Less frequent mammographic surveillance non-inferior compared with annual mammograms after diagnosis of breast cancer in women aged 50 years or older

 Results of Mammo-50, a randomized phase III trial conducted across the United Kingdom on women aged 50 or older was recently published in The Lancet.  Findings from Mammo-50 indicate that women 50 years or older when diagnosed with breast cancer "who have undergone annual mammographic surveillance for 3 years post diagnosis...[and who] show no signs of recurrence, can safely have less frequent mammograms."  The authors further state that this evidence may result in changes to guidelines, both within the U.K. and globally as well. 

To learn more about the Mammo-50 trial, click here. 

Sources mentioned: 

• Dunn JA, Donnelly P, Elbeltagi N, et al. Annual versus less frequent mammographic surveillance in people with breast cancer aged 50 years and older in the UK (Mammo-50): a multicentre, randomised, phase 3, non-inferiority trial. The Lancet 2025;405(10476):396–407.
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• Mann RM. Rethinking surveillance after breast cancer. The Lancet 2025;405(10476):356-358.

Cancer prevention and screening account for most cancer deaths averted among different interventions across the cancer control continuum

 An extensive study of population-level mortality data, along with cancer prevention and screening interventions across common cancer in the United States over the past 45 years was recently compiled by the National Cancer Institute.  According to the authors, "an estimated 5.94 million cancer deaths were averted for breast, cervical, colorectal, lung, and prostate cancers combined, [where] cancer prevention and screening efforts averted 8 of 10 (4.75 million) deaths." The authors further emphasize the importance of early diagnosis and prevention may "reduce or eliminate treatment, minimize harmful adverse effects of cancer or treatment, and reduce the financial burden of cancer." 

To read more about this study, click here. 

Source mentioned: 

Goddard KAB, Feuer EJ, Mandelblatt JS, et al. Estimation of Cancer Deaths Averted From Prevention, Screening, and Treatment Efforts, 1975-2020. JAMA Oncology; Published online 5 December 2024. doi: 10.1001/jamaoncol.2024.5381