Adjuvant chemotherapy intensity and prognosis in completely resected high-grade neuroendocrine lung carcinoma: a post hoc analysis of JCOG1205/1206.

Lung CancerJul 6, 2026 (epub)
Clinical ResearchOncology (Medical)

Tetsuya Isaka, Hirotsugu Kenmotsu, Masashi Wakabayashi et al.

✦ AI-curated · Sources linked

In 30 seconds

This post hoc analysis of the phase III JCOG1205/1206 trial evaluated the impact of adjuvant chemotherapy intensity on prognosis in 217 patients with completely resected high-grade neuroendocrine lung carcinoma. The study found that higher relative dose intensity (RDI) in the etoposide plus cisplatin (EP) regimen was associated with worse five-year relapse-free survival (RFS), indicating that high-intensity chemotherapy may not improve outcomes.

Key findings

  • Treatment completion rate was higher in the EP group at 89.0% compared to 74.1% in the IP group (P = 0.0046).
  • Five-year RFS was 66.0% for EP patients who completed treatment versus 73.3% for those who did not.
  • RDI ≥90% was linked to worse RFS in the EP arm (HR, 2.024; 95% CI, 1.081-3.787).
  • No significant associations were found for RDI in the IP arm.

Why it matters

Understanding the relationship between chemotherapy intensity and prognosis in high-grade neuroendocrine lung carcinoma can guide treatment decisions. This study suggests that maximizing chemotherapy intensity may not yield better outcomes, prompting a reevaluation of treatment strategies.

Source

PubMed · PMID 42425045

Published in Lung 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 It is not peer reviewed and is not a substitute for the original article.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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