The Masterclass is a full immersion, clinical oriented event designed for medical and clinical oncologists focusing on multidisciplinarity. The programme will expose participants to a full spectrum of issues in clinical and medical oncology from basic science to advanced knowledge of systemic therapy as well as the multidisciplinary treatment approach. It offers plenary lectures regarding state-of-the-art clinical evaluation and treatments with reference to clinical guidelines. Participants will deliver case presentations within tumour boards and discuss them with an international faculty of top experts of each tumour type. The live event will be preceded by a series of online sessions available via the e-ESO website.