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

Inclusion Criteria: * Subjects aged 18 years and older; * Diagnosed with metastatic or locally advanced digestive, gynecological, ENT, or sarcoma cancer; * Currently undergoing systemic palliative treatment (no prospect of cure); * Hospitalized on an unscheduled basis (i.e., unplanned hospitalization for scheduled oncology treatments); * Patient covered by the French social security system; * Informed consent, written and signed. Exclusion Criteria: * PS (WHO) = 4; * Patient receiving end-of-life care; * Patient opposed to the use of medical data for research purposes; * Person deprived of liberty or under guardianship; * Inability to undergo medical monitoring for the trial for geographical, social, or psychological reasons.