Trial of a Personalized and Adaptive Neoantigen Dose-Adjusted Vaccine Concurrently With Pembrolizumab

The primary therapeutic neoantigen vaccine product, Personalized and Adaptive Neoantigen Dose-Adjusted Vaccine (PANDA-VAC), will be comprised of 6 peptides at a dose of 300 micrograms (µg) per peptide admixed with local adjuvant Stabilized polyriboinosinic/polyribocytidylic acid (Poly-ICLC).

Pembrolizumab will be administered at 200 mg IV dose every three weeks. The subject may transition to 400 mg every six weeks if, after the first scan done after start of treatment, they have a partial response or better or after two scans with stable disease or better.