Atezolizumab Extends Survival for Breast Cancer

The anti-PD-L1 drug atezolizumab produced durable responses among 10% of patients with triple-negative breast cancer in a large phase I trial presented at the American Association for Cancer Research Annual Meeting 2017. The therapy proved safe, with the highest response rates seen in women who received the drug as a first-line therapy and in those with elevated PD-L1 levels and other tumor biomarkers.