Results from 2 studies presented at the recent ESMO Congress 2024 in Lugano, Switzerland, indicate that there is "no increase in recurrence or new breast cancers in women who breastfeed after being treated for breast cancer." These findings provide the first evidence on breastfeeding in patients with a BRCA mutation. Results from one of the studies dhows that of the 518 women who paused breast cancer treatment to have a baby, "317 had at least one live birth..and 62% breastfed." The rate of breast cancer recurrence after 2 years was 3.6% in women who breastfed vs. 3.1% in those that did not.
To learn more about these studies, click here.
Sources mentioned:
- Lambertini M, Magaton IM, Hamy-Petit A-S et al. Safety of assisted reproductive techniques in young BRCA carriers with a pregnancy after breast cancer: results from an international cohort study. Abstract 266O presented at ESMO Breast Cancer 2024.
- Partridge AH, Niman SM, Ruggeri M et al. Interrupting endocrine therapy to attempt pregnancy after breast cancer. NEJM 2023; 388: 1645-1656
- Lambertini M, Blondeaux E, Agostinetto E et al. Pregnancy after breast cancer in young BRCA carriers. An international hospital-based cohort study. JAMA 2024; 331: 49-59
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