Prevention of Hepatitis B Virus (HBV) Mother-to-Child (MTC) Transmission by Serovaccination of Newborns and Use of Tenofovir DF During the Last Trimester of Pregnancy in Mothers With HBV DNA Above 100, 000 I.U/mL
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- 入组人数
- 37
- 试验地点
- 1
- 主要终点
- Rate of chronically infected (positive HBs Ag) children born from mothers with HBV DNA above 100, 000 I.U/mL being given tenofovir during the last trimester of pregnancy.
研究概览
简要总结
The risk of vertical HBV transmission is related to HBV DNA level in pregnant women, around 30% in women with HBV DNA above 1, 000 000 I.U/mL despite serovaccination of newborns. Using tenofovir DF during the last trimester of pregnancy allows to reduce the risk, but data from Western countries are needed.
详细描述
The prevalence of HBs Ag carriage in pregnant women varies in France, according to the native country, with higher rates in those originating from sub-Saharan Africa and Asia (5 to 8% in Parisian area). The level of HBV DNA varies according to HBe status and geographical origin, and is strongly predictive of the risk of HBV mother-to-child transmission (MTCT). The rate of vertical transmission (Yuan J et al. J Viral Hepatitis 2006) was 0% in newborns to mothers with HBV DNA less than 100,000 copies/mL and up to more than 40% in newborns to mothers with HBV DNA above 8 Log10 copies/mL, despite serovaccination at birth, thus justifying the use of tenofovir DF during the last trimester of pregnancy in highly viraemic pregnant women, as mentionned in EASL 2012 Guidelines. Data are needed concerning the results of this strategy in western countries, justifying this prospective study.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •pregnant women
- •positive for HBs Ag
- •HBV DNA above 100,000 I.U/mL
排除标准
- •HIV co-infection
- •HDV co-infection
- •requiring, according to the physician's decision, a treatment for herself and not only to prevent HBV MTC transmission
研究组 & 干预措施
tenofovir
tenofovir DF one pill (245 mg) per day from week 28 of pregnancy to week 12 after birth
干预措施: Tenofovir DF (Drug)
结局指标
主要结局
Rate of chronically infected (positive HBs Ag) children born from mothers with HBV DNA above 100, 000 I.U/mL being given tenofovir during the last trimester of pregnancy.
时间窗: At 9 months after birth
次要结局
未报告次要终点
研究者
Célia Lloret-Linares, MD PhD
Professor at Paris VII University (Denis Diderot), physician
Hopital Lariboisière