Trajectories of Anxiety and Depression in Cancer Patients, Risk and Predictive Factors and Supportive Care; Prognostic Awareness and Shared Decision Making.

Inclusion Criteria: * Histologically confirmed diagnosis of solid cancer (non-hematologic) at any stage. * Adult age (\>18 years). * Candidate for perioperative systemic antineoplastic treatment or for advanced disease. * Willingness to participate in the study and sign the informed consent form, as appropriate, before initiating any study-specific procedures, in accordance with good clinical practice requirements and local regulations. Exclusion Criteria: * Presence of a pre-existing psychiatric or neurodegenerative disorder that impairs the patient's ability to participate in the study. * Presence of reading and writing difficulties that prevent the patient from completing the assessments. * Receipt of oncological treatment in the past 2 years for another cancer.