Million-Woman trial could change breast screening age limits
NCT ID NCT01081288
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This nationwide trial is looking at whether inviting women aged 47-49 and 71-73 for breast screening helps reduce deaths from breast cancer. Over 4 million women across England are taking part. The study compares breast cancer deaths and treatments between those invited and those not, to help guide future NHS screening policy.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this could show that offering breast screening to younger and older women saves lives, potentially expanding NHS screening policy.
- What could go wrong
- This is an observational trial, not a treatment study. Results may not show a clear benefit, and screening can lead to false alarms or overdiagnosis.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cancer Epidemiology Unit, Richard Doll Building, University of Oxford, Roosevelt Drive
Oxford, OX3 7LF, United Kingdom