1. Eligibility for Encore Abstracts
- Encore abstracts may be submitted if the work has been previously presented only in abstract form, including poster or oral presentations at other scientific meetings.
- Abstracts that have been published as a full-length manuscript in a peer-reviewed journal prior to GBCC submission are not eligible.
2. Classification of Abstracts Based on Updated Data
- Previously presented research may be submitted to GBCC, with the classification of the abstract determined by the extent of updated data.
- Abstracts containing minor updates may be classified as encore abstracts, while those incorporating major updates may be considered new abstracts.
- The final classification will be determined at the discretion of the GBCC Abstract Review Committee.
3. Major Updates Qualifying as a New Abstract
The following major updates may qualify a submission for consideration as a new abstract rather than an encore abstract:
- Introduction of new primary or secondary endpoints
- Addition of major new datasets (e.g., biomarker, genomic, imaging analyses)
- Inclusion of exploratory or extensive subgroup analyses
- Substantial analytical modifications or a new statistical analysis plan
- Addition of a new patient cohort, study arm, or multi-institutional expansion
- Any update that fundamentally alters the study findings
Abstracts incorporating such updates may be submitted as new abstracts, subject to review by the GBCC Abstract Review Committee.
4. Purpose and Rationale
The GBCC Encore Abstract Policy aligns with global oncology congress standards to:
- Provide a platform for broader dissemination of important scientific findings
- Avoid unnecessary duplication or redundancy
- Maintain consistency with ethical publication practices
- Ensure clarity and integrity in scientific communication
Encore abstracts allow previously presented research to reach a new and international audience, while maintaining respect for originality and scientific rigor.
5. Review and Session Assignment
- All submitted abstracts will be reviewed by the GBCC Abstract Review Committee to determine their eligibility and appropriate classification.
- The Committee reserves the right to reclassify abstracts as encore or new abstracts based on the extent of updated data.
- Encore abstracts are eligible for consideration for General Sessions; however, their acceptance and session assignment will be determined at the discretion of the GBCC Abstract Review Committee.