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  • Title: Determining Whether Prophylactic Antiviral Treatment Is Necessary in HBsAg-Negative/HBcAb-Positive Patients Receiving Allogeneic Hematopoietic Stem Cell Transplantation.
    Author: Zhang A, Wu Y, Tan Y, Shi J, Zhao Y, Hu Y, Yu J, Zheng W, Lai X, Zhang M, Zhu Y, Ye Y, Huang Y, Fu S, Huang H, Luo Y.
    Journal: Biol Blood Marrow Transplant; 2020 May; 26(5):956-964. PubMed ID: 31962163.
    Abstract:
    The incidence of hepatitis B virus (HBV) infection is high in the Asian population. Increasing attention is being given to the risk of HBV reactivation in hepatitis B core antibody-positive [HBcAb(+)] patients during immunosuppressive therapy. Knowledge of HBV reactivation in hematopoietic stem cell transplantation (HSCT) is limited. Moreover, the effect of hepatitis B surface antibody (HBsAb) on HBV reactivation in HBcAb(+) patients during HSCT remains uncertain. We sought to investigate the role of HBsAb and the need for prophylactic antiviral treatment in hepatitis B surface antigen-negative [HBsAg(-)]/HBcAb(+) patients during HSCT. We classified 665 HBsAg(-) HSCT recipients into 4 groups: HBcAb(-)HBsAb(-) (n = 189), HBcAb(-)HBsAb(+) (n = 176), HBcAb(+)HBsAb(-) (n = 49), and HBcAb(+)HBsAb(+) (n = 251). HBV reactivation was identified in 16 patients after HSCT. The median time to HBV reactivation was 645 days (range, 455 to 1957 days) after transplantation. The cumulative HBV reactivation rate was significantly higher in the HBcAb(+)HBsAb(-) group compared with the HBcAb(+)HBsAb(+), HBcAb(-)HBsAb(-), and HBcAb(-)HBsAb(+) groups, respectively (P< .001). Notably, the risk of HBV reactivation was significantly higher in the HBcAb(+)HBsAb(-) group compared with the HBcAb(+)HBsAb(+) group (P= .007; hazard ratio, 4.750; 95% confidence interval, 1.531 to 14.737). Our results point to a protective role of HBsAb in HBV-resolved patients undergoing HSCT and indicate that prophylactic anti-HBV treatment might not be mandatory for HBsAg(-), HBcAb(+)HBsAb(+) patients following HSCT. The surveillance protocol of intense follow-up early (HBV DNA and HBsAg monthly) might not be necessary.
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