HBsAg quantification: useful for monitoring natural history and treatment outcome
Version of Record online: 23 DEC 2013
© 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
Special Issue: Proceedings of the 7th Paris Hepatitis Conference International Conference of the Management of Patients with Viral Hepatitis, 13–14 January 2014, Paris, France. Guest Editors: Patrick Marcellin and Tarik Asselah. The publication of this supplement was supported by an unrestricted educational grant from Gilead, Janssen Therapeutics, Janssen, Bristol-Myers Squibb, Roche, Boehringer Ingelheim, Merck, AbbVie, Novartis, Idenix and Alios.
Volume 34, Issue Supplement s1, pages 97–107, February 2014
How to Cite
Martinot-Peignoux, M., Lapalus, M., Asselah, T. and Marcellin, P. (2014), HBsAg quantification: useful for monitoring natural history and treatment outcome. Liver International, 34: 97–107. doi: 10.1111/liv.12403
- Issue online: 23 DEC 2013
- Version of Record online: 23 DEC 2013
- Manuscript Accepted: 7 NOV 2013
- Manuscript Received: 23 OCT 2013
- HBV tools;
- personalized medicine;
The template of hepatitis B virus transcription, the covalently closed circular DNA (cccDNA), plays a key role in the life cycle of the virus and permits the persistence of infection. It has been suggested that hepatitis B surface antigen (HBsAg) quantification reflects the concentration of cccDNA in the liver. In hepatitis B e antigen (HBeAg) positive chronic hepatitis B, HBsAg levels are higherduring the immune tolerance phase than during the immune clearance phase. During the natural history of chronic hepatitis B, serum HBsAg declines progressively from the immune-tolerant to the low replicative phase. In HBeAg negative patients, the combination of low hepatitis B virus (HBV) DNA (<2000 IU/ml) and low HBsAg levels (<1000 IU/ml) can predict inactive carrier status, low risk of hepatocellular carcinoma, and the probability of HBsAg loss. HBsAg in combination with HBV DNA predicts the outcome of Peg-Interferon therapy: An absence of decline at week 12 is a good predictor of non-response and to stop therapy. Any decline at week 24, suggests that therapy should be continued to 48 weeks. Although the decrease in HBsAg decline slow with nucleos(t)ide analogue therapy, a rapid decline can predict future HBsAg seroclearance. A level <100 IU/ml during six consecutive months could be a marker of a sustained response after treatment cessation.