The Study of Short-range Antiviral Treatment During Pregnancy to Block Mother-to-child Transmission of Hepatitis B Virus and Withdrawal Time

July 10, 2017 updated by: Yao Xie, Beijing Ditan Hospital

The Study of Starting to Use Tenofovir Disoproxil Fumarate(TDF) Antiviral Treatment From the 32 Weeks of Gestation to Block Mother-to-child Transmission of Hepatitis B Virus(HBV MTCT) and Withdrawal Time

Pregnant women carry high HBV DNA loads before delivery, which is the most important factor leading to mother-to-child transmission of HBV. Nucleoside analogue antiviral treatment during late pregnancy can significantly reduce the incidence of HBV MTCT, but security problems of using NA treatment during pregnancy has not been eliminated, Therefore, the aim of our study is to explore the effect of starting to use Tenofovir Disoproxil Fumarate(TDF) antiviral treatment from the 32 weeks of gestation to block mother-to-child transmission of hepatitis B virus(HBV MTCT).

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

HBV MTCT is the important reason to keep high prevalence of chronic HBV infection in China; high HBV DNA loads of Pregnant women before delivery is the most important factor resulting in mother-to-child transmission of HBV, therefore, how to drop HBV DNA levels of pregnant women before delivery to the level that can markedly decrease the rate of HBV MTCT on the base of HBIG combined hepatitis b vaccine injection for newborns, which is the most important method to improve HBV MTCT. Although Nucleoside analogue antiviral treatment during late pregnancy can dramatically reduce the rate of HBV MTCT, security problems of NA treatment during pregnancy has not been demonstrated, On account of the above problems, our study is to investigate the effect of starting to use Tenofovir Disoproxil Fumarate(TDF) antiviral treatment from the 32 weeks of gestation to block mother-to-child transmission of hepatitis B virus(HBV MTCT).

Study Type

Observational

Enrollment (Anticipated)

380

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China, 100015
        • Recruiting
        • Beijing Ditan Hospital,Capital Medical University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 35 years (Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

In this study,the study population were composed of pregnant women suffering from chronic hepatitis B who had achieved HBsAg/HBeAg positive and HBV DNA > 106 copies/ml

Description

Inclusion Criteria:

  • Pregnant women who were chronic hepatitis B and had achieved HBeAg positive and HBV DNA > 106 copies/ml

Exclusion Criteria:

  • Active consumption of alcohol and/or drugs
  • Co-infection with human immunodeficiency virus, hepatitis C virus, or hepatitis D virus, HIV, etc.
  • History of autoimmune hepatitis
  • Psychiatric disease
  • Evidence of neoplastic diseases of the liver
  • without gestational hypertension, premature rupture of membranes, antepartum haemorrhage diseases or amniotic fluid piercing history during pregnancy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
control group
In this group, pregnant women with HBsAg/HBeAg positive and HBV DNA > 106 copies/ml don not use any antiviral drugs during pregnancy.
experimental group
pregnant women with HBsAg/HBeAg positive and HBV DNA > 106 copies/ml start to use Tenofovir Disoproxil Fumarate(TDF) antiviral treatment from the 32 weeks of gestation to block mother-to-child transmission of hepatitis B virus.
Drug: Tenofovir Disoproxil Fumarate
Tenofovir Disoproxil Fumarate was used for the experimental group of pregnancy women in the 32 weeks during pregnancy
Other Names:
  • TDF

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the blocking rate of vertical transmission of hepatitis B
Time Frame: seven months
At the birth of 7 months, the venous blood serum HBsAg positive was defined as the failure of the interruption of HBV mother-to-child transmission.
seven months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
anti HBs level at the age of one month and seven months
Time Frame: one month and seven months
Observing the level of anti HBs, then discussing the efficiency of personalized blocking method of HBV maternal-neonatal transmission
one month and seven months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Beijing Ditan Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2017

Primary Completion (Anticipated)

December 30, 2019

Study Completion (Anticipated)

December 30, 2019

Study Registration Dates

First Submitted

July 4, 2017

First Submitted That Met QC Criteria

July 4, 2017

First Posted (Actual)

July 6, 2017

Study Record Updates

Last Update Posted (Actual)

July 12, 2017

Last Update Submitted That Met QC Criteria

July 10, 2017

Last Verified

July 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • XMLX201706-1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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