Vitamin D receptor agonist paricalcitol plus gemcitabine and nab-paclitaxel in patients with metastatic pancreatic cancer.

TPS784 Background: Patients(pts) with metastatic pancreatic cancer (PC) have a median survival of less than one year even with use of multiagent chemotherapy programs. Pancreatic tumors are composed of multiple cell types and a dense extracellular matrix that may support cancer cell proliferation and impede chemotherapy delivery. Cancer-associated fibroblasts (CAF’s) in the tumor microenvironment secrete pro-inflammatory factors and components...