Rob Pieters is a pediatric oncologist at the Princess Máxima Center in the Netherlands, Chief Máxima International, and the President of the International Society of Pediatric Oncology (SIOP). One of the initiators and founders of the Princess Máxima Center, he helped consolidate expertise from the Netherlands’ seven former childhood cancer centers, establishing one of the largest pediatric cancer centers in Europe for treatment and research. His research focuses on personalized therapies for childhood acute lymphoblastic leukemia (ALL).
Prof. Pieters holds multiple international leadership roles, including membership on the EU Cancer Mission Board and SIOP-Europe, Editor-in-Chief of the European Journal of Cancer – Pediatric Oncology. In 2018, he received a Royal knighthood (Officer in the Order of Oranje Nassau) for his contributions to children with cancer, and his current focus is advancing international collaboration to improve survival, survivorship, and equity in access to high-quality care and research.
The 100 Most Influential People in Oncology in 2025 recognizes the changemakers in cancer care who have helped shape current practice in oncology and continue to drive innovation and research towards better outcomes, advocacy, philanthropy, leadership and education. For the many deserving individuals not mentioned in this list, we will continue to acknowledge, honor and elevate your voices in our daily publications from across the world.
See the full list of The 100 Influential People in Oncology in 2025 and stay tuned for the results of special category nominations to be announced.
