The proposed study is aimed to assess the antibody response and short-term persistence of Novartis Meningococcal B Vaccine after one, two or three doses and to evaluate the optimal vaccination schedule in an adolescent population.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
1,631
Site 13: Liceo Diego Aracena de Lo Barnechea
Monseñor Escrivá de Balaguer 14630, Lo Barnechea, Santiago Metropolitan, Chile
Site 41: Colegio Antonio Hermida Fabres
Av. Coronel Alejandro Sepúlveda N° 6801, Chile
Site 43: Liceo José Victorino Lastarria
Av. Miguel Claro N° 32, Chile
Percentages of Subjects With hSBA Titer ≥1:4 After Receiving One, Two or Three Doses of rMenB+OMV NZ Vaccine.
Immunogenicity was evaluated by measuring the percentage of subjects with hSBA titter \>1:4 against 44/76-SL, 5/99, NZ98/254 strains at months 1, 2, 3.
Time frame: Month-1, 2, 3
Number of Subjects With Local Reactions and Systemic Reactions Occurring in Days 1 to 7 After Vaccination
Safety was assessed as the number of subjects who reported local and systemic reactions during day 1 to day 7 after any vaccination with rMenB+OMV
Time frame: 1 to 7 days after each vaccination
Percentages of Subjects With hSBA Titer ≥1:4 After Receiving a Booster Dose of rMenB+OMV NZ Vaccine at Month 6.
Immunogenicity was evaluated by measuring the percentage of subjects with hSBA titter \>1:4 agains 44/76-SL, 5/99, NZ98/254 strains at months 6 \& 7.
Time frame: Month-6 & 7
Percentage of Subjects With hSBA Titer ≥1:8 After Primary and Booster Vaccination.
Immunogenicity was evaluated by measuring the percentage of subjects with hSBA titer ≥1:8 against 44/76-SL, 5/99, NZ98/254 strains.
Time frame: at baseline, month-1, month-2, month-3, month-6 and month-7.
Percentages of Subjects With at Least a Fourfold Rise in hSBA Titer Over the Prevaccination and After Booster Vaccination.
Immunogenicity was evaluated by measuring the percentage of subjects with at least a fourfold rise in hSBA titer over the prevaccination and after booster vaccination against 44/76-SL, 5/99, NZ98/254 strains at month-1, month-2, month-3 and month-7.
Time frame: Month-1, month-2, month-3 and month-7
Geometric Mean Titers (GMTs) After Primary and Booster Vaccination.
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Site 51: Centro Para vacunas en Desarrollo. Hospital de Niños Roberto del Rio
Av. Prof Zañartu 1085, Chile
Site 15: Liceo Carmela Carvajal de Prat
Avda. Italia 980, Chile
Site 14: Colegio Parroquial Santa Rosa de Lo Barnechea
Avda. Raúl Labbé Nº 13.799, Chile
Site 42: Centro Educacional Eduardo de la Barra
Calle A, N° 6301, Chile
Site 61: Facultad de Medicina. Universidad de Valparaíso.
Hontaneda # 2653. Valparaíso, Chile
Site 11: Complejo Educacional Eduardo Cuevas Valdés
Lo Barnechea, Chile
Site 12: Colegio San Jose de Lo Barnechea
Santiago, Chile
Immunogenicity was evaluated by measuring the Geometric mean titers (GMTs) after primary and booster vaccination against 44/76-SL, 5/99, NZ98/254.
Time frame: month-1, month-2, month-3, month-6 and month-7
Geometric Mean Ratios (GMRs) After Primary and Booster Vaccination.
Immunogenicity was evaluated by measuring the Geometric mean ratios (GMRs) after primary and booster vaccination against 44/76-SL, 5/99, NZ98/254.
Time frame: month-1, month-2, month-3, month-6 and month-7
GMCs of Antibodies Against 287-953Antigen (ELISA) After Primary and Booster Vaccination.
Immunogenicity was evaluated by measuring the Geometric mean Concentration (GMCs) after primary and booster vaccination against Antigen 287-953 Antigen.
Time frame: month-1, month-2, month-3, month-6 and month-7
GMRs of Antibodies Against 287-953Antigen (ELISA) After Primary and Booster Vaccination
Immunogenicity was evaluated by measuring the Geometric mean Ratios (GMRs) after primary and booster vaccination against 287-953Antigen
Time frame: month-1, month-2, month-3, month-6 and month-7
Number of Subjects Reporting Unsolicited AEs Throughout the Study.
Safety was assessed as the number of subjects who reported unsolicited AEs throughout the study.
Time frame: Throughout the study