Abstract
Only a limited number of therapeutic strategies are available for patients diagnosed with pancreatic adenocarcinoma, and disease recurrence and mortality are consequently high. For metastatic disease, two combinations are approved in the first line setting: a triplet with 5-fluoruracil, irinotecan, and oxaliplatin, and the combination of gemcitabine and nab-paclitaxel. In patients who have progressed on gemcitabine, a new nanoliposomal formulation of irinotecan has recently been approved. While these treatments have demonstrated some efficacy, there has been little increase in survival rates for metastatic pancreatic cancer patients. Consequently, there is an urgent need for research and development of new treatments. As there is now a deeper understanding of pancreatic cancer biology, new drugs targeting altered pathways are under research, including agents that target TGF-β, IGF, or NOTCH. Furthermore, taking into account the role of the tumor stroma in this disease, some stroma-targeting drugs are being developed, including PEGPH20, a pegylated recombinant human hyaluronidase. In the immunotherapy field, although checkpoint inhibitors have failed to demonstrate benefit as monotherapies, combinations with other drugs are being investigated, with promising preliminary results. Other strategies under research are targeting tumor metabolism or DNA repair deficiency.
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