Biomarkers in Predicting Response to Treatment in Patients Who Have Undergone Surgery for Pancreatic Cancer

Using material that is already being acquired as a component of clinical care (only that which is excess after routine clinical care), it will be determined if pre-treatment markers can be used to correlate with clinical outcomes of survival and recurrence. Examples of such markers include studying if the integrity of DNA repair pathway in pancreatic cancers, analyzed by Rad51 and phosphorylated DNA-PK foci formation, correlates with tumor response to radiotherapy, chemotherapy, and overall survival.