A Phase 1b Study of Chemo-Immunotherapy with Pegylated Liposomal Doxorubicin and Pembrolizumab in Estrogen Receptor Positive Metastatic Breast Cancer
June 2026
in “
Cancer Research Communications
”
Studysummary In this phase 1B study, patients with ER-positive/HER2-negative metastatic breast cancer receiving combined pegylated liposomal doxorubicin and pembrolizumab had a disease control rate of 67% with responses lasting a median of 11 months; the treatment was well tolerated and showed potential for extended use.
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