The Outstanding Study Group Leader Award recognizes the efforts of the principal driver of the main project that led to the Outstanding Study Group’s recognition and award. This year’s award goes to Prof Jørn Herrstedt, Chair of the 2023 MASCC/ESMO Antiemetics Guidelines update. His outstanding leadership was vital in completing this project; and his remarkable contributions, commitment, and unwavering support of MASCC and the Antiemetics Study Group over many years make him a very well-deserving recipient of this award.