Validation of the lung immune prognostic index in extensive-stage small cell lung cancer: Post hoc analysis of the caspian and IMpower133 phase 3 trials.

Eur J CancerJul 22, 2026 (epub)
Clinical ResearchOncology (Medical)

Edouard Auclin, Matthieu Roulleaux Dugage, Teresa Gorría et al.

✦ AI-curated · Sources linked

In 30 seconds

This validation study assessed the Lung Immune Prognostic Index (LIPI) in extensive-stage small cell lung cancer (ES-SCLC) using data from the CASPIAN and IMpower133 phase III trials. Among 1140 patients, median overall survival (OS) was 14.6 months for LIPI Good, 10.9 months for Intermediate, and 8.4 months for Poor (p < 0.0001), confirming LIPI's prognostic value in this population.

Key findings

  • LIPI was categorized as Good in 34%, Intermediate in 49%, and Poor in 17% of patients.
  • Median OS was 14.6 months for Good, 10.9 months for Intermediate, and 8.4 months for Poor LIPI (p < 0.0001).
  • LIPI remained an independent prognostic factor for OS with HR Poor vs. Good: 1.76 (95%CI: 1.45-2.15, p < 0.001).
  • Patients with poor LIPI derived limited benefit from immunotherapy.

Why it matters

The study underscores the importance of LIPI as a prognostic biomarker in ES-SCLC, providing clinicians with a tool to better stratify patients based on expected outcomes and tailor treatment approaches accordingly.

Source

PubMed · PMID 42520592

Published in Eur J Cancer. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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