ArticleCancer management and research2025
Diffuse and Strong TTF-1 Expression Predicts Response to Pemetrexed-Based Immunochemotherapy in Advanced Lung Adenocarcinoma.
Article in Cancer management and research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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
3 citing papers in PubMed.
- Predictive value of TTF-1 expression for stratifying outcomes between dual ICI and chemoimmunotherapy in patients with PD-L1-negative NSCLC.International journal of clinical oncology · 2026Article
- Prognostic Effect of TTF-1 Expression and Histopathology in the Patients with Advanced Lung Adenocarcinoma Treated with Immunochemotherapy.The Kobe journal of medical sciences · 2026Article
- Consistency analysis of programmed cell death ligand-1/thyroid transcription factor-1 dual staining in malignant pleural effusion and lung adenocarcinoma histology specimens.Journal of thoracic disease · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: Thyroid transcription factor-1 (TTF-1) is a good prognostic factor for non-small cell lung carcinoma (NSCLC). It is unclear how much TTF-1 staining is sufficient to predict therapeutic response in immunochemotherapy. We evaluated the cut-off of TTF-1 considering the percentage of positive cells and staining intensity as a predictive factor. Patients and Methods: We conducted a retrospective multicenter study of patients with advanced lung adenocarcinoma or NSCLC favor adenocarcinoma treated with immunochemotherapy. One pathologist centrally examined the immunohistochemical staining of TTF-1 using 8G7G3/1 and provided scores of 0-5 based on the staining intensity and ratio. Results: We analyzed 95 patients. As TTF-1 has previously been shown to be a predictive factor for pemetrexed, there were significant differences in PFS of patients treated with pemetrexed-based immunochemotherapy between TTF-1 scores of 5 (diffuse and strong staining) and ≤4, but not between 0 (no staining) and 2-4 (partial or weak staining). We defined a TTF-1 score of ≥5 as positive for the predictive factor and the positivity ratio was 61.1%. Patients who tested negative for TTF-1 had a significantly higher proportion of programmed death ligand 1 (PD-L1) tumor proportion score (TPS) <1%. Excluding mutation-positive patients, PFS in TTF-1 positivity was significantly longer than in negativity (8.0 and 5.9, hazard ratio (HR): 0.58 (0.34-0.98), p = 0.04), while TTF-1 negativity was not inferior to positivity in PFS with taxane-based immunochemotherapy. Patients treated with pemetrexed-based immunochemotherapy who tested positive for TTF-1 had significantly longer PFS than those who tested negative (HR: 0.51 (0.27-0.99), p = 0.045) in the multivariate analysis incorporating age, PD-L1, PS, and TTF-1. Conclusion: Diffuse and strong TTF-1 positivity may be useful for the predictive factor for pemetrexed-based immunochemotherapy. TTF-1 staining may be desirable to develop a more optimal immunochemotherapy for lung adenocarcinoma.
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.