Predictors of Nucleos(t)ide Analogues Discontinuation Relapse: Hepatitis B Virus RNA versus Hepatitis B Surface Antigen
JCPSP-JOURNAL OF THE COLLEGE OF PHYSICIANS AND SURGEONS PAKISTAN(2024)
摘要
Objective: To compare the predictive value of hepatitis B virus (HBV) RNA and HBsAg quantification upon discontinuation of nucleos(t)ide analogues (NAs) therapy for clinical and virological relapse in chronic hepatitis B (CHB). Study design: Observational study. Place and Duration of the Study: Department of Infectious Diseases and Hepatology, The Second Hospital of Shandong University, Jinan, China, from July 2014 to December 2020. Methodology: CHB patients received single NAs and discontinued treatment following appropriate standards. HBsAg quantification was conducted using the i2000 Chemiluminescent Immunoassay (CLIA) Analyser, while serum HBV RNA quantification was performed using specific RNA target capture and simultaneous amplification and testing. The main observational endpoints included virological relapse and clinical relapse. Results: Eighty-one patients were recruited, with 15 patients achieving HBsAg loss at cessation. Twenty-nine individuals encountered virological relapse, while 13 patients experienced clinical relapse. Thirty-one patients achieved HBsAg <100 IU/ml at NAs cessation, among whom 26 achieved undetectable HBV RNA, while four patients suffered virological relapse (15.4%). Serum HBV RNA emerged as an independent determinant of virological relapse (HR 1.850), clinical relapse (HR 2.020), and HBsAg loss after NAs cessation (HR 0.138). The presence of HBsAg <100 IU/ml at cessation did not serve as a predictor for virological relapse and clinical relapse. Conclusion: Lower HBV RNA levels predict a better off-treatment response. Discontinuation of prolonged NAs therapy appears as a viable and safe choice for patients with undetectable HBV RNA. In comparison to HBV RNA, HBsAg <100 IU/ml at cessation did not show sufficient predictive value for virological relapse and clinical relapse.
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关键词
HBV RNA,Hepatitis B surface antigen,Chronic hepatitis B,Relapse
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