Association of PD-L1 expression with driver gene mutations and clinicopathological characteristics in non-small cell lung cancer : A real-world study of 10 441 patients

© 2024 The Authors. Thoracic Cancer published by John Wiley & Sons Australia, Ltd..

BACKGROUND: Programmed death ligand-1 (PD-L1) expression is a well-known predictive biomarker of response to immune checkpoint blockade in non-small cell lung cancer (NSCLC). However, there is limited evidence of the relationship between PD-L1 expression, clinicopathological features, and their association with major driver mutations in NSCLC patients in Latin America.

METHODS: This retrospective study included patients from Argentina with advanced NSCLC, and centralized evaluation of PD-L1 expression concurrently with genomic alterations in the driver genes EGFR, ALK, ROS1, BRAF, and/or KRAS G12C in FFPE tissue samples.

RESULTS: A total of 10 441 patients with advanced NSCLC were analyzed. Adenocarcinoma was the most frequent histological subtype (71.1%). PD-L1 expression was categorized as PD-L1 negative (45.1%), PD-L1 positive low-expression 1%-49% (32.3%), and PD-L1 positive high-expression ≥50% (22.6%). Notably, current smokers and males were more likely to have tumors with PD-L1 tumor proportion score (TPS) ≥50% and ≥ 80% expression, respectively (p < 0.001 and p = 0.013). Tumors with non-adenocarcinoma histology had a significantly higher median PD-L1 expression (p < 0.001). Additionally, PD-L1 in distant nodes was more likely ≥50% (OR 1.60 [95% CI: 1.14-2.25, p < 0.01]). In the multivariate analysis, EGFR-positive tumors were more commonly associated with PD-L1 low expression (OR 0.62 [95% CI: 0.51-0.75], p < 0.01), while ALK-positive tumors had a significant risk of being PD-L1 positive (OR 1.81 [95% CI: 1.30-2.52], p < 0.01).

CONCLUSIONS: PD-L1 expression was associated with well-defined clinicopathological and genomic features. These findings provide a comprehensive view of the expression of PD-L1 in patients with advanced NSCLC in a large Latin American cohort.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Thoracic cancer - 15(2024), 11 vom: 15. Apr., Seite 895-905

Sprache:

Englisch

Beteiligte Personen:

Ruiz, Gonzalo [VerfasserIn]
Enrico, Diego [VerfasserIn]
Mahmoud, Yamil D [VerfasserIn]
Ruiz, Alan [VerfasserIn]
Cantarella, María Florencia [VerfasserIn]
Leguina, Laura [VerfasserIn]
Barberis, Mariana [VerfasserIn]
Beña, Asunción [VerfasserIn]
Brest, Esteban [VerfasserIn]
Starapoli, Solange [VerfasserIn]
Mendoza Bertelli, Andrea [VerfasserIn]
Tsou, Florencia [VerfasserIn]
Pupareli, Carmen [VerfasserIn]
Coppola, María Pía [VerfasserIn]
Scocimarro, Alejandra [VerfasserIn]
Sena, Susana [VerfasserIn]
Levit, Patricio [VerfasserIn]
Perfetti, Aldo [VerfasserIn]
Aman, Enrique [VerfasserIn]
Girotti, María Romina [VerfasserIn]
Arrieta, Oscar [VerfasserIn]
Martín, Claudio [VerfasserIn]
Salanova, Rubén [VerfasserIn]

Links:

Volltext

Themen:

Anaplastic Lymphoma Kinase
B7-H1 Antigen
Driver mutations
EC 2.7.10.1
ErbB Receptors
Genomic alterations
Immunohistochemistry (IHC)
Journal Article
Non‐small cell lung cancer (NSCLC)
Programmed death‐ligand 1 (PD‐L1)
Protein-Tyrosine Kinases
Proto-Oncogene Proteins

Anmerkungen:

Date Completed 16.04.2024

Date Revised 25.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/1759-7714.15244

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369459938