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Is there any prognostic significance in pleural involvement and/or effusion in patients with ALK-positive NSCLC?

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Abstract

Purpose

Anaplastic lymphoma kinase (ALK) mutations occurs in approximately 3–5% of patients with non-small cell lung cancer (NSCLC). Pleural involvement/effusion is common in ALK-positive patients with NSCLC at baseline. The aim of the study was to evaluate the characteristics of ALK-positive patients who have Ple-I/E.

Methods

In this multicenter study, patients with ALK-positive NSCLC who have Ple-I/E were retrospectively analyzed. Clinical and demographic characteristics of the disease, response rates, median progression-free survival (PFS), and overall survival (OS) were evaluated in 362 ALK-positive patients with NSCLC.

Results

Of the patients, 198 (54.7%) were male. The median age at the time of diagnosis was 54 (range 21–85) years. All patients’ histology was adenocarcinoma (100%). At baseline, 57 (15.7%) patients had Ple-I/E. There was no association between Ple-I/E and gender, lung metastasis, or distant lymphadenopathy (LAP) metastasis. The frequencies of liver, brain, and bone metastases were significantly higher in ALK-positive patients without Ple-I/E compared to those with Ple-I/E (respectively 18.2% vs 4.8%, p = 0.008; 19.1% vs 4.8%, p = 0.001; 20.6% vs 8.9%, p = 0.002). The median PFS was longer in ALK-positive patients who had Ple-I/E (18.7 vs 10.6 months, p = 0.017). Similarly, the median OS was longer in ALK-positive patients who had Ple-I/E (44.6 vs 22.6 months, p = 0.051).

Conclusion

Brain, liver, and bone metastases were lower in ALK-positive patients with Ple-I/E. Patients presented with Ple-I/E were prone to have better PFS and OS.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

Authors

Contributions

All the authors contributed substantially to the study conception, design. Material preparation and data collection were performed by GG, BYA, FBB, AD, PG, UD, PFY, FÇŞ, BÇ, İÇ, AÖ, HŞC, EÇ, AI, ÖFÖ, AMT, MK, TŞ, YE, TK. Statistical analysis was performed by SK. The first draft of the manuscript was written by GG and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Gürkan Güner.

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Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This study was conducted in accordance with the Declaration of Helsinki and approved by the institutional review boards at each of the participating centers.

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Güner, G., Aktaş, B.Y., Başal, F.B. et al. Is there any prognostic significance in pleural involvement and/or effusion in patients with ALK-positive NSCLC?. J Cancer Res Clin Oncol 149, 13271–13277 (2023). https://doi.org/10.1007/s00432-023-05190-3

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  • DOI: https://doi.org/10.1007/s00432-023-05190-3

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