Impact of Pancreatic Endoscopic Drainage on Exocrine Pancreatic Function in Unresectable Pancreatic Cancer

Background: exocrine pancreatic insufficiency (IPE), frequent in patients with pancreatic cancer, plays a major role in malnutrition and cachexia with a significant impact on survival, quality of life and tumor progression. IPE due to obstruction of the main pancreatic duct and atrophy of pancreatic parenchyma proximal to the tumor could be corrected by insertion of a pancreatic stent for improving nutritional status and consequently survival. Aim: The aim of this study is to assess the impact of transpapilar drainage of the main pancreatic duct on exocrine pancreatic function, nutritional status, and life survival in patients with unresectable pancreatic adenocarcinoma. Methods: Impact of pancreatic endoscopic drainage on exocrine pancreatic function in patients with unresectable pancreatic adenocarcinoma (DEPARA) is a double-blind, prospective, multicentre, international clinical trial. Unresectable locally advanced or metastatic pancreatic cancer (PDAC) will be diagnosed according to the National Comprehensive Cancer Network (NCCN) criteria and the indication of endoscopic retrograde cholangiopancreatography (ERCP) due to obstructive jaundice (\>3mg/dl). PEI will be defined by reduced fecal elastase levels. The nutritional status will be determined by means of Mini-Nutritional Assessment score, sarcopenia score (SARC-F) and laboratory blood tests. Primary aim: Evaluation of the improvement and difference of pancreatic secretion as measured by fecal elastase at 2 weeks post-stenting (biliopancreatic versus biliary). Secondary aims: evaluation of the prevalence of PEI post-stenting (biliopancreatic versus biliary) and proportion of patients normalizing pancreatic function. The difference in terms of weight loss, maldigestion symptoms, GI-Qol, nutricional status and performance status. Survival at 2 weeks, 3 and 6 months, overall survival. Analyzes: fecal elastase value at 2 weeks post-stenting (absolute value of fecal elastase) compared between biliopancreatic st