Evaluate Risk/Benefit of Nab Paclitaxel in Combination With Gemcitabine and Carboplatin Compared to Gemcitabine and Carboplatin in Triple Negative Metastatic Breast Cancer (or Metastatic Triple Negative Breast Cancer)

Inclusion criteria

• ✓. Female subjects, age ≥ 18 years at the time informed consent is signed
• ✓. Pathologically confirmed adenocarcinoma of the breast
• ✓. Pathologically confirmed as triple negative, source documented, defined as both of the following
• ✓. Estrogen Receptor (ER) and Progesterone Receptor (PgR) negative: \< 1% of tumor cell nuclei are immunoreactive in the presence of evidence that the sample can express ER or PgR (positive intrinsic controls)
• ✓. Human Epidermal Growth Factor Receptor 2 (HER2) negative as per American Society of Clinical Oncology - College of American Pathologists (ASCO/CAP) guidelines i. Immunohistochemistry (IHC) 0 or 1 Fluorescence In Situ Hybridization (FISH) negative (or equivalent negative test). Subjects with IHC 2 must have a negative by Fluorescence In Situ Hybridization (FISH),, (or equivalent negative test).
• ✓. Subjects with prior breast cancer history of different phenotypes (ie, ER/PgR/HER2 positive) must have pathologic confirmation of triple negative disease in at least one of the current sites of metastasis
• ✓. Subjects must have received prior adjuvant or neoadjuvant anthracycline therapy; unless (a) anthracycline treatment was not indicated or was not the best treatment option for the subject in the opinion of the treating physician; and (b) anthracycline treatment remains not indicated or, in the opinion of the treating physician, is not the best treatment option for the subject's metastatic disease.
• ✓. Subjects with measurable metastatic disease, defined by Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1) guidelines

Exclusion criteria