breast cancer (TNBC) who have received at least 2 prior therapies for metastatic disease, according to a statement from the company developing the antibody-drug conjugate (ADC), Immunomedics.

The FDA has granted tucatinib a breakthrough therapy designation for use in combination with trastuzumab (Herceptin) and capecitabine (Xeloda) for the treatment of patients with unresectable locally advanced or metastatic HER2-positive breast cancer, including patients with brain metastases, who had prior trastuzumab, pertuzumab (Perjeta), and ado-trastuzumab emtansine (T-DM1; Kadcyla).

Residual cancer burden (RCB) after neoadjuvant chemotherapy has been shown to be an accurate long-term predictor of disease recurrence and survival across all breast cancer subtypes, according to data from a large meta-analysis presented at the 2019 San Antonio Breast Cancer Symposium.

A durvalumab (Imfinzi)-based neoadjuvant regimen induced a pathologic complete response (pCR) rate of 44% in patients with triple-negative breast cancer (TNBC), according to results of a phase I/II study presented in a poster at the 2019 San Antonio Breast Cancer Symposium.

Real-world clinical practice results for frontline palbociclib (Ibrance) indicate that the positive progression-free survival (PFS) data previously reported with the CDK4/6 inhibitor in the pivotal PALOMA-2 trial would likely translate to an overall survival (OS) benefit in patients with HR-positive/HER2-negative metastatic breast cancer.

Resistance to aromatase inhibitors (AIs) is a growing concern in patients with advanced hormone receptor (HR)–positive, HER2-negative breast cancer, said Hope S. Rugo, MD, FASCO, who added that although fulvestrant (Faslodex) has shown some activity in patients who develop ESR1 mutations, more effective treatment options are needed.