Kinetics and Predictors of Hepatitis B Surface Antigen Loss After Commencing Hepatitis B Virus (HBV)–Active Antiretroviral Therapy in the Setting of HIV and Chronic HBV Coinfection

Abstract

Background. An effective therapeutic strategy for hepatis B virus (HBV) cure remains an urgent unmet need. We aimed to define the incidence, kinetics, and predictors of hepatitis B surface antigen (HBsAg) loss in people with HIV and HBV (PWH-HBV) following HBV-active antiretroviral therapy (ART) in PWH-HBV in Asia. Methods. 97 PWH-HBV commencing HBV-active ART were recruited prospectively in Thailand (n = 94) and Malaysia (n = 3), then followed for 24 months. Time to HBV serology change was calculated. Univariate associations between baseline characteristics and HBsAg loss were examined using the Mann-Whitney or chi-square tests. Multivariable analysis was undertaken using Cox regression. Re..