RecruitingPhase 1Drug trialA Study to Evaluate the Safety and Tolerability of SX-682 in Combination With Nivolumab as a Maintenance Therapy in Patients With Metastatic Pancreatic Ductal AdenocarcinomaThe 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.