Prof. Benjamin Besse is Director of Clinical Research at Gustave Roussy Cancer Campus (since 2021) and Professor of Medical Oncology at the University of Paris-Saclay, France. A specialist in thoracic malignancies, his research focuses on molecular profiling to personalise treatment, circulating biomarkers, and early drug development in thoracic tumours including rare subtypes such as NUT carcinomas and thymic malignancies. He has authored more than 500 peer-reviewed publications and served as principal investigator of more than 30 Phase I, II, and III clinical trials over the past five years. He coordinates the French network for thymic malignancies (RYTHMIC) and was elected President-Elect of the EORTC in July 2025, with the presidency assumed in June 2026. He is a member of ASCO, IASLC, and ESMO.