Co-CAPTAIN project aims to address disparities in care for people with mental illness in Europe through innovative solutions such as the Patient Navigation Model. This approach focuses on patient empowerment, removing systemic barriers and ensuring access to primary prevention services. With the collaboration of experts and local governments, the project uses scientific approaches to reduce the burden of cancer and improve the overall health of people with mental health problems, reducing costs in health and social care systems in Europe. In addition, it aims to integrate integrated cancer care pathways and provide policy recommendations at European level.