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Published on: June 18, 2020
Performance of serum HBcrAg in chronic hepatitis B patients with 8-year nucleos(t)ide analogs therapy
Meng-Lan Wang1, Rong Deng1, En-Qiang Chen1
1Center of infectious diseases, West China hospital, Sichuan university, Chengdu 610041, P.R. China; Department of laboratory medicine, West China hospital, Sichuan university, Chengdu 610041, P.R. China.
Aim:
This study aimed to investigate long-term kinetics of serum hepatitis B core-related antigen (HBcrAg) and its correlation with serum hepatitis B surface antigen (HBsAg) in a real-world cohort of patients who had received over 8 years of nucleos(t)ide analogs(NAs) therapy.
Methods:
This was a retrospective study. All patients were recruited from our previous published study, who started therapy with NAs between 2007 and 2008. Serum HBcrAg and HBsAg levels were quantitatively measured at baseline, the sixth month and each year of follow-up, using the stored serum samples.
Results:
Among the 94 patients, serum HBcrAg presented a gradually decreasing trend from baseline to year 8, either in HBeAg-negative or HBeAg-positive patients. After 8 years of NAs treatment, 21.3% of patients achieved serum HBcrAg < 3 log 10 U/mL, and only baseline HBcrAg was an independent predictor. Additionally, good correlation of HBcrAg and HBsAg was observed at baseline, but this correlation weakened remarkably during treatment.
Conclusion:
Serum HBcrAg is decreasing gradually with the duration of antiviral therapy, and baseline HBcrAg level is an independent predictor of long-term HBcrAg below the limit of detection.
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