Determining the Link Between Dietary Patterns, Fecal Microbiome and Response to Neoadjuvant Chemotherapy

This study is investigating whether a patient's gut bacteria (microbiome) and dietary habits influence how well they respond to chemotherapy before surgery for pancreatic ductal adenocarcinoma (a type of pancreatic cancer). **You may be eligible if...** - You are 18 or older - You have been diagnosed with pancreatic ductal adenocarcinoma (confirmed by biopsy or tissue testing) - Your cancer is resectable (operable) or borderline resectable based on imaging - You have signed informed consent **You may NOT be eligible if...** - Your cancer is locally advanced or has spread to other organs (stage IV) - You have already started or completed neoadjuvant (pre-surgery) chemotherapy for this cancer - You have another active cancer currently being treated with systemic therapy Talk to your doctor to see if this trial is right for you.