In This Section

Abstracts

Regular abstracts are no longer being accepted for this conference. The regular abstract submission deadline was Monday, December 1, 2025. All abstracts submitted by the Monday, December 1, deadline will be considered for poster presentation. Additionally, oral presentations of highly rated abstracts will be integrated within thematic sessions.

Clinical Trial and Late-Breaking Abstract Submission Deadline: Tuesday, January 20, 2026, 1 p.m. ET (opens Monday, January 5, 2026)

ABSTRACT CATEGORIES

  • Adaptive Immunity in Tumors
  • Adoptive Cell Therapy
  • Antibodies
  • Antigens
  • CAR T
  • Cellular Therapy
  • Combination Immunotherapies
  • Cytokines
  • Endogenous Antitumor Immunity
  • Epigenetic Regulation of Tumor Immunity
  • Immune Checkpoints
  • Immune Mechanisms
  • Immune Monitoring
  • Immune Regulation
  • Immune Response
  • Immune Suppression
  • Immunology
  • Immunomodulatory
  • Immunotherapy
  • Inflammation
  • Innate Immunity
  • Microbiome
  • Other
  • TILs
  • Tumor Antigenicity
  • Vaccines

REGULAR ABSTRACTS

Regular abstracts are no longer being accepted for this conference. The regular abstract submission deadline was Monday, December 1, 2025. All abstracts submitted by the Monday, December 1, deadline will be considered for poster presentation. Additionally, oral presentations of highly rated abstracts will be integrated within thematic sessions.

CLINICAL TRIAL ABSTRACTS

Individuals interested in submitting a clinical trial abstract for presentation at the conference must do so through the AACR online abstract submission service that will be available on this page on Monday, January 5, 2026. The clinical trial abstract submission deadline is Tuesday, January 20, 2026, at 1 p.m. ET. Only those abstracts that are deemed to be of high scientific priority will be accepted. Clinical trial abstracts will be considered for both oral and poster presentations.

LATE-BREAKING ABSTRACTS

Individuals interested in submitting a late-breaking abstract for presentation at the conference must do so through the AACR online abstract submission service that will be available on this page on Monday, January 5, 2026. The late-breaking abstract submission deadline is Tuesday, January 20, 2026, at 1 p.m. ET. All late-breaking abstract submissions should detail highly significant and timely findings that were not available at the time of the regular abstract deadline. Only those abstracts that are deemed to be of high scientific priority will be accepted. Late-breaking abstracts will be considered for both oral and poster presentations.

RELEASE DATE FOR REGULAR, CLINICAL TRIAL, AND LATE-BREAKING ABSTRACTS

Regular, clinical trial, and late-breaking abstract titles and authors (no data) will be available on the AACR website on Wednesday, February 9, 2026, at 1 p.m. ET.

Regular abstracts (submitted for the December 1 deadline) selected for presentation during the conference (poster or oral) will be published as a freely available supplement in the AACR journal Cancer Immunology Research and in the conference app at 12 p.m. ET, on Wednesday, February 18, 2026—with the exception of abstracts selected for inclusion in the AACR press program.

Clinical trial and late-breaking abstracts (submitted for the January 20 deadline) will be publicly available to download through the conference app at 12 p.m. ET, on Wednesday, February 18, 2026—with the exception of abstracts selected for inclusion in the AACR press program.

Abstracts selected for inclusion in the AACR press program (regular, clinical trial, or late-breaking) will be publicly available to download through the conference app at the date and time that their press embargo lifts.

Abstracts will not be available before these dates.

Please note that no changes can be made after abstract submission. Authors are fully responsible for the accuracy of their submitted abstract. Abstracts should be carefully prepared and thoroughly proofread prior to submission, as any errors may appear in print and online.

Every effort will be made to reproduce the content of the abstracts as submitted, except in certain circumstances where changes may be made to comply with AACR style.

Notification of abstract status

All individuals listed as abstract presenters will be notified of acceptance or rejection by email approximately 5 (five) weeks after the abstract submission deadline. Notices and instructions will be sent to the email address provided at the time of abstract submission. If an abstract is not selected for presentation, the presenter may request a full refund of the registration fee by contacting the AACR Meetings Department at [email protected]. 

All individuals listed as abstract presenters of clinical trial or late-breaking abstracts will be notified of acceptance or rejection by email approximately two (2) weeks after the abstract submission deadline. Notices and instructions will be sent to the email address provided at the time of abstract submission. If an abstract is not selected for presentation, the presenter may request a full refund of the registration fee by contacting the AACR Meetings Department at [email protected].

All poster and oral talk presentations must be made in person.

ENCORE ABSTRACTS

Encore presentations are only permitted for clinical trial abstracts that are submitted for the January 20, 2026, clinical trial abstract submission deadline. During the submission process, authors of encore clinical trial abstracts must provide the date and name of the meeting at which the original trial abstract was presented.

REGISTRATION AND ACCOMMODATIONS 

Individuals planning on presenting an abstract at this conference are encouraged to register and make a room reservation at the conference hotel as early as possible. If an abstract is not accepted for presentation at the conference, the presenter may request a full refund of the registration fee. For additional information, please visit the registration and accommodations and travel webpages. 

REQUEST FOR WITHDRAWAL

Once an abstract has been submitted, it may be withdrawn only by written request from the abstract presenters. The request may be emailed to [email protected] and must be received by 5 p.m. ET on January 16, 2026.