The SIOP Europe office is lead by the Chief Executive Officer who supports the Board and the General Assembly in pursuing the organisation’s mission.  The aim of the SIOP Europe office is to:

  • Facilitate the collaboration amongst European professionals in the field of paediatric oncology;
  • Define and implement the communication strategy;
  • Empower the Board, facilitating its relationship with key stakeholders and policy-makers in the European Union.

Since December 2018, the office is located at the Brussels Life Science Incubator (c/o BLSI, Clos Chapelle-aux-Champs 30, Bte 1.30.30 1200 Brussels, Belgium), which is also home to ESSO, EONS and CDDF.


Samira Essiaf

(BE) Chief Executive Officer

Olga Kozhaeva

(BE) Policy & Public Affairs Coordinator

Anne Blondeel

(BE) Project Coordinator

Jackie Mellese

(BE) Communication Coordinator

Marta Kania

(PL) Events & Communication Administrator

Andrea Demadonna

(IT) Project & Research Coordinator

William Sciberras

(MT) External Relations Coordinator

Marko Ocokoljić

(SRB) Policy Administrator