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Kelun-Biotech Presents Positive Results of Phase 3 Clinical Study OptiTROP-Breast02 for Sacituzumab Tirumotecan in Advanced HR+/HER2- Breast Cancer at 2025 ESMO

  • Sacituzumab Tirumotecan showed statistically significant improvement in progression-free survival compared to chemotherapy in advanced HR+/HER2- breast cancer, as concluded from the Phase 3 clinical study OptiTROP-Breast02.
  • The study found that the PFS benefit was evident in all predefined subgroups, independent of HER2 status.
  • The Center for Drug Evaluation accepted new indication applications for sac-TMT, allowing priority review for treatment in specific breast cancer patients who previously received other therapies.
  • The findings suggest that sac-TMT is a safe and effective treatment option for patients previously treated for HR+/HER2- breast cancer.
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The Berkshire EagleThe Berkshire Eagle
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Kelun-Biotech Presents Positive Results of Phase 3 Clinical Study OptiTROP-Breast02 for Sacituzumab Tirumotecan in Advanced HR+/HER2- Breast Cancer at 2025 ESMO

CHENGDU, China, Oct. 18, 2025 /PRNewswire/ -- Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. (the "Company") announced that at the 2025 European Society for Medical Oncology (ESMO) Congress held in Berlin, Germany, results from a Phase 3 OptiTROP-Breast02 study of the Company's…

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PR Newswire broke the news in United States on Saturday, October 18, 2025.
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