Immune cell levels may guide breast cancer treatment in new trial

NCT ID NCT05645380

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2 trial tests whether the number of immune cells in and around a triple-negative breast cancer tumor can help doctors personalize chemotherapy and immunotherapy. About 139 women with early-stage triple-negative breast cancer will receive standard chemotherapy drugs plus pembrolizumab (Keytruda). The goal is to see if those with high immune cell levels and good early response can have better tumor shrinkage, potentially reducing the need for more aggressive treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Carboplatin, Docetaxel, Doxorubicin, Cyclophosphamide, Pembrolizumab

What this could lead to

If successful, this could lead to a more personalized treatment approach for triple-negative breast cancer, potentially improving tumor shrinkage and reducing unnecessary chemotherapy.

What could go wrong

This is a phase 2 trial with 139 participants, so results are preliminary. The approach may not work for all patients, and chemotherapy drugs have significant side effects like fatigue, nausea, and increased infection risk.

Disclaimer Read more

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 triple-negative breast carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • The University of Kansas Cancer Center - Clinical Research Center

    Fairway, Kansas, 66205, United States

  • The University of Kansas Cancer Center - Lee's Summit

    Lee's Summit, Missouri, 64064, United States

  • The University of Kansas Cancer Center - Main Hospital

    Kansas City, Kansas, 66160, United States

  • The University of Kansas Cancer Center - North

    Kansas City, Missouri, 64154, United States

  • The University of Kansas Cancer Center - Overland Park

    Overland Park, Kansas, 66210, United States

  • The University of Kansas Cancer Center - Westwood

    Kansas City, Kansas, 66205, United States

  • University of Kansas Cancer Center at North Kansas City Hospital

    North Kansas City, Missouri, 64116, United States