U.S., June 26 -- ClinicalTrials.gov registry received information related to the study (NCT07035353) titled 'A Real-world Clinical Study of T-DXd for the Treatment of Chinese Patients With HER2 Overexpressing and HER2 Underexpressing Advanced Breast Cancer' on June 12.

Brief Summary: The study is an open, prospective study to collect data on the efficacy and safety of T-DXd (DS8201) in Chinese patients with HER2 overexpressing and HER2 underexpressing advanced breast cancer in actual clinical practice in China.

Cohort A:

HER2 overexpressing patients with advanced breast cancer

Cohort B:

HER2 underexpressing patients with advanced breast cancer A total of 400 subjects will be enrolled in the program, with 200 enrolled in Cohort A and 20...