Inclusion Criteria:
Subject must meet all of the following applicable inclusion criteria to participate in this study:
Exclusion Criteria:
Subjects meeting any of the criteria below may not participate in the study:
- Patients currently receiving anticancer therapies or who have received anticancer therapies within 14 days prior to day 1 of study drug (including investigational agents, chemotherapy, and antibody-based therapy).
- Radiation therapy within 14 days prior to day 1 of study drug. A 1-week washout is permitted for palliative radiation (≤ 2 weeks of radiotherapy) to non-CNS disease.
- Intolerance to pembrolizumab or other PD-1/PD-L1 axis drug(s), or any other antibody or drug specifically targeting T-cell co-stimulation or immune checkpoint pathways, including prior therapy with anti-tumor vaccines or other immune-stimulatory anti-tumor agents.
- Known auto-immune conditions requiring systemic immune suppression therapy other than prednisone ≤10 mg daily (or equivalent).
- History of (non-infectious) interstitial pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease.
- Receipt of allogeneic transplant (stem cell transplantation or solid organ).
- Current use of medications specified by the protocol as prohibited for administration in combination with the study drugs. This includes patients with a condition requiring systemic treatment with either corticosteroids (>10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days prior to day 1 of study drug. Inhaled or topical steroids and adrenal replacement doses >10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
- Known history of HIV seropositivity or known acquired immunodeficiency syndrome (AIDS), hepatitis C virus (allowed if received curative therapy), acute or chronic active hepatitis B infection, or other serious chronic infection requiring ongoing treatment. NOTE: no testing for Hepatitis B, Hepatitis C or HIV is required unless mandated by local health authority.
- Current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment on Day 1 of study drug. Patients receiving prophylactic antibiotics (e.g., for prevention of urinary tract infection or chronic obstructive pulmonary disease) are eligible.
- Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use while the mother is being treated on study).
- Patients with a prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen, per treating physician discretion, are not eligible for this trial.
- Known active CNS metastases which are symptomatic. Eligible if metastases have been locally treated 14 days prior to Cycle 1 Day 1, are clinically controlled, or asymptomatic on Cycle 1 Day. Steroid dose must be equivalent of ≤10 mg prednisone daily or equivalent dose steroid. Untreated, asymptomatic brain metastases allowed if subject does not require corticosteroids or anticonvulsant therapy.
- History of myocardial infarction, NYHA class III or IV congestive heart failure, or unstable angina, cardiac or other vascular stenting, angioplasty, or surgery within 6 months prior to study enrollment.
- Has received a live vaccine or live-attenuated vaccine within 30 days prior to the first dose of study drug. Administration of killed vaccines is allowed.