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Impact of Neoadjuvant Chemotherapy on the Peripheral Blood Immune Phenotype in Operable Breast Cancer — ENHANCE  

Invasive Breast Carcinoma Clinical Trial

Official title:
Evaluating the Impact of Neoadjuvant Chemotherapy on the Peripheral Blood Immune Phenotype in Patients With Operable Breast Cancer (ENHANCE)

Clinical Trial Summary

This early phase I trial evaluates the impact of chemotherapy before surgery (neoadjuvant) on the peripheral blood immune phenotype in patients with operable breast cancer. Collecting blood and information from patients with breast cancer may help to understand how the immune system influences response to treatment, and how the immune system reacts to breast cancer treatment.

Clinical Trial Description

PRIMARY OBJECTIVES: I. To evaluate whether pre-neoadjuvant chemotherapy (NAC) peripheral blood immune phenotypes (defined by mass cytometry) are associated with pathologic complete response (pCR) after neoadjuvant chemotherapy in patients with operable breast cancer. II. To evaluate whether the baseline peripheral blood immune phenotype differs between patients with breast cancer and age-matched healthy controls. SECONDARY OBJECTIVES: I. To characterize changes in the baseline peripheral blood immune phenotype that arise as a consequence of neoadjuvant chemotherapy. II. To create a biorepository of peripheral blood samples for future research in breast cancer, including circulating tumor deoxyribonucleic acid (ctDNA), epigenetic and functional studies. EXPLORATORY OBJECTIVE: I. To evaluate differences in peripheral blood immune phenotype of patients with oligometastatic breast cancer compared to patients with stage I-III breast cancer. OUTLINE: Patients undergo blood sample collection at baseline (prior to first NAC treatment), after taxane and prior to first dose of anthracycline/cyclophosphamide (A/C) (for patients receiving a taxane), end of NAC, 1-4 weeks and 6 months post-surgery. Patients also undergo tissue collection at 1-4 weeks and 6 months post-surgery. After completion of study treatment, patients are followed up every 6 months for up to 5 years. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04897009
Study type Observational
Source Mayo Clinic
Contact
Status Active, not recruiting
Phase
Start date June 9, 2021
Completion date May 15, 2025
View Details
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