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Sanmamed MF, Perez-Gracia JL, Schalper KA, Fusco JP, Gonzalez A, Rodriguez-Ruiz ME, Oñate C, Perez G, Alfaro C, Martín-Algarra S, Andueza MP, Gurpide A, Morgado M, Wang J, Bacchiocchi A, Halaban R, Kluger H, Chen L, Sznol M, Melero I. Changes in serum interleukin-8 (IL-8) levels reflect and predict response to anti-PD-1 treatment in melanoma and non-small-cell lung cancer patients. Ann Oncol 2018; 28:1988-1995. [PMID: 28595336 DOI: 10.1093/annonc/mdx190] [Citation(s) in RCA: 287] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Surrogate biomarkers of efficacy are needed for anti-PD1/PD-L1 therapy, given the existence of delayed responses and pseudo-progressions. We evaluated changes in serum IL-8 levels as a biomarker of response to anti-PD-1 blockade in melanoma and non-small-cell lung cancer (NSCLC) patients. Patients and methods Metastatic melanoma and NSCLC patients treated with nivolumab or pembrolizumab alone or nivolumab plus ipilimumab were studied. Serum was collected at baseline; at 2-4 weeks after the first dose; and at the time-points of response evaluation. Serum IL-8 levels were determined by sandwich ELISA. Changes in serum IL-8 levels were compared with the Wilcoxon test and their strength of association with response was assessed with the Mann-Whitney test. Accuracy of changes in IL-8 levels to predict response was estimated using receiver operation characteristics curves. Results Twenty-nine melanoma patients treated with nivolumab or pembrolizumab were studied. In responding patients, serum IL-8 levels significantly decreased between baseline and best response (P <0.001), and significantly increased upon progression (P = 0.004). In non-responders, IL-8 levels significantly increased between baseline and progression (P = 0.013). Early changes in serum IL-8 levels (2-4 weeks after treatment initiation) were strongly associated with response (P <0.001). These observations were validated in 19 NSCLC patients treated with nivolumab or pembrolizumab (P = 0.001), and in 15 melanoma patients treated with nivolumab plus ipilimumab (P <0.001). Early decreases in serum IL-8 levels were associated with longer overall survival in melanoma (P = 0.001) and NSCLC (P = 0.015) patients. Serum IL-8 levels also correctly reflected true response in three cancer patients presenting pseudoprogression. Conclusions Changes in serum IL-8 levels could be used to monitor and predict clinical benefit from immune checkpoint blockade in melanoma and NSCLC patients.
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Affiliation(s)
- M F Sanmamed
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - J L Perez-Gracia
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,CIBERONC (Centro de Investigación Biomedica en Red de Cáncer)
| | - K A Schalper
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.,Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - J P Fusco
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Gonzalez
- CIBERONC (Centro de Investigación Biomedica en Red de Cáncer).,Department of Biochemistry, Clínica Universidad de Navarra, Pamplona, Spain
| | - M E Rodriguez-Ruiz
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Oncología (CIBERONC), Spain
| | - C Oñate
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - G Perez
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - C Alfaro
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,CIBERONC (Centro de Investigación Biomedica en Red de Cáncer)
| | - S Martín-Algarra
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - M P Andueza
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Gurpide
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - M Morgado
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - J Wang
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - A Bacchiocchi
- Department of Dermatology, Yale University School of Medicine, New Haven, USA
| | - R Halaban
- Department of Dermatology, Yale University School of Medicine, New Haven, USA
| | - H Kluger
- Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - L Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - M Sznol
- Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - I Melero
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,Department of Biochemistry, Clínica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Oncología (CIBERONC), Spain
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