Telbivudine versus entecavir in patients with undetectable hepatitis B virus DNA: a randomized trial View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2017-12

AUTHORS

Jihyun An, Young-Suk Lim, Gi-Ae Kim, Seong-bong Han, Wonhee Jeong, Danbi Lee, Ju Hyun Shim, Han Chu Lee, Yung Sang Lee

ABSTRACT

BACKGROUND: Telbivudine has been suggested to induce hepatitis B surface antigen (HBsAg) decline to the similar degree as pegylated interferon. We aimed to investigate whether telbivudine could further decrease HBsAg titer in patients who maintain undetectable serum hepatitis B virus (HBV) DNA after initial entecavir treatment. METHODS: In this open-label trial, patients who had serum HBsAg and HBV DNA levels ≥1,000 IU/mL and <60 IU/mL, respectively, following entecavir (0.5 mg/day) treatment for HBeAg-positive chronic hepatitis B were randomized to either switch treatment to telbivudine (600 mg/day, n = 47) or continue entecavir (n = 50) for 48 weeks. RESULTS: The baseline characteristics were comparable between groups including HBsAg levels (median, 3.41 log10 IU/mL). All patients had undetectable HBV DNA and normal alanine aminotransferase level. At week 48, the mean change in serum HBsAg levels was not significantly different between the telbivudine and entecavir groups (-0.03 log10 IU/mL vs. -0.05 log10 IU/mL; P = 0.57). No patient experienced HBsAg seroclearance or HBsAg decline >0.5 log10 IU/mL. Eleven patients (23.4%) in the telbivudine group, but none in the entecavir group, experienced virologic breakthrough (P < 0.001). Seven patients (14.9%) exhibited genotypic resistance mutations (M204I +/- L180M) during the virologic breakthrough. CONCLUSION: Sequential therapy with entecavir followed by telbivudine resulted in a high rate of virologic breakthrough and drug-resistance without any beneficial effect on HBsAg decline. These results do not support the use of low genetic barrier drugs as a switch treatment strategy in patients who achieve virologic response with high genetic barrier drugs. TRIAL REGISTRATION: NCT01595685 (date of trial registration: May 8, 2012). More... »

PAGES

15

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s12876-017-0572-2

DOI

http://dx.doi.org/10.1186/s12876-017-0572-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1053954450

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/28103819


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49 schema:description BACKGROUND: Telbivudine has been suggested to induce hepatitis B surface antigen (HBsAg) decline to the similar degree as pegylated interferon. We aimed to investigate whether telbivudine could further decrease HBsAg titer in patients who maintain undetectable serum hepatitis B virus (HBV) DNA after initial entecavir treatment. METHODS: In this open-label trial, patients who had serum HBsAg and HBV DNA levels ≥1,000 IU/mL and <60 IU/mL, respectively, following entecavir (0.5 mg/day) treatment for HBeAg-positive chronic hepatitis B were randomized to either switch treatment to telbivudine (600 mg/day, n = 47) or continue entecavir (n = 50) for 48 weeks. RESULTS: The baseline characteristics were comparable between groups including HBsAg levels (median, 3.41 log10 IU/mL). All patients had undetectable HBV DNA and normal alanine aminotransferase level. At week 48, the mean change in serum HBsAg levels was not significantly different between the telbivudine and entecavir groups (-0.03 log10 IU/mL vs. -0.05 log10 IU/mL; P = 0.57). No patient experienced HBsAg seroclearance or HBsAg decline >0.5 log10 IU/mL. Eleven patients (23.4%) in the telbivudine group, but none in the entecavir group, experienced virologic breakthrough (P < 0.001). Seven patients (14.9%) exhibited genotypic resistance mutations (M204I +/- L180M) during the virologic breakthrough. CONCLUSION: Sequential therapy with entecavir followed by telbivudine resulted in a high rate of virologic breakthrough and drug-resistance without any beneficial effect on HBsAg decline. These results do not support the use of low genetic barrier drugs as a switch treatment strategy in patients who achieve virologic response with high genetic barrier drugs. TRIAL REGISTRATION: NCT01595685 (date of trial registration: May 8, 2012).
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