Englander Institute for Precision Medicine

Immune-inflammatory biomarkers as prognostic factors for immunotherapy in pretreated advanced urinary tract cancer patients: an analysis of the Italian SAUL cohort.

TitleImmune-inflammatory biomarkers as prognostic factors for immunotherapy in pretreated advanced urinary tract cancer patients: an analysis of the Italian SAUL cohort.
Publication TypeJournal Article
Year of Publication2021
AuthorsFornarini G, Rebuzzi SE, Banna GL, Calabrò F, Scandurra G, De Giorgi U, Masini C, Baldessari C, Naglieri E, Caserta C, Manacorda S, Maruzzo M, Milella M, Buttigliero C, Tambaro R, Ermacora P, Morelli F, Nolè F, Astolfi C, Sternberg CN
JournalESMO Open
Volume6
Issue3
Pagination100118
Date Published2021 Jun
ISSN2059-7029
KeywordsBiomarkers, Carcinoma, Transitional Cell, Humans, Immunotherapy, Italy, Lung Neoplasms, Prognosis, Urinary Bladder Neoplasms, Urologic Neoplasms
Abstract

BACKGROUND: Reliable and affordable prognostic and predictive biomarkers for urothelial carcinoma treated with immunotherapy may allow patients' outcome stratification and drive therapeutic options. The SAUL trial investigated the safety and efficacy of atezolizumab in a real-world setting on 1004 patients with locally advanced or metastatic urothelial carcinoma who progressed to one to three prior systemic therapies.

PATIENTS AND METHODS: Using the SAUL Italian cohort of 267 patients, we investigated the prognostic role of neutrophil-to-lymphocyte ratio (NLR) and systemic immune-inflammation index (SII) and the best performing one of these in combination with programmed death-ligand 1 (PD-L1) with or without lactate dehydrogenase (LDH). Previously reported cut-offs (NLR >3 and NLR >5; SII >1375) in addition to study-defined ones derived from receiver operating characteristic (ROC) analysis were used.

RESULTS: The cut-off values for NLR and SII by the ROC analysis were 3.65 (sensitivity 60.4; specificity 63.0) and 884 (sensitivity 64.4; specificity 67.5), respectively. The median overall survival (OS) was 14.7 months for NLR <3.65 [95% confidence interval (CI) 9.9-not reached (NR)] versus 6.0 months for NLR ≥3.65 (95% CI 3.9-9.4); 14.7 months for SII <884 (95% CI 10.6-NR) versus 6.0 months for SII ≥884 (95% CI 3.7-8.6). The combination of SII, PD-L1, and LDH stratified OS better than SII plus PD-L1 through better identification of patients with intermediate prognosis (77% versus 48%, respectively). Multivariate analyses confirmed significant correlations with OS and progression-free survival for both the SII + PD-L1 + LDH and SII + PD-L1 combinations.

CONCLUSION: The combination of immune-inflammatory biomarkers based on SII, PD-L1, with or without LDH is a potentially useful and easy-to-assess prognostic tool deserving validation to identify patients who may benefit from immunotherapy alone or alternative therapies.

DOI10.1016/j.esmoop.2021.100118
Alternate JournalESMO Open
PubMed ID33984678
PubMed Central IDPMC8134706

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