Low anti-HBc levels are associated with lower risk of virological relapse after nucleos(t)ide analogue cessation in HBe antigen-negative patients
- PMID: 36152268
- DOI: 10.1111/liv.15433
Low anti-HBc levels are associated with lower risk of virological relapse after nucleos(t)ide analogue cessation in HBe antigen-negative patients
Abstract
Background and aims: Low anti-HBc serum levels at the time of therapy cessation were linked to a higher relapse risk in predominantly HBeAg-positive cohorts. We investigated the association of anti-HBc levels with relapse in HBeAg-negative patients.
Methods: Serum levels of anti-HBc, HBsAg and HBcrAg were determined in 136 HBeAg-negative patients, participating in a vaccination trial (ABX-203, NCT02249988), before treatment cessation or vaccination. Importantly, vaccination showed no impact on relapse. The correlation between the biomarkers and their predictive value for relapse (HBV DNA >2000 IU/ml ± ALT >2xULN) was investigated.
Results: After therapy cessation 50% (N = 68) of patients relapsed. Median anti-HBc prior to treatment stop was significantly higher among relapsers compared to off-treatment responders (520 IU/ml vs. 330 IU/mL, p = .0098). The optimal anti-HBc cut-off to predict relapse was 325 IU/ml according to the Youden-Index. About 35% of patients with anti-HBc level < 325 IU/ml versus 60% of those with values ≥325 IU/mL relapsed (p = .0103; sensitivity 50%, specificity 75%). Combining the optimal cut-offs of HBsAg (>3008 IU/mL) or HBcrAg (≥1790 U/ml) with anti-HBc increased the proportion of patients with relapse to 80% (p < .0001) and 74% (p = .0006), respectively.
Conclusion: In contrast to predominantly HBeAg-positive cohorts, in our cohort of HBeAg-negative patients lower anti-HBc levels are associated with a significantly lower relapse risk after nucleos(t)ide analogue cessation. The vast majority of included patients were either genotype B or C and the applicability to other genotypes has to be further evaluated. However, anti-HBc level as an indicator of the host response might be prospectively further explored for prediction models.
Keywords: chronic hepatitis B; nucleos(t)ide analogue; treatment cessation; virological relapse.
© 2022 The Authors. Liver International published by John Wiley & Sons Ltd.
Comment in
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Anti-HBc level predicting virological relapse after stopping nucleos(t)ide analogue in chronic hepatitis B.Liver Int. 2023 Apr;43(4):947-948. doi: 10.1111/liv.15536. Epub 2023 Feb 17. Liver Int. 2023. PMID: 36732913 No abstract available.
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Reply to the letter "Anti-HBc level predicting virological relapse after stopping nucleos(t)ide analogue in chronic hepatitis B".Liver Int. 2023 Apr;43(4):949. doi: 10.1111/liv.15551. Epub 2023 Mar 8. Liver Int. 2023. PMID: 36825356 No abstract available.
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