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Notice Regarding Late-Breaking Abstract Submission

Please note: Abstracts are no longer being accepted for the 2021 Annual Meeting. The extended late-breaking abstract submission deadline was Tuesday, January 12, 2021.

The late-breaking abstract deadline for the AACR Annual Meeting is January 11, 2021. This deadline has traditionally been reserved for highly significant and timely findings in any area of cancer research that were not available at the time of the November 19 regular abstract deadline.

However, the AACR understands that the COVID-19 pandemic negatively impacted the ability of many investigators to submit an abstract by the November 19 deadline. Therefore, the program committee will consider these special circumstances while evaluating abstracts submitted for the January 11 late-breaking deadline. If you will have sufficient data by the January 11 deadline, you are welcome to submit an abstract for consideration at that time.

Submit a Clinical Trial or Late-Breaking AbstractDeadline: January 11, 2021

AACR Abstract Submission System. Authors must submit abstracts for presentation at the Annual Meeting 2021 using the AACR Abstract Submission System. You can create, modify, and submit abstracts until the January 11, 2021, abstract deadline.

To log into the abstract submission system, you must have a myAACR account. If you do not have a myAACR account, you will be given the opportunity to create one during the login process. If you need assistance with your myAACR account, contact the myAACR Help Desk.

Virtual Meeting Format. The AACR Board of Directors has decided to convene the AACR Annual Meeting 2021 in a virtual format.

View the Virtual Meeting Announcement
Read the Virtual Meeting FAQ
Early Registration Deadline: January 15, 2021Register Now

Abstract Release Dates

  • March 10, 2021: Regular abstract titles, authors, and text released
  • March 10, 2021: Clinical trial and late-breaking abstract titles and authors released
  • April 9, 2021: Clinical trial and late-breaking abstract text released
    [The text of abstracts selected for inclusion in the AACR press program with be released at the date and time of presentation.]

Late-Breaking Abstracts

Submission Deadline. The deadline for late-breaking abstracts is 11:59 p.m. U.S. ET, Monday, January 11, 2021.

Special Abstract Solicitation: COVID-19 and Cancer. The Program Committee welcomes abstracts on all aspects of COVID-19 and Cancer for consideration for oral and poster presentation at the AACR Annual Meeting 2021. Refer to the COVID-19 and Cancer abstract categories in the online abstract submitter.

Financial Relationships of Coauthors. Per ACCME regulations, the AACR must collect information on the financial relationships of all meeting presenters and abstract authors. You will be asked to disclose your financial relationships and the financial relationships of each of your coauthors.

Sponsor Permission and Information. Each abstract must be sponsored by an AACR member. You must secure the permission of the sponsor before submitting the abstract. For details, see the “Abstract Sponsorship Regulations” section.

Submission Fee. Each abstract submitted must be accompanied by a $65 abstract submission fee. The submission fee can be paid by credit card or check. The fee is nonrefundable regardless of the final disposition of the abstract.

Clinical Trials Abstracts

Submission Deadline. All abstracts describing clinical trials (including placeholder abstracts) should be submitted as late-breaking abstracts. The deadline for clinical trials abstracts is 11:59 p.m. U.S. ET, Monday, January 11, 2021. Final data for placeholder abstracts are due Thursday, February 4, 2021. Clinical trials abstract submission opens December 18, 2020. Abstract submission fees and sponsorship regulations also apply to clinical trials abstracts. Learn more.

Publication Opportunity. For consideration of simultaneous publication in an AACR journal, please contact the AACR Publishing Division at [email protected].

Presentation of Proffered Papers at the AACR Annual Meeting

Every proffered abstract that has been accepted for publication in the online Proceedings must have a corresponding presentation at the meeting. Specifically, the author listed as the presenter for an accepted proffered paper must attend the corresponding session to discuss in detail the research outlined in the published abstract, according to the specific guidelines of the session. Presentation formats for 2021 include ePosters with enhanced engagement and networking opportunities and short talks in minisymposia. If, due to unforeseen circumstances, the designated presenter is unavailable to attend the session to present the paper, he or she must contact the AACR Program Development Department to designate a coauthor to serve as the presenter. If no abstract authors are available to present the data, the presenter must withdraw the abstract immediately by contacting the AACR Program Development Department at 215-440-9300 or [email protected]. Failure to comply with these regulations pertaining to abstract presentation may result in actions including, but not limited to:

  • The withdrawal of the abstract from the session
  • The removal of the abstract from the online Proceedings
  • The loss of future sponsorship privileges for the sponsor of the abstract
  • The loss of future abstract submission/authorship privileges for the presenter of the abstract

Deadline for Withdrawal of Abstracts

Requests to withdraw regular abstracts will be accepted through Monday, February 22, 2021. Requests to withdraw late-breaking or clinical trials abstracts will be accepted through Tuesday, March 9, 2021. Withdrawal requests must be sent by email to [email protected]. Withdrawal requests must include the Abstract Control Number and title as well as an explanation of the reason for withdrawal.