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A Phase I/II Study to Investigate the Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccines MRT5421, MRT5424, and MRT5429 in Healthy Participants Aged 18 Years and Above

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Trial Profile

A Phase I/II Study to Investigate the Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccines MRT5421, MRT5424, and MRT5429 in Healthy Participants Aged 18 Years and Above

Status: Completed
Phase of Trial: Phase I/II

Latest Information Update: 25 Jun 2025

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At a glance

  • Drugs SP 0237 (Primary)
  • Indications Influenza virus infections
  • Focus Adverse reactions; Pharmacodynamics
  • Sponsors Sanofi Pasteur

Most Recent Events

  • 19 Jun 2025 Status changed from active, no longer recruiting to completed.
  • 26 Jun 2024 Status changed from recruiting to active, no longer recruiting.
  • 18 Apr 2024 New trial record

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