• Hsiao-Hui Tsou, Hung-Chih Yang, Chin-Fu Hsiao, Chao A Hsiung, Tsang-Wu Liu, Mei-Hsing Chuang, Hsiao-Yu Wu, Ya-Ting Hsu, Chiung-Wen Tsui, Pei-Jer Chen, Ann-Lii Cheng, Chiun Hsu, and Taiwan Cooperative Oncology Group.
• Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan.
• J Formos Med Assoc. 2020 Jan 1; 119 (1 Pt 2): 335-344.

Background/PurposeHepatitis B virus (HBV) reactivation may occur in >10% of patients with lymphoma and resolved HBV infection who undergo rituximab-containing chemotherapy. Preventive strategies may have marked impact on resource allocation in HBV endemic areas. This study aims to compare the cost-effectiveness between prophylactic antiviral therapy and HBV DNA monitoring for the prevention of HBV-related complications.MethodsData sources are studies of HBV-related events and survival for patients with lymphoma and resolved HBV infection published since 2006. Decision tree analysis was used to compare the incremental cost-effectiveness ratio (ICER) of preventing HBV-related death or liver decompensation for patients who undergo first-line rituximab-containing chemotherapy. Sensitivity analysis was performed to examine the impact of the preventive efficacy, the duration of prophylactic antiviral therapy, and the cost of different interventions. The direct medical cost was derived from the database of the NHI Administration, Taiwan. The time frame of our analysis was set to 3 years after the completion of chemotherapy.ResultsThe median ICER of prophylactic antiviral therapy, according to current practice guidelines, ranged between USD 150,000 and 250,000 if we apply the guidelines generally. When a long-course (12 months after completion of chemotherapy according to clinical guidelines) prophylactic therapy was assumed, Option A was cheaper and more effective only in the anti-HBs-negative subgroup (median ICER US$149,932 vs. US$161,526, p = 0.013).ConclusionIdentification of anti-HBs-negative subgroups is critical to improve the cost-effectiveness of prophylactic antiviral therapy in lymphoma patients with resolved HBV infection.Copyright © 2019 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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