Pancreatic Ductal Adenocarcinoma, PDAC Clinical Trial
Official title:
Exploring the Influence Factors of the Efficacy of PD-1 Monoclonal Antibody Therapy in Advanced Pancreatic Cancer After Failure of First-line Chemotherapy by Using Multiomics Technology
The early diagnosis rate of pancreatic cancer is low and most patients rely on palliative chemotherapy. However, the clinical benefit and objective response rate (ORR) of patients with first-line chemotherapy are low. Therefore,it is essential to develop new therapies to improve the survival of patients with pancreatic cancer.
In this study, patients with advanced pancreatic cancer who failed in the first-line chemotherapy will be included to receive anti-PD-1 monoclonal antibody treatment, and a high-throughput study with a small sample size will be carried out by using multiomics technology to capture the heterogeneity of response to PD-1 therapy in patients with pancreatic cancer.The investigators choose two time points: after chemotherapy failure (before PD-1 therapy) and during efficacy evaluation（after PD-1 therapy）, to obtain in situ samples of pancreatic cancer tissues by EUS-FNA.The samples are tested by dynamic multi-omics studybefore and after treatment (including genomics, transcriptomics, metabonomics, proteomics, etc.).And combining the results with the drug reaction and clinical outcome of patients for a comprehensive analysis.The purpose of this study is to explore the potential biomarkers or omics of PD-1 therapy and lay the foundation for building a model to predict the effect of PD-1 therapy in patients with advanced pancreatic cancer. ;