BRACELET-1 study results show improved overall survival (OS) and progression-free survival (PFS) when combining pelareorep with paclitaxel for HR-positive, HER2-negative advanced or metastatic breast cancer patients. The median OS was not reached with pelareorep/paclitaxel vs 18.2 months with paclitaxel alone, and the median PFS was 12.1 months vs 6.4 months. The overall response rate (ORR) was 37.5% with pelareorep/paclitaxel vs 13.3% with paclitaxel alone. These findings support further development of pelareorep in clinical settings.