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Antigen-specific Immune Response to Hepatitis B Virus in Utero

N

National University Health System (NUHS)

Status

Unknown

Conditions

Hepatitis B

Study type

Observational

Funder types

Other

Identifiers

NCT00845403
DSRB D/08/376

Details and patient eligibility

About

This study aims to gain an understanding of the key components of the immune response to hepatitis B present in cord blood of HBV infected mothers.

Full description

Despite the development of an effective preventive HBV vaccine, the spread of HBV virus continue, particularly in Asia, where the majority of HBV infection is acquired at birth by vertical transmission from mother to baby. HBV vertical transmission has been hypothesized to cause immune tolerance to HBV and thus promoting the subsequent HBV chronicity. Such hypothesis has never been tested and nothing is known about HBV-specific adaptive immune response occurring before birth in baby born form HBV chronically infected mothers. This study aims to gain an understanding of the key components of the immune response to hepatitis B present in cord blood of HBV infected mothers. The characterization of the HBV immune response in utero will provide informations about the cause of HBV chronicity in Asian patients in the management of baby born from HBsAg+ mothers.

Enrollment

60 estimated patients

Sex

Female

Ages

21 to 45 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Pregnant women with HBsAg+

Exclusion criteria

  • Pregnant women without HBsAg+

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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