Abstracts
Presentation of E-posters
While all posters accepted for presentation at the AACR Annual Meeting 2026 were presented in person, poster presenters were also required to submit a companion e-poster in either video or PDF formats. The e-poster file can be an electronic copy of the print poster, a modified version of the print poster, or a summary of the key findings. E-posters will be available online to registered Annual Meeting attendees through October 2026.
Responsibilities of Authors
By submitting an abstract for presentation at the AACR Annual Meeting, abstract authors agree and/or attest to the following:
- Support for Abstract/Verification of Authorship. All authors accept individual responsibility for the accuracy and integrity of statements in their abstract, and the submitting author is required to ensure that all authors have confirmed that all statements are an accurate reflection of the presented data, that they have all agreed to the submission of the abstract, and that they agree with being listed as contributors prior to submission. The submitting author is also required to ensure that all relevant contributors to the abstract are included in the list of authors.
- Sponsorship of Abstracts. The submitting author must provide the name of an AACR member who has agreed to sponsor the abstract, and the submitting author must attest that the permission of the member sponsor has been secured prior to initiating an abstract submission.
- Transfer of Copyright. On behalf of all authors, the submitting author must assign and transfer copyright for the abstract to the AACR.
- Presentation of Abstracts. All proffered papers scheduled for presentation at the AACR Annual Meeting 2026 must be presented in person. The submitting author for each abstract must designate a presenter who agrees to register for the meeting and attend the corresponding session to discuss in detail the research presented in the published abstract. If the assigned presenter cannot attend the meeting, the authors are expected to designate a replacement or withdraw the abstract.
- Confirmation of No Prior Publication/Presentation. Authors who submit an abstract confirm that they have not previously published these data, that they have not previously presented them at a large national annual scientific meeting, and that they are not planning to present or publish them prior to the dates of the AACR Annual Meeting 2026. Preprints (draft research papers posted online before peer review) are not considered to be a prior publication if they are posted online before abstracts are submitted to the AACR Annual Meeting. If the data contained in an abstract submission are published or presented prior to the scheduled date of presentation at the AACR Annual Meeting, the authors must withdraw the abstract by contacting [email protected].
Abstracts submitted to the AACR Annual Meeting are confidential and embargoed until the AACR publishes the abstracts on the AACR’s online itinerary planner.
Exceptions: Encore presentations are permitted for clinical trials abstracts that are submitted for the January 12, 2026, clinical trials deadline. During the submission process, authors of encore clinical trials abstracts must provide the date and name of the meeting at which the original trial abstract was presented.
Certain laws may require disclosure of clinical trial data through federal and international registries within a specific amount of time following trial completion, or disclosure of clinical trial data by federal and international agencies for regulatory purposes related to drug safety and efficacy. Such disclosures will not be considered a violation of the AACR’s Embargo Policy, but the courtesy of advance notice to the AACR by email at [email protected] is requested.
Any other exceptions to this policy are at the discretion of AACR leadership.
Deadline for Withdrawal of Abstracts
Requests to withdraw regular abstracts sent to [email protected] were accepted through Thursday, February 19, 2026. Requests to withdraw late-breaking or clinical trials abstracts were accepted through Friday, March 6, 2026.