[Neoadjuvant treatment of primarily resectable and borderline resectable pancreatic cancer]

Abstract

Due to the increasing prevalence pancreatic cancer represents a severe tumor burden to the population and will be ranked second for cancer-related mortality by the year 2030. If a curative approach is pursued a radical R0 resection of the tumor with sufficient cancer-free resection margins (≥1 mm) should be performed. This has been shown to be associated with a clear benefit for survival. For treatment planning of pancreatic cancer the tumor stage plays a pivotal role. In cases of distant metastases a palliative concept is normally initiated. If no distant metastases are detected neoadjuvant treatment can be performed in cases of borderline resectability or locally advanced stages in order to downsize these tumors. In this situation a neoadjuvant treatment has been shown to significantly increase resectability rates and to improve the tumor stage (downstaging). The most recent randomized trials were able to show a significant survival advantage of neoadjuvant treatment for borderline resectable pancreatic cancer. In cases of primarily resectable pancreatic cancer the current standard of care is an upfront resection followed by adjuvant chemotherapy. Initial data are also available indicating a survival benefit even for resectable pancreatic cancer after neoadjuvant treatment; however, reliable randomized controlled trials showing a survival advantage of neoadjuvant treatment compared to the current standard treatment of adjuvant chemotherapy following resection are missing. Numerous randomized controlled trials investigating the efficacy of neoadjuvant chemotherapy for resectable pancreatic cancer are currently underway.

Keywords: Chemoradiotherapy; Chemotherapy; Ductal adenocarcinoma of the pancreas; Prognosis; Resection status.