Effect of antibiotic treatment on immune checkpoint inhibitors efficacy in patients with advanced non-small cell lung cancer

Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved..

BACKGROUND: Gut microbiotaplays a crucial role in immune response. Recent data have shown that antibiotic (ATB) usage influences efficacy of immune check point inhibitors (ICIs) via altering microbiota of the gut.

METHODS: We retrospectively analyzed patients with advanced non-small cell lung cancer (NSCLC) treated with ICIs as monotherapy or combination with chemotherapy (ChT) at the one academic center. Those receiving ATB for the first 12 weeks of the initiation of ICIs were compared with those who did not. The primary objective of this study was to assess the impact of ATB use on overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) during ICIs therapy.

RESULTS: 90 patients were included in our analysis. Of these 90 patients, 27 (30%) received ATB in the first 12 weeks of the treatment. In patients who received ATB in the first 12 weeks of ICIs administration, PFS was significantly shorter (4.9 vs. 24.8 months, HR 2.52, 95% CI (1.52-4.18), p < 0.001). OS was also significantly shorter (5.4 vs. 37.8 months, HR 2.55, 95% CI (1.48-4.40), p = 0.001). We also examined the impact of ATB on ORR. Exposure to ATB for the first weeks consistently worsened the response rate; the ORR was 25.9% in the ATB group and 55.6% in the no ATB group (p = 0.01).

CONCLUSION: Our findings demonstrated that the use of antibiotics around ICIs initiation was associated with decreased OS, PFS, and ORR in patients with NSCLC. This suggests that microbiota diversity may be one of the factors predicting the efficacy of ICIs.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:184

Enthalten in:

Lung cancer (Amsterdam, Netherlands) - 184(2023) vom: 08. Okt., Seite 107347

Sprache:

Englisch

Beteiligte Personen:

Alkan Şen, Gülin [VerfasserIn]
Şentürk Öztaş, Nihan [VerfasserIn]
Değerli, Ezgi [VerfasserIn]
Can, Günay [VerfasserIn]
Turna, Hande [VerfasserIn]
Özgüroğlu, Mustafa [VerfasserIn]

Links:

Volltext

Themen:

Anti-Bacterial Agents
Antibiotics
Immune Checkpoint Inhibitors
Immune check point inhibitors
Journal Article
Non small cell lung cancer

Anmerkungen:

Date Completed 19.09.2023

Date Revised 26.09.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.lungcan.2023.107347

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM360960685