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Telbivudine during the second and third trimester of pregnancy interrupts hbv intrauterine transmission: a systematic review and meta-analysis.

Clin Lab. 2014;60(4):571-86.

Lu YPLiang XJXiao XMHuang SMLiu ZWLi JHocher BChen YP.

BECKGROUND:

Evaluate the efficacy and safety of telbivudine during the 2nd and 3rd trimester of pregnancy in intrauterine transmission of hepatitis B virus (HBV). Based on the principle of Cochrane systematic reviews, a database was constructed from Medline, EMBASE, Cochrane Library, the US National Science Digital Library (NSDL), the China Biological Medicine Database (CBM-disc), and contact with Chinese experts in the field from November 2006 to February 2013.

METHODS:

The Critical Appraisal Skills Programme (CASP) of Oxford, Cochrane Collaboration’s tool, and Review Manager Version 5.0 (Rev-Man 5.0) for assessing the quality of clinical trials, risk of bias, and statistical analysis was used. We analyzed the effects and safety of telbivudine treatment on intrauterine mother-to-child transmission (MTCT) of HBV from HBsAg and HBV-DNA positive mothers. All newborns received an immune prophylaxis schedule consisting of simultaneous hepatitis B virus vaccine and hepatitis B immunoglobulin (HBIG) postpartum. Of 32 studies, 7 studies fulfilled the inclusion criteria in the study.

RESULTS:

Either the Mantel-Haenszel or Inverse Variance fixed-effects model or Mantel-Haenszel or Inverse Variance random-effects model was applied for all analyses indicated by odds ratio (OR) and 95% confidence interval (CI). The meta-analysis based on new onset of HBsAg seropositivity of infants at 6-12 months postpartum revealed that the control group had an intrauterine transmission rate of 8.25-42.31%. This rate was reduced to 0-14.29% in the telbivudine treatment group (OR 0.09, 95% CI 0.04-0.22, including seven trials, p < 0.001). The rates of intrauterine transmission based on new onset of HBV DNA seropositivity of infants at 6-12 months postpartum were 8.25-19.23% in the control group and 0 – 3.57% in the treatment group (OR 0.07, 95% CI 0.02-0.22, p < 0.001, including only five trials, since two trials had no data on HBV DNA in infants). With the exception of CK elevations, adverse effect frequencies were similar in both groups.

CONCLUSIONS:

Telbivudine is an effective and safe drug for preventing intrauterine transmission of HBV.

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