Most of the data in unresectable is derived from patients in the metastatic setting in terms of chemotherapy agents. There have been two major studies that looked at various chemotherapy regimens versus the previous standard of care Gemzar. One study found improved survival with FOLFIRINOX and a second found that the combination of nab-paclitaxel and gemzar were superior to gemzar alone. Thus, the current standard of care for metastatic pancreas cancer (in which a local therapy like radiation has more limited role) is either FOLFIRINOX or gemzar and nab-paclitaxel. While there is some discussion of a randomized study comparing FOLFIRINOX and gemzar combined with nab-paclitaxel such a study has not started as of this time and it is unclear how much interest there would be in accruing to this study. Therefore the exact best chemotherapy regimen for metastatic disease is unclear but is either FOLFIRIONX or gemzar-nab-paclitaxel. The chemotherapy regimens for unresectable cancer are extrapolated from the metastatic setting, per NCCN guidelines any chemotherapy regimen approved for metastatic disease is reasonable to use in unresectable pancreas cancer. Thus for purpose of this study we have chosen one of the two chemotherapy regimens that have shown the best results in the metastatic setting, since there is no way to determine the exact best regimen we have chosen gemzar and nab-paclitaxel since it is felt that this is a less toxic regimen as compared to FOLFIRINOX.