Hepatitis D, Transmission
Conditions
Brief summary
HBV can be transmitted from mother-to-child, with a risk increasing according to maternal HBV DNA during pregnancy. HDV is a defective virus using HBs Ag for its own replication. Nucleosides analogues have only a minor impact on quantitative HBs Ag level. Data about vertical HDV transmission are old, justifying a new study.
Detailed description
Hepatitis B Virus (HBV) can be transmitted from mother-to-child, with a risk increasing according to maternal HBV DNA viral load during the last trimester of pregnancy. Nucleosides analogues, lamivudine, telbivudine, or nucleotides analogues, tenofovir DF decrease HBV mother-to-child transmission risk, and are recommended in Guidelines (EASL 2012) for pregnant women with HBV DNA above 1,000 000 I.U/mL. HDV is a defective virus using HBs Ag for its own replication. HDV-HBV co-infection is a re-emerging infectious disease in western countries, due to immigration of people coming from endemic areas. Nucleosides analogues have only a minor impact on quantitative HBs Ag level (Boyd A et al. AIDS Research and Human Retroviruses 2013). Data about vertical HDV transmission are old (Rizzetto, et al. J Med Virol 1982), before a large use of nucleosides/nucleotides analogues in HBV infected pregnant women, justifying a new study.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* children born in the Maternity Department, Lariboisiere Hospital, * from HBV-HDV co-infected women * with a positive HDV RNA during pregnancy in the pregnant woman
Exclusion criteria
* negative HDV RNA during pregnancy in the pregnant woman
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Hepatitis D antibodies (Ab) in children | up to 10 years (expected average: 5 years) | Antibodies (Ab) against Hepatitis D Virus (HDV) |
Secondary
| Measure | Time frame |
|---|---|
| HDV RNA in children with positive HDV Ab | up to 10 years (expected average: 5 years) |
Countries
France