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Profile picture of Stefan Sleijfer
Principal Investigator

Prof S. (Stefan) Sleijfer, MD, PhD

Head of Dept Medical oncology

  • Department
  • Medical oncology
  • Focus area
  • Medical oncology, translational oncology, personalised cancer treatment



After my PhD (1997) and becoming a medical oncologist (2004), I am a staff member of the Department of Medical Oncology; since 2008 as a research co-ordinator in Cancer Genomics and Proteonomics, since 2011 as full professor in Medical Oncology and since 2013 as Head of the Department of Medical Oncology.

Field(s) of expertise

Translational Oncology - Establishment of prognostic and predictive markers in solid malignancies in particular circulating tumour cells, cell-free DNA and circulating endothelial cells

Clinical studies, in particular in soft tissue sarcoma and urogenital tumors


Other positions

Prof. Sleijfer is an active member of several scientific Societies, among which: chair of the Center for Personalised Cancer Treatment (CPCT), Chair of Committee “Development and Implementation” of the Dutch Cancer Society, and Chair of the “route Personalized Medicine” of the Dutch Science Agenda advising the Dutch government for research funding.

Prof. Sleijfer has been involved in the scientific organisation of several conferences and workshops. He has been the scientific director of the AACR-ESMO-ECCO-EORTC workshop on Methods on Clinical Cancer Research (formerly known as the “Flims course”) for a couple of years after being a student at this workshop in 2004 and faculty member for several years. He is section editor “Sarcoma, Endocrine and other Rare Tumors” for the European Journal of Cancer.