About SIOP

The International Society of Paediatric Oncology (SIOP) was founded in the late 1960’s. It has grown into a dynamic and vibrant global organisation. SIOP has over 1000 members worldwide including doctors, nurses, other health-care professionals, scientists and other researchers. Our members are dedicated to increasing knowledge about all aspects of childhood cancer. Our aim is to improve and optimise treatments throughout the world. SIOP’s vision is that no child should die of cancer.


We strive to achieve this vision:


  • by ensuring that each child and young adult with cancer has access to state of the art treatment and care
  • by ensuring that all involved in childhood cancer worldwide, have access to the latest advances through meetings, networking, and continuing professional development
  • by supporting those caring for children and young adults with cancer to provide the best curative and palliative therapies
  • by advocating for appropriate long term follow up for survivors


SIOP works towards the various goals through the activities of its committees and through its annual congress. This provides an excellent environment in which scientific and clinical research can flourish. SIOP also sponsors regional and continental meetings to promote the exchange of information and good practice in paediatric oncology all over the world.

Continental branches
In addition to the overarching global organisation, SIOP has 6 continental branches to address issues of particular relevance to their area of the world. Each branch is headed by an elected continental president.

We encourage all healthcare professionals involved in work on cancer in children and young adults to join SIOP, attend our congresses and regional meetings, and use SIOP as a means of developing their networks. Join SIOP and help us achieve our goals.

Join SIOP Now!

Become a part of the SIOP community today and connect with other paediatric oncology professionals.

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SIOP 2015 Abstract submission

Submit your abstract to the SIOP 2015 Cape Town Annual Meeting now

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