Safety concerns limit the success of HER2-targeting antibody-drug conjugates (ADCs) for the treatment of HER2-postive breast cancer. Here, the authors present a phase 1a/b trial reporting the safety and preliminary efficacy of FS-1502, an anti-HER2 ADC with a cancer-selective cleavable linker, for the treatment of HER2-positive metastatic breast cancer.
- Qiao Li
- Ying Cheng
- Binghe Xu