A PHASE IIIB, OPEN, MULTI-CENTER STUDY TO EVALUATE THE LONG-TERM ANTIBODY PERSISTENCE AT 6, 7, 8, 9 AND 10 YEARS AFTER THE ADMINISTRATION OF ONE DOSE OF MENINGOCOCCAL CONJUGATE VACCINE MENACWY-TT VERSUS ONE DOSE OF MENINGOCOCCAL POLYSACCHARIDE VACCINE MENCEVAX(REGISTERED) ACWY, AND TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF A BOOSTER DOSE OF MENACWY-TT VACCINE ADMINISTERED 10 YEARS AFTER PRIMARY VACCINATION OF 11-55 YEAR OLD SUBJECTS WITH MENACWY-TT OR MENCEVAX (REGISTERED) ACWY.

Detailed Summary

The purpose of this study is to evaluate the long-term antibody persistence from 6, 7, 8, 9 to 10 years post-administration of MenACWY-TT conjugate vaccine as compared to Mencevax ACWY when given to healthy subjects 11 to 55 years of age. In addition, the safety and immunogenicity of a booster dose of MenACWY-TT vaccine administered to all eligible subjects 10 years after the primary vaccination will be evaluated. All Filipino subjects who received the primary vaccination in the primary vaccination study 107386 (NCT00356369) will be invited to enrol in the long-term follow up and booster phase. No new subjects will be enrolled.

Study Details

Timeline

Interventions