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Study of the Safety and Immunogenicity of Catch-up Vaccination With a 21-valent Pneumococcal Conjugate Vaccine (PCV21) in Healthy Infants, Toddlers, Children, and Adolescents
Sponsor: Sanofi Pasteur, a Sanofi Company
Summary
The purpose of this study is to evaluate the safety and immunogenicity of PCV21 versus 20vPCV ( 20-valent pneumococcal conjugate vaccine, Prevnar 20) for catch-up vaccination in infants (7 to 11 MoA-Months of age), toddlers (12 to 23 MoA), and children/adolescents (2 to 5 YoA and 6 to 17 YoA-years of age).
Official title: A Phase 3, Randomized, Modified Double-blind, Active-controlled, Parallel-group Study to Investigate the Safety and Immunogenicity of Catch-up Vaccination Regimens of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants, Toddlers, Children, and Adolescents
Key Details
Gender
All
Age Range
7 Months - 17 Years
Study Type
INTERVENTIONAL
Enrollment
1268
Start Date
2025-02-28
Completion Date
2026-12-01
Last Updated
2025-10-06
Healthy Volunteers
Yes
Conditions
Interventions
PCV21
Investigational pneumococcal conjugate vaccine
20vPCV
20-valent pneumococcal conjugate vaccine
Locations (38)
Site # 8400008
Paramount, California, United States
Site # 8400024
Doral, Florida, United States
Site # 8400007
Hialeah, Florida, United States
Site # 8400014
Melbourne, Florida, United States
Site # 8400009
Miami, Florida, United States
Site # 8400016
Miami, Florida, United States
Site # 8400021
Fayetteville, Georgia, United States
Site # 8400004
Union City, Georgia, United States
Site # 8400003
Sioux City, Iowa, United States
Site # 8400023
Erlanger, Kentucky, United States
Site # 8400018
Biloxi, Mississippi, United States
Site # 8400012
Ridgeland, Mississippi, United States
Site # 8400002
Omaha, Nebraska, United States
Site #8400010
Binghamton, New York, United States
Site # 8400025
Rochester, New York, United States
Site # 8400001
Houston, Texas, United States
Site # 8400017
Stephenville, Texas, United States
Site # 2330006
Tallinn, Harju, Estonia
Site # 2330007
Tallinn, Harju, Estonia
Site # 2330002
Tallinn, Harju, Estonia
Site # 2330003
Tallinn, Harju, Estonia
Site # 2330001
Paide, Järvamaa, Estonia
Site # 2330005
Tartu, Tartu, Estonia
Site # 2330004
Tartu, Estonia
Site # 6160009
Lodz, Lodskie, Poland
Site # 6160007
Warsaw, Masovian Voivodeship, Poland
Site # 6160003
Częstochowa, Silesian Voivodeship, Poland
Site # 6160002
Bydgoszcz, Poland
Site # 6160004
Bydgoszcz, Poland
Site # 6160006
Kłodzko, Poland
Site # 6160001
Torun, Poland
Site # 7640002
Hat Yai, Changwat Songkhla, Thailand
Site # 7640003
Mueang Nonthaburi, Chiang Mai, Thailand
Site # 7640008
Bangkok, Thailand
Site # 7640006
Bangkok, Thailand
Site # 7640007
Bangkok, Thailand
Site # 7640004
Chiang Mai, Thailand
Site # 7640001
Pathum Thani, Thailand