In patients with pancreatic cancer, older age, multiple comorbidities, frailty, malnutrition and poor functional status are common, especially in individuals receiving neoadjuvant chemotherapy. These characteristics represent potentially modifiable risk factors for poor postoperative outcomes. The goal of this clinical randomized controlled trial is to evaluate the extent to which a four-week multimodal prehabilitation program impacts on postoperative morbidity, functional and nutritional status and health-related quality of life in patients with localized pancreatic or periampullary cancer scheduled for curative surgery. In addition, the impact of prehabilitation on circulating sarcopenia and cancer cachexia biomarkers in PDAC patients will be explored. Included patients will be randomized (ratio 1:1) and allocated either to the intervention group (Multimodal Prehabilitation), which will receive prehabilitation, or to the control group, which will receive no prehabilitation.