Benefits of Early Collaboration Between Oncologists and Palliative Care Physicians in Cases of Unplanned Hospitalization for Patients With Metastatic Cancer

This is a multicenter, national, interventional, cluster-randomized study, "stepped wedge" design. This study includes patients with metastatic or locally advanced digestive, gynecological, ENT, or sarcoma cancer, currently undergoing systemic palliative treatment and hospitalized on an unscheduled basis. The study will aim to evaluate the impact of early palliative care implementation for patients with metastatic or advanced cancer identified during an unplanned hospitalization.