Abstract:Objective To analyze the detection rate of serum hepatitis B virus (HBV) pregenomic RNA (HBV pgRNA) and its relationship with serological status of HBV antigens in patients receiving long-term antiviral treatment with nucleotides analogues for chronic hepatitis B.Methods A total of 150 patients with chronic hepatitis B who received long-term antiviral treatment with nucleotide analogues in our hospital from July 2020 to July 2022 were selected and divided into HBeAg positive group (n = 32) and HBeAg negative group (n = 118) based on the serological status of hepatitis B e antigen (HBeAg). According to the level of hepatitis B surface antigen (HBsAg), the patients were divided into four groups, including 32 patients with HBsAg > 1 500 IU/mL in group A, 32 patients with 100 IU/mL< HBsAg ≤ 1 500 IU/mL in group B, 32 patients with HBsAg≤ 100 IU/mL in group C, and 22 patients with negative HbsAg in group D. The detection rate of HBV pgRNA was compared among patients with different serological status of HBV antigens, and the relationship between the presence of HBV pgRNA and serological status of HBV antigens was analyzed.Results The detection rate of serum HBV pgRNA in HBeAg positive group (93.8%) was higher than that in HBeAg negative group (43.2%) (P < 0.05). The detection rates of serum HBV pgRNA in groups A and B (78.1% and 65.6%) were higher than those in groups C and D (15.6% and 0.00%) (P < 0.05).Conclusions The detection rate of serum HBV pgRNA after long-term antiviral treatment with nucleotides analogues for chronic hepatitis B is correlated with the serological status of HBV antigens (such as HbsAg and HBeAg). HBV pgRNA can be established as a biomarker to determine the transcription activity and replication status of intrahepatic HBV cccDNA after long-term antiviral treatment with nucleotides analogues for chronic hepatitis B.