SIOP 2021 HAS BEGUN Congress platform now open Available to all registered participants LOGIN HERE YOU CAN STILL JOIN The global community online An enhanced virtual experience REGISTER TODAY ENHANCED NETWORKING Take advantage of SparkX The new networking tool at the virtual congress LEARN MORE Slide MEMBERS Enjoy a number of benefits Join the community today! LEARN MORE


OCTOBER 21-24, 2021 | JOIN US ONLINE Eastern Daylight Time (EDT, UTC-4)

Experience 4 outstanding days of cutting-edge science, engaging debates and networking with world-renowned experts at SIOP 2021!

Advance your paediatric oncology career, connect with like-minded people and contribute to a world where no child should die of cancer!

The Congress programme will be running on Eastern Daylight Time (EDT, UTC-4). If you cannot join a session live, you can watch its recording afterwards.


August 24, 2021 – Late-Breaking Abstract Submission Deadline

October 21-24, 2021 – SIOP 2021 Virtual Congress

“Considering the uncertainties about the COVID situation worldwide later in the year and the anticipated travel restrictions affecting those working in hospitals and universities, the SIOP Board has made the decision to hold SIOP 2021 in a completely on-line format.

We will build on the success of this format from the 2020 congress.

The Scientific Committee is working hard to offer a rich programme with many live sessions. We look forward to seeing your research and progress in outcomes and care.”

Kathy Pritchard-Jones, SIOP President



of SIOP 2020 Virtual Congress participants surveyed

0 %
described the SIOP Virtual Congress content as high quality and evidence based
0 %
agreed the quality of the speakers / faculty was excellent
0 %
agreed that the Virtual Congress improved their professional competencies
0 %
would recommend this educational event to others
0 %
would attend the SIOP Virtual Congress again