- Women diagnosed with pathologically confirmed metastatic triple negative invasive
breast cancer (centrally confirmed immunophenotype negative for all three receptors
ER, PR and HER2).
- Have either evaluable disease, or have measurable clinical disease: Measurable
disease, defined as at least 1 unidimensionally measurable lesion on a CT scan as
defined by RECIST (version v1.1).
- Patients received up to 2 prior regimens for their disease in the metastatic setting.
- Patients are candidates for chemotherapy with carboplatin and gemcitabine.
- Eastern Cooperative Oncology Group (ECOG) performance status 0 - 2.
- Patients must be willing and able to provide written informed consent for the trial
- Demonstrate adequate organ function as defined below, all screening labs should be
performed within 10 days of treatment initiation.
- Absolute neutrophil count (ANC) Greater than or equal to 1,500 /mcL.
- Platelets greater than or equal to 100,000 / mcL.
- Hemoglobin greater than or equal to 9 g/dL or 5.6 mmol/L.
- Serum creatinine OR Measured or calculated creatinine clearance (GFR can also be
used in place of creatinine or CrCl) less than or equal to 1.5 X upper limit of
normal (ULN) OR greater than or equal to 60 mL/min for subject with creatinine
levels greater than 1.5 X institutional ULN.
- Serum total bilirubin less than 1.5 X ULN OR Direct bilirubin less than the ULN
for subjects with total bilirubin levels greater than 1.5 ULN.
- Aspartate aminotransferase (AST) (SGOT) and Alanine aminotransferase (ALT)
(SGPT) less than or equal to 2.5 X ULN OR less than or equal to 5 X ULN for
subjects with liver metastases.
- International Normalized Ratio (INR) or Prothrombin Time (PT) less than or equal
to 1.5 X ULN unless subject is receiving anticoagulant therapy.
- Activated Partial Thromboplastin Time (aPTT) less than or equal to 1.5 X ULN
unless subject is receiving anticoagulant therapy as long as PT or PTT is within
therapeutic range of intended use of anticoagulants.
- Patients of childbearing potential must be willing to use 2 methods of birth control
or be surgically sterile, or abstain from heterosexual activity for the course of the
study through 120 days after the last dose of study medication.
- Patients participating in another trial of an investigational agent within 4 weeks of
the first dose of the study.
- Patients who received prior therapy using carboplatin/gemcitabine less than 12 months
from the beginning of their enrollment or subjects whose tumor progressed while on
treatment with carboplatin or cisplatin.
- Patients with baseline grade 2 neuropathy.
- Diagnosis of immunosuppression or receiving steroid therapy or other
immunosuppressive therapy within 4 weeks of the study.
- Active autoimmune disease or a documented history of autoimmune disease, or a
syndrome that has required systemic treatment in the past 2 years
- Has evidence of interstitial lung disease or active, non-infectious pneumonitis
- Has had a prior monoclonal antibody within 4 weeks prior to study Day 1 or who has
not recovered (i.e., Grade 1 or at baseline) from adverse events due to agents
administered more than 4 weeks earlier.
- Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy
within 2 weeks prior to study Day 1 or who has not recovered (i.e., Grade 1 or at
baseline) from adverse events due to a previously administered agent.
- If subject received major surgery, they must have recovered adequately from the
toxicity and/or complications from the intervention prior to starting therapy.
- Known additional malignancy that progressed and/or required treatment in the last 5
years. Except that for basal and squamous cell carcinoma of the skin or in situ
cervical carcinoma that has completed potentially curative therapy.
- Life expectancy of less than 3 months.
- Prior therapy with an anti-programmed cell death 1 (PD-1), anti-programmed cell death
1 ligand (PDL-1), anti-PD-L2, anti-CD137 antibody, or anti-cytotoxic T-lymphocyte
-associated antigen-4 (CTLA-4) antibody.
- Pregnant, breastfeeding, or expecting to conceive children within the projected time
of the trial, starting with the pre-screening or screening visit and through 120 days
after the last dose of trial treatment.
- Active infection requiring systemic therapy.
- Has known active central nervous system (CNS) metastases and/or carcinomatous
meningitis. Subjects with previously treated brain metastases may participate
provided they are stable (without evidence of progression by imaging for at least
four weeks prior to the first dose of trial treatment and any neurologic symptoms
have returned to baseline), have no evidence of new or enlarging brain metastases,
and are not using steroids for at least 7 days prior to trial treatment.
- Has a history or current evidence of any condition, therapy, or laboratory
abnormality that might confound the results of the trial, interfere with the
subject's participation for the full duration of the trial, or is not in the best
interest of the subject to participate, in the opinion of the treating investigator.
- Has received a live vaccine within 30 days prior to the first dose of trial
Minimum Eligible Age: 18 Years
Maximum Eligible Age: N/A
Eligible Gender: Female