UCL researchers developed an AI that analyzes biopsy slides to identify rectal cancer patients who benefit from adding irinotecan to standard chemoradiotherapy.
Key Details
- 1AI stratified patients by tumor cell density on diagnostic biopsy slides in a post-hoc ARISTOTLE phase III trial analysis (n=414).
- 2Adding irinotecan reduced recurrence by 43% and death by 50% over 5 years in high-tumor-cell-density cases; no benefit in low-density cases.
- 3AI tool ('Octopath') enables rapid, large-scale analysis of digital pathology slides.
- 4Manual quantification was previously impractical for large studies; automation enables scalable, individualized treatment decisions.
- 5Further verification and studies are needed before clinical deployment.
Why It Matters

Source
EurekAlert
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