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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

Active, not recruiting · Phase 3 · NCT06838000

Conditions: Pneumococcal Infections

At a glance

Research payments reported, 2025
$2.1M
U.S. investigators named
22
Sites paid
19
Planned or actual enrollment
1,268

About the trial

Sponsor
Sanofi Pasteur, a Sanofi Company
Tested
PCV21 (biological), 20vPCV (biological)
Dates
Started 2025-02-28; completion 2026-12-01
Results posted
Not yet

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).

From ClinicalTrials.gov, last updated 2025-10-06. Full record, eligibility and contacts (opens in a new tab)

Industry funding

Sanofi Pasteur Inc. reported $2.1M in research payments for this study in 2025 (370 payments).

Research payments usually go to hospitals, universities and research sites to run a study, not to the investigators personally. A payment is not evidence of wrongdoing.

U.S. investigators named on this study

Clinicians the company named as principal investigators in its Open Payments reports.

Sites paid to run it

  • Acevedo Clinical Research Associates Co $445,304
  • Neostart Corporation Dba Aga Clinical Trials $362,073
  • Javara Inc $297,059
  • Velocity Clinical Research,inc $242,317
  • Dynamed Clinical Research,lp $154,193
  • Oakland Hills Dermatology PC $124,763
  • Strong Memorial Hospital, NY $97,579
  • Prohealth Research Center $84,742
  • Sky Clinical Research Network Group Integrative Skin Care of Ms Skycrng $64,184
  • Hope Research Network Trials Llc $58,247
  • Fomat Medical Research Inc $45,000
  • Massachusetts General Hospital, MA $40,000
  • $29,107
  • University of Alabama Hospital, AL $22,708
  • Center for Clinical Trials Llc $22,276
  • Prohealth Research Center Inc $16,866
  • Center for Clinical Trials,llc $15,850
  • Quality Clinical Research Inc $10,677
  • Quality Clinical Research $8,629
  • Velocity Clinical Research $497

Sources: CMS Open Payments research payments (program year 2025) and ClinicalTrials.gov, U.S. National Library of Medicine.