Machine learning for prediction of immunotherapy efficacy in non-small cell lung cancer from simple clinical and biological data - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Poster Communications Year : 2021

Machine learning for prediction of immunotherapy efficacy in non-small cell lung cancer from simple clinical and biological data

Abstract

Background: Immune checkpoint inhibitors (ICIs) are now a therapeutic standard in advanced non-small cell lung cancer (NSCLC), but strong predictive markers for ICIs efficacy are still lack-ing. We evaluated machine learning models built on simple clinical and biological data to indi-vidually predict response to ICIs. Methods: Patients with metastatic NSCLC who received ICI in second line or later were included. We collected clinical and hematological data and studied the association of this data with disease control rate (DCR), progression free survival (PFS) and overall survival (OS). Multiple machine learning (ML) algorithms were assessed for their ability to predict response. Results: Overall, 298 patients were enrolled. The overall response rate and DCR were 15.3 % and 53%, respectively. Median PFS and OS were 3.3 and 11.4 months, respectively. In multivariable analysis, DCR was significantly associated with performance status (PS) and hemoglobin level (OR 0.58, p<0.0001; OR 1.8, p<0.001). These variables were also associated with PFS and OS and ranked top in random forest-based feature importance. Neutrophils-to-lymphocytes ratio was also associated with DCR, PFS and OS. The best ML algorithm was a random forest. It could predict DCR with satisfactory efficacy based on these three variables. Ten-fold cross-validated performances were: accuracy 0.68 ± 0.04, sensitivity 0.58 ± 0.08; specificity 0.78 ± 0.06; positive predictive value 0.70 ± 0.08; negative predictive value 0.68 ± 0.06; AUC 0.74 ± 0.03. Conclusion: Combination of simple clinical and biological data could accurately predict disease control rate at the individual level.
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Dates and versions

hal-03467615 , version 1 (06-12-2021)

Identifiers

  • HAL Id : hal-03467615 , version 1

Cite

Sébastien Benzekry, Mathieu Grangeon, Mélanie Karlsen, Pauline Fleury, Maria Alexa, et al.. Machine learning for prediction of immunotherapy efficacy in non-small cell lung cancer from simple clinical and biological data. Colloque Sciences numériques et Intelligence Artificielle pour la Santé à Aix-Marseille Université, Nov 2021, Marseille, France. 2021. ⟨hal-03467615⟩
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