Q: If I submit an abstract do I have to attend the congress?
A: All accepted abstracts are scheduled in the Scientific Programme either as Oral, Poster or Publication only presentations. It is required that the presenting author of the abstract is registered for the congress. Only abstracts of registered participants will be scheduled in the Scientific Programme.
Q: I have submitted an abstract, when will I know if it has been accepted?
A: Only after all abstracts have been reviewed and allocated by the Scientific Committee will notifications be sent to the abstract submitters. Please refer to the Key Dates.
Q: How can I make changes to an abstract I have already submitted?
A: You may enter the Abstract Submission system with your username and password and make changes to your abstract until the submission deadline date. No abstract changes will be accepted after this date.
Q: If my abstract is accepted, where will it be published?
A: Copies of your accepted and registered abstracts will be published on the congress website and congress mobile App as well as in the Pediatric Blood & Cancer Journal (3 months after the congress). Please contact the Abstract Department for further details.
Q: I am having trouble logging into the abstract submission system – my username/password is not working
A: Please try one of the following options via the abstract submission page:
1. In case you are using “Internet Explorer”, please try other internet browser e.g. “Google Chrome” or “Mozilla”
2. When you copy and paste your user name and password please make sure there is no extra space at the beginning or the end of them
3. In case your password contains the letter “O” please make sure you do not type “0” (Zero) instead of the letter “O”
4. Please note that the username or ID received when registering for the congress is different to the abstract submission. Please use the abstract submission username or “create new account”
Q: Is the congress CME accredited?
A: Once the Scientific Programme has been finalized, an application for CME credits will be made.
Q: How can I claim my CME-CPD credits after the congress?
A: You may receive your CME Certificate of Attendance after the congress.
Each medical specialist should claim only those hours of credit that he/she actually spent in the educational activity.
Q: Can I claim CME credit for sessions watched online?
A: Yes.
Q: How do I register for the congress?
A: Registration for SIOP 2025 will open soon, through the dedicated page here.
Q: How can I pay the registration fees?
A: Payment of registration fees can be made by credit card or bank transfer. More information can be found here.
Q: Can I receive an invoice under the sponsoring Company/ Hospital’s name?
A: Yes. If you require an invoice to be issued to the sponsoring company, during the registration process you can write their billing details.
Q: Can I register for the congress without paying?
A: Yes, but your registration will be confirmed only when full payment is received.
Q: Can I register before the early fee deadline and pay later?
A: In order to benefit from the early fee registration discount, payment must be received before the deadline.
Q: Can I register during the congress?
A: Yes. registration is available during the congress days. Onsite fees will apply.
Q: What does my registration fees include?
A: For full detailed entitlements, please check the registration page once registration is open.
Q: Will I receive a confirmation letter after I have finished registering?
A: Yes. A detailed confirmation letter and receipt will be sent to you by email as soon as payment is received and registration is completed.
Visa processes and customs
Visa regulations depend on your nationality and country of origin. We suggest you contact your local Dutch Embassy or Consulate for full and official instructions on the specific visa regulations and application procedure that apply to you.
It is the responsibility of the participant to obtain a visa if required.
How to Enter the Netherlands
Learn about the most common types of visas for business, student or travel you may need when coming to or traveling through the Netherlands, plus review what other documents you need to enter the Netherlands.
Which visa do I need to travel to the Netherlands? Find out more here.
Procedures for Entering the Netherlands
When you arrive in the Netherlands, you must show valid travel documents as part of the entry process. The documents you need and whether your passport needs to be valid for six months after your travel dates depend on the country you are arriving from and your citizenship or status. Find out more here.
Visa Invitation Letter
An invitation letter is available to registered participants. Your Registration ID and email are required to receive an invitation letter. You can find the link to the visa letter portal in your registration confirmation.
Q: What are the key dates to mark in my calendar?
- April 1, 2025 – Abstract Submission Deadline
- July 23, 2025 – Early Registration Deadline
- Aug 19, 2025 – Late Breaking Abstract Submission Deadline
- October 20-23, 2025 – SIOP 2025 Congress
Blackout times apply during the main annual congress program (excl. Educational Day – Day 1) *during main meeting hours.
NB: if you are planning to invite any key opinion leaders or SIOP leadership to your press or media activity prior to the congress, please inform the SIOP office info@siop-online.org accordingly, since this might overlap with internal society meetings.
We will try to accommodate these requests in the best way we can.
Q: How can I find out information about hotels and their rates for this Congress?
A: Kenes International is offering Conference participants specially reduced rates for various hotels around the Conference venue. Information, pictures, location, and rates are available on the hotel accommodation page (coming soon).
Q: How can I book my room, and should I pay in advance?
A: In order to book a room, please click here (coming soon) to book online. Please note that full payment is required upon booking.
Q: Will I receive hotel confirmation?
A: Yes. A detailed confirmation will be sent to you by email as soon as the booking is confirmed, and the payment is received.
Q: Can I book a hotel room without registering for the conference?
A: Yes. You can book your room without registering by clicking on the “Booking” button of your chosen hotel available on the website via the hotel accommodation page (coming soon). If you need further assistance, please email the Hotel Accommodation Department.
Q: How can I book rooms for a group?
A: For group booking (5 rooms and more) please fill in the Group Bookings form available on the accommodation page or contact the Hotel Accommodation Department. Different payment and cancellation conditions apply.
Q: Can I cancel my hotel booking?
A: Cancellation deadlines apply for each booking request and depend, among other factors, on the service type, the travel supplier, dates of travel etc. For more information, please contact the Hotel Accommodation Department.
The SIOP Scientific Committee jointly with our SIOP Scientific Programme Advisory WG has finished the review and scoring of all submitted abstracts. The abstract selection and allocation (oral and poster presentations) will be taking place early June 2025. We will announce the final selection of scholarship (incl. nursing) and/or Young Investigator Award winners by end of June 2025 by email.
We do know that for many of you in-person attendances to the congress depends on receiving a scholarship (incl. nursing) and/or Young Investigator Award. We are also wary of the long process to secure visas and collecting the necessary documentation.
Unfortunately, we cannot speed up this process. Should you have any questions regarding your scholarship/ Young Investigator Award application, please contact info@siop-online.org