These meetings are not part of the main SIOP Scientific Programme and are hosted by our various affiliated societies, networks, and committees.
Please find an overview and more information on how to attend below:
Thursday, October 16, 2025
Art Exhibition “Heroes: A world without childhood cancer” – Free of charge
Time: 10:00 – 17:00 daily
Venue: De Hallen, Hannie Dankbaarpassage 47, 1053 RT Amsterdam
About:
An exhibition on childhood cancer worldwide will be held at De Hallen from October 16 until November 15, 2025
Heroes: A world without childhood cancer
Her Majesty Queen Máxima will open the exhibition on October 15. Ten children with cancer drew their heroes, who have superpowers to achieve a world without childhood cancer. Professional illustrators turned these drawings into life-size movie posters. The posters are part of an exhibition showcasing the Princess Máxima Center for Pediatric Oncology’s international efforts to reduce inequality in childhood cancer survival rates. ‘Heroes: A world without childhood cancer’ will be on display at De Hallen in Amsterdam from October 16 to November 16.
Some of the superheroes drawn by children with cancer from the Netherlands, Indonesia, Suriname, Kenya, and Armenia are Super Teddy, Superfluf, Super Doctor, and Wonder Woman. These superheroes have unique powers to help eradicate childhood cancer. The children’s drawings and their creators will be displayed on large banners in De Passage of De Hallen.
Better chances of survival
The De Hallen exhibition also illustrates the 80/20 paradox of childhood cancer survival rates worldwide. In low- and middle-income countries, where 80% of children with cancer reside, the survival rate is only 20%. In high-income countries, however, the opposite is true. Despite this inequality, pediatric oncology professionals around the world are working to improve survival rates.
The Heroes Exhibition is therefore being held during the SIOP World Congress from October 20 to 23, where more than 3,500 pediatric oncology professionals will gather at the RAI in Amsterdam to share the latest insights. International cooperation and knowledge exchange are essential because each type of childhood cancer is rare.
Find out more here
Saturday, October 18 and Sunday, October 19 2025
IPSO Educational Days 2025
It is a pleasure to invite you for the IPSO educational day 2025, prior to the main SIOP congress in Amsterdam on Saturday, October 18 and Sunday, October 19 2025, in the Princess Maxima Center, in Utrecht, The Netherlands.
This year’s meeting is a joint meeting with the SIOPEL, the COG liver group, and the Japanese Study Group for Pediatric Liver Tumor. On Sunday afternoon there are workshops (for IPSO members only) from the surgical 3D working group and a separate SIOPEL meeting at the Princess Maxima Center in Utrecht.
We have an interesting program for oncologists, radiologists, pathologists, biologists and surgeons. Join us and register now.
Costs: Free registration, lunch at own expenses in the Princess Máxima Center restaurant. Optional: networking event on Saturday evening October, 18th.
Check the event website for detailed information about the program, venue, route description etc.
We are looking forward to meeting you in Utrecht.
Fees: Registration (free of charge)
Venue: Princess Maxima Center, in Utrecht, The Netherlands
Sunday, October 19, 2025 (Day -1)
Making implementation happen: Barriers and facilitators of psychosocial screening using the Psychosocial Assessment Tool (PAT)
Time: 12:00 (noon) – 18:00 CEST (incl. lunch)
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Organizer: SIOP PPO Network & Princess Maxima Center
Fees: Registration (free of charge)
Deadline for applications: tbc
Registration: Register here
Event website: Access here
Agenda: View here
SIOP Rehabilitation and Physical Medicine WG Pre-Congress Educational Day
“Enhancing Quality of Life; Insights and Innovations in Physical Activity and Rehabilitation for Children with Cancer. “
Time: 10:30 – 16:30 CEST followed by networking event and dinner
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Fees: EUR 40
Deadline for applications: October 1, 2025
Registration: Register here
Event website: View here
Women’s Leadership Workshop
Join us in Utrecht ahead of SIOP Annual Congress 2025 for a half-day workshop designed to support and connect women working in paediatric oncology.
Led by hfp consulting, this interactive session will focus on leadership skills, mentorship, and practical tools for women across all disciplines—clinicians, nurses, researchers, psychologists, and more.
