Extra radiation may keep breast cancer away
NCT ID NCT00907868
First seen Jan 04, 2026 · Last updated Jun 19, 2026 · Updated 35 times
Summary
This study looks at whether adding a stronger dose of radiation to the tumor site after whole-breast radiation helps prevent breast cancer from returning. About 2004 women with a very early form of breast cancer called DCIS took part. All had breast-conserving surgery and whole-breast radiation; half also got a radiation boost to the area where the tumor was removed.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Centre Regional de Lutte Contre le Cancer - Centre Val d'Aurelle
Montpellier, 34298, France
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
radiation therapy
What this could lead to
If successful, this could show that a radiation boost lowers the chance of breast cancer coming back in women with DCIS after surgery.
What could go wrong
This is a large, late-stage trial, but the benefit of the boost may be small or come with extra side effects. Results may not apply to all patients.
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.