Abstract
Background
Systemic inflammatory scores may aid prognostication and patient selection for trials. We compared five scores in advanced pancreatic adenocarcinoma (PDAC).
Methods
Unresectable/metastatic PDAC patients enrolled in the Comprehensive Molecular Characterisation of Advanced Pancreatic Ductal Adenocarcinoma for Better Treatment Selection trial (NCT02750657) were included. Patients had pre-treatment biopsies for whole genome and RNA sequencing. CD8 immunohistochemistry was available in a subset. The neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio, Prognostic Nutritional Index, Gustave Roussy Immune Score (GRIm-S), and Memorial Sloan Kettering Prognostic Score (MPS) were calculated. Overall survival (OS) was estimated using Kaplan–Meier methods. Associations between inflammatory scores, clinical/genomic characteristics, and OS were analysed.
Results
We analysed 263 patients. High-risk NLR, GRIm-S and MPS were poorly prognostic. The GRIm-S had the highest predictive ability: median OS 6.4 vs. 10 months for high risk vs. low-risk (P < 0.001); HR 2.26 (P < 0.001). ECOG ≥ 1, the basal-like subtype, and low-HRDetect were additional poor prognostic factors (P < 0.01). Inflammatory scores did not associate with RNA-based classifiers or homologous recombination repair deficiency genotypes. High-risk MPS (P = 0.04) and GRIm-S (P = 0.02) patients had lower median CD8 + tumour-infiltrating lymphocytes.
Conclusions
Inflammatory scores incorporating NLR have prognostic value in advanced PDAC. Understanding immunophenotypes of poor-risk patients and using these scores in trials will advance the field.
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Data availability
All RNA sequencing data have been deposited in the European Genome-Phenome Archive (EGA) at EGAD00001009409.
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Acknowledgements
This study was conducted with the support of the Ontario Institute for Cancer Research (PanCuRx Translational Research Initiative) through funding provided by the Government of Ontario, the Wallace McCain Centre for Pancreatic Cancer supported by the Princess Margaret Cancer Foundation, Pancreatic Cancer Canada, the Terry Fox Research Institute, and the Canadian Cancer Society Research Institute.
Funding
This study was funded by the Ontario Institute for Cancer Research (PanCuRx Translational Research Initiative), the Princess Margaret Cancer Foundation, Pancreatic Cancer Canada, a Canadian Cancer Society Research Institute grant (702316), and charitable donations from the Canadian Friends of the Hebrew University (Alex U. Soyka) and the Lebovic Chair in Hepatobiliary/Pancreatic Surgical Oncology.
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LXM: conceptualisation, data curation, investigation and writing (original draft, review and editing). YW: data curation, investigation and writing (original draft, review and editing). OE-G: formal analysis and writing (review and editing). MJA: data curation, investigation and writing (original draft, review and editing). GHJ: data curation, investigation and writing (original draft, review and editing). AZ: data curation, investigation and writing (original draft, review and editing). AD: data curation, investigation and writing (original draft, review and editing). SR: data curation, investigation and writing (original draft, review and editing). SH: data curation, investigation and writing (original draft, review and editing). MT: investigation and writing (original draft, review and editing). RR: investigation and writing (original draft, review and editing). JB: investigation and writing (original draft, review and editing). JW: data curation, investigation and writing (original draft, review and editing). FN: data curation, investigation and writing (original draft, review and editing). SEF: data curation, investigation and writing (original draft, review and editing). GZ: investigation and writing (original draft, review and editing). SG: data curation, investigation, resources and funding acquisition and writing (original draft, review and editing). RCG: data curation, investigation and writing (original draft, review and editing). RK: data curation, investigation and writing (review and editing). NC: data curation, investigation and writing (review and editing). BTG: data curation, investigation and writing (review and editing). JJK: data curation, investigation, resources and funding acquisition and writing (original draft, review and editing). GMO’K: conceptualisation, data curation, investigation, resources and funding acquisition and writing (original draft, review and editing). The final manuscript was approved by all authors.
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This study was performed in accordance with the Declaration of Helsinki. The study was approved by the University Health Network Research Ethics Board.
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Ma, L.X., Wang, Y., Espin-Garcia, O. et al. Systemic inflammatory prognostic scores in advanced pancreatic adenocarcinoma. Br J Cancer (2023). https://doi.org/10.1038/s41416-023-02214-0
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DOI: https://doi.org/10.1038/s41416-023-02214-0