Deanna B. van Gestel is a global leader in oncology communications and advocacy, bridging biopharmaceutical innovation with cancer care worldwide. She is the Founder and Chief Executive Officer of Vaniam Group, a global medical communications network she created to connect scientific discovery, industry, and the oncology community.
She is also the founder of Women Leaders in Oncology (WLO), an international community dedicated to empowering women in cancer research and leadership. Under her leadership, WLO supports early-career oncology scientists through annual Young Investigator Awards. A Board Member of Conquer Cancer, the foundation of the American Society of Clinical Oncology (ASCO), Deanna van Gestel contributes to shaping global strategies for cancer research funding, education, and advocacy.
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.
