A Clinical Trial of a Seasonal Influenza (Flu) Vaccine for Adults Over 50

Trial ID: mRNA-1010-P304 (UK)

Trial Details

The Fluent Trial is a Phase 3 clinical trial being conducted by Moderna to evaluate the safety and immune response of an mRNA-based investigational vaccine aimed at preventing seasonal influenza (flu) in adults 50 years of age or older. An investigational vaccine is not yet approved by a country’s drug regulatory agency and there are currently no approved mRNA seasonal flu vaccines on the market.

Seasonal flu is a respiratory illness caused by the influenza virus. The virus affects the lungs and airways and is easily spread from person to person.

mRNA vaccines aim to teach the body how to make a specific protein that may potentially help the immune system prevent or treat certain diseases. The hope is that the vaccine trains your immune system cells to “remember” these proteins and helps your body quickly protect against the strain of infection if exposed in the future. The investigational vaccine in this clinical trial, mRNA-1010, aims to protect against seasonal flu.

Flu is estimated to cause 3 to 5 million cases of severe illness and up to 650,000 deaths each year worldwide.

Estimated Enrolment

Approximately 56,000 Participants

Phase

3

Eligibility Criteria

Participants must:

  • Be 50 years of age or older
  • Be in good health
  • Not be pregnant or planning on becoming pregnant for at least 3 months following the injection visit

Participants must not:

  • Have received an approved seasonal flu vaccine in the past 6 months or investigational seasonal flu vaccine from another flu trial in the past year
  • Have had a confirmed flu infection in the past 6 months

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Site Locations

Sites are located in the towns/cities identified with the red pin:

What to Expect

Participation in the Fluent Trial will last approximately 8 months and includes at least 2 in-person visits to a clinical trial site and at least 3 phone calls with the trial team.

Participants will be given 1 injection in the upper arm.

Each participant will be randomly assigned, like flipping a coin, to receive either the investigational vaccine mRNA-1010 or a currently approved seasonal flu vaccine which will be used as a comparison to understand whether the investigational vaccine works and is safe.

All trial participants will get the same level of quality care regardless of which injection they will receive.

All trial participants will be asked to use an electronic diary (eDiary) app on their smartphone (or a provided device) to complete regular entries throughout the clinical trial.

Insurance is not needed to participate, and all trial-related procedures and exams will be covered at no cost. Qualified participants will receive payment for their trial-related time and travel.

Check Eligibility

We'll check to see if you are eligible by asking you some questions.

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Frequently Asked Questions (FAQs)