Key clinical point: Pembrolizumab plus eribulin shows activity in patients with heavily pretreated, hormone-receptor–positive (HR+), human epidermal growth factor receptor 2 ( HER2)-negative, locally recurrent, or metastatic breast cancer.
Major finding: The clinical benefit rate was 56.8%, and the objective response rate was 40.9%. The median progression-free survival was 6.0 months. The serious adverse event rate was 31.8%, and 25.0% of patients experienced immune-related adverse events.
Study details: Phase 2 study of 44 previously treated patients with HR+, HER-negative, inoperable, locally recurrent breast cancer received pembrolizumab plus eribulin.
Disclosures: The study was supported by MSD Spain. Some of the authors declared receiving consulting fees, honoraria, travel expenses and/or research funding from various sources.
Source: Pérez-García JM et al. Eur J Cancer. 2021 Mar 29. doi: 10.1016/j.ejca.2021.02.028.