Geneva, Nov. 2 -- International Clinical Trials Registry received information related to the study (ChiCTR2600135060) titled 'Correlation of HER2 Status with 21-Gene Recurrence Score and Biomarker Exploration in HR+/HER2- Early Breast Cancer: A Single-Center Retrospective Cohort Study' on Oct. 23.

Study Type: Observational study

Study Design: Cohort study

Primary Sponsor: Jiangsu Province Hospital (The First Affiliated Hospital with Nanjing Medical University)

Condition: HR+/HER2- Early Breast Cancer

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2026-10-25

Target Sample Size: Observation group:600;

Countries of Recruitment: China

To know more, visit https://www.chictr.org.cn/showproj.html?proj=348...