ArticleThoracic cancer2026
Delayed Occurrence of Lung Cancer Leptomeningeal Metastasis and Era-Associated Post-LM Survival: A 14-Year Single-Center Cohort Study.
Article in Thoracic cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
Abstract
introductionLeptomeningeal metastasis (LM) is a devastating complication of lung cancer. We investigated the clinical and molecular evolution of LM in the modern targeted-therapy era and factors associated with post-LM survival.
methodsWe retrospectively analyzed 201 patients with cytologically confirmed lung cancer LM diagnosed between November 2012 and May 2026. Patients were classified by LM diagnosis date (2012-2016 vs. 2017-2026). Intervals from lung cancer and Stage IV diagnosis to LM were compared using the Mann-Whitney U test. Paired primary tumor and cerebrospinal fluid (CSF) molecular profiles were assessed in 80 patients. Overall survival (OS) was evaluated using Kaplan-Meier and prespecified multivariable cox analyses.
resultsAdenocarcinoma accounted for 93.0% of cases. The intervals from lung cancer and Stage IV diagnosis to LM were longer in the later cohort (23.7 vs. 13.8 months, p < 0.001; 17.4 vs. 10.4 months, p = 0.002). Unadjusted OS from LM diagnosis did not differ significantly between eras (9.8 vs. 11.3 months, p = 0.864). Tissue-CSF driver discordance occurred in 7/80 patients (8.75%). In multivariable analysis, later diagnostic era, smoking, and ECOG PS ≥ 2 were associated with higher mortality (adjusted HR, 1.826, p = 0.014; 1.847, p = 0.014; and 1.674, p = 0.007, respectively), whereas post-LM third-generation EGFR-TKI exposure was associated with lower mortality (adjusted HR, 0.385; p < 0.001).
conclusionThe later era was associated with a longer interval to LM diagnosis but no statistically significant improvement in unadjusted post-LM OS. Adjusted associations require cautious interpretation because of residual confounding and post-baseline treatment bias. CSF profiling may provide clinically relevant information beyond primary tumor genotyping.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.