Could your period affect chemo success? new study investigates
NCT ID NCT06273800
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether the phase of a woman's menstrual cycle when she starts chemotherapy affects how well the treatment works for breast cancer. Researchers will collect a blood sample from 100 premenopausal women with triple-negative breast cancer on the day they begin neoadjuvant chemotherapy. The goal is to see if the timing is linked to a higher chance of a complete response.
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 help doctors personalize chemotherapy timing based on menstrual cycle to improve outcomes.
What could go wrong
This is an observational study, not a treatment trial. It may not find a clear link, and results may not change practice.
Disclaimer
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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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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
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Study contacts
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Contact
Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Antoni van Leeuwenhoek
RECRUITINGAmsterdam, North Holland, 1066CX, Netherlands
Contact Email: •••••@•••••
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••