DEADLINES

• Regular Abstracts

Tuesday, May 26, 2026, at 11:59 pm ET. 

This deadline will not be extended. NOTE: Abstracts including titles, content, and authors, cannot be edited after the May 26 deadline. Acceptance notifications will be sent in late July or early August.

• Late-Breaking Abstracts

Tuesday, May 26, 2026, at 11:59 pm ET (Placeholder)

Friday, September 4, 2026, at 5:00 pm ET (Final) 

Only abstracts related to late phase clinical trials will be accepted for late-breaking consideration. Submitters who do not submit a placeholder abstract by the May 26 deadline will not be allowed to submit a late breaking abstract at a later date. Please carefully review the late-breaking guidelines prior to submitting a late breaking abstract. Acceptance notifications will be sent out after the final September 4, 2026, deadline. Please note: Late-breaking submissions MUST use the late-breaking link to submit their abstract.

• Withdrawals

By submitting an abstract, submitters are confirming that the presenting author will register and present the abstract at the SNO Annual Meeting. All accepted abstracts will be published as submitted in the journal Neuro-Oncology. Once the abstracts are submitted to the journal for publication, requests for withdrawals cannot be processed. All requests to withdraw must be submitted by Monday, August 10, 2026, at 5:00 pm ET. 

• Registration Deadline

Friday, September 18, 2026, at 11:59 pm ET

All abstract presenters (oral and poster) must be present at the SNO Annual Meeting in Philadelphia and must register for the meeting by the deadline.

ABSTRACT SUBMISSION FEES

• Regular Abstracts

A $45 (USD) non-refundable submission fee will be charged per abstract submitted. Payment is due at the time of submission. Checks, wire transfers, and purchase orders will not be accepted. 

• Please note: The abstract submission fee does not include registration for the 2026 SNO Annual Meeting.
• SNO is pleased to offer abstract submission waivers to submitters residing in low-income countries and lower-middle-income countries (LMICs), as defined by the World Bank. LMIC submitters must request the LMIC submission link at the time of submission from Tara Mammoser tara@soc-neuro-onc.org or Caroline Noor caroline@soc-neuro-onc.org.
• Please contact Tara Mammoser tara@soc-neuro-onc.org or Caroline Noor caroline@soc-neuro-onc.org for the LMIC submission link.

• Late-Breaking Abstracts

A $125 (USD) non-refundable submission fee will be charged per late-breaking abstract submitted. Payment is due at the time of submission. Checks, wire transfers, and purchase orders will not be accepted. Late Breaking submitters must use the late-breaking link to submit their abstract.

PERMISSIONS

• All accepted abstracts will be published as submitted in the journal Neuro-Oncology. Submitters will be required to provide permission to publish. There are no exceptions.
• All presentations will be recorded and will be made available on SNO’s website for approximately one year following the meeting. Submitters will be required to provide permission to record. There are no exceptions.
• The abstract submitter must confirm that all authors have approved the abstract submission.
• The abstract submitter must confirm that at least one author will register for the SNO Annual Meeting and present the abstract, if it is accepted.
• Presenters will receive full credit for their presentations. For the purposes of Neuro-Oncology, Neuro-Oncology Practice, and other scholarly journals, presenting in these forums will not be considered prior publication.

REGISTRATION REQUIREMENTS

• All listed abstract presenters (oral and poster) MUST register for the SNO Annual Meeting by the Friday, September 18 deadline. If the listed presenter is not registered by the registration deadline, the abstract will be withdrawn from the meeting.
• Presenters who withdraw their abstracts after receiving the presentation allocation notification may be limited to poster presentations or may face possible rejection for future SNO meetings.
• Presenters must present their abstract in person at the SNO Annual Meeting in Philadelphia, Pennsylvania. Virtual or pre-recorded presentations will not be permitted. If you have a presenter change, you must notify Tara Mammoser at tara@soc-neuro-onc.org via email prior to the meeting.

EMBARGO DETAILS

• The embargo will be lifted for regular abstracts on November 2, 2026, at 8:00 am ET. Late-breaking abstracts will be released the day of presentation.
• Press releases may be issued after the embargo is lifted. However, we ask that you do not release the presentation slides or posters until after the presentation at the SNO Annual Meeting.

