Characteristics and Treatment Outcomes in Advanced-Stage Non-Small Cell Lung Cancer Patients with a KRAS G12C Mutation : A Real-World Study

About 15% of patients with non-small cell lung cancer (NSCLC) harbor the Kirsten rat sarcoma homolog G12C mutation (KRASG12C). Selective KRASG12C inhibitors offer new treatment opportunities, but little is known about the prevalence, characteristics, and outcomes of standard-of-care treatment (SOC) in this population. We retrospectively assessed the clinicopathological features of patients with KRASG12C-mutated advanced NSCLC and responses to SOC at two high-volume centers in Austria. Out of 2495 NSCLC patients tested, we identified 174 patients with advanced-stage disease carrying a KRASG12C mutation. Most patients were ≥65 years old (55%), heavy smokers (55%), and presented with comorbidities. The most frequent co-alteration was TP53 (18%). PD-L1 expression was high (TPS ≥ 50%) in 31%, very high (TPS ≥ 90%) in 11%, and negative in 31% of patients. A total of 138 patients (79%) received oncologic systemic treatment. The most common first-line therapy (1 L) was anti-PD-1/PD-L1 plus platinum-based chemotherapy. Median overall survival measured from 1 L treatment was 15.3 months (95% CI, 8.6-21.9), 9.4 (95% CI, 5.3-13.5) from 2 L treatment, and 8.4 (95% CI, 1.7-15.1) from 3 L treatment. The time-to-next-treatment was 8.4 (95% CI, 5.2-11.6) from 1 L and 6.1 (95% CI, 2.7-9.7) months from 2 L to 3 L. These poor outcomes underscore the need for the implementation of new treatment options and for specific molecular testing.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Journal of clinical medicine - 11(2022), 14 vom: 15. Juli

Sprache:

Englisch

Beteiligte Personen:

Illini, Oliver [VerfasserIn]
Fabikan, Hannah [VerfasserIn]
Hochmair, Maximilian Johannes [VerfasserIn]
Weinlinger, Christoph [VerfasserIn]
Krenbek, Dagmar [VerfasserIn]
Brcic, Luka [VerfasserIn]
Setinek, Ulrike [VerfasserIn]
Terbuch, Angelika [VerfasserIn]
Absenger, Gudrun [VerfasserIn]
Konjić, Selma [VerfasserIn]
Valipour, Arschang [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
KRAS
KRAS G12C mutation
Lung cancer
NSCLC
Real-world data

Anmerkungen:

Date Revised 31.07.2022

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/jcm11144098

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM344076539