The tandem duplicator phenotype may be a novel targetable subgroup in pancreatic cancer
Why this work is in the frame
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Bibliographic record
Abstract
Tandem duplicator phenotype (TDP) consists of distinct genomic rearrangements where tandem duplications are randomly distributed. In this study, we characterized the prevalence and outcomes of TDP in a large series of prospectively sequenced tumors from patients with pancreatic ductal adenocarcinomas (PDAC). Whole-genome sequencing (WGS) was performed in 530 PDAC cases from the PanCuRx Initiative, COMPASS and PanGen/POG trials in Canada. Of 530 cases, 52 were identified as TDP (9.8%; 13 resected, 39 advanced). Etiological subgroups of TDP included BRCA1 (n = 9), CCNE1 (n = 4), and unknown (n = 39). Presence of TDP was not prognostic in resected specimens (p = 0.77) compared with non-HRD and non-TDP cases, described as typicals. In advanced cases, when stratified for only classical subtype cases, platinum therapy was correlated with longer response in non-BRCA1 TDP vs. typicals (p = 0.0036). There was no difference in overall survival between TDP and typicals (p = 0.5).TDP represents a potential novel targetable subgroup for chemotherapy selection in PDAC.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it