Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark

<h4>Introduction</h4> Programmed cell death ligand-1 (PD-L1) expression may help identify patients with non-small cell lung cancer (NSCLC) who would benefit from immunotherapy. We assessed PD-L1 expression, and epidermal growth factor receptor (EGFR) and V-Ki-Ras2 Kirsten rat sarcoma (KR...

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Main Authors: Tapashi Dalvi, Mette Nørgaard, Jon P. Fryzek, Naimisha Movva, Lars Pedersen, Hanh Pham Hansen, Jill Walker, Anita Midha, Norah Shire, Anne-Marie Boothman, James Rigas, Anders Mellemgaard, Torben R. Rasmussen, Stephen Hamilton-Dutoit, Deirdre Cronin-Fenton
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10089313/?tool=EBI
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author Tapashi Dalvi
Mette Nørgaard
Jon P. Fryzek
Naimisha Movva
Lars Pedersen
Hanh Pham Hansen
Jill Walker
Anita Midha
Norah Shire
Anne-Marie Boothman
James Rigas
Anders Mellemgaard
Torben R. Rasmussen
Stephen Hamilton-Dutoit
Deirdre Cronin-Fenton
author_facet Tapashi Dalvi
Mette Nørgaard
Jon P. Fryzek
Naimisha Movva
Lars Pedersen
Hanh Pham Hansen
Jill Walker
Anita Midha
Norah Shire
Anne-Marie Boothman
James Rigas
Anders Mellemgaard
Torben R. Rasmussen
Stephen Hamilton-Dutoit
Deirdre Cronin-Fenton
author_sort Tapashi Dalvi
collection DOAJ
description <h4>Introduction</h4> Programmed cell death ligand-1 (PD-L1) expression may help identify patients with non-small cell lung cancer (NSCLC) who would benefit from immunotherapy. We assessed PD-L1 expression, and epidermal growth factor receptor (EGFR) and V-Ki-Ras2 Kirsten rat sarcoma (KRAS) mutations in NSCLC patients receiving adjuvant chemotherapy. <h4>Methods</h4> Data for stage IB/II/IIIA NSCLC patients (diagnosed: 2001–2012) were retrieved from Danish population-based registries. Tumor tissue samples were tested for PD-L1 expression using VENTANA PD-L1 (SP263) Assay in tumor cells (TC) at ≥25% cutoff and immune cells (IC) at ≥1% and ≥25% cutoffs. KRAS and EGFR mutations were tested using PCR-based assays. Follow-up began 120 days after diagnosis until death/emigration/January 1, 2015, whichever came first. Using Cox proportional hazard regression, hazard ratios (HRs) were computed for overall survival (OS) for each biomarker, adjusting for age, sex, histology, comorbidities, and tissue specimen age. <h4>Results</h4> Among 391 patients identified, 40.4% had stage IIIA disease, 49.9% stage II, and 8.7% stage IB. PD-L1-TC was observed in 38% of patients, EGFR mutations in 4%, and KRAS mutations in 29%. KRAS mutations were more frequent among patients with PD-L1 TC≥25% versus TC<25% (37% versus 24%). OS was not associated with PD-L1 TC≥25% versus TC<25% (stage II: adjusted HR = 1.15 [95% confidence interval: 0.66–2.01]; stage IIIA: 0.72 [0.44–1.19]). No significant association was observed with OS and PD-L1-IC ≥1% and ≥25%. EGFR and KRAS mutations were not associated with a prognostic impact. <h4>Conclusion</h4> A prognostic impact for NSCLC patients receiving adjuvant chemotherapy was not associated with PD-L1 expression, or with EGFR and KRAS mutations.
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spelling doaj.art-96a68e6586004ab396c586bf8e1427652023-04-14T05:31:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01184Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in DenmarkTapashi DalviMette NørgaardJon P. FryzekNaimisha MovvaLars PedersenHanh Pham HansenJill WalkerAnita MidhaNorah ShireAnne-Marie BoothmanJames RigasAnders MellemgaardTorben R. RasmussenStephen Hamilton-DutoitDeirdre Cronin-Fenton<h4>Introduction</h4> Programmed cell death ligand-1 (PD-L1) expression may help identify patients with non-small cell lung cancer (NSCLC) who would benefit from immunotherapy. We assessed PD-L1 expression, and epidermal growth factor receptor (EGFR) and V-Ki-Ras2 Kirsten rat sarcoma (KRAS) mutations in NSCLC patients receiving adjuvant chemotherapy. <h4>Methods</h4> Data for stage IB/II/IIIA NSCLC patients (diagnosed: 2001–2012) were retrieved from Danish population-based registries. Tumor tissue samples were tested for PD-L1 expression using VENTANA PD-L1 (SP263) Assay in tumor cells (TC) at ≥25% cutoff and immune cells (IC) at ≥1% and ≥25% cutoffs. KRAS and EGFR mutations were tested using PCR-based assays. Follow-up began 120 days after diagnosis until death/emigration/January 1, 2015, whichever came first. Using Cox proportional hazard regression, hazard ratios (HRs) were computed for overall survival (OS) for each biomarker, adjusting for age, sex, histology, comorbidities, and tissue specimen age. <h4>Results</h4> Among 391 patients identified, 40.4% had stage IIIA disease, 49.9% stage II, and 8.7% stage IB. PD-L1-TC was observed in 38% of patients, EGFR mutations in 4%, and KRAS mutations in 29%. KRAS mutations were more frequent among patients with PD-L1 TC≥25% versus TC<25% (37% versus 24%). OS was not associated with PD-L1 TC≥25% versus TC<25% (stage II: adjusted HR = 1.15 [95% confidence interval: 0.66–2.01]; stage IIIA: 0.72 [0.44–1.19]). No significant association was observed with OS and PD-L1-IC ≥1% and ≥25%. EGFR and KRAS mutations were not associated with a prognostic impact. <h4>Conclusion</h4> A prognostic impact for NSCLC patients receiving adjuvant chemotherapy was not associated with PD-L1 expression, or with EGFR and KRAS mutations.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10089313/?tool=EBI
spellingShingle Tapashi Dalvi
Mette Nørgaard
Jon P. Fryzek
Naimisha Movva
Lars Pedersen
Hanh Pham Hansen
Jill Walker
Anita Midha
Norah Shire
Anne-Marie Boothman
James Rigas
Anders Mellemgaard
Torben R. Rasmussen
Stephen Hamilton-Dutoit
Deirdre Cronin-Fenton
Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
PLoS ONE
title Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
title_full Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
title_fullStr Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
title_full_unstemmed Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
title_short Biomarker expression and survival in patients with non-small cell lung cancer receiving adjuvant chemotherapy in Denmark
title_sort biomarker expression and survival in patients with non small cell lung cancer receiving adjuvant chemotherapy in denmark
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10089313/?tool=EBI
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