2025 Oncothon

Save the date and join us for a day of unity and action for childhood cancer. One Day. One Mission. One Global Effort. Ferbuary 15 is Int Childhood Cancer Day!

Read more

SIOP 2025 CONGRESS

Join us in Amsterdam October 20-23, 2025, for the SIOP Annual Congress! Abstract submission is open (due April 1, 2025, no extension).

>Early Bird Registration: Jul 23, 2025

>Late Breaking Abstract: Aug 19, 2025

Submit Abstract

Join SIOP Today

Please use promotional code SAVE5NOW to benefit from a 5% discount when purchasing a 2-year membership (calendar years 2025 and 2026). Applicable to all membership categories.

Join or renew

New Research Supports the Benefits of Symptom Screening

Two groundbreaking studies published in JAMA and JAMA Pediatrics highlight the significant impact of routine symptom screening on symptom management in paediatric oncology.

Read more