Real-world PD-L1 testing, first-line therapy for advanced NSCLC, and first-line pembrolizumab monotherapy utilization and outcomes for metastatic NSCLC in the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00179906%3A_____%2F25%3A10498749" target="_blank" >RIV/00179906:_____/25:10498749 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11130/25:10498749 RIV/00216208:11140/25:10498749 RIV/00216208:11150/25:10498749 RIV/65269705:_____/25:00083723 and 4 more

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=5_NlBKVa0k" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=5_NlBKVa0k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.48095/ccko2025192" target="_blank" >10.48095/ccko2025192</a>

Result language

angličtina

Original language name

Real-world PD-L1 testing, first-line therapy for advanced NSCLC, and first-line pembrolizumab monotherapy utilization and outcomes for metastatic NSCLC in the Czech Republic

Original language description

Background: This study aimed to describe real-world PD-L1 testing and first-line (1L) treatment patterns for advanced non-small cell lung cancer (NSCLC), and clinical outcomes for metastatic NSCLC after 1L pembrolizumab monotherapy became reimbursed in the Czech Republic (February 2019). Patients and methods: This descriptive noninterventional study drew on two Czech lung cancer registries. We examined PD-L1 testing patterns and results in the KELLY registry for samples submitted on/after 1-Feb-2019 from adult patients with advanced NSCLC. Using the TULUNG registry, we summarized 1L targeted therapies initiated on/after 1-Feb-2019 for advanced NSCLC, in addition to characteristics and outcomes for patients treated with 1L pembrolizumab monotherapy for metastatic NSCLC, PD-L1 tumor proportion score (TPS) &gt;= 50%, and no known EGFR/ALK alterations. Real-world time on treatment (rwToT) and overall survival (OS) were determined using Kaplan-Meier curves. The data cutoff was 16-Sept-2021. Results: The percentage of NSCLC samples in the KELLY registry tested for PD-L1 expression increased from 70.5% in 2019 to 84.4% in 2021. Pembrolizumab monotherapy was the most common 1L targeted therapy in 2019-2021 for patients with advanced NSCLC and PD-L1 TPS &gt;= 50% (N = 315), administered to 70-80% each year. Of 235 patients with metastatic NSCLC who re-ceived 1L pembrolizumab monotherapy, median age was 69 years, 54% were men, 52% were current smokers, and 28% had squamous NSCLC. Median rwToT was 8.5 months (95% CI; 6.7-10.1), with 6- and 12-month on-treatment rates of 59% and 36%, respectively, for 199 patients with &gt;= 6 months of follow-up. With added national registry mortality data, estimated median OS was 13.7 months (12.3-17.7); 6- and 12-month OS rates were 70% and 59%, respectively. Conclusions: The rates of PD-L1 testing increased from 2019 to 2021. Median OS among patients with metastatic NSCLC and PD-L1 TPS &gt;= 50% treated with pembrolizumab was lower than in clinical trials, likely due to differences between real-world patients and trial participants in age, smoking status, performance status, and squamous histology.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

30203 - Respiratory systems

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Klinická onkologie

ISSN

0862-495X

e-ISSN

1802-5307

Volume of the periodical

38

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

192-200

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-105013074831