2026-ASCO-A phase II study of FOLFIRINOX (FFX) combined with the glycogen synthase kinase-3beta (GSK-3β) inhibitor elraglusib (ELRA) and the transforming growth factor beta (TGFβ) inhibitor losartan (LOS) in patients with untreated metastatic pancreatic ductal adenocarcinoma (mPDAC)