Gilead Gets Full Approval for Breast Cancer Drug

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FDA has granted Gilead Sciences full approval for Trodelvy (sacituzumab govitecan-hziy) for adult patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC) who have received two or more prior systemic therapies, at least one of them for metastatic disease. The approval is based on data from the Phase 3 ASCENT study, in which Trodelvy demonstrated a statistically significant and clinically meaningful 57% reduction in the risk of disease worsening or death (progression-free survival) PFS, according to the company. In the study, median PFS was extend to 4.8 months for patients on Trodelvy compared with 1.7 months for patients on chemotherapy alone, it says. Trodelvy also extended median overall survival to 11.8 months vs. 6.9 months for those on chemotherapy.

Gilead says Trodelvy is directed to the Trop-2 receptor, a protein expressed in multiple types of epithelial tumors, including TNBC. FDA granted the drug an accelerated approval a year ago based on objective response rate and duration of response results in a Phase 1/2 study. “Today’s approval expands the previous Trodelvy indication to include treatment in adult patients with unresectable locally advanced or metastatic TNBC who have received two or more prior systemic therapies, at least one of them for metastatic disease,” the company says.

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