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- W3192726943 abstract "The development and clinical implementation of evidence-based precision medicine strategies has become a realistic possibility, primarily due to the rapid accumulation of large-scale genomics and pharmacological data from diverse model systems: patients, cell-lines and drug perturbation studies. We introduce a novel Bayesian modeling framework called the i ndividualized the R apeutic inde x (iR x ) model to integrate high-throughput pharmacogenomic data across model systems. Our iR x model achieves three main goals: first, it exploits the conserved biology between patients and cell-lines to calibrate therapeutic response of drugs in patients; second, it finds optimal cell line avatars as proxies for patient(s); and finally, it identifies key genomic drivers explaining cell line-patient similarities. This is achieved through a semi-supervised learning approach, that conflates (unsupervised) sparse latent factor models with (supervised) penalized regression techniques. We propose a unified and tractable Bayesian model for estimation, and inference is conducted via efficient posterior sampling schemes. We illustrate and validate our approach using two existing clinical trial datasets in multiple myeloma and breast cancer studies. We show that our iR x model improves prediction accuracy compared to naive alternative approaches, and it consistently outperforms existing methods in literature in both in multiple simulation scenarios as well as real clinical examples." @default.
- W3192726943 created "2021-08-16" @default.
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- W3192726943 date "2021-08-10" @default.
- W3192726943 modified "2023-09-23" @default.
- W3192726943 title "A Bayesian Precision Medicine Framework for Calibrating Individualized Therapeutic Indices in Cancer" @default.
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- W3192726943 doi "https://doi.org/10.1101/2021.08.09.455722" @default.
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