Antibody Persistence and Booster Dose Response in Subjects Who Received Menactra® Three Years Earlier in Study MTA26

Summary

Study will evaluate the persistence of antibodies approximately three years after an initial dose of Menactra® vaccine in toddlers who participated in study MTA26 (NCT00643916) and age-matched Menactra naive participants. Objectives: * To assess the persistence of antibody responses three years after one or two doses of Menactra® vaccine in subjects who participated in study MTA26. * To describe the antibody responses to a single dose of Menactra® vaccine in subjects who had previously received one or two doses of Menactra® vaccine and in Menactra® vaccine-naïve subjects. * To describe the safety profile of a single dose of Menactra® vaccine in subjects.

Timeline

Start

2008-06

Primary completion

2009-02

Completion

2009-03

Drugs

Indications