U.S., Sept. 24 -- ClinicalTrials.gov registry received information related to the study (NCT07836257) titled 'A Phase II Study of Trastuzumab Deruxtecan (T-DXd) Plus Pyrotinib in HER2-Positive Advanced Breast Cancer After Progression on T-DXd' on Sept. 15.

Brief Summary: This is a single-arm, exploratory, phase II study evaluating the efficacy and safety of trastuzumab deruxtecan (T-DXd) in combination with pyrotinib in patients with HER2-positive advanced breast cancer whose disease has progressed after prior treatment with T-DXd.T-DXd is the established standard second-line therapy for HER2-positive advanced breast cancer. However, acquired resistance inevitably develops, and there is currently no approved standard treatment for patients...