This study is a single arm, phase II trial, of 45 patients with locally advanced pancreatic ductal adenocarcinoma. The efficacy of the novel drug and mitochondrial inhibitor, CPI-613, in conjunction with standard-of-care FOLFRINOX, as a first-line therapy will be evaluated. Pre-treatment, diagnostic biopsy tissue will be collected when available, and clinical data will be evaluated to determine if the combination results in improved overall survival compared to historical experience.