Late-breaking abstracts

Late-breaking abstracts are intended for high-impact research that was not complete or available by the regular submission deadline, 1 November, 23:59 CET.  Submissions must present novel, time-sensitive data of major scientific importance — such as results from pivotal clinical trials or breakthrough studies — that could not have been submitted or presented earlier. Late-breaking abstracts are subject to stricter selection criteria and must include robust, final data at the time of submission. Preliminary or incomplete data will not be accepted.

Like other abstracts, the information and data must not be published elsewhere prior to the meeting.

Only abstracts that meet these standards will be considered for late-breaking presentation.

Placeholder
Authors intending to submit a late-breaking abstract are required to submit a placeholder abstract by the regular abstract submission deadline. This placeholder must include a provisional title, author list, and a brief description of the study’s objective or rationale. Final data must be submitted during the official late-breaking submission period.

Please note the following important conditions:
• Submissions that do not meet the criteria for late-breaking abstracts will be automatically rejected.
• Placeholder submission is done at the author’s own risk. Acceptance is not guaranteed, regardless of placeholder submission.
• The Scientific Committee will not respond to claims or disputes related to the acceptance or rejection of placeholder submissions.

The placeholder does not require final data but must clearly indicate the intent to submit a late-breaking abstract by answering the designated question box when selecting ‘Late-breaking’ at the beginning of the submission.

The late-breaking submission period opens on 23 December 2025. The final, updated late-breaking data must be submitted by 25 January 2026, 23:59 CET — the late-breaking deadline. Abstracts without updated data will not be considered.