In this study the investigator would like to better understand the maximum tolerable dose (MTD) of SX-682 in combination with nivolumab in patients with metastatic pancreatic ductal adenocarcinoma who have completed at least 16 weeks of first line chemotherapy treatment without evidence of disease progression. In addition, the investigator would like to measure the SX-682 pharmacokinetic data in humans. The investigator would also like to assess the immunophenotypic and stromal changes to the tumor microenvironment after treatment.
The main purpose of this research study is to determine the maximum tolerable dose (MTD) of SX-682 in combination with nivolumab in patients with metastatic pancreatic ductal adenocarcinoma who have completed at least 16 weeks of first line chemotherapy treatment without evidence of disease progression.