Association of Pretreatment Albumin-bilirubin Grade With Hepatotoxicity and Efficacy in EGFR-TKIs Therapy for NSCLC.

Background/aim: The albumin-bilirubin (ALBI) grade is an assessment tool for hepatic function and prognosis in patients with hepatocellular carcinoma (HCC). However, its significance in patients with non-small cell lung cancer (NSCLC) treated with an epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) remains unclear. We retrospectively investigated the relationship between pre-treatment ALBI grade and hepatotoxicity and treatment efficacy in patients with NSCLC receiving EGFR-TKIs.

Patients and methods: We analyzed data from 182 patients with NSCLC treated with EGFR-TKIs. Patients were categorized into ALBI grades 1/2a and 2b/3 groups. We examined the association between ALBI grade, hepatotoxicity, and time to treatment failure (TTF) using univariate and multivariate analyses.

Results: In the univariate Kaplan-Meier analysis, ALBI grade was not associated with hepatotoxicity (log-rank p=0.56). This finding was consistent with the multivariate analysis of patients treated with gefitinib and erlotinib (n=158). However, In the univariate Kaplan-Meier analysis, the median TTF for the ALBI grade 1/2a group was 10.6 months, compared to 5.8 months for the ALBI grade 2b/3 group (hazard ratio=1.66, 95% confidence interval=1.19-2.33, p=0.003). Multivariate analysis confirmed that ALBI grade 2b/3 (hazard ratio=1.64, 95% confidence interval=1.16-2.30, p<0.01) was independently associated with shortened TTF.

Conclusion: Pretreatment ALBI grade classification can predict efficacy in patients with NSCLC treated with EGFR-TKIs.