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A 2025 study finds menopausal hormone therapy doesn’t raise breast cancer risk in BRCA-mutation women with prior breast cancer, challenging current guidelines.
A 2025 study presented at the San Antonio Breast Cancer Symposium found that menopausal hormone therapy (HRT) does not increase breast cancer risk in women with BRCA1 or BRCA2 mutations who have a history of breast cancer.
Researchers analyzed 676 matched pairs of BRCA carriers, mostly post-oophorectomy, and found a lower cumulative breast cancer incidence among HRT users (24.5% vs. 42.9%) and reduced mortality, especially with estrogen-only therapy.
No significant risk increase was seen with estrogen-progestin therapy, challenging current guidelines that often discourage HRT in this high-risk group.
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Un estudio de 2025 encontró que la terapia hormonal menopáusica no aumenta el riesgo de cáncer de mama en mujeres con mutación BRCA con cáncer de mama previo, desafiando las directrices actuales.