Abstract
In this study, we investigated whether plasma cytokine/chemokine levels could predict HBsAg loss or clinical relapse (CR) after stopping nucleos(t)ides analogue (NA) treatment. Theplasma cytokines/chemokines levels were measured at 0, 4, 8, 12, 24 and 48 weeks after NA discontinuation by using the enzyme-linked immunoassay (ELISA) kit. Cox regression analysis revealed that CXCL13 level at the end of treatment (EOT) was an independent predictor for CR (HR 0.26, p < 0.001) and HBsAg loss (HR 3.01, p = 0.008) after treatment cessation. Among the patients with EOT CXCL13 level < 80 pg/ml, the cumulative incidences of CR and HBsAg loss were 65% and 0% at 4 years, respectively. As for the patients with EOT CXCL13 level ≥ 1000 pg/ml, 47.5% cases had HBsAg loss. Our study showed that EOT CXCL13 level was associated with off-treatment response, which may be used to guide cessation of NA treatment in clinical practice.
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