Spots Global Cancer Trial Database for Evaluation of Endocrine Therapy Effects of Host Immunity in Early Stage Breast Cancer

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Trial Identification

Brief Title: Evaluation of Endocrine Therapy Effects of Host Immunity in Early Stage Breast Cancer

Official Title: Evaluation of the Effects of Endocrine Therapies on Immune Cell Repertoire and Function in Early Stage Estrogen Receptor Positive Breast Cancer Patients

Study ID: NCT03719495

Conditions

Breast Cancer

Estrogen Receptor-positive Breast Cancer

Healthy

Interventions

Study Description

Brief Summary: The purpose of this research study is to learn about the effects that standard of care endocrine therapies have on the immune system's response to cancer by looking at the number and types of immune cells present and how they function in women with early stage estrogen receptor positive (ER+) breast cancer.

Detailed Description: The study will enroll mainly subjects with estrogen receptor positive breast cancer that have completed surgery and radiation therapy to remove the tumor(s) and have not yet started standard treatment endocrine therapy. There is one group of subjects who have not been diagnosed with cancer. The information learned from this study will help doctors understand more about how the immune system responds to endocrine therapy for early stage breast cancer in people who are estrogen receptor positive with the goal of developing improved therapies that harness the immune system.