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First-line single-agent pembrolizumab for PD-L1-positive (tumor proportion score ≥ 50%) advanced non-small cell lung cancer in the real world: impact in brain metastasis: a national French multicentric cohort (ESCKEYP GFPC study)

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Abstract

Background

Few real-world data are available in patients with advanced metastatic non-small cell lung cancer (NSCLC) treated with first-line immunotherapy, particularly in those with brain metastases at treatment initiation.

Methods

This was a national, retrospective, multicenter study that consecutively included all patients with PD-L1-positive (tumor proportion score ≥ 50%) advanced NSCLC who initiated first-line treatment with pembrolizumab as a single agent between May 2017 (date of availability of pembrolizumab in this indication in France) to November 22, 2019 (approval of the pembrolizumab-chemotherapy combination). Data were collected from medical records with local response assessment.

Results

The cohort included 845 patients and 176 (20.8%) had brain metastases at diagnosis. There were no significant differences in outcomes for patients with and without brain metastases: 9.2 (95% CI 5.6–15) and 8 (95% CI 6.7–9.2, p = 0.3) months for median progression-free survival (PFS) and, 29.5 (95% CI 17.2–NA) and 22 (95% CI 17.8–27.1, p = 0.3) months for median overall survival (OS), respectively. Overall response rates were 47% and 45% in patients with and without cerebral metastases. In multivariate analysis, performance status 2–4 vs. 0–1 and neutrophil-to-lymphocyte ratio ≥ 4 vs. < 4 were the main independent negative factors for OS; brain metastasis was not an independent factor for OS.

Conclusion

In this large multicenter cohort, nearly 20% of patients initiating pembrolizumab therapy for advanced NSCLC had cerebral metastases. There was no significant difference in response rates, PFS and OS between patients with and without brain metastases.

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Availability of data and material

Datasets analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

No funding was received for conducting this study.

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Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by RD, LG, CC and CD. The first draft of the manuscript was written by RD, CC and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Christos Chouaïd.

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Conflict of interest

L. Greillier reports grants, personal fees and non-financial support from AstraZeneca, Boehringer Ingelheim, Roche, Sanofi Aventis, Bristol-Myers Squibb, Merck Sharp & Dohme, Lilly, Novartis, Pfizer, Takeda, Bayer and Amgen, outside the submitted work. C. Chouaid reports grants, personal fees and non-financial support from AstraZeneca, Boehringer Ingelheim, GSK, Roche, Sanofi Aventis, Bristol-Myers Squibb, Merck Sharp & Dohme, Lilly, Novartis, Pfizer, Takeda, Bayer and Amgen, outside the submitted work. C. Decroisette reports personal fees and non-financial support from AstraZeneca, Boehringer Ingelheim, Roche, Sanofi Aventis, Bristol-Myers Squibb, Merck Sharp & Dohme, Lilly, Novartis, Pfizer, Takeda, and Amgen, outside the submitted work. M. Pérol reports personal fees and non-financial support from Roche, Eli Lilly, Pfizer, Boehringer Ingelheim, Merck Sharp & Dohme, Bristol-Myers Squibb, Novartis, AstraZeneca, Takeda, Gritstone, Sanofi, GlaxoSmithKline, Amgen, Chugai, Illumina, Daïchi-Sankyo and Abbvie outside the submitted work. R. Descourt reports personal fees and non-financial support from AstraZeneca, Roche, Bristol-Myers Squibb, Merck Sharp & Dohme, Pfizer, Takeda, and Chugai, outside the submitted work. C. Ricordel, J.B. Auliac, L. Falchero, R. Gervais, R. Veillon, S. Vieillot, F. Guisier, M. Marcq, G. Justeau, L. Bigay-Game, M. Bernardi, P. Fournel, H. Doubre, J. Pinsolle and K. Amrane report no conflict of interest.

Ethical approval

The study conformed to the principles of the Declaration of Helsinki and Good Clinical Practice Guidelines. It was approved by a national independent Ethics Committee (2019-A02073-54, on December, 11, 2019).

Consent to participate

Patients received written and oral information on the study and gave their consent to participate in the study and for the use of their medical data for research purposes.

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Descourt, R., Greillier, L., Perol, M. et al. First-line single-agent pembrolizumab for PD-L1-positive (tumor proportion score ≥ 50%) advanced non-small cell lung cancer in the real world: impact in brain metastasis: a national French multicentric cohort (ESCKEYP GFPC study). Cancer Immunol Immunother 72, 91–99 (2023). https://doi.org/10.1007/s00262-022-03232-2

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  • DOI: https://doi.org/10.1007/s00262-022-03232-2

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