Objective: To show the effect of programmed cell death protein-1ligand (PDL-1) level on survival times in patients with metastatic non-small cell lung cancer (mNSCLC) receiving chemotherapy, to determine the relationship between PDL-1 level, neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR).
Material And Methods: The data of 158 patients who received chemotherapy for mNSCLC were evaluated retrospectively. Clinical and demographic data, PDL-1 expression levels and follow-up periods of the patients were recorded. The patients were divided into 2 groups according to PDL-1 levels.
Results: In all patients, progression free survival (PFS) was 5.6 months and overall survival (OS) was 18.8 months. Patients with low PDL-1 had a longer PFS than patients with high PDL-1 (p:0.038). In the gemcitabine and taxane groups, patients with low PDL-1 had a longer PFS than patients with high PDL-1 (p:0.047). There was a significant correlation between NLR and PDL-1 levels. In the groups with high PDL-1, patients with low NLR levels had higher OS than patients with high NLR level (p:0.043). Also, there was a significant difference between the OS patients with low and high PLR levels (p:0.520).
Conclusion: In patients with mNSCLC whose PDL-1 levels and NLR levels are low, immunogenic chemotherapies such as gemcitabine and taxane can be tried as an alternative treatment.
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| http://dx.doi.org/10.5152/TurkThoracJ.2021.21151 | DOI Listing |
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