Investigating the Metabolic Pathways in Hormone Receptor Positive/HER2 Negative Breast Cancer

Pilot Study to Investigate the Metabolic Pathways in Hormone Receptor Positive/HER2 Negative Breast Cancer

To analyze the metabolic activity of Hormone Receptor Positive (HR+)/Her 2 Negative (Her2-) Breast cancer.

Participants will be asked to receive a glucose infusion (U-13C- glucose intravenous) during routine breast cancer surgery at which time, tumor biopsy samples and blood samples will be collected to be used in research experiments to help provide insight into the metabolic activity of the tumor. The length of time on study for each patient will be three - four weeks including two to three hours for glucose infusion and breast cancer biopsy.

Inclusion Criteria:

• Have hormone receptor (HR) positive [estrogen receptor( ER)+/progesterone receptor (PR)+, ER+/PR- or ER-/PR+)/Her2 negative breast cancer previously diagnosed by biopsy.
• Have early stage, clinical or anatomic stage I, II or III breast cancer (cT1cN0, cT1cN1, cT2N0, cT2N1, cT3N0)
• Candidates for intended curative primary resection who have not had neoadjuvant therapy (endocrine/hormonal therapy, chemotherapy with or without immunotherapy).
• Willing to undergo mandatory intraoperative small excisional and core biopsies (4-6 passes) of tumor and normal tissue for research purposes at the time of proposed surgical resection.

Exclusion Criteria:

• Is currently enrolled, or will enroll in, a different clinical study in which investigational therapeutic procedures are performed or investigational therapies are administered while participating in this study.
• Has triple negative (ER-/PR-/Her2-) or HER2+ breast cancer.
• Concomitant active malignancy
• Is of child-bearing potential who has not had a recent negative pregnancy test done outside of this clinical trial (i.e., as part of standard preparation for diagnosis and treatment for her cancer)