Breast Cancer Prevention and Risk Reduction
Summary
Breast cancer prevention encompasses a spectrum of interventions aimed at lowering the lifetime risk of invasive and in situ disease through personalised risk assessment, lifestyle modification, pharmacological strategies and surgical options. Advances in risk prediction models—integrating clinical factors, family history and genomic profiles—enable stratification of individuals into tailored prevention pathways. Pharmacological approaches, notably selective oestrogen receptor modulators and aromatase inhibitors, have demonstrated substantial reductions in oestrogen receptor-positive breast cancer among high-risk cohorts, although concerns over side-effects continue to limit uptake and long-term adherence. Modifiable lifestyle factors such as alcohol consumption, physical inactivity and obesity are established contributors to risk; public health programmes promoting regular exercise and moderation of alcohol intake correlate with modest declines in incidence. Genetic testing for high-penetrance pathogenic variants in genes such as BRCA1 and BRCA2, along with emerging polygenic risk scores, informs decisions on intensified surveillance and risk-reducing surgery, including bilateral mastectomy and salpingo-oophorectomy, which may confer risk reductions exceeding 90% in mutation carriers. Digital decision aids and virtual education tools are increasingly deployed to support informed choice, address barriers to implementation and align preventive measures with individual values. Global efforts continue to refine strategies that balance efficacy, safety and accessibility, aiming to reduce disparities in breast cancer morbidity and mortality worldwide.
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Breast Cancer Prevention and Risk Reduction publication trend
The graph below shows the total number of articles in breast cancer prevention and risk reduction across all publications each year (not limited to Nature Index journals).
Technical terms
Chemoprevention: use of pharmacological agents to prevent or delay the development of cancer.
Selective oestrogen receptor modulator: compound that binds to oestrogen receptors, acting as an antagonist in breast tissue while preserving beneficial effects elsewhere.
Aromatase inhibitor: drug that blocks the enzyme aromatase, thereby reducing peripheral oestrogen synthesis in postmenopausal women.
Risk stratification: process of categorising individuals according to their probability of developing disease based on clinical, genetic and lifestyle factors.
Decision aid: digital or paper-based tool designed to support informed decision-making by presenting personalised risk and benefit information.
References
- Validation study of risk-reduction activities after personalized breast cancer education tool in the WISDOM study. npj Breast Cancer (2024).
- Side effects of low-dose tamoxifen: results from a six-armed randomised controlled trial in healthy women. British Journal of Cancer (2023).
- Drug and biomarker tissue levels in a randomized presurgical trial on exemestane alternative schedules. Journal of the National Cancer Institute (2024).
- Cancer prevention and screening: the next step in the era of precision medicine. npj Precision Oncology (2019).
- Factors affecting uptake and adherence to breast cancer chemoprevention: a systematic review and meta-analysis. Annals of Oncology (2015).
- Informed choice about breast cancer prevention: randomized controlled trial of an online decision aid intervention. Breast Cancer Research (2013).
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