Sacituzumab Tirumotecan Shows Sustained Overall Survival Benefit in Advanced Triple-Negative Breast Cancer
The OptiTROP-Breast01 trial, a multicenter, randomized, open-label, phase 3 study, has provided further evidence supporting sacituzumab tirumotecan (sac-TMT) as an effective treatment for patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC). Led by Binghe Xu, MD, PhD, from the National Cancer Center in Beijing, China, the trial enrolled 263 patients who had undergone at least two prior systemic therapies. Patients were randomized to receive either sac-TMT or single-agent chemotherapy. The final overall survival (OS) analysis, with a median follow-up of 29.4 months, demonstrated a median OS of 14.7 months for the sac-TMT group compared to 9.9 months for the chemotherapy group. This represents a significant improvement, with a hazard ratio of 0.60. The 30-month OS rates were 26.8% for sac-TMT and 13.2% for chemotherapy. The OS benefit was observed across all subgroups, including those who previously received a PD-(L)1 inhibitor and those with HER2-low tumors. The saf...