Abstract
Purpose
The aim of this study is to verify if baseline hematological markers, in patients with advanced melanoma receiving BRAF inhibitor (BRAFi)-based therapies, are independently associated with progression free survival (PFS) and overall survival (OS).
Methods
We retrospectively analyzed 90 patients with metastatic melanoma harboring BRAF V600 mutation, who received treatment with either BRAFi alone or combined with a MEK inhibitor (MEKi) at the recommended dosages. Study population included 28 women and 62 men. Median age was 53 years. Seventy-three (82%) patients presented with M1c disease, 49 (56%) had elevated LDH and 54 (60%) had three or more metastatic sites.
Results
The median PFS was 9.1 and 3.5 months, respectively, for patients with baseline NLR < 5 and NLR ≥ 5, while median OS was 17.2 and 5.5 months, respectively, for patients with NLR < 5 and NLR ≥ 5. Multivariate analysis confirmed that baseline NLR < 5 was significantly associated with half risk of relapse (HR = 0.49; 95% CI = 0.28–0.85; p = 0.01) and half risk of death (HR = 0.46; 95% CI = 0.23–0.76; p = 0.004), independent of age, sex, stage, LDH > 2xULN, previous treatments, concomitant use of steroids and type of therapy. In patients with LDH ≥ ULN, NLR < 5 remained significantly and independently associated with improved PFS (HR = 0.28; 95% CI = 0.13–0.62; p = 0.002,) and OS (HR = 0.23; 95% CI = 0.10–0.55; p = 0.001).
Conclusions
These biomarkers are easily reproducible, affordable and costless and NLR could help to identify patients who have the best benefit from BRAF inhibitors.
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Dr Emilia Cocorocchio: honoraria from Roche, Novartis; Dr Pier Francesco Ferrucci: honoraria from BMS, Roche, Novartis, MSD, Piere-Fabre; the other authors declare that they have no conflict of interest.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with human participants or animals performed by any of the authors.
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Cocorocchio, E., Martinoli, C., Gandini, S. et al. Baseline neutrophil-to-lymphocyte ratio (NLR) is associated with outcome of patients treated with BRAF inhibitors. Clin Transl Oncol 22, 1818–1824 (2020). https://doi.org/10.1007/s12094-020-02320-y
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DOI: https://doi.org/10.1007/s12094-020-02320-y