Tissue- and liquid-biopsy based NGS profiling in advanced non-small-cell lung cancer in a real-world setting: the IMMINENT study

  • 0Section of Innovation Biomedicine - Oncology Area, Department of Engineering for Innovation Medicine (DIMI), University of Verona and University and Hospital Trust/Azienda Ospedaliero-Universitaria Integrata (AOUI), Verona, Italy.

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Summary

This summary is machine-generated.

Comprehensive genomic profiling using next-generation sequencing (NGS) in advanced non-small cell lung cancer (NSCLC) reveals frequent gene alterations and provides valuable prognostic insights. Testing at initial diagnosis improves survival probabilities.

Area Of Science

  • Oncology
  • Genomics
  • Molecular Diagnostics

Background

  • Testing for driver alterations is crucial for identifying actionable therapeutic targets in non-small cell lung cancer (NSCLC).
  • Comprehensive genomic profiling (CGP) using next-generation sequencing (NGS) is increasingly important in clinical practice for advanced NSCLC.

Purpose Of The Study

  • To assess the distribution and real-world frequency of gene alterations in advanced NSCLC.
  • To correlate gene alterations with patient characteristics using NGS-based profiling.
  • To evaluate the outcomes of FoundationOne (F1CDx) and FoundationLiquid CDx (F1L/F1LCDx) in a nationwide initiative.

Main Methods

  • Utilized F1CDx (324 genes) for tissue samples and F1L (70 genes) or F1LCDx (324 genes) for liquid biopsies.
  • Analyzed data from 232 advanced NSCLC patients across 11 institutions.
  • Investigated gene alterations, tumor mutational burden (TMB), and overall survival (OS).

Main Results

  • Found alterations in 170 genes, with TP53 (58%), KRAS (22%), CDKN2A/B (19%), and STK11 (17%) being most frequent.
  • Actionability rates were comparable between tissue (36.2%) and liquid (34%) NGS assays.
  • Higher TMB was observed in smokers, and patients with ≥3 gene mutations had significantly lower median OS.

Conclusions

  • NGS-based molecular profiling of advanced NSCLC, using either tissue or blood samples, provides significant predictive and prognostic information.
  • Early genomic profiling at diagnosis correlates with improved conditional three-year survival probabilities.