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- W3201523330 abstract "Background: Advanced Head and Neck Squamous Cell Cancer (HNSCC) is associated with a poor prognosis, and biomarkers that predict response to treatment are highly desirable. The primary aim was to predict Progression Free Survival (PFS) with a multivariate risk prediction model. Methods: Blood samples from 56 HNSCC patients were prospectively obtained within a Phase 2 clinical trial ( NCT02633800 ), before and after the first treatment cycle of platinum-based chemotherapy, to identify biological covariates predictive of outcome. A total of 42 baseline covariates were derived pre-treatment, which were combined with 29 covariates after one cycle of treatment. These covariates were ranked and selected by Bayesian multivariate regression to form risk scores to predict PFS, producing baseline and combined risk prediction models respectively. Results: The baseline model comprised of CD33+CD14+ monocytes, Double Negative B cells and age, in a weighted risk signature which predicted PFS with a concordance index (C-index) of 0.661. The combined model composed of baseline CD33+CD14+ monocytes, baseline Tregs, after-treatment changes in CD8 effector memory T cells, CD8 Central memory T cells and CD3 T Cells, along with the hypopharyngeal primary tumor subsite. This weighted risk signature exhibited an improved C-index of 0.757. There was concordance between levels of CD33+CD14+ myeloid cells in tumor tissue, as demonstrated by imaging mass cytometry, and peripheral blood in the same patients. This monocyte subpopulation also had univariate predictive value (log-rank p value = 0.03) but the C-index was inferior to the combined signature. Conclusions: This immune-based combined multimodality signature, obtained through longitudinal peripheral blood monitoring, presents a novel means of predicting response early on during the treatment course. Funding: Daiichi Sankyo Inc, Cancer Research UK, EU IMI2 IMMUCAN, UK Medical Research Council, European Research Council (335326), National Institute for Health Research and The Institute of Cancer Research." @default.
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- W3201523330 date "2021-09-23" @default.
- W3201523330 modified "2023-10-03" @default.
- W3201523330 title "Predicting Progression Free Survival after Systemic Therapy in Advanced Head and Neck Cancer: Bayesian regression and Model development" @default.
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- W3201523330 doi "https://doi.org/10.1101/2021.09.22.21263942" @default.
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