Hepatitis B Antibody Persistence and Immune Response to Hepatitis B Vaccine Challenge in Previously Vaccinated Children

Summary

This study will evaluate the persistence of immunity to hepatitis B in healthy children aged 7 to 8 years, after previous vaccination with Infanrix hexa™ in the first two years of life, and also their ability to mount an immune response to the challenge dose of Engerix-B™ Kinder.

Timeline

Start

2011-04-26

Primary completion

2011-09-28

Completion

2011-09-28

Drugs

Indications