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ACTIVE NOT RECRUITING
NCT06838000
PHASE3

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

View on ClinicalTrials.gov

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

Interventions

BIOLOGICAL

PCV21

Investigational pneumococcal conjugate vaccine

BIOLOGICAL

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