“…This is particularly important in PDAC; not more than 20% of patients are eligible for the resection at the time of the diagnosis (3), while the rest might have an indication for chemotherapy. In this setting, while Gemcitabine monochemotherapy has for a long time been the standard treatment for unresectable PDAC with relatively poor effect represented by a median overall survival (OS) around 6 months (11), intensified regimens, such as the combination of 5-fluorouracil, leucovorin, irinotecan, and oxaliplatin (FOLFIRINOX), or the addition of Nab-Paclitaxel to gemcitabine, are nowadays more frequently used, with substantially improved survival (12)(13)(14)(15)(16)(17). However, due to their side effects, particularly encountered in FOLFIRINOX, intensified regimens can be less tolerable, leading to dose reduction or therapy discontinuation (13)(14)(15), which makes their use limited to the patients with ECOG status of 0, 1, and 2 (15,16).…”