Can a Pre-Surgery diet alter breast cancer cells? new study investigates
NCT ID NCT04469296
First seen Nov 17, 2025 · Last updated Jun 22, 2026 · Updated 31 times
Summary
This study is testing whether women with early-stage luminal breast cancer can follow a special diet (ketogenic or protein-restricted) for about 9 days before their surgery. The main goal is to see if patients can stick to the diet. Researchers will also look at how the diet affects cancer cells and the immune system using blood and tumor samples. It is a small pilot study with 75 participants, so it is mainly about gathering information for future research.
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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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Study contacts
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Contact
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Locations
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Icm Val D'Aurelle
RECRUITINGMontpellier, Herault, 34298, France
Contact
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
iso-caloric ketogenic diet
What this could lead to
If successful, this study could show that short-term diet changes before surgery are feasible and may influence tumor biology, pointing toward future dietary interventions in breast cancer care.
What could go wrong
This is a very small, early pilot study (75 participants) focused on feasibility, not on curing cancer. It does not test whether the diet improves outcomes, and 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.