Abstract Types

Regular Abstracts

The time frame to submit your latest research in the cancer immunotherapy field to the 40^th Anniversary Annual Meeting for consideration as an oral abstract presentation and/or poster abstract presentation is April 23, 2025 until 5 p.m. PT on June 26, 2025.

Young Investigator Award (YIA) Abstracts

Regular Abstracts with primary and presenting authors that are students, postdoctoral research fellows, clinical fellows, or junior faculty with three or fewer years on staff and are current SITC members, may be eligible to receive a Young Investigator Award (YIA). YIA Abstracts require a letter of recommendation as well as additional information regarding the percentage of contribution by the primary and presenting author. The time frame to submit a YIA Abstract to the 40^th Anniversary Annual Meeting is April 23, 2025 until 5 p.m. PT on June 26, 2025.

Those selected for the Presidential Travel Award will be invited to give an oral abstract presentation during the Presidential Session from 8:05–9:30 a.m. on Sunday, Nov. 9, 2025 (session time subject to change). An abstract submitted for a YIA that does not receive an award may still be accepted as an abstract for SITC 2025 and will be considered a Regular Abstract. 

View more information about the YIAs, as well as the criteria and eligibility.

Late-Breaking Abstracts - Clinical Only (LBA)

Late-breaking Abstract - Clinical Only (LBA) submission is solely for abstracts with late-breaking data from interventional clinical trials in humans and not for abstracts submitted “late”. The LBA deadline is not intended to be an extension of the general submission deadline. LBAs highlight novel and practice-changing in-human clinical studies and only apply to data that would have not otherwise have been presented as an abstract at the 40^th Anniversary Annual Meeting. 

Authors of LBAs do not need to submit an application or a place-holder abstract. LBAs should be submitted during the LBA submission period, from July 16–Sept. 15 at 5 p.m. PT.

If a LBA is not accepted, it will not be published or presented at the meeting. There is no longer an option for it to be considered as a Regular/YIA Abstract.

LBAs are considered for a limited allocation of oral and poster presentation slots on either Friday, Nov. 7 or Saturday, Nov. 8.

Important Dates

Regular and Young Investigator Award (YIA) Abstract Dates

April 23, 2025
Regular and YIA Abstract Submission Site Opens

June 26, 2025
Regular and YIA Abstract Submission Site Closes at 5 p.m. PT

Aug. 1, 2025
Regular and YIA Abstract Notifications Sent

Aug. 8, 2025
Regular and YIA Abstract Presentation Acceptance Confirmations & Deadline for Regular and YIA Abstract Withdrawals (Withdrawals must be made by emailing education@sitcancer.org to indicate a withdrawal)

Oct. 3, 2025
Regular and YIA Abstract Title & Author Information Released at 9 a.m. ET

Nov. 4, 2025
Embargo Lifted & Full Regular and YIA Abstracts Made Public at 9 a.m. ET. All accepted abstracts are available in the JITC Supplement

Nov. 5–9, 2025

40^th Anniversary Annual Meeting & Pre-Conference Programs

Feb. 2026
Final Supplement Published in JITC

Late-Breaking Abstracts - Clinical Only (LBA) Dates

July 16, 2025
LBA Submission Site Opens

Sept. 15, 2025
LBA Submission Site Closes at 5 p.m. PT

Sept. 30, 2025
LBA Notifications Sent

Oct. 7, 2025
LBA Presentation Acceptance Confirmation Due & Deadline for LBA Withdrawals (Withdrawals must be made by emailing education@sitcancer.org to indicate a withdrawal)

Oct. 30, 2025
LBA Title & Author Information Released at 9 a.m. ET

Nov. 7, 2025
Embargo Lifted & LBA Made Public at 9 a.m. ET. All accepted abstracts are available in the JITC Supplement

Nov. 5–9, 2025
40^th Anniversary Annual Meeting & Pre-Conference Programs

Feb. 2026
Final Supplement Published in JITC