EURACAN gathers the largest network of active EU centers involved in the management of patients with rare adult solid cancers. EURACAN is a multi-domain ERN, bringing together different branches of rare cancers, based on histological and organ of origin classifications. Each branch includes HCPs with experience in networks, establishing guidelines, clinical trials, and development of research projects. Several of these centers are connected into national networks, allowing for either country-level or international coverage.