Findings from ASTER 70s, a phase III randomized superiority study conducted on women 70 years or older "with a genomic grade index (GGI) high-risk oestrogen receptor (ER)-positive, HER2-negative breast cancer" identified no statistically significant effect of adding adjuvant chemotherapy to the prescribed treatment plan. While the authors od this study admit that more evidence of genomic profiling is needed to determine "whether chemotherapy is necessary for older patents with ER-positive tumours", ASTER 70s has provided little evidence on the benefit of adjuvant chemotherapy for older breast cancer patients.
To read more about this study, click here.
Sources mentioned:
- Brain E, Mir O, Bourbouloux E, et al. for the GERICO&UCBG/Unicancer. Adjuvant chemotherapy and hormonotherapy versus adjuvant hormonotherapy alone for women aged 70 years and older with high-risk breast cancer based on the genomic grade index (ASTER 70s): a randomised phase 3 trial . The Lancet 2025;406(10502):p489-500.
- Linn SC, Hilbers FS. Balancing quality and quantity of life in older patients with breast cancer . The Lancet 2025;406(10502):P422-424.
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