Not Yet RecruitingNot Applicable

Predicting Response to Immunochemotherapy in Early Triple Negative Breast Cancer

France200 participantsStarted 2026-06-01

Plain-language summary

The goal of this clinical trial is to identify cellular and molecular determinants of response to neoadjuvant immunochemotherapy in women aged 18 or older with early-stage triple-negative breast cancer (TNBC). The main questions it aims to answer are: * Can detailed immune profiling of the tumor and its microenvironment predict pathological complete response (pCR, RCB-0) versus partial/non-response (RCB-I, II, III) to neoadjuvant immunochemotherapy? * Are there specific immune or molecular biomarkers (e.g., TILs, CD3/8/20, FoxP3, PDL1, transcriptomic signatures) associated with progression-free survival and overall survival in this population? Researchers will compare patients achieving pCR (RCB-0) to those with residual disease (RCB-I, II, III) to determine if immune and molecular profiles can discriminate responders from non-responders and guide personalized treatment strategies.

Who can participate

Age range

18 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Female. * Age ≥ 18 years. * Histologically confirmed invasive triple-negative breast cancer (ER and PR \< 10% by IHC, HER2 0, 1+, or 2+ with negative SISH), stage II or III. * Eligible for neoadjuvant immunochemotherapy according to the Keynote-522 regimen. Indication for intra-tumoral clip placement. \- Signed written informed consent Exclusion Criteria: * Pregnant or breastfeeding women. * Hematoma requiring Grade II analgesics after diagnostic biopsy. * Known coagulation disorders. * Adults under guardianship, curatorship, or legal protection, or deprived of liberty. * Not affiliated with a social security system.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Comparison of Immune Determinants According to Response to Neoadjuvant Immunochemotherapy

Timeframe: Baseline (pre-treatment tumor biopsy) and up to 5 years (annual blood samples and clinical follow-up).

Comparison of Immune Determinants According to Progression-Free Survival (PFS)

Timeframe: From baseline (pre-treatment) through 5 years of follow-up.

Comparison of Immune Determinants According to Overall Survival (OS)

Timeframe: From baseline (pre-treatment) through 5 years of follow-up

Trial details

NCT IDNCT07570524

SponsorCenter Eugene Marquis

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2036-05-31

Contact for this trial

Valérie JOLAINE

0299253036 v.jolaine@rennes.unicancer.fr

View on ClinicalTrials.gov More Triple-negative Breast Cancer (TNBC) trials