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Partial virological response to entecavir in treatment-naive patients with chronic hepatitis B.

Authors
 Chae Yoon Chon ; Young Eun Chon ; Sang Hoon Ahn ; Kwang-Hyub Han ; Do Young Kim ; Jun Yong Park ; Eun Hee Choi ; Dong Hwan Kim ; Kwan Sik Lee ; Ki Tae Yoon3, Mong Cho ; Ja Kyung Kim ; Jeong Heo ; Chun Kyon Lee ; Seung Up Kim 
Citation
 Antiviral Therapy, Vol.16(4) : 469~477, 2011 
Journal Title
 Antiviral Therapy 
ISSN
 1359-6535 
Issue Date
2011
Abstract
BACKGROUND: The proposed definition of a partial virological response (PVR) to nucleos(t)ide analogue therapy in the 2009 European Association for the Study of the Liver (EASL) guidelines is based on limited evidence, especially in terms of the cutoff HBV DNA level and the time point at which to judge it. This study assessed optimal PVR criteria for predicting virological response (VR) at week 96 in treatment-naive patients with chronic hepatitis B (CHB) receiving entecavir (ETV). METHODS: A total of 175 patients (126 men, 49 women) who completed 96 weeks of first-line ETV therapy were prospectively recruited. For predicting VR at week 96, the area under the receiver operating characteristic curve (AUC) was used to find the optimal time point and the Youden index was used to calculate the optimal cutoff HBV DNA level. RESULTS: After 96 weeks of ETV therapy, 139 (79.4%) patients achieved VR. The AUC at week 48 was significantly better than that at week 24 for predicting VR at week 96 (P=0.023). The optimal cutoff HBV DNA level at week 48 was 35 IU/ml. Forty-one (23.4%) patients met this PVR criteria of ETV (HBV DNA level >35 IU/ml at week 48). CONCLUSIONS: An HBV DNA level >35 IU/ml at week 48 is the optimal PVR criteria for predicting non-VR at week 96 in treatment-naive patients with CHB who are receiving ETV. This study supports the proposed EASL PVR for ETV based on scientific evidence.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94091
DOI
10.3851/IMP1772
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Biostatistics
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
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Link
 http://www.intmedpress.com/journals/avt/article.cfm?id=1772&pid=88&sType=AVT
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