500 breast cancer patients help scientists crack the code of treatment resistance

NCT ID NCT06681064

Recruiting now Knowledge-focused Sponsor: Royal Marsden NHS Foundation Trust Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is for 500 adults with non-metastatic breast cancer who are about to start treatment like chemotherapy or targeted therapy before surgery. Researchers will collect tumor tissue, blood, and sometimes stool samples and MRI scans during treatment. The goal is to learn why some cancers respond well and others don't, and to find better ways to predict which patients might have their cancer return.

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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.

breast cancer breast neoplasm estrogen-receptor positive breast cancer HER2 positive breast carcinoma invasive breast carcinoma triple-negative breast carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

BREAST CANCER ER+ BREAST CANCER HER2 + BREAST CANCER TRIPLE NEGATIVE BREAST CANCER

Contacts and locations

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Study contacts

Contact

Phone: •••-•••-•••• Email: •••••@•••••
Contact

Phone: •••-•••-•••• Email: •••••@•••••

Locations

Royal Marsden NHS Foundation Trust
RECRUITING

London, SW3 6JJ, United Kingdom

Contact Phone: •••-•••-•••• Email: •••••@•••••

Contact Email: •••••@•••••