GB491 Combined With Fulvestrant for HR+ HER2- Locally Advanced or Metastatic Breast Cancer

Summary

GB491-004 is a multicenter, randomized, double-blind, placebo-controlled Phase III study to evaluate the efficacy and safety of GB491 in combination with fulvestrant in patients with HR-positive, HER2-negative locally advanced or metastatic breast cancer who have progressed on prior endocrine therapy.

Timeline

Start

2021-09-10

Primary completion

2022-12-02

Completion

2024-03-30

Publications

• Xu B, Zhang Q, Luo Y, Tong Z, Sun T, Shan C, Liu X, Yao Y, Zhao B, Wang S, Zeng X, Hu C, Yan X, Wang X, Jia H, Chen Z, Qiu F, Wu X, Zhang D, Li T. Lerociclib plus fulvestrant in patients with HR+/HER2- locally advanced or metastatic breast cancer who have progressed on prior endocrine therapy: LEONARDA-1 a phase III randomized trial. Nat Commun. 2025 Jan 16;16(1):716. doi: 10.1038/s41467-025-56096-2.

Drugs

Indications