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Recurrence risk factors for chronic hepatitis B virus-infected patients who achieve functional cure with pegylated

Li-Jun Chang¹, Chun-Qiu Hao², Gui-Rong Rao³

¹Department of Infectious Diseases, Yuncheng Central Hospital Affiliated to Shanxi Medical University, 3690 Hedong East Rd, Yuncheng, Shanxi Province, 044000, China.

Virology Journal

|May 19, 2025

Abstract

Background:

Hepatitis B surface antigen (HBsAg) clearance is an achievable treatment endpoint for chronic hepatitis B virus (HBV)-infected patients. Pegylated interferon-α (PEG-IFN-α) induces higher rate of HBsAg clearance than nucleos(t)ide analogues. However, the influencing factors associated with HBsAg recurrence have not been fully elucidated. The aim of this study was to evaluate the risk factors for recurrence in chronic HBV-infected patients who achieved functional cure with PEG-IFN-α-2b-based treatment.

Methods:

A multicenter retrospective study was conducted. All patients received PEG-IFN-α-2b-based therapy, achieved HBV DNA negativity and HBsAg clearance, and were followed-up for at least 48 weeks after discontinuation of medications. The demographic data, as well as virological, serological, and biochemical indicators, were collected at baseline, therapy cessation, and during followed-up. Logistic regression analysis was subsequently performed.

Results:

A total of 101 chronic HBV-infected patients who achieved HBsAg loss with PEG-IFN-α-2b-based therapy were enrolled. The median treatment time was 24.00 (14.50, 37.50) weeks, and the median consolidation time was 11.00 (0.00, 24.00) weeks. HBsAg recurrence was found in 16 patients after a median 70.00 (48.00, 96.00) week follow-up, with a cumulative recurrence rate of 15.84%. A higher platelet count was associated with a slightly increased HBsAg recurrence risk at therapy cessation, whereas a shorter consolidation time was associated with an elevated HBsAg recurrence risk during followed-up. The appearance of anti-HBs presented a robustly reduced HBsAg recurrence risk at both therapy cessation and followed-up. No HBV DNA positivity or occurrence of end-stage liver disease was observed during treatment or followed-up.

Conclusion:

The cumulative HBsAg recurrence rate was 15.84% after discontinuation of medications in chronic HBV-infected patients who achieved functional cure with PEG-IFN-α-2b-based therapy. The presence of anti-HBs reduced the HBsAg recurrence risk.

Clinical Trial Registration:

This trial is a part of ZhuFeng Project (ClinicalTrials.gov, identifier NCT04035837) and a part of E-Cure Study (ClinicalTrials.gov, identifier NCT05182463).

Keywords:

Chronic hepatitis B Functional cure Pegylated interferon-α Recurrence

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