Examining the immune environment in different types of breast cancer

Role of the Immune Environment in Response to Therapy in Breast Cancer

Observational Abramson Cancer Center at Penn Medicine · NCT05396612

This study looks at tissue samples from women with different types of breast cancer to see how the immune environment affects treatment responses.

Quick facts

Study typeObservational
Enrollment300 (estimated)
Ages18 Years and up
SexFemale
SponsorAbramson Cancer Center at Penn Medicine Academic / other
Locations1 site (Philadelphia, Pennsylvania)
Trial IDNCT05396612 on ClinicalTrials.gov

What this trial studies

This observational study analyzes tissue samples from women with various types of breast cancer, specifically focusing on the immune environments of ER+HER2- breast cancers compared to triple-negative and HER2+ breast cancers. The study does not involve any randomization or changes to standard treatment protocols, and it collects personal health information from participants under a HIPAA waiver. The goal is to better understand how the immune environment influences therapy responses in these breast cancer subtypes.

Who should consider this trial

Good fit: Ideal candidates are women aged 18 and older with non-metastatic breast cancer who are undergoing surgical resection at the University of Pennsylvania Health System.

Not a fit: Patients who are male, children, or pregnant individuals will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies tailored to the immune profiles of different breast cancer types.

How similar studies have performed: Other studies have explored the immune environment in breast cancer, showing promising results, but this specific approach is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria:

Women 18 years of age or older with non-metastatic breast cancer undergoing surgical resection in the University of Pennsylvania Health System.

Exclusion criteria:

Males Children Pregnant individuals

Where this trial is running

Philadelphia, Pennsylvania

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerER Positive Breast CancerHER2-negative Breast CancerTNBC - Triple-Negative Breast CancerImmune microenvironment
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.