First human trial of Sanofi's mRNA COVID vaccine shows promise
NCT ID NCT04798027
First seen Nov 01, 2025 · Last updated May 15, 2026 · Updated 19 times
Summary
This study tested a new mRNA vaccine designed to protect against COVID-19 in 182 healthy adults aged 18 and older. Researchers checked for side effects and measured the body's immune response after vaccination. The trial was stopped early, but the data helps understand the vaccine's safety and ability to trigger antibodies.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Investigational Site Number :0360001
Melbourne, Victoria, 3010, Australia
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Investigational Site Number :0360002
Nedlands, Western Australia, 6009, Australia
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Investigational Site Number :0360003
Morayfield, Queensland, 4506, Australia
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Investigational Site Number :0360005
South Brisbane, Queensland, 4101, Australia
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Investigational Site Number :0760001
Salvador, Estado de Bahia, 40415-006, Brazil
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Investigational Site Number :0760003
Belo Horizonte, Minas Gerais, 30110-063, Brazil
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Investigational Site Number :0760004
Campo Grande, Mato Grosso do Sul, 79070-900, Brazil
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Investigational Site Number :3400001
San Pedro Sula, 21104, Honduras
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Investigational Site Number :3400002
Barrio del Centro, 11101, Honduras
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Investigational Site Number :8400001
Rochester, New York, 14609, United States
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Investigational Site Number :8400002
Hollywood, Florida, 33024, United States
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Investigational Site Number :8400003
Rolling Hills Estates, California, 90274, United States
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Investigational Site Number :8400004
North Charleston, South Carolina, 29405, United States
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Investigational Site Number :8400005
Salt Lake City, Utah, 84107, United States
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Investigational Site Number :8400006
Miami, Florida, 33135, United States
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Investigational Site Number :8400007
Kansas City, Missouri, 64114, United States
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Investigational Site Number :8400008
Omaha, Nebraska, 68134, United States
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Investigational Site Number :8400009
Houston, Texas, 77081, United States
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Investigational Site Number :8400010
Philadelphia, Pennsylvania, 19104, United States
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Investigational Site Number :8400015
Knoxville, Tennessee, 37920, United States
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Investigational Site Number :8400017
Iowa City, Iowa, 52242, United States
Conditions
Explore the condition pages connected to this study.