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Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5407 in Adult Participants18 Years of Age and Older
Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5407 in Adult Participants18 Years of Age and Older

NCT05553301

CompletedPhase 1, Phase 2

Sponsor: Sanofi Pasteur, a Sanofi Company

Conditions: Influenza Immunization

Interventions: Quadrivalent Influenza mRNA Vaccine MRT5407, Quadrivalent Recombinant Influenza Vaccine, Quadrivalent Influenza Standard Dose Vaccine, Quadrivalent Influenza High-Dose Vaccine

Countries: United States, Puerto Rico

The purpose of this study is to evaluate the safety and immunogenicity of a single intramuscular (IM) injection of up to 2 dose levels of Quadrivalent Influenza messenger ribonucleic acid (mRNA) Vaccine MRT5407 compared to an active control (QIV standard-dose (SD), QIV high-dose (HD) \[adults ≥ 65 years of age only\], or quadrivalent recombinant influenza vaccine (RIV4)) in adults 18 years of age and older.

Eligibility overview

Sex: ALL

Age: 18 Years to

Healthy volunteers: Yes

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

* Aged 18 years on the day of inclusion
* A female participant is eligible to participate if she is not pregnant or breastfeeding and one of the following conditions applies:

  * Is of non-childbearing potential. To be considered of non-childbearing potential, a female must be postmenopausal for at least 1 year, or surgically sterile OR
  * Is of childbearing potential and agrees to use an effective contraceptive method or abstinence from at least 4 weeks prior to study intervention administration until at least 12 weeks after study intervention administration.

Exclusion Criteria:

Participants are excluded from the study if any of the following criteria apply:

* Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
* Previous history of myocarditis, pericarditis, and / or myopericarditis
* Self-reported thrombocytopenia, contraindicating Intramuscular vaccination based on Investigator's judgment
* Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating Intramuscular vaccination based on Investigator's judgment
* Moderate or severe acute illness / infection (according to Investigator's judgment) or febrile illness (temperature ≥ 38.0°C \[≥ 100.4°F\]) on the day of vaccination. A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided
* Self-reported or documented seropositivity for human immunodeficiency virus, hepatitis B virus, or hepatitis C virus
* Receipt of any mRNA vaccine/product in the 2 months preceding study intervention administration

NOTE: The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
Locations (25)
  • Rolling Hills Estates, California, United States
  • San Diego, California, United States
  • San Diego, California, United States
  • DeLand, Florida, United States
  • Gainesville, Florida, United States
  • Hialeah, Florida, United States
  • Hollywood, Florida, United States
  • Miami, Florida, United States
  • Miami, Florida, United States
  • Miami, Florida, United States
  • West Palm Beach, Florida, United States
  • Melrose Park, Illinois, United States
  • River Forest, Illinois, United States
  • Indianapolis, Indiana, United States
  • Lexington, Kentucky, United States
  • Kansas City, Missouri, United States
  • Omaha, Nebraska, United States
  • North Charleston, South Carolina, United States
  • Knoxville, Tennessee, United States
  • Austin, Texas, United States
  • San Antonio, Texas, United States
  • San Antonio, Texas, United States
  • Sugar Land, Texas, United States
  • Barrio Sabana, Puerto Rico
  • San Juan, Puerto Rico