Time: 12:00–16:00
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Organizer: Women Leaders in Paediatric Oncology (WLPO) Network (WLPO)
Fees: €40 (HICs), €20 (UMICs), free (LMICs/LICs)
Scholarships available
Deadline for applications: 25 July, 2025 (12:00 noon CEST)
Registration: Register here (spaces are limited)
Event website: Click here
SIOP Rehabilitation and Physical Medicine WG Pre-Congress Educational Day
“Enhancing Quality of Life; Insights and Innovations in Physical Activity and Rehabilitation for Children with Cancer. “
Time: 10:30 – 16:30 CEST followed by networking event and dinner
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Fees: EUR 40
Deadline for applications: October 1, 2025
Registration: Register here
Event website: View here
SIOP Pharma Meeting: Bridging Knowledge and Care in Paediatric Oncology Summit for Pharmacists
Time: 13:00 – 17:30 CEST
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Organizer: Princess Maxima Center
Fees: incl. lunch & dinner € 100,00 (Incl. VAT) I incl. lunch/excl. Dinner € 50,00 (Incl. VAT)
Deadline for applications: none, but spaces are limited
Registration: Register here (spaces are limited)
Event website: Click here
Agenda: Click here
Tuesday, October 21, 2025 (Day 2)
SIOP Artificial Intelligence (AI) Working Group Evening
Time: 17:00 – 19:30 CEST
Venue: Google Offices Amsterdam, Claude Debussylaan 34, 1082 MD Amsterdam, Netherlands
Please remember to bring a valid photo ID for building access.
Meeting Room: tbc
Organizer: SIOP AI WG & Google Health
Fees: free of charge
Deadline for applications: none, but spaces are limited
Registration: Register here (spaces are limited)
Event website: n/a
Agenda:
🕔 17:00–17:30 | Welcome
🧠 17:30–19:00 | Talks: Google, Academia & Startups
🥂 19:00–19:30 | Drinks & Networking
🍽️ 19:30 onwards | Optional informal dinner (at participants’ own expense)
Wednesday, October 22, 2025
Young SIOP Network (YSN) Collaborative Event
Strike for Hope: Young SIOP Bowling Afternoon
Time: 16:00 – 17:30 CEST
Venue: Knijn Bowling, Scheldeplein 3, 1078 GR Amsterdam (very close to the RAI Congress venue)
Organizer: Young SIOP Network (YSN)
Fees: EUR 10 (option to apply for waived fee if based in LMIC/UMIC)
Deadline for applications: n/a
Registration: Register here
Event website: n/a
Thursday, October 23, 2025
Movie Screening “Audrey’s Children” – Free of charge but registration needed
Time: 19:00
Venue: DeFilm Hallen, Hannie Dankbaarpassage 12, 1053 RT Amsterdam
Audrey’s Children tells the inspiring true story of Dr. Audrey Evans (SIOP Lifetime Achievement Award Winner, played by Natalie Dormer), who is recruited to the Children’s Hospital of Philadelphia in 1969 as the first female Chief of Oncology. Frustrated with the futility of current therapies and refusing to accept more can’t be done for her patients, she pioneers revolutionary life-saving treatments, creates the first ever Staging System for Neuroblastoma, and co-founds the first Ronald McDonald House. Her fight for change redefined medicine and continues to impact the lives of millions around the world.
Immediately following the screening, the writer/producer of the film, and lifelong friend of Dr. Audrey Evans, Julia Fisher Farbman will be joining us via ZOOM for a live Q&A!
Register here free of charge.
Friday, October 24, 2025 (post-congress)
SIOP Nutrition Network Research Forum
We invite you to the SIOP Nutrition Network Research Forum – a full-day event dedicated to advancing high-quality research that improves the lives of children with cancer through better nutrition.
Time: 08:30 – 18:00
Venue: Princess Maxima Center, Heidelberglaan 25, 3584 CS Utrecht, Netherlands
Meeting Room: tbc
Organizer: SIOP Nutrition Network
Fees: €155 (HICs), €55 (UMICs), €55 (LMICs/LICs) incl. catering
Deadline for applications: 25 July, 2025 (12:00 noon CEST)
Registration: Register here (spaces are limited)
Event website: Click here