A phase 2 clinical trial assessing the efficacy and safety of pembrolizumab and radiotherapy in patients with metastatic triple-negative breast cancer.
Alice Y HoChristopher A BarkerBrittany B ArnoldSimon N PowellZishuo I HuAyca GucalpLizza Lebron-ZapataHannah Y WenCindy KallmanAlessandro D'AgnoloZhigang ZhangJessica FlynnSamantha A DunnHeather L McArthurPublished in: Cancer (2019)
The combination of pembrolizumab and RT was found to be safe and demonstrated encouraging activity in patients with poor-prognosis, metastatic, triple-negative breast cancer who were unselected for programmed death-ligand 1 expression. Larger clinical trials of checkpoint blockade plus RT with predictive biomarkers of response are needed.