Machine learning-based prognostic subgrouping of glioblastoma: A multicenter study

Document Type

Article

Publication Date

5-15-2025

Publication Title

Neuro Oncol

Abstract

BACKGROUND: Glioblastoma (GBM) is the most aggressive adult primary brain cancer, characterized by significant heterogeneity, posing challenges for patient management, treatment planning, and clinical trial stratification.

METHODS: We developed a highly reproducible, personalized prognostication, and clinical subgrouping system using machine learning (ML) on routine clinical data, magnetic resonance imaging (MRI), and molecular measures from 2838 demographically diverse patients across 22 institutions and 3 continents. Patients were stratified into favorable, intermediate, and poor prognostic subgroups (I, II, and III) using Kaplan-Meier analysis (Cox proportional model and hazard ratios [HR]).

RESULTS: The ML model stratified patients into distinct prognostic subgroups with HRs between subgroups I-II and I-III of 1.62 (95% CI: 1.43-1.84, P <  .001) and 3.48 (95% CI: 2.94-4.11, P <  .001), respectively. Analysis of imaging features revealed several tumor properties contributing unique prognostic value, supporting the feasibility of a generalizable prognostic classification system in a diverse cohort.

CONCLUSIONS: Our ML model demonstrates extensive reproducibility and online accessibility, utilizing routine imaging data rather than complex imaging protocols. This platform offers a unique approach to personalized patient management and clinical trial stratification in GBM.

Medical Subject Headings

Humans; Glioblastoma; Machine Learning; Brain Neoplasms; Prognosis; Male; Female; Middle Aged; Magnetic Resonance Imaging; Adult; Aged; Follow-Up Studies; Survival Rate; Young Adult

PubMed ID

39665363

Volume

27

Issue

4

First Page

1102

Last Page

1115

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