SUBMITTER/PRESENTER RESPONSIBILITES

• Presenters using a third party to create slides and/or posters are responsible for communicating presentation details and specifications with the third party.
• All poster presenters must provide an electronic version of their poster, which will complement the physical display at the meeting. This version will be available for attendees on the SNO website and mobile app for approximately one year after the meeting.
• Initial communication regarding abstract acceptance and presentation details will be sent to the abstract submitter and subsequently to the presenter, if different. Submitters are responsible for ensuring that the presenting author receives all relevant information.
• Presentation notifications and related information will be sent to the email address submitted by the abstract submitter. Submitters should confirm that both their own and the presenter’s email addresses are correct. SNO is not responsible for verifying emails.

ABSTRACT AWARDS

• All submitted abstracts (except for Late-Breaking Abstracts) are automatically considered for subject matter awards. In addition, abstract submitters may also indicate their willingness to be considered for the Young Investigator Award and the EANO Travel Scholarships noted below: 
• Young Investigator Awards recognize outstanding abstracts with the designation of an oral presentation during a session of the SNO Annual Meeting, an award certificate, and a monetary award. To be considered a Young Investigator, applicants must be within the first five years of a faculty appointment (tenure or non-tenure track) within their institution. Postdoctoral fellows, research associates below faculty level are not eligible.
• EANO Travel Scholarships: SNO and EANO are awarding reciprocal travel scholarships to their respective meetings, (EANO in Rome, Italy on September 24-27, 2026, and SNO in Philadelphia, Pennsylvania on November 12-15, 2026). A joint committee of the scientific leadership of both organizations will review top-scoring abstracts to select the winners who will present oral abstracts. Airfare, hotel stipend and registrations fees for travel to Rome, Italy will be provided for the SNO scholarship recipients. Please note that applying for this award does not preclude you from presenting your work in Philadelphia.
• Please note, the in-person presenting author will receive all awards.

CONTENT OF ABSTRACTS

• Please review Subject Matter Track Descriptions prior to submitting an abstract.
• Abstract submitters should carefully review their submission for content errors, including spelling, author names, and other details, prior to submission. SNO does not proofread or correct spelling, typographical, grammatical, or scientific errors. Accepted abstracts will be published as submitted in the journal Neuro-Oncology, and no edits will be allowed after the May 26 deadline.
• Abstract Title
• Should be sentence case (i.e., only the first letter of the sentence should be capitalized).
• Should be plain text (no html).
• Word Limit: 75 words.
• Abstract Body
• Figures and tables are not allowed.
• If sub-headers are used (i.e., Background, Methods, Results, Conclusions), they should be included in the paragraph and not bold.
• Abstracts should be data-driven and must include relevant data within the body of the abstract.
• Word Limit: 300 words.
• Authors
• There can only be one presenting author per abstract submission. If the listed presenting author is unable to present, a co-author will be allowed to present in their place. All presenter changes must be sent via email to Tara Mammoser at tara@soc-neuro-onc.org.
• Enter the names of authors in the order in which you wish them to appear on the SNO Annual Meeting website and in the journal.
• Communication will be sent to the email address submitted by the abstract submitter. Submitters should confirm that all email addresses entered are correct. SNO is not responsible for verifying emails.
• Abstract submitters should verify the spelling of authors’ names and their institutional affiliations. SNO does not proofread or correct any spelling or affiliation errors.
• Author Limit: 50 authors with a maximum of 2 affiliations per author.
• Authors cannot be edited or added after the May 26 deadline. 
• Encore Abstracts
• SNO does accept encore abstracts. The work submitted to SNO should be built upon the published data and expand the findings.

ABSTRACT SUBJECT MATTER TRACK & SUBMISSION CATEGORY DETAILS

• The abstract submitter must select a subject matter track and category that best corresponds to the content of the abstract. The chosen track may not necessarily align with the submitter’s professional specialty; it should reflect the subject matter of the abstract.
• For example, if a neurosurgeon is submitting a basic science abstract, they should select the basic science track.
• NOTE: Upon review, the SNO Annual Meeting Planning Committee reserves the right to change the special interest track and category originally selected by the abstract submitter.
• For Late Breaking Abstract information, guidelines and the Late Breaking Abstract submission link please click